CN104088177A

CN104088177A - Rigging and preparation method thereof

Info

Publication number: CN104088177A
Application number: CN201410277514.1A
Authority: CN
Inventors: 姬长干; 马军营; 马玉倩; 阴瑞文
Original assignee: ZHENGZHOU ZHONGYUAN DEFENSE MATERIAL Co Ltd
Current assignee: ZHENGZHOU ZHONGYUAN DEFENSE MATERIAL Co Ltd
Priority date: 2013-06-20
Filing date: 2014-06-19
Publication date: 2014-10-08

Abstract

The invention relates to a rigging and a preparation method thereof, wherein the rigging comprises a rigging body. The rigging body comprises a carrier core and a sheath sleeved on the periphery of the carrier core. The carrier core comprises a plurality of single yarns disposed integrally, and each single yarn is made by packing or packing and twisting an ultrahigh molecular weight polyethylene film or strip. The technical solution provided by the invention replaces traditional UHMWPE fibers with the single yarns for the preparation of the rigging, and the rigging is high in strength utility ratio of UHMWPE film or strips, easy to process, low in cost and environmentally friendly without glue.

Description

Rigging and preparation method thereof

Technical Field

The invention relates to the field of application of high polymer materials, in particular to a rigging and a preparation method thereof.

Background

The chemical fiber rope has the advantages of light weight, high strength, wear resistance and the like, is widely applied, and gradually replaces the application range of the original natural fiber rope.

Ultra-High Molecular Weight Polyethylene (UHMW-PE) is a thermoplastic engineering plastic with a linear structure and excellent comprehensive performance, and High-strength fibers prepared from the material are one of important applications. The outstanding advantages of ultra-high molecular weight polyethylene fiber such as high strength, high modulus, low density, aging resistance, etc. have also begun to be used in the manufacture of chemical fiber ropes.

The existing ultra-high molecular weight polyethylene chemical fiber rope takes ultra-high molecular weight polyethylene gel filament fiber as a raw material. Because the ultra-high molecular weight polyethylene fiber is in a filamentous structure (the linear density of a monofilament is about 2.5 denier), in the process of preparing the chemical fiber rope by using the gel filament fiber based on the ultra-high molecular weight polyethylene, a plurality of fibers in the filamentous structure need to be respectively finished, the process is complex, the cost is high, and compared with the chemical fiber rope prepared by using other materials, the chemical fiber rope has the disadvantages of overhigh market price and large-scale application. In addition, in the process of preparing the chemical fiber rope based on the ultra-high molecular weight polyethylene fibers, burrs are easily generated on the fiber surface due to friction, and the fibers are easily subjected to phenomena of yarn breakage, twisting, winding and the like, so that the overall uniform stress of a plurality of fibers is not facilitated, the overall strength of the prepared chemical fiber rope is often lower than the total strength of the plurality of ultra-high molecular weight polyethylene fibers, and the strength utilization rate is very low.

Disclosure of Invention

The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.

The invention provides a rigging and a preparation method thereof.

In one aspect, the present invention provides a rigging comprising a rigging body;

the rigging body comprises a bearing core and a sheath sleeved on the periphery of the bearing core, the bearing core comprises a plurality of single yarns which are integrally arranged, and each single yarn is formed by bundling or twisting an ultra-high molecular weight polyethylene film or a strip.

Preferably, the ultra-high molecular weight polyethylene is polyethylene with a molecular weight of more than 100 ten thousand; the ultra-high molecular weight polyethylene film or tape itself has a certain width and thickness and is an integral structure without bonding points or cut lines.

Preferably, each single yarn is formed by bundling or bundling and twisting an ultra-high molecular weight polyethylene film or strip along the molecular chain straightening direction.

Preferably, the load-bearing core includes a plurality of single yarns integrally arranged, including: the load-bearing core comprises a plurality of single yarns which are closely and parallelly arranged into a whole.

Preferably, the load-bearing core includes a plurality of single yarns integrally arranged, including: the bearing core comprises a plurality of single yarns which are woven into a whole; alternatively, the load-bearing core comprises a plurality of sub-cores arranged closely in parallel as a whole, and each sub-core comprises a plurality of single yarns woven as a whole.

Preferably, the load-bearing core includes a plurality of single yarns integrally arranged, including: the bearing core comprises a plurality of strands woven into a whole, and each strand of strands comprises a plurality of single yarns which are closely arranged in parallel into a whole or twisted into a whole; alternatively, the load-bearing core comprises a plurality of sub-cores which are closely and parallelly arranged into a whole, each sub-core comprises a plurality of strands which are woven into a whole, and each strand comprises a plurality of single yarns which are closely and parallelly arranged into a whole or twisted into a whole.

Preferably, the load-bearing core includes a plurality of single yarns integrally arranged, including: the bearing core comprises a plurality of single yarns which are twisted into a whole; alternatively, the load-bearing core comprises a plurality of sub-cores arranged closely in parallel, each sub-core comprising a plurality of single yarns twisted as one body.

Preferably, the load-bearing core includes a plurality of single yarns integrally arranged, including: the bearing core comprises a plurality of strands which are twisted into a whole or closely arranged in parallel into a whole, and each strand of strands comprises a plurality of single yarns which are closely arranged in parallel into a whole or twisted into a whole; or the bearing core comprises a plurality of sub-cores which are arranged in close parallel, each sub-core comprises a plurality of strands which are twisted into a whole, and each strand comprises a plurality of single yarns which are arranged in close parallel into a whole or twisted into a whole.

Further, preferably, two ends of the rigging body are sewn to form a closed ring structure; or two ends of the rigging body are respectively connected with a grommet.

Preferably, the sheath comprises: a polyethylene fiber maintenance sheath, a polypropylene fiber sheath, a polyamide fiber sheath, a polyester fiber sheath, an aramid fiber sheath, or a polyvinyl chloride sheath.

Preferably, the relevant parameters of the ultra-high molecular weight polyethylene film satisfy: a linear density greater than or equal to 5000 denier; a width greater than or equal to 100 mm; the thickness is less than or equal to 0.2 mm; a breaking strength of greater than or equal to 10 grams per denier; a tensile modulus greater than or equal to 800 g/denier; an elongation at break of 6% or less.

Preferably, the ultra-high molecular weight polyethylene film has a thickness of 0.001-0.2mm, a breaking strength of 10-50 g/denier, a tensile modulus of 800-2600 g/denier, and an elongation at break of 0.5-6%.

Preferably, the ultra-high molecular weight polyethylene film has a linear density of 5000-30000 denier, a width of 100-400mm, a thickness of 0.005-0.15mm, a breaking strength of 12-48 g/denier, a tensile modulus of 1000-2500 g/denier, and an elongation at break of 0.8-4%.

