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CN105801932A - Rubber threading plug and preparation process thereof - Google Patents

Rubber threading plug and preparation process thereof Download PDF

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Publication number
CN105801932A
CN105801932A CN201610239066.5A CN201610239066A CN105801932A CN 105801932 A CN105801932 A CN 105801932A CN 201610239066 A CN201610239066 A CN 201610239066A CN 105801932 A CN105801932 A CN 105801932A
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CN
China
Prior art keywords
parts
wire passing
agent
softening agent
rubber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610239066.5A
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Chinese (zh)
Inventor
王晓倩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shiajiazhuang Beike Sealing Technology Co Ltd
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Shiajiazhuang Beike Sealing Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shiajiazhuang Beike Sealing Technology Co Ltd filed Critical Shiajiazhuang Beike Sealing Technology Co Ltd
Priority to CN201610239066.5A priority Critical patent/CN105801932A/en
Publication of CN105801932A publication Critical patent/CN105801932A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/24Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/242Applying crosslinking or accelerating agent onto compounding ingredients such as fillers, reinforcements
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/06Sulfur
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/10Esters; Ether-esters
    • C08K5/12Esters; Ether-esters of cyclic polycarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2309/00Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08J2309/02Copolymers with acrylonitrile
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2296Oxides; Hydroxides of metals of zinc
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention relates to a rubber threading plug and a preparation process thereof, and belongs to the technical field of rubber product processing.The rubber threading plug is prepared from, by mass, 90-110 parts of crude rubber NBR1052, 40-60 parts of carbon black N550, 20-40 parts of carbon black N774, 3-7 parts of softener DOP, 1-2.5 parts of softener RD, 1-2.5 parts of softener MB, 0.5-1.2 parts of softener WAX, 3-7 parts of compounding agent ZnO-A, 1-2.5 parts of adhesive SA, 2-4 parts of adhesive 1102, 0.5-1.2 parts of S, 1-2.5 parts of vulcanizing agent TT and 1-3 parts of vulcanizing agent CZ.The raw materials are sequentially subjected to mixing, vulcanizing forming, finishing and secondary vulcanizing to obtain the rubber threading plug finished product.The rubber threading plug is moderate in elasticity, can allow a wire to easily penetrate through, can also have a good sealing effect and is high in wear resistance, and the service life is greatly prolonged.

