CN107144173A - A kind of preparation method of bulletproof halmet - Google Patents
A kind of preparation method of bulletproof halmet Download PDFInfo
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- CN107144173A CN107144173A CN201710333131.5A CN201710333131A CN107144173A CN 107144173 A CN107144173 A CN 107144173A CN 201710333131 A CN201710333131 A CN 201710333131A CN 107144173 A CN107144173 A CN 107144173A
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- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000007493 shaping process Methods 0.000 claims abstract description 12
- 229920001971 elastomer Polymers 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 claims abstract description 3
- 238000005507 spraying Methods 0.000 claims description 28
- 239000004760 aramid Substances 0.000 claims description 21
- 229920003235 aromatic polyamide Polymers 0.000 claims description 21
- 239000003973 paint Substances 0.000 claims description 21
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 15
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- 230000001070 adhesive effect Effects 0.000 claims description 11
- 239000002390 adhesive tape Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 9
- 235000013877 carbamide Nutrition 0.000 claims description 8
- 239000004202 carbamide Substances 0.000 claims description 8
- 238000010422 painting Methods 0.000 claims description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 7
- 239000004922 lacquer Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000012948 isocyanate Substances 0.000 claims description 5
- 239000003550 marker Substances 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 claims description 5
- 150000003077 polyols Chemical class 0.000 claims description 5
- -1 isocyanic acid Ester Chemical class 0.000 claims description 4
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 4
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- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 claims 1
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 239000006261 foam material Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
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- 230000009916 joint effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
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- 238000002156 mixing Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000010428 oil painting Methods 0.000 description 1
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- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H1/00—Personal protection gear
- F41H1/04—Protection helmets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
- B32B2262/0269—Aromatic polyamide fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2571/00—Protective equipment
- B32B2571/02—Protective equipment defensive, e.g. armour plates or anti-ballistic clothing
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Helmets And Other Head Coverings (AREA)
- Laminated Bodies (AREA)
Abstract
This patent application discloses a kind of preparation method of bulletproof halmet, mainly comprise the step of：Blanking, paste type, precompressed, cutting edge, shaping, deburring, drilling, glutinous edge-sealing rubber strip, surface treatment, inner surface spray painting, upper hat lining, outer surface spray painting, inspection and packaging, this method makes Bulletproof helmet shell using aramid fiber II/ III, helmet ballistic performance is added, the quality of the helmet is alleviated.
Description
Technical field
The invention belongs to shellproof safeguard field of material technology, it is related to a kind of preparation method of bulletproof halmet.
Background technology
In recent years, the attack of terrorism constantly occurs in various countries, and various countries personnel increase the research and development power to safety protection field
Degree.In China with the development of the social economy, the raising of people's security protection consciousness, security protection equipment Requirement is increasing,
Country also clearly indicates among " 12 " planning and increases support dynamics to public safety field.In order to effectively prevent terror
The generation of event, it is necessary to strong strike is carried out to serious crime behavior.For the particularity of these pernicious terrorist incidents, it is necessary to
Strengthen the protection of the protection, particularly head to our public security cadres and police and Security Personnel, to avoid in the task of execution to him
Produce injures and deaths, cause more ill effect；Soldier needs also exist for wearing bulletproof halmet when battlefield is fought, to protect head
Do not injured by bullet and fragmentation.The bulletproof halmet of in the market is metal and nonmetallic including two classes：Although metal bulletproof halmet
It is cheap, but helmet shell is heavier, wears uncomfortable；The nonmetal bulletproof helmet is mainly made by aramid II, although aramid II system
The bulletproof halmet of work solves the shortcoming of metal helmet, but because the modulus of elasticity and tensile strength of aramid II fiber are limited, makes
The attack effect of the helmet be not under given conditions it is fine, the helmet hit depression it is larger, it is impossible to meet standard requirement；Conventional