Preferably, the ultra-high molecular weight polyethylene film has a linear density of 5500-20000 denier, a width of 105-300mm, a thickness of 0.008-0.12mm, a breaking strength of 15-45 g/denier, a tensile modulus of 1200-2500 g/denier, and an elongation at break of 1-3%.

Preferably, the ultra-high molecular weight polyethylene film has a linear density of 6000-12000 denier, a width of 110-220mm, a thickness of 0.01-0.1mm, a breaking strength of 16-42 g/denier, a tensile modulus of 1400-2400 g/denier, and an elongation at break of 1.5-2.5%.

Preferably, the relevant parameters of the ultra-high molecular weight polyethylene strip satisfy: the linear density is greater than or equal to 100 denier and less than 5000 denier; the width is 1-100 mm; the thickness is less than or equal to 0.2 mm; a breaking strength of greater than or equal to 10 grams per denier; a tensile modulus greater than or equal to 800 g/denier; an elongation at break of 6% or less.

Further, preferably, the ultra-high molecular weight polyethylene tape has a thickness of 0.001-0.2mm, a breaking strength of 10-50 g/denier, a tensile modulus of 800-.

Preferably, the ultra-high molecular weight polyethylene strip has a linear density of 150-4000 denier, a width of 2-90mm, a thickness of 0.003-0.1mm, a breaking strength of 12-48 g/denier, a tensile modulus of 1000-2500 g/denier, and an elongation at break of 0.8-4%.

Preferably, the ultra-high molecular weight polyethylene strip has a linear density of 200-3500 denier, a width of 3-80mm, a thickness of 0.005-0.06mm, a breaking strength of 15-45 g/denier, a tensile modulus of 1200-2400 g/denier, and an elongation at break of 1-3%.

Preferably, the ultra-high molecular weight polyethylene strip has a linear density of 300-3000 denier, a width of 5-60mm, a thickness of 0.008-0.03mm, a breaking strength of 16-42 g/denier, a tensile modulus of 1400-2400 g/denier, and an elongation at break of 1.5-2.5%.

Preferably, the outer surface of the load-bearing core is formed with a polyurethane resin layer.

In another aspect, the present invention further provides a method for preparing a rigging, which is used for preparing any one of the rigging described above, wherein the preparation method includes:

bundling or twisting ultra-high molecular weight polyethylene films or strips to prepare single yarns; arranging a plurality of single yarns integrally to prepare a bearing core;

penetrating the bearing core into the hollow sheath to obtain a rigging body of the rigging; alternatively, the load-bearing core is fed simultaneously during the braiding of the jacket with the jacket material such that the jacket is braided around the load-bearing core to produce the rigging body.

Preferably, when preparing the single yarn, the ultra-high molecular weight polyethylene film or tape is bunched or twisted along the molecular chain straightening direction.

Preferably, the step of integrally arranging the plurality of single yarns to form the load-bearing core includes: and closely and parallelly arranging a plurality of single yarns into a whole to prepare the bearing core.

Preferably, the step of integrally arranging the plurality of single yarns to form the load-bearing core includes: weaving a plurality of single yarns into a whole to prepare the bearing core; or weaving a plurality of single yarns into a whole to prepare the sub-cores, and closely arranging a plurality of sub-cores in parallel into a whole to prepare the bearing core.

Preferably, the step of integrally arranging the plurality of single yarns to form the load-bearing core includes: a plurality of single yarns are closely and parallelly arranged into a whole or twisted into a whole to prepare a yarn strand, and a plurality of yarn strands are woven into a whole to prepare the bearing core; or a plurality of single yarns are closely and parallelly arranged into a whole or twisted into a whole to prepare a yarn strand, a plurality of yarn strands are woven into a whole to prepare a sub-core, and a plurality of sub-cores are closely and parallelly arranged into a whole to prepare the bearing core.

Preferably, the step of integrally arranging the plurality of single yarns to form the load-bearing core includes: twisting a plurality of single yarns into a whole to prepare the bearing core; or twisting a plurality of single yarns into a whole to prepare the sub-cores, and closely arranging a plurality of sub-cores in parallel into a whole to prepare the bearing core.

Preferably, the step of integrally arranging the plurality of single yarns to form the load-bearing core includes: a plurality of single yarns are closely and parallelly arranged into a whole or twisted into a whole to prepare a yarn strand, and a plurality of strands are twisted into a whole to prepare the bearing core; or a plurality of single yarns are closely and parallelly arranged into a whole or twisted into a whole to prepare a yarn strand, a plurality of yarn strands are twisted into a whole to prepare a sub-core, and a plurality of sub-cores are closely and parallelly arranged into a whole to prepare the bearing core.

Further, preferably, the preparation method further comprises: sewing two ends of the rigging body to form a closed annular structure; or, two ends of the rigging body are respectively connected with a grommet.

Preferably, the method further comprises: putting the bearing core into the aqueous polyurethane resin emulsion to enable the body of the rigging or the outer surface of the rigging to be soaked in the aqueous polyurethane resin emulsion; and drying and shaping the bearing core soaked with the water-based polyurethane resin emulsion to form a polyurethane resin layer on the outer surface of the bearing core.

Further, preferably, the solid content of the aqueous polyurethane resin emulsion is 30-60% by mass; and/or the drying temperature is 50-120 ℃.

The technical scheme provided by the invention is that the single yarn formed by bundling or twisting the ultra-high molecular weight polyethylene film or strip replaces the traditional ultra-high molecular weight polyethylene fiber and is at least used for preparing the bearing core of the rigging with the sheath, and the ultra-high molecular weight polyethylene film or strip has the advantages of high strength utilization rate, easiness in processing, no glue, environmental friendliness and low cost.

These and other advantages of the present invention will become more apparent from the following detailed description of alternative embodiments of the invention, which is to be read in connection with the accompanying drawings.

Drawings

The invention may be better understood by referring to the following description in conjunction with the accompanying drawings, in which like reference numerals are used throughout the figures to indicate like or similar parts. The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments of the invention and, together with the detailed description, serve to further illustrate and explain the principles and advantages of the invention. In the drawings:

FIG. 1a is a schematic diagram of an alternative structure of an ultra-high molecular weight polyethylene film according to an embodiment of the present invention;

FIG. 1b is a schematic diagram of an alternative structure of an ultra-high molecular weight polyethylene tape provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of an alternative structure of a monofilament after a film or tape is wound up according to an embodiment of the present invention;

fig. 3 is a flowchart of a manufacturing method of a rigging according to an embodiment of the present invention;

4 a-4 b are examples of constructions of rigging bodies formed from a single yarn load-bearing core in combination with a jacket provided by embodiments of the present invention;

4 c-4 d are examples of construction of a rigging body formed by a braided load-bearing core in combination with a jacket according to an embodiment of the present invention;

fig. 4e is a structural example of the endless hoisting belt according to the embodiment of the present invention;

fig. 4f is a structural example of a sling with a grommet according to an embodiment of the present invention;

fig. 5 is a flowchart of another manufacturing method of the rigging according to the embodiment of the invention.