Description

A kind of rubber wire passing plug and preparation technology thereof
Technical field
The invention belongs to rubber processing technique field, be specifically related to a kind of rubber wire passing plug and system thereof Standby technique.
Background technology
Wire passing plug is mainly used in electric wire process of deployment fixing electric wire and protecting, initial wire passing plug For plastic material, it can be fixed protection to wire, but requires the occasion of sealing at some, Owing to the hardness of plastic material is relatively big, the worn diameter of wire is necessarily less than through wires hole, the use of wire passing plug Can not reach the use requirement sealed, the use of rubber wire passing plug can solve the problem that this problem, but existing The elasticity of some rubber wire passing plug can not make electric wire pass well, and the elasticity of life-time service can be increasingly Difference, sealing effectiveness cannot be steady in a long-term, and service life is shorter.
Summary of the invention
The shortcoming that instant invention overcomes prior art, it is provided that a kind of rubber wire passing plug and preparation technology thereof, This rubber wire passing plug elasticity is moderate, and wearability is good, elastically keeps preferably, and sealing effectiveness is stable, compares In existing rubber wire passing plug, significantly extend service life.
The concrete technical scheme of the present invention is:
A kind of rubber wire passing plug, the through wires hole that this wire passing plug is provided through in the axial direction, crucial Point is that the raw material preparing this wire passing plug includes carrying out 90-110 part rubber of proportioning according to mass fraction NBR1052,40-60 part white carbon black N550,20-40 part white carbon black N774,3-7 part softening agent DOP, 1-2.5 Part softening agent RD, 1-2.5 part softening agent MB, 0.5-1.2 part softening agent WAX, 3-7 part compounding ingredient ZnO-A, 1-2.5 part binding agent SA, 2-4 part binding agent 1102,0.5-1.2 part S, 1-2.5 part sulfur Agent TT, 1-3 part vulcanizing agent CZ.
The described raw material preparing this wire passing plug includes carry out proportioning according to mass fraction 100 parts NBR1052,50 parts of white carbon black N550,30 parts of white carbon black N774,5 parts of softening agent DOP, 1.5 parts of softening agents RD, 1.5 parts of softening agent MB, 0.8 part of softening agent WAX, 5 parts of compounding ingredient ZnO-A, 1.5 parts of binding agents SA, 1102,0.8 part of S of 3 parts of binding agents, 1.5 parts of vulcanizing agent TT, 2 parts of vulcanizing agent CZ.
The described raw material preparing this wire passing plug includes carry out proportioning according to mass fraction 90 parts NBR1052,45 parts of white carbon black N550,25 parts of white carbon black N774,5 parts of softening agent DOP, 1.5 parts of softening agents RD, 1.5 parts of softening agent MB, 1 part of softening agent WAX, 6 parts of compounding ingredient ZnO-A, 1.8 parts of binding agents SA, 1102,1 part of S of 2 parts of binding agents, 2 parts of vulcanizing agent TT, 2 parts of vulcanizing agent CZ.
The described raw material preparing this wire passing plug includes carry out proportioning according to mass fraction 100 parts NBR1052,60 parts of white carbon black N550,40 parts of white carbon black N774,7 parts of softening agent DOP, 2 parts of softening agents RD, 1.5 parts of softening agent MB, 1 part of softening agent WAX, 3 parts of compounding ingredient ZnO-A, 1 part of binding agent SA, 1102,1.2 parts of S of 2 parts of binding agents, 2 parts of vulcanizing agent TT, 1 part of vulcanizing agent CZ.
The described raw material preparing this wire passing plug includes carry out proportioning according to mass fraction 110 parts NBR1052,50 parts of white carbon black N550,20 parts of white carbon black N774,4 parts of softening agent DOP, 2 parts of softening agents RD, 2 parts of softening agent MB, 0.8 part of softening agent WAX, 4 parts of compounding ingredient ZnO-A, 2 parts of binding agent SA, 1102,1 part of S of 4 parts of binding agents, 2.5 parts of vulcanizing agent TT, 3 parts of vulcanizing agent CZ.
The preparation technology of the wire passing plug of proportioning raw materials as mentioned above, key point is, described preparation technology Step as follows:
A raw material prepares