Molding mode just first has to an aramid fiber cloth and is taped against in cavity plate, rotation overlap joint stone, is so accomplished by tablet more than helmet helmet shell
Size, i.e., will have part tablet to can guarantee that helmet shell size outside mould, just and be easy to hold in the palm mould.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of preparation method of bulletproof halmet, this method includes successively
Following steps：
Raw material type：Aramid II
Species：The type of TWARON fibers 2000 of Di Ren companies, line density 1680DTEX
Surface density：400-420g/m2
Presoak (gluing) gel content：11-15%, surface density：440-470g/m2；
Aramid fiber III
Species：Heterocycle aramid fiber the STARAMID F-368H-340,200 ± 3%Tex of line density of Zhong Lan morning twilight company
Breadth：1.31m
Surface density：345 ± 5%g/m2
Thread count：8*8 (root/cm)
Fabric intensity：Warp-wise >=17KN/5cm, broadwise >=20KN/5cm；
(1) blanking：Marker map is made on model, automatic grinding cutting device is used in the setting-out on aramid fabric according to marker map
By above-mentioned drawn line clipping, by gained tablet number sorting, totally 16 layers, it is aramid fiber that the discharge order of wherein marker map, which is No. 1-8,
II, No. 8-16 is aramid fiber III；
(2) paste type：The tablet overlap joint sorted in step (1) is close, and the whip stitch between every layer staggers, and rear a piece of rises
Begin to be not more than 2-6mm with preceding a piece of ending lap width, use operation temperature to enter for 180-280 DEG C of heat gun after overlap joint is good
Row is pasted, and is opened from bottom to top after pasting, and takes out product；
(3) precompressed：The product for pasting shaping in step (2) is put into progress precompressed in hydraulic press tentatively to shape, hydraulic press
Pressure be set as 10~20MPa, temperature is set as 55~105 DEG C, and squeeze time is 1~8min；
(4) cutting edge：Unnecessary part is gone to using being cut out with saw cutter by line, helmet body is obtained；
(5) it is molded：The helmet body that step (4) is obtained, which is put into hydraulic press shaping mould, to be pressed, and pressing process is adopted
With punch-pin under, cavity plate is in upper mode, wherein pressing parameter：130~210 ㎏ of pressure/cm2, temperature：Upper mould 145~170
DEG C, lower 145~170 DEG C of mould, total time 45min；
(6) deburring：Band saw cutter is used to cut out deflashing the helmet body after above-mentioned shaping, cutting is neat；
(7) drill：With mold in above-mentioned helmet external side mark bore position, using drilling of electric hand drill, hole a diameter of 4~
6mm, hole position：Center is provided with two, totally six before helmet body each side two, helmet body；
(8) edge-sealing rubber strip is glued：With hairbrush by adhesive tape inner surface gluing, gluing is uniform, and glue consumption is 1~2g/cm2, place
It is bonded after 15~20min, adhesive tape selects ginseng in neoprene, the adhesive to have curing agent, and adhesive and curing agent
Volume ratio be 100：1；
(9) it is surface-treated：Remove the adhesive that helmet body surface face is retained in by stick, and other pollutants；
(10) inner surface paints：Edge-sealing rubber strip inner port edge is with spray paint at interface surfaces in helmet body, dope width
0.5~1.0mm, coating selection two-component spraying carbamide paint, it is made up of two components, and wherein component A is divided into polyalcohol group
Point, B component is isocyanate component, component A and B component by volume 1：1 proportioning, spraying parameter：(component A)：(B groups
Point)=1：1 proportioning, spraying temperature is 50-80 DEG C, spray pressure 1000-1500psi, spraying number of turns 2-5 circles, revolution 4-7r/
Min, component A pressure 120-170psi, B component pressure 120-170psi；
(11) hat lining on：The inboard middle and both sides of the helmet are stained with after fishing without hook, are stained with hat lining pad, cap pad perimeter sealing jail
Gu, edge sealing width cannot be less than 3mm；
(12) outer surface is painted：Coating used is two-component spraying carbamide paint, and the coating is made up of two components, its
Middle component A is divided into polyol component, and B component is isocyanate component, component A and B component by volume 1：1 proportioning, spraying temperature
Spend for 50-80 DEG C, spray pressure 1000-1500psi, the spraying number of turns is enclosed for 2-5, revolution 4-7r/min, component A material pressure 120-
170psi, B component material pressure 120-170psi, paint thickness must not exceed 0.6mm, and helmet external surface lacquer painting granulation particle diameter is
1mm；
(13) examine：Examine helmet body appearance and size and thickness；
(14) pack；
Beneficial effects of the present invention
Each layer overlap joint of helmet body is close, firmly not loose；Helmet is seen symmetrical in vitro, and helmet body is full；Hat lining structure positioning
Accurately, it can adjust position adjustment flexible, button solution is convenient；Bulletproof helmet shell is made using aramid fiber III, helmet bullet-proof is added
Can, alleviate the quality of the helmet.Mitigate the weight of the helmet, improve the ballistic performance of the helmet, the helmet (the shellproof grade of equivalent weight
For two grades of the Ministry of Public Security) depression is reduced within 25mm by 30mm, and some depressions only have 7,8mm.