Skilled artisans appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help improve the understanding of the embodiments of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in the specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

It is also noted that, in order to avoid obscuring the present invention with unnecessary detail, only the device structures and/or process steps that are closely related to the solution according to the present invention are depicted in the drawings and the description, and the representation and description of the components and processes that are not so relevant to the present invention and known to those of ordinary skill in the art are omitted.

Ultra-high molecular weight polyethylene is polyethylene having a molecular weight of more than 100 ten thousand. The traditional technology of applying ultra-high molecular weight polyethylene in chemical fiber ropes is to prepare various products based on ultra-high molecular weight polyethylene fibers. The technical scheme provided by each embodiment of the invention is essentially different from the traditional technology of applying the ultra-high molecular weight polyethylene in the chemical fiber rope, and is a revolutionary innovation provided by the traditional technology, namely, the ultra-high molecular weight polyethylene film or the tape replaces the traditional ultra-high molecular weight fiber to develop and prepare the rigging, and the core idea of the invention mainly comprises the following steps:

preparing single yarn by using the ultra-high molecular weight polyethylene film or the tape instead of the traditional ultra-high molecular weight polyethylene fiber, namely: and (3) bundling or twisting the ultra-high molecular weight polyethylene film or the strip to prepare the single yarn.

And (II) bundling or bundling and twisting single yarns formed by ultra-high molecular weight polyethylene films or strips along the straightening direction of molecular chains of the single yarns to replace the traditional ultra-high molecular weight polyethylene fibers to prepare the bearing core of the rigging.

As shown in fig. 1a, the ultra-high molecular weight polyethylene film 101 is a thin sheet made of ultra-high molecular weight polyethylene and having a certain width and thickness, and the width is much greater than the thickness. As shown in fig. 1b, the ultra-high molecular weight polyethylene tapes 102 can be prepared independently or can be formed from ultra-high molecular weight polyethylene film by slitting process before and after stretching, the tapes have a width smaller than the width of the film and a thickness equal to or greater than the thickness of the film.

The ultra-high molecular weight polyethylene film or tape provided by the invention is different from the ultra-high molecular weight polyethylene fiber and is also different from a plane formed by cementing a plurality of ultra-high molecular weight polyethylene fibers, and the obvious differences are as follows: the ultra-high molecular weight polyethylene film or the tape provided by the invention has certain width and thickness, and is an integral structure without a bonding point or a cutting line; wherein: the joint points are at the positions where different parts of the strip or the film are combined into a whole by gluing, sewing or hot pressing; the trim line is generally present in the middle portion of the strip or film and does not include its presence at the edges of the strip or film.

The single yarns provided by the embodiments of the present invention are made based on ultra high molecular weight polyethylene films or tapes. In the single yarn preparation process, the ultra-high molecular weight polyethylene film or the tape is subjected to bundling or bundling twisting treatment as a whole, the single yarn prepared by the method has good structural integrity and simple preparation process, the complex process of respectively finishing a plurality of fiber yarns is omitted, the probability of burrs on the surface of the film or the tape is obviously reduced, and the probability of phenomena of yarn breakage, distortion, winding and the like in the film or the tape is also obviously reduced. The method comprises the steps of integrally arranging a plurality of single yarns prepared by the method to prepare a bearing core (the mode of integrally arranging the plurality of single yarns is very flexible, and will be illustrated hereinafter), penetrating the bearing core into a hollow sheath to prepare a rigging body, wherein when the rigging comprising the rigging body bears load, each single yarn formed by bundling or bundling and twisting an ultra-high molecular weight polyethylene film or a tape is integrally stressed, so that the strength utilization rate of the rigging body is often higher than that of a braided rope prepared by adopting ultra-high molecular weight polyethylene fibers with the same denier number in the prior art, and the cost of the former is obviously lower than that of the latter.

In addition, due to the double-layer structure of the bearing core and the sheath, the sheath is prepared by selecting chemical fiber materials with wear resistance, corrosion resistance and the like, so that the rigging combining the sheath and the bearing core has one or more advantages of long service life, ultraviolet resistance, cutting resistance, small creep deformation, oxidation resistance, non-conductivity, corrosion resistance, wear resistance, low temperature resistance and the like, and can be widely applied to various fields of aviation, aerospace, nuclear power establishment, military manufacturing, port loading and unloading, electric power devices, machine processing, chemical steel, shipbuilding, transportation and the like.

Example one

As shown in fig. 3, the present embodiment provides a method for manufacturing a rigging, which at least includes the following steps:

step S301: the ultra-high molecular weight polyethylene film or the strip is bunched or twisted to prepare the single yarn.

Step S302: and integrally arranging a plurality of single yarns to prepare the bearing core.

Step S303: penetrating the bearing core into the hollow sheath to obtain a rigging body of the rigging; alternatively, the load-bearing core is fed simultaneously during the braiding of the sheath with the sheath material, such that the sheath is braided around the load-bearing core to produce the rigging body

An alternative configuration of the single yarns in step S301 is shown in fig. 2, and the single yarns 201 may be formed by bundling ultra-high molecular weight polyethylene films or tapes. A preferred bundling process for ultra-high molecular weight polyethylene film or tape is as follows: placing the ultra-high molecular weight polyethylene film or the tape on a bobbin creel to be discharged, and winding the film or the tape on a tube core after sequentially passing through a yarn guide mechanism and a yarn bundling mechanism. The prepared single yarn has the advantages of good structural integrity, high strength utilization rate, high production efficiency, low processing cost, light weight, good flexibility and the like, wherein the strength utilization rate is the ratio (%) of the strength of the ultra-high molecular weight polyethylene film or strip product to the strength of the ultra-high molecular weight polyethylene film or strip.

Because the single yarn is formed by bundling ultra-high molecular weight polyethylene films or tapes, compared with the traditional similar product formed by cementing ultra-high molecular weight polyethylene fibers, the single yarn also has the advantages of no glue, environmental protection and the like.