Each for described raw material constituent according to mass fraction proportioning and uniformly being mixed, the raw material obtained is standby With;
B is mixing
Raw material is carried out mixing, obtains elastomeric compound;
C sulfidization molding
Elastomeric compound is carried out sulfidization molding, obtains rubber wire passing plug semi-finished product;
D repairs
Rubber wire passing plug semi-finished product are carried out appearance finishing so that it is Glabrous limit;
E post-cure
Rubber wire passing plug semi-finished product after finishing are vulcanized again, finally gives rubber wire passing plug Product.
In described step A, before raw material carries out proportioning, rubber NBR1052 is plasticated.
In described step C, the equipment used by sulfidization molding is vulcanizing press.
The invention has the beneficial effects as follows: in the present invention, rubber wire passing plug is to add white carbon black, soft in rubber Agent, compounding ingredient, binding agent and vulcanizing agent improve the intensity of wire passing plug, elasticity and wearability, make During by rubber wire passing plug in the present invention, electric wire can easily through in the through wires hole of rubber wire passing plug and Not having elastomeric material abrasion, the elasticity of rubber makes electric wire be tightly fixed in through wires hole, seals Effect is preferable, uses the mode of post-cure to improve the mechanical property of rubber wire passing plug, increasing in the preparation Adding its stability, the using effect of rubber wire passing plug is steady in a long-term, and service life is longer.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of rubber wire passing plug preparation technology in the present invention.
Detailed description of the invention
The present invention relates to a kind of rubber wire passing plug and preparation technology thereof, this rubber wire passing plug is at axis direction On the through wires hole that is provided through, electric wire is fixed through through wires hole, and the diameter of through wires hole is less than institute Wear the diameter of electric wire, utilize the elasticity of rubber to carry out through wires hole and both sides, line contacts position completely cutting off close Envelope, dust, water, oil and other impurity all can not pass through through wires hole, prepare the raw material bag of this wire passing plug Include according to mass fraction carry out proportioning 90-110 part rubber NBR1052,40-60 part white carbon black N550, 20-40 part white carbon black N774,3-7 part softening agent DOP, 1-2.5 part softening agent RD, 1-2.5 part softens Agent MB, 0.5-1.2 part softening agent WAX, 3-7 part compounding ingredient ZnO-A, 1-2.5 part binding agent SA, 2-4 part binding agent 1102,0.5-1.2 part S, 1-2.5 part vulcanizing agent TT, 1-3 part vulcanizing agent CZ, Above-mentioned constituent is used to carry out the preparation of rubber wire passing plug.
Embodiment 1, as it is shown in figure 1, prepare the raw material of rubber wire passing plug before carrying out proportioning, first will Rubber NBR1052 plasticates, and the process of plasticating can increase the plasticity of rubber, is conducive to being sulfided into Molding effect in the type course of processing, plasticates after end, various constituents is mixed, then Carrying out the preparation of rubber wire passing plug, preparation technology specifically comprises the following steps that
A raw material prepares
According to mass fraction ratio, prepare 100 parts of NBR1052,50 parts of white carbon black N550,30 parts of white carbon blacks N774,5 parts of softening agent DOP, 1.5 parts of softening agent RD, 1.5 parts of softening agent MB, 0.8 part of softening agent WAX, 5 parts of compounding ingredient ZnO-A, 1.5 parts of binding agent SA, 1102,0.8 part of S of 3 parts of binding agents, 1.5 Part vulcanizing agent TT, 2 parts of vulcanizing agent CZ, obtain preparation and produce line plug after above-mentioned constituent uniformly being mixed Raw material, standby;
B is mixing