The mode for being molded compacting is different, and aramid fabric consumption is few, and helmet helmet casing forming is using punch-pin in lower cavity die in upper side
Formula, the conventional helmet uses cavity plate under, and punch-pin suppresses helmet helmet shell in upper mode；It is convex for aramid fabric consumption
Mould is few more many in upper compacting helmet shell side formula aramid fabric consumption in lower punch than cavity plate in upper pressing mode in lower cavity die, this
Sample will substantially reduce aramid fabric consumption.
For the ballistic performance of aramid fiber bulletproof halmet, depending on the shaping pressing process of the helmet.Aramid fiber bulletproof halmet it is anti-
The quality of elastic energy is by the performance and coating phenolic resin joint effect of aramid fabric, and moulding process plays decisive role, in head
In helmet forming process, pressure, temperature, time govern the ballistic performance of the helmet jointly, be this we formulated the specific time,
Temperature, pressure, make the helmet helmet shell suppressed under this technique have compact structure, a stability, the spy such as environmental suitability
Point.
Brief description of the drawings
Fig. 1 is invented technology flow chart.
Embodiment
With reference to specific embodiment, the present invention is further elaborated, but the present invention is not limited to following examples.Institute
It is conventional method unless otherwise instructed to state method.The raw material can be obtained from open commercial sources unless otherwise instructed.
Embodiment 1
The technological process for making bulletproof halmet is as follows：
1st, blanking：
Model setting-out is pressed on aramid fabric with pencil as requested, totally ten six kinds of specifications, then use automatic grinding cutting device are pressed
Line clipping.No. 1-8 is aramid II, and No. 9-16 is aramid fiber III, finally using band saw cutter to No. 1-16 progress cutting deburring.
Technical standard：
(1) typesetting blanking is carried out as requested.
(2) tablet is subjected to number of plies mark by regulation requirement.
Technological requirement：
(1) selvedge should be neat using side when spreading cloth, and cutting order should be defined by first cutting out small pieces.
(2) it should be prevented feed strictly by line clipping, occur the not neat phenomenon of secant when cutting out.
(3) each after having cut out carries out number of plies mark by technical requirements and combines.
The proportional numbers that aramid II and aramid fiber III are constituted in helmet helmet case fibre is 1:1；
The fibre structure is that superficial layer is aramid fiber III, and the inside layer is aramid II, the high-modulus of the aramid fiber III made full use of,
The performance of high-tensile, also utilizes the cost performance high-performance of aramid II high-quality.
Aramid II and aramid fiber III and phenolic resin all have good associativity, using phenolic resin by aramid II and aramid fiber
III is fixed-type, has given full play to the performance of fiber.
2nd, paste type：
Technique:Pasted on mold tooling using heat gun.
Technical standard：
(1) technological parameter：Heat gun operation temperature is 190 DEG C.
(2) ascending totally 16 layers of tablet, sequentially superposition is pasted.
(3) every layer should be carried out in order in overlap joint, and overlap joint stretches drawing appropriateness, all around accurate positioning.
(4) each layer overlap joint of helmet body pasted is close, firmly not loose.
(5) take after pasting during helmet and carefully to be opened from bottom to top with instrument, unavailable hand is directly taken off inside-out,
Greatly can not precompressed in order to avoid causing helmet to be made a slip of the tongue.
Technological requirement：
(1) carry out, forbidden reverse by hierarchical sequence during every layer of every oblique cut grafting.
(2) whip stitch between every layer should stagger, and prevent the generation through seam, rear a piece of starting will be with preceding a piece of ending
To connecting, or overlap joint is not more than 3mm.
(3) each layer bonding is firm, smoother, must not have fold, loose delamination.
(4) forbid glue and fabric is burned.
(5) the helmet body pasted will handle with care, cover lucifuge, keep away wet preservation, prevent helmet body to be scattered；Prevent water and dust from falling
Enter.
3rd, precompressed:
Technique:The product for pasting shaping is put into progress precompressed in hydraulic press tentatively to shape.
Technical standard:
Technological parameter：Pressure 17MPa；65 ± 2 DEG C of temperature；Time 1min.
Technological requirement：
Helmet body should be compacted, and fold, decortication, foaming phenomena should not occur.
4th, cutting edge:
Technique:Product after precompressed is cut out with saw cutter by line and goes to unnecessary part.
Technical standard：
Helmet body trimming after first pressing, otch is smooth, and neat in edge is straight, and camber line is smooth.
Technological requirement：
(1) trimming should be straight, and edge is without skewed, breach