In addition, preferably, during the preparation of the single yarn, the ultra-high molecular weight polyethylene film or tape can be bundled along the straightening direction of the molecular chain. Because the ultrahigh molecular weight polyethylene has a linear structure, the strength of the ultrahigh molecular weight polyethylene film or strip along the molecular chain extension direction is the maximum, and the ultrahigh molecular weight polyethylene film or strip is bundled along the molecular chain extension direction to prepare single yarns, wherein the molecular chain extension direction of the ultrahigh molecular weight polyethylene film or strip is the longitudinal stretching direction of the ultrahigh molecular weight polyethylene, and refers to the direction in which macromolecular chains of the ultrahigh molecular weight polyethylene are arranged along the longitudinal stress direction after being longitudinally stretched. For example: if the molecular chain extension direction of a certain ultra-high molecular weight polyethylene film or strip is the length direction, the ultra-high molecular weight polyethylene film or strip is formed into a single yarn parallel to the length direction after being wound along the molecular chain extension direction. The method can improve the strength of the single yarn, reduce the loss possibly caused by the strength performance of the film or the strip due to the bundling treatment and has high strength utilization rate.

Alternatively, preferably, the single yarn in step S301 may be formed by bundling and twisting an ultra-high molecular weight polyethylene film or tape, that is, the ultra-high molecular weight polyethylene film or tape is bundled and then twisted to form the single yarn.

After the single yarns are prepared, the plurality of unitary bodies may be arranged to prepare the load bearing core as described in step S302. The implementation mode of integrally arranging a plurality of single yarns is very flexible, and can include but not limited to the following implementation modes:

(1) and closely and parallelly arranging a plurality of single yarns into a whole to prepare the bearing core. An example of the construction of a rigging body formed by combining a load-bearing core (not referred to as a singles yarn load-bearing core) and a jacket resulting from this solution is shown in fig. 4a and 4b, where 41 denotes the singles yarn load-bearing core and 42 denotes the jacket.

The scheme is beneficial to reducing the loss of single yarn strength in the process as much as possible, and the prepared bearing core has higher strength utilization rate. Furthermore, if the bearing core is subjected to surface treatment such as surface soaking of polyurethane emulsion and the like, the probability of the emulsion entering the inside of the bearing core is increased, the cohesive force among different single yarns of the bearing core can be improved, and the strength, ultraviolet resistance and seawater corrosion resistance of the bearing core are improved.

(2) And weaving a plurality of single yarns into a whole to obtain the bearing core. An example of the construction of a rigging body formed by combining a load-bearing core (not referred to as a braided load-bearing core) with a jacket according to this embodiment is shown in fig. 4c and 4d, where 42 denotes the jacket and 43 denotes the braided load-bearing core.

The scheme is favorable for improving the strength of the bearing core, improving the appearance quality and the structural integrity, and is favorable for improving the wear resistance, seawater corrosion resistance, ultraviolet resistance and oxidation resistance of the braided rope.

(3) Weaving a plurality of single yarns into a whole to prepare a sub-core; and closely and parallelly arranging the multiple sub-cores into a whole to prepare the bearing core.

The scheme can prepare the bearing cores with different sizes according to the requirement of actual load, and the prepared rigging has good integral structure and high strength.

(4) Closely and parallelly arranging a plurality of single yarns into a whole to prepare a yarn strand, or twisting a plurality of single yarns into a whole to prepare a yarn strand; and weaving the multiple strands into a whole to obtain the bearing core.

For example, a plurality of single yarns are closely arranged in parallel to form a yarn strand, a plurality of yarn strands are prepared, part of the yarn strands are twisted along a first twisting direction, part of the yarn strands are twisted along a second twisting direction, and the twisted yarn strands are mutually interpenetrated and interwoven into a whole to form the bearing core, wherein the first twisting direction and the second twisting direction are opposite, such as: the first twisting direction is S direction, and the second twisting direction is Z direction; alternatively, the first twist direction is the Z direction and the second twist direction is the S direction. The twist of the yarn strand twisted in the weaving process can be determined according to actual needs, and the invention is not limited to this. The bearing core obtained by adopting the scheme has higher strength utilization rate and lower cost.

For another example, a plurality of single yarns are twisted into a single strand to produce a multi-ply strand, wherein some strands have a first lay direction and some strands have a second lay direction. And mutually inserting and interweaving a plurality of strands in the first twisting direction and a plurality of strands in the second twisting direction into a whole to obtain the bearing core. The bearing core obtained by adopting the scheme also has the advantages of higher strength utilization rate, lower cost, better appearance quality and structural integrity, better wear resistance, seawater corrosion resistance, ultraviolet resistance and oxidation resistance.

As another example, a plurality of single yarns are twisted together to form a strand, and a multi-ply strand is formed, wherein a portion of the strands have a first lay direction and a portion of the strands have a second lay direction. Twisting a plurality of strands with first twist and first twist direction along a second twist direction for a second twist, twisting a plurality of strands with third twist and second twist direction along the first twist direction for a fourth twist, and interweaving the strands into a whole to prepare the braided rope, wherein the second twist is less than the first twist, and the fourth twist is less than the third twist. The bearing core prepared by the scheme has high strength utilization rate, good appearance quality and structural integrity, and the braided rope also has good wear resistance, seawater corrosion resistance, ultraviolet resistance and oxidation resistance.

In the technical scheme, the single yarn, the yarn strand prepared from the single yarn, and the twisting direction and/or the twisting degree of the twisting of the yarn strand in the weaving process can be determined according to actual requirements. Preferably, the following steps: under the condition that the single yarn is formed by bundling and twisting an ultra-high molecular weight polyethylene film or a strip, the twist of the single yarn is 1-50/m; and/or, in case the strands are made by twisting a plurality of single yarns as one, the twist of the strands is 1-30/m; and/or, for the convenience of production and the obtainment of moderately thick and stronger braided ropes, each strand is preferably made of 2-200 single yarns. According to the scheme, the twist direction and/or twist degree of different objects in the process are/is optimally designed, so that the bearing core made of the ultra-high molecular weight polyethylene film or strip has the advantages of good compactness, difficulty in loosening, convenience in processing, low cost, high production efficiency and the like besides the advantages mentioned above.

(5) Closely and parallelly arranging a plurality of single yarns into a whole to prepare a yarn strand, or twisting a plurality of single yarns into a whole to prepare a yarn strand; weaving a plurality of strands into a whole to obtain a sub-core; and closely and parallelly arranging the multiple sub-cores into a whole to prepare the bearing core.

The scheme is favorable for improving the strength of the bearing core, improving the appearance quality and the structural integrity, and is favorable for improving the wear resistance, seawater corrosion resistance, ultraviolet resistance and oxidation resistance of the bearing core.

(6) And twisting a plurality of single yarns into a whole to prepare the bearing core.

The scheme is beneficial to reducing the loss of single yarn strength in the process as much as possible, and the prepared bearing core has higher strength utilization rate.

(7) Twisting a plurality of single yarns into a whole to prepare a sub-core; and closely and parallelly arranging the multiple sub-cores into a whole to prepare the bearing core.

The method can prepare the bearing cores with different sizes according to the requirement of actual load, and the prepared rigging has good integral structure and high strength.