Use mixing roll to carry out mixing to uniform mixed raw material, obtain elastomeric compound, in the process, Sizing material is played strengthening action by white carbon black 550 and white carbon black 774, and softening agent DOP, RD, MB and WAX are The auxiliary agent of processing characteristics and serviceability for improving sizing material, can increase the plasticity of sizing material, reduces Compound viscosity and mixing time temperature, improve dispersibility and Combination, improve sizing material in sulfidation Hot strength, percentage elongation and wearability, compounding ingredient ZnO-A can regulate the wearability of rubber, bonding Agent SA and 1102 can increase the globality of sizing material, compounding ingredient and binding agent and combine to wearability Improve effect more preferable, mixing after elastomeric compound possess certain hardness, hot strength, elasticity, wear-resisting The mechanical properties such as property;
C sulfidization molding
With vulcanizing press, elastomeric compound is carried out sulfidization molding, obtain rubber wire passing plug semi-finished product, sulfuration Agent S, TT and CZ make to produce between rubber molecule crosslinking in sulfidation, so that the elasticity of rubber, Hardness and hot strength are greatly improved;
D repairs
Rubber wire passing plug semi-finished product are carried out appearance finishing so that it is Glabrous limit;
E post-cure
Use vulcanizer that the rubber wire passing plug semi-finished product after finishing are vulcanized again, allow rubber molecule Continue crosslinking, improve the mechanical property of rubber, increase the stability of rubber, finally give rubber threading Plug finished product.
Embodiment 2, as preparing the another kind of ratio of this rubber wire passing plug raw material, raw material includes According to mass fraction carry out 90 parts of NBR1052 of proportioning, 45 parts of white carbon black N550,25 parts of white carbon black N774, 5 parts of softening agent DOP, 1.5 parts of softening agent RD, 1.5 parts of softening agent MB, 1 part of softening agent WAX, 6 Part compounding ingredient ZnO-A, 1.8 parts of binding agent SA, 1102,1 part of S of 2 parts of binding agents, 2 parts of vulcanizing agents TT, 2 parts of vulcanizing agent CZ, use the raw material of mentioned component to sequentially pass through mixing, sulfidization molding, finishing And after post-cure, obtain rubber wire passing plug finished product.
Embodiment 3, as preparing the another kind of ratio of this rubber wire passing plug raw material, raw material includes According to mass fraction carry out 100 parts of NBR1052 of proportioning, 60 parts of white carbon black N550,40 parts of white carbon black N774, 7 parts of softening agent DOP, 2 parts of softening agent RD, 1.5 parts of softening agent MB, 1 part of softening agent WAX, 3 parts join Mixture ZnO-A, 1 part of binding agent SA, 1102,1.2 parts of S of 2 parts of binding agents, 2 parts of vulcanizing agent TT, 1 Part vulcanizing agent CZ, uses the raw material of mentioned component to sequentially pass through mixing, sulfidization molding, finishing and secondary Rubber wire passing plug finished product is obtained after sulfuration.
Embodiment 4, as preparing the another kind of ratio of this rubber wire passing plug raw material, raw material includes According to mass fraction carry out 110 parts of NBR1052 of proportioning, 50 parts of white carbon black N550,20 parts of white carbon black N774, 4 parts of softening agent DOP, 2 parts of softening agent RD, 2 parts of softening agent MB, 0.8 part of softening agent WAX, 4 parts join Mixture ZnO-A, 2 parts of binding agent SA, 1102,1 part of S of 4 parts of binding agents, 2.5 parts of vulcanizing agent TT, 3 Part vulcanizing agent CZ, uses the raw material of mentioned component to sequentially pass through mixing, sulfidization molding, finishing and secondary Rubber wire passing plug finished product is obtained after sulfuration.
By to the component of rubber wire passing plug raw material and the improvement of proportioning thereof, improving rubber in the present invention Processing characteristics in wire passing plug production process and the mechanical property such as the elasticity of finished product, wearability, tensile property Can, it is not only convenient for processing, and produces the rubber wire passing plug that obtains and enable to electric wire and facilitate penetration of it Through wires hole, the elastomeric material around through wires hole weares and teares without material substantially, and resilience is good, through wires hole Being fixed by electric wire tight, rubber wire passing plug is preferable to the sealing property of through wires hole both sides, it is possible to anti- Only oil, water and dust pass through, and have well for the electric wire within through wires hole and other related elements Protective effect.