(8) Closely and parallelly arranging a plurality of single yarns into a whole to prepare a yarn strand, or twisting a plurality of single yarns into a whole to prepare a yarn strand; and twisting the multiple strands into a whole to obtain the bearing core.

The twist direction and/or twist of the single yarn, the twist degree and/or twist of the single yarn strand and the integral twist direction and/or twist degree of the multi-strand yarn strand can be determined according to actual needs. Preferably, the following steps: the twisting direction of the single yarn is opposite to that of the single-strand yarn strand, and the integral twisting direction of the multi-strand yarn strand is opposite to that of the single-strand yarn strand; the twist of the single yarn is greater than the twist of the single strand, which is greater than the overall twist of the multi-strand strands. According to the scheme, through the optimized design of the twist direction and/or twist degree of the single yarn, the yarn strands and the twisted rope, the bearing core made of the ultra-high molecular weight polyethylene film or strip has the advantages of being good in compactness, not easy to loosen, convenient to process, low in cost, high in production efficiency and the like besides the advantages mentioned above.

(9) Closely and parallelly arranging a plurality of single yarns into a whole to prepare a yarn strand, or twisting a plurality of single yarns into a whole to prepare a yarn strand; twisting a plurality of strands into a whole to prepare a sub-core; and closely and parallelly arranging the multiple sub-cores into a whole to prepare the bearing core.

The scheme is favorable for improving the strength of the bearing core, improving the appearance quality and the structural integrity, can prepare the bearing cores with different sizes according to the requirement of actual load, and is favorable for improving the wear resistance, seawater corrosion resistance, ultraviolet resistance and oxidation resistance of the bearing core.

The bearing core is prepared by any method, and the bearing core penetrates into the hollow sheath to obtain the rigging body. Or after the bearing core is prepared by any method, the bearing core is fed to a braiding machine simultaneously in the process of braiding the sheath by using the material for the sheath based on the braiding machine, so that the sheath is braided around the bearing core to prepare the rigging body. The sheath can be made of a material selected from one or more of wear resistance, temperature resistance, corrosion resistance, oxidation resistance, etc. according to the needs of the field of use, and preferably, the following sheaths can be selected but not limited to: a polyethylene fiber maintenance sheath, a polypropylene fiber sheath, a polyamide fiber sheath, a polyester fiber sheath, an aramid fiber sheath, or a polyvinyl chloride sheath. Wherein, adopt polyethylene fibre to maintain the wearability that cover or polypropylene fiber sheath can improve the rigging, adopt polyvinyl chloride sheath can improve the corrosion resistance and the oxidation resistance of rigging, adopt aramid fiber sheath can improve the temperature toleration of rigging.

The rigging body can be used as a rope. Or, in order to meet the use requirements of different fields, the rigging body can be processed.

For example: one or more layers of sheaths can be sleeved on the rigging body, and the sheaths of different layers are made of the same or different materials so as to meet the special requirements of different application fields on the rigging.

Or, the rigging body can be processed to facilitate hoisting. For example: the ends of the body of the rigging can be sewn to form a closed loop structure, and the product form of the rigging with this structure can be referred to as a grommetless endless sling, and an example of the structure of the endless sling is shown in fig. 4e, in which 45 denotes the endless sling. Another example is: the two ends of the rigging body are respectively connected with a grommet, the product form of the rigging with the structure can be, but is not limited to, a sling with a grommet, and the structure of the sling with a grommet is shown in fig. 4f, where 46 denotes the sling, 47 denotes the grommet, the material and the structure of the grommet, and the invention is not limited, for example: the grommet can be made of the same material and structure as the rigging body, and the two ends of the rigging body are respectively bent and sewn into a grommet shape in the preparation process; or, the grommet may also be made of a material and have a structure different from those of the rigging body, and the two ends of the rigging body are respectively wound with a grommet (such as a steel ring) and then sewn with the rigging body. The hoisting belt prepared by the scheme has the following advantages: the volume is small, the weight is light, the flexibility is good, the carrying is convenient, and the use is convenient; the appearance of the hung object is not damaged, and the maintainability is strong; the structure integrity is good, the lifting is stable, and the safety factor is high; the strength is high, and the strength utilization rate is high; the labor efficiency is high, and the manufacturing cost is low; long service life, ultraviolet resistance, small creep, small density, oxidation resistance, non-conductivity, corrosion resistance, good wear resistance and good low temperature resistance.

Preferably, the relevant parameters of the ultra-high molecular weight polyethylene film in the embodiments of the present invention satisfy: a linear density greater than or equal to 5000 denier; a width greater than or equal to 100 mm; the thickness is less than or equal to 0.2 mm; a breaking strength of greater than or equal to 10 grams per denier; a tensile modulus greater than or equal to 800 g/denier; an elongation at break of 6% or less.

Further, preferably, the ultra-high molecular weight polyethylene film has a thickness of 0.001 to 0.2mm, a breaking strength of 10 to 50 g/denier, a tensile modulus of 800-.

The performance of the load-bearing core prepared by preferably selecting the ultra-high molecular weight polyethylene film meeting the parameter requirements is better.

Preferably, the related parameters of the ultra-high molecular weight polyethylene tape provided in the embodiments of the present invention satisfy: the linear density is greater than or equal to 100 denier and less than 5000 denier; the width is 1-100 mm; the thickness is less than or equal to 0.2 mm; a breaking strength of greater than or equal to 10 grams per denier; a tensile modulus greater than or equal to 800 g/denier; an elongation at break of 6% or less.

The rigging made from ultra high molecular weight polyethylene tapes preferably meet the above parameter requirements for better performance.

In the embodiments of the invention, the bearing core is prepared by taking the ultra-high molecular weight polyethylene film or the tape as a material, and the ultra-high molecular weight polyethylene film or the tape has an integral structure without a joint point or a cutting line, which is different from the filamentous structure of the ultra-high molecular weight polyethylene fiber in the prior art, so that the high molecular weight polyethylene film or the tape is taken as an integral bundle to prepare single yarn in the process of preparing the bearing core, the complex process of respectively finishing a plurality of fiber yarns is omitted, and the probability of yarn breakage, distortion, winding and other phenomena in the film or the tape is obviously reduced.

When the rigging comprising the bearing core provided by the embodiments of the invention bears load, the single yarns after the ultra-high molecular weight polyethylene film or the tapes are wound are integrally stressed, so that the strength utilization rate of the rigging to the ultra-high molecular weight polyethylene film or the tapes is high, and the cost of the rigging is obviously lower than that of the rope in the latter. In addition, the novel anti-corrosion wear-resistant cable has the advantages of light weight, corrosion resistance, wear resistance, ultraviolet resistance, long service life, portability and the like.

Example two

Different from the first embodiment, in the technical solution provided in this embodiment, a polyurethane resin layer is further formed on the outer surface of the load-bearing core, and a preferred process step of the process is shown in fig. 5, and includes:

step S501: the ultra-high molecular weight polyethylene film or the strip is bunched or twisted to prepare the single yarn.

Step S502: and integrally arranging a plurality of single yarns to prepare the bearing core.

Step S503: and putting the bearing core into the aqueous polyurethane resin emulsion to enable the outer surface of the bearing core to infiltrate into the aqueous polyurethane resin emulsion.

Step S504: and drying and shaping the bearing core soaked with the water-based polyurethane resin emulsion to form a polyurethane resin layer on the outer surface of the bearing core.

Step S505: penetrating the bearing core into the hollow sheath to obtain a rigging body of the rigging; alternatively, the load-bearing core is fed simultaneously during the braiding of the jacket with the jacket material such that the jacket is braided around the load-bearing core to produce the rigging body.

The step S503 is equivalent to performing a surface coating process on the carrier core, and the step S504 is equivalent to performing a drying and shaping process on the carrier core after the surface treatment. Preferably, the solid content percentage (i.e. solid content by weight) of the aqueous polyurethane resin emulsion is 30-60%; and/or the drying temperature is between 50 and 120 ℃. For example, when the bearing core is soaked in Lago series aqueous polyurethane resin emulsion with the solid content of 40 percent by mass, the bearing core soaked with the aqueous polyurethane resin emulsion is dried and shaped at the temperature of 80 ℃, and tests show that the bearing core subjected to the surface coating treatment and the drying and shaping treatment has the advantages that the density of the bearing core wire, the breaking strength and other properties are obviously improved, the density of the bearing core wire can be improved by about 8 percent, and the breaking strength can be improved by about 8-10 percent.

EXAMPLE III

The embodiment provides a rigging, a bearing core is an 8-strand braided rope, and the preparation method comprises the following steps:

the ultra-high molecular weight polyethylene tapes with the linear density of 300 denier, the width of 3mm, the thickness of 0.02mm, the breaking strength of 28 g/denier, the tensile modulus of 1700 g/denier and the breaking elongation of 1.9 percent are bundled to prepare single yarns. And (3) collecting 53 single yarns into a whole to prepare a strand of yarn. Weaving 8 strands by a weaving machine, wherein part of the shaft of the weaving machine rotates along the S direction to twist 4 strands along the S direction (the twist is 15/m), part of the shaft of the weaving machine rotates along the Z direction to twist the rest 4 strands along the Z direction (the twist is 15/m), and the strands after twisting are mutually woven into a whole, so that a bearing core is woven, and the diameter of the bearing core is 8 mm.

The carrier core is simultaneously fed to the braiding machine during braiding of the rigging sheath with polyester fibers based on the braiding machine such that the sheath is braided around the carrier core to produce the rigging body. The rigging body can be used as a rope, such as a high-pressure hauling rope.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal materials testing machine and GB/T8834 (national Standard ropes for the determination of physical and mechanical Properties). The testing shows that the linear density of the rigging manufactured by the method in the embodiment is 34.1ktex, the breaking strength is 51KN, the breaking strength is 17 g/denier, and the strength utilization rate is 60.7%.

Example four

The present invention provides a rigging, in which a load-bearing core is formed by closely arranging a plurality of single yarns in parallel into a whole, and the product may be, but is not limited to, a high-pressure hauling rope, and the preparation method thereof is as follows:

ultra-high molecular weight polyethylene tapes having a linear density of 2400 denier, a width of 24mm, a thickness of 0.02mm, a breaking strength of 28 g/denier, a tensile modulus of 1700 g/denier and an elongation at break of 1.9% were bundled. The 112 single yarns were arranged closely and parallelly to form a load-bearing core having a diameter of 8 mm.

And weaving polyester fibers into a hollow sheath with the size matched with that of the bearing core, and penetrating the bearing core into the polyester fiber sheath to obtain the rigging body. The rigging body can be used as a rope, such as a high-pressure hauling rope.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal materials testing machine and GB/T8834 test standard. Tests show that the linear density of the rigging manufactured by the method is 34.1ktex, the breaking strength is 55KN, the breaking strength is 18.3 g/denier, and the strength utilization rate is 65.4%.

EXAMPLE five

The present embodiment provides a rigging, in which the load-bearing core is a 12-strand braided rope, and the product form of the rigging can be, but is not limited to, a high-pressure pulling rope, and the preparation method is as follows:

the ultra-high molecular weight polyethylene film with the linear density of 6000 denier, the width of 108mm, the thickness of 0.011mm, the breaking strength of 26 g/denier, the tensile modulus of 1600 g/denier and the breaking elongation of 2.1 percent is bundled to prepare single yarns. And (3) bundling 58 single yarns into a whole to prepare a strand of yarn. Weaving 12 strands by a weaving machine, wherein part of the shaft of the weaving machine rotates along the S direction to twist 6 strands along the S direction (the twist is 15/m), part of the shaft of the weaving machine rotates along the Z direction to twist the rest 6 strands along the Z direction (the twist is 15/m), and the strands after twisting are mutually woven into a whole so as to weave a bearing core, wherein the diameter of the bearing core is 30 mm.

The load-bearing core is simultaneously fed to the braiding machine during braiding of the rigging sheath with polyamide fibers based on the braiding machine such that the sheath is braided around the load-bearing core to produce the rigging body. The rigging body can be used as a rope, such as a high-pressure hauling rope.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal materials testing machine and GB/T8834 test standard. Tests show that the linear density of the rigging manufactured by the method is 491.5ktex, the breaking strength is 680KN, the breaking strength is 15.7 g/denier, and the strength utilization rate is 60.4%.

EXAMPLE six

the ultra-high molecular weight polyethylene film with the linear density of 10000 denier, the width of 180mm, the thickness of 0.011mm, the breaking strength of 26 g/denier, the tensile modulus of 1600 g/denier and the breaking elongation of 2.1 percent is bundled. The 420 single yarns are closely and parallelly arranged into a whole to prepare a bearing core, and the diameter of the bearing core is 30 mm.

In the process of braiding a rigging sheath with polyamide fibers based on a braiding machine, a carrier core is simultaneously fed to the braiding machine such that the sheath is braided around the carrier core to produce a rigging body. The rigging body can be used as a rope, such as a high-pressure hauling rope.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal materials testing machine and GB/T8834 test standard. Tests show that the linear density of the rigging manufactured by the method is 491.5ktex, the breaking strength is 742KN, the breaking strength is 17.1 g/denier, and the strength utilization rate is 65.8%.

EXAMPLE seven

The present embodiment provides a rigging, wherein the load-bearing core is a 16-strand braided rope, and the product form of the rigging can be, but is not limited to, a high-pressure traction rope, and the preparation method is as follows:

a single yarn was obtained by collecting an ultra-high molecular weight polyethylene film having a linear density of 12000 denier, a width of 220mm, a thickness of 0.009mm, a breaking strength of 40 g/denier, a tensile modulus of 2400 g/denier and an elongation at break of 1.5%. And (3) bundling 63 single yarns into a whole to prepare a strand of yarn. And (2) braiding 16 strands by a braiding machine, wherein part of the shaft of the braiding machine rotates along the S direction to twist 8 strands along the S direction (the twist is 15/m), part of the shaft of the braiding machine rotates along the Z direction to twist the rest 8 strands along the Z direction (the twist is 15/m), and the strands after twisting are mutually woven into a whole in an inserting manner so as to braid to prepare a bearing core, wherein the diameter of the bearing core is 36 mm.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal materials testing machine and GB/T8834 test standard. The testing shows that the linear density of the rigging manufactured by the method is 678.5ktex, the breaking strength is 1521KN, the breaking strength is 25.4 g/d, and the strength utilization rate is 63.5%.

Example eight

ultra-high molecular weight polyethylene tapes having a linear density of 4000 denier, a width of 60mm, a thickness of 0.008mm, a breaking strength of 42 g/denier, a tensile modulus of 2200 g/denier and an elongation at break of 1.7% were bundled. 1530 single yarns were arranged in close parallel alignment to produce a load-bearing core having a diameter of 40 mm.

In the process of braiding a rigging sheath with polyamide fibers based on a braiding machine, a carrier core is simultaneously fed to the braiding machine such that the sheath is braided around the carrier core to produce a rigging body. The rigging body can be used as a rope, and the product form can be but is not limited to a high-pressure traction rope.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal materials testing machine and GB/T8834 test standard. The testing shows that the linear density of the rigging manufactured by the method is 767.7ktex, the breaking strength is 1857KN, the breaking strength is 27.4 g/d, and the strength utilization rate is 65.2%.

Example nine

The embodiment provides a rigging, the bearing core is 8 strands of braided ropes, the product expression form can be but not limited to a hoisting belt, and the preparation method is as follows:

the ultra-high molecular weight polyethylene tapes with the linear density of 300 denier, the width of 3mm, the thickness of 0.02mm, the breaking strength of 28 g/denier, the tensile modulus of 1700 g/denier and the breaking elongation of 1.9 percent are bundled to prepare single yarns. And (4) bundling a plurality of single yarns into a whole to obtain a strand of yarn. Weaving 8 strands by a weaving machine, wherein part of the shaft of the weaving machine rotates along the S direction to twist 4 strands along the S direction (the twist is 15/m), part of the shaft of the weaving machine rotates along the Z direction to twist the rest 4 strands along the Z direction (the twist is 15/m), and the strands after twisting are mutually woven into a whole, so that a bearing core is woven, the thickness of the bearing core is approximate to 25mm, and the width of the bearing core is approximate to 45 mm.

In the process of braiding a rigging sheath with polyester fibers based on a braiding machine, the carrier core is simultaneously fed to the braiding machine such that the sheath is braided around the carrier core to produce a rigging body. Two ends of the rigging body are respectively connected with a grommet, so that the rigging is obtained. The product of the rigging can be represented by, but not limited to, a hoisting belt with a grommet (or referred to as a hoisting ring).

The rigging made by the method of this example was tested for performance using the Instron SATEC series horizontal materials testing machine and JB/T8521.2 (machine industry Standard braided Sling safety part 2: general purpose synthetic fiber circular sling) test Standard. Tests prove that the ultimate working load of the rigging manufactured by the method is 4t, the breaking strength is 16.8 g/d, and the strength utilization rate is 60%, wherein the breaking strength of the hoisting belt is the breaking strength of the hoisting belt divided by the linear density of the hoisting belt; the breaking strength refers to the maximum force when the hoisting belt is broken, and the force is generally not less than 6 times of the ultimate working load; the ultimate working load is the maximum load when the hoisting belt is lifted vertically, and is also the maximum load which can be borne by a single-limb hoisting belt or a combined multi-limb hoisting belt in general lifting operation.

Example ten

The present invention provides a rigging, wherein a load-bearing core is formed by closely arranging a plurality of single yarns in parallel into a whole, and the product may be, but is not limited to, a hoisting belt, and the preparation method is as follows:

ultra-high molecular weight polyethylene tapes having a linear density of 2400 denier, a width of 24mm, a thickness of 0.02mm, a breaking strength of 28 g/denier, a tensile modulus of 1700 g/denier and an elongation at break of 1.9% were bundled. A plurality of single yarns are closely arranged in parallel to form a whole, so that the bearing core is manufactured, and the bearing core is approximately 22mm thick and 35mm wide.

And weaving polyamide fibers into a hollow sheath with the size matched with that of the bearing core, and penetrating the bearing core into the polyamide fiber sheath to obtain the rigging body. The two ends of the rigging body are sewn to form a closed loop structure, thereby obtaining the rigging. The product appearance of the rigging can be, but is not limited to, an annular hoisting belt.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal Material testing machine and the JB/T8521.2 test Standard. The tests show that the ultimate working load of the rigging manufactured by the method in the embodiment is 6t, the breaking strength is 18.6 g/denier, and the strength utilization rate is 66.4%.

EXAMPLE eleven

The embodiment provides a rigging, the load-bearing core is a 12-strand braided rope, the product expression form can be but not limited to a hoisting belt, and the preparation method comprises the following steps:

the ultra-high molecular weight polyethylene film with the linear density of 6000 denier, the width of 108mm, the thickness of 0.011mm, the breaking strength of 26 g/denier, the tensile modulus of 1600 g/denier and the breaking elongation of 2.1 percent is bundled to prepare single yarns. And (4) bundling a plurality of single yarns into a whole to obtain a strand of yarn. Weaving 12 strands by a weaving machine, wherein part of the shaft of the weaving machine rotates along the S direction to twist 6 strands along the S direction (the twist is 15/m), part of the shaft of the weaving machine rotates along the Z direction to twist the rest 6 strands along the Z direction (the twist is 15/m), and the strands after twisting are mutually woven into a whole in an inserting way so as to weave a bearing core, wherein the bearing core is approximately 32mm in thickness and 55mm in width.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal Material testing machine and the JB/T8521.2 test Standard. The tests show that the ultimate working load of the rigging manufactured by the method in the embodiment is 6t, the breaking strength is 15.9 g/denier, and the strength utilization rate is 61.2%.

Example twelve

the ultra-high molecular weight polyethylene film with the linear density of 10000 denier, the width of 180mm, the thickness of 0.011mm, the breaking strength of 26 g/denier, the tensile modulus of 1600 g/denier and the breaking elongation of 2.1 percent is bundled. A plurality of single yarns are closely and parallelly arranged into a whole to prepare the bearing core, and the bearing core is approximately 38mm in thickness and 70mm in width.

In the process of braiding a rigging sheath with polyamide fibers based on a braiding machine, a carrier core is simultaneously fed to the braiding machine such that the sheath is braided around the carrier core to produce a rigging body. The two ends of the rigging body are sewn to form a closed loop structure, thereby obtaining the rigging. The product appearance of the rigging can be, but is not limited to, an annular hoisting belt.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal Material testing machine and the JB/T8521.2 test Standard. The tests show that the ultimate working load of the rigging manufactured by the method in the embodiment is 20t, the breaking strength is 17.4 g/denier, and the strength utilization rate is 66.9%.

EXAMPLE thirteen

The embodiment provides a rigging, the load-bearing core is 16 strands of braided ropes, the product performance form can be but not limited to a hoisting belt, and the preparation method is as follows:

a single yarn was obtained by collecting an ultra-high molecular weight polyethylene film having a linear density of 12000 denier, a width of 220mm, a thickness of 0.009mm, a breaking strength of 40 g/denier, a tensile modulus of 2400 g/denier and an elongation at break of 1.5%. And (4) bundling a plurality of single yarns into a whole to obtain a strand of yarn. And (2) braiding 16 strands by a braiding machine, wherein part of the shaft of the braiding machine rotates along the S direction to twist 8 strands along the S direction (the twist is 15/m), part of the shaft of the braiding machine rotates along the Z direction to twist the rest 8 strands along the Z direction (the twist is 15/m), and the strands after twisting are mutually woven into a whole in an inserting manner so as to obtain a bearing core by braiding, wherein the bearing core is approximately 45mm in thickness and 80mm in width.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal Material testing machine and the JB/T8521.2 test Standard. The tests show that the ultimate working load of the rigging manufactured by the method in the embodiment is 15t, the breaking strength is 25.7 g/denier, and the strength utilization rate is 64.3%.

Example fourteen

ultra-high molecular weight polyethylene tapes having a linear density of 4000 denier, a width of 60mm, a thickness of 0.008mm, a breaking strength of 42 g/denier, a tensile modulus of 2200 g/denier and an elongation at break of 1.7% were bundled. A plurality of single yarns are closely arranged in parallel to form a whole, so that the bearing core is manufactured, and the bearing core is approximately 65mm thick and 130mm wide.

The rigging made by the method of this example was tested for performance using an Instron SATEC series horizontal Material testing machine and the JB/T8521.2 test Standard. The tests show that the ultimate working load of the rigging manufactured by the method in the embodiment is 80t, the breaking strength is 27.6 g/denier, and the strength utilization rate is 65.7%.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A rigging, characterized in that the rigging comprises a rigging body;

2. Rigging according to claim 1,

the ultra-high molecular weight polyethylene is polyethylene with the molecular weight of more than 100 ten thousand;

the ultra-high molecular weight polyethylene film or tape itself has a certain width and thickness and is an integral structure without bonding points or cut lines.

3. The rigging of claim 1, wherein each of said single yarns is formed by binding or binding and twisting an ultra-high molecular weight polyethylene film or tape in a direction in which its molecular chains are straightened.

4. The rigging of claim 1, wherein the load-bearing core comprises a plurality of unitary yarns integrally disposed, comprising:

the bearing core comprises a plurality of single yarns which are closely and parallelly arranged into a whole; or,

the bearing core comprises a plurality of single yarns which are woven into a whole; or,

the bearing core comprises a plurality of bundles of sub-cores which are closely arranged in parallel into a whole, and each bundle of sub-cores comprises a plurality of single yarns which are woven into a whole; or,

the bearing core comprises a plurality of strands woven into a whole, and each strand of strands comprises a plurality of single yarns which are closely arranged in parallel into a whole or twisted into a whole; or,

the bearing core comprises a plurality of sub-cores which are closely and parallelly arranged into a whole, each sub-core comprises a plurality of strands which are woven into a whole, and each strand comprises a plurality of single yarns which are closely and parallelly arranged into a whole or twisted into a whole; or,

the bearing core comprises a plurality of single yarns which are twisted into a whole; or,

the bearing core comprises a plurality of bundles of sub-cores which are arranged in close parallel, and each bundle of sub-cores comprises a plurality of single yarns which are twisted into a whole; or,

the bearing core comprises a plurality of strands which are twisted into a whole or closely arranged in parallel into a whole, and each strand of strands comprises a plurality of single yarns which are closely arranged in parallel into a whole or twisted into a whole; or,

the bearing core comprises a plurality of bundles of sub-cores which are closely arranged in parallel, each bundle of sub-cores comprises a plurality of strands which are twisted into a whole, and each strand of strands comprises a plurality of single yarns which are closely arranged in parallel into a whole or twisted into a whole.

5. The rigging according to claim 1, wherein the ends of the rigging body are stitched to form a closed loop; or two ends of the rigging body are respectively connected with a grommet.

6. The rigging of claim 1, wherein the jacket comprises: a polyethylene fiber maintenance sheath, a polypropylene fiber sheath, a polyamide fiber sheath, a polyester fiber sheath, an aramid fiber sheath, or a polyvinyl chloride sheath.

7. Rigging according to claim 1,

the related parameters of the ultra-high molecular weight polyethylene film meet the following requirements: a linear density greater than or equal to 5000 denier; a width greater than or equal to 100 mm; the thickness is less than or equal to 0.2 mm; a breaking strength of greater than or equal to 10 grams per denier; a tensile modulus greater than or equal to 800 g/denier; elongation at break less than or equal to 6%;

or,

the related parameters of the ultra-high molecular weight polyethylene strip meet the following conditions: the linear density is greater than or equal to 100 denier and less than 5000 denier; the width is 1-100 mm; the thickness is less than or equal to 0.2 mm; a breaking strength of greater than or equal to 10 grams per denier; a tensile modulus greater than or equal to 800 g/denier; an elongation at break of 6% or less.

8. Rigging according to claim 1, wherein the outer surface of the load-bearing core is formed with a layer of polyurethane resin.

9. A method for making a rigging, for use in making a rigging according to any one of claims 1 to 8, wherein the method comprises:

bundling or twisting ultra-high molecular weight polyethylene films or strips to prepare single yarns;

arranging a plurality of single yarns integrally to prepare a bearing core;

penetrating the bearing core into a hollow sheath to prepare a rigging body of the rigging; alternatively, the load-bearing core is fed simultaneously during the braiding of the jacket with the jacket material such that the jacket is braided around the load-bearing core to produce the rigging body.

10. The method of claim 9, wherein said single yarn is produced by binding or twisting said ultra-high molecular weight polyethylene film or tape in a direction in which the molecular chain thereof is straightened.