Claims (8)

1. a rubber wire passing plug, the through wires hole that this wire passing plug is provided through in the axial direction, its Feature exists: the raw material preparing this wire passing plug includes carrying out 90-110 part rubber of proportioning according to mass fraction NBR1052,40-60 part white carbon black N550,20-40 part white carbon black N774,3-7 part softening agent DOP, 1-2.5 Part softening agent RD, 1-2.5 part softening agent MB, 0.5-1.2 part softening agent WAX, 3-7 part compounding ingredient ZnO-A, 1-2.5 part binding agent SA, 2-4 part binding agent 1102,0.5-1.2 part S, 1-2.5 part sulfur Agent TT, 1-3 part vulcanizing agent CZ.
A kind of rubber wire passing plug the most according to claim 1, it is characterised in that: described preparation The raw material of this wire passing plug includes carrying out 100 parts of NBR1052 of proportioning, 50 parts of white carbon blacks according to mass fraction N550,30 parts of white carbon black N774,5 parts of softening agent DOP, 1.5 parts of softening agent RD, 1.5 parts of softening agents MB, 0.8 part of softening agent WAX, 5 parts of compounding ingredient ZnO-A, 1.5 parts of binding agent SA, 3 parts of binding agents 1102,0.8 part of S, 1.5 parts of vulcanizing agent TT, 2 parts of vulcanizing agent CZ.
A kind of rubber wire passing plug the most according to claim 1, it is characterised in that: described preparation The raw material of this wire passing plug includes carrying out 90 parts of NBR1052 of proportioning, 45 parts of white carbon blacks according to mass fraction N550,25 parts of white carbon black N774,5 parts of softening agent DOP, 1.5 parts of softening agent RD, 1.5 parts of softening agents MB, 1 part of softening agent WAX, 6 parts of compounding ingredient ZnO-A, 1.8 parts of binding agent SA, 2 parts of binding agents 1102, 1 part of S, 2 parts of vulcanizing agent TT, 2 parts of vulcanizing agent CZ.
A kind of rubber wire passing plug the most according to claim 1, it is characterised in that: described preparation The raw material of this wire passing plug includes carrying out 100 parts of NBR1052 of proportioning, 60 parts of white carbon blacks according to mass fraction N550,40 parts of white carbon black N774,7 parts of softening agent DOP, 2 parts of softening agent RD, 1.5 parts of softening agent MB, 1 part of softening agent WAX, 3 parts of compounding ingredient ZnO-A, 1 part of binding agent SA, 2 parts of binding agents 1102,1.2 Part S, 2 parts of vulcanizing agent TT, 1 part of vulcanizing agent CZ.
A kind of rubber wire passing plug the most according to claim 1, it is characterised in that: described preparation The raw material of this wire passing plug includes carrying out 110 parts of NBR1052 of proportioning, 50 parts of white carbon blacks according to mass fraction N550,20 parts of white carbon black N774,4 parts of softening agent DOP, 2 parts of softening agent RD, 2 parts of softening agent MB, 0.8 part of softening agent WAX, 4 parts of compounding ingredient ZnO-A, 2 parts of binding agent SA, 4 parts of binding agents 1102,1 Part S, 2.5 parts of vulcanizing agent TT, 3 parts of vulcanizing agent CZ.
6. the preparation technology of the rubber wire passing plug of proportioning raw materials as claimed in claim 1, it is characterised in that The step of described preparation technology is as follows:
A raw material prepares
Each for described raw material constituent according to mass fraction proportioning and uniformly being mixed, the raw material obtained is standby With;
B is mixing
Raw material is carried out mixing, obtains elastomeric compound;
C sulfidization molding
Elastomeric compound is carried out sulfidization molding, obtains rubber wire passing plug semi-finished product;
D repairs
Rubber wire passing plug semi-finished product are carried out appearance finishing so that it is Glabrous limit;
E post-cure
Rubber wire passing plug semi-finished product after finishing are vulcanized again, finally gives rubber wire passing plug Product.
The preparation technology of rubber wire passing plug the most according to claim 6, it is characterised in that: described Step A in, before raw material carries out proportioning, rubber NBR1052 is plasticated.
The preparation technology of rubber wire passing plug the most according to claim 6, it is characterised in that: described Step C in, the equipment used by sulfidization molding is vulcanizing press.
CN201610239066.5A 2016-04-18 2016-04-18 Rubber threading plug and preparation process thereof Pending CN105801932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610239066.5A CN105801932A (en) 2016-04-18 2016-04-18 Rubber threading plug and preparation process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610239066.5A CN105801932A (en) 2016-04-18 2016-04-18 Rubber threading plug and preparation process thereof

Publications (1)

Publication Number Publication Date
CN105801932A true CN105801932A (en) 2016-07-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610239066.5A Pending CN105801932A (en) 2016-04-18 2016-04-18 Rubber threading plug and preparation process thereof

Country Status (1)

Country Link
CN (1) CN105801932A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442889A (en) * 2008-12-13 2009-05-27 东方电气集团东方汽轮机有限公司 Electrical wire wall-passing device
CN101597391A (en) * 2009-06-12 2009-12-09 浙江荣康密封件有限公司 A kind of highly-abrasion-resistant butadiene-acrylonitrile-rubber vulcanized rubber and preparation method thereof
CN201757964U (en) * 2010-07-22 2011-03-09 深圳市洲明科技股份有限公司 Waterproofing threading plug for LED display screen
CN105189634A (en) * 2013-03-05 2015-12-23 大金工业株式会社 Acrylonitrile butadiene rubber composition, acrylonitrile butadiene rubber molded article, and method for producing same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442889A (en) * 2008-12-13 2009-05-27 东方电气集团东方汽轮机有限公司 Electrical wire wall-passing device
CN101597391A (en) * 2009-06-12 2009-12-09 浙江荣康密封件有限公司 A kind of highly-abrasion-resistant butadiene-acrylonitrile-rubber vulcanized rubber and preparation method thereof
CN201757964U (en) * 2010-07-22 2011-03-09 深圳市洲明科技股份有限公司 Waterproofing threading plug for LED display screen
CN105189634A (en) * 2013-03-05 2015-12-23 大金工业株式会社 Acrylonitrile butadiene rubber composition, acrylonitrile butadiene rubber molded article, and method for producing same

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Application publication date: 20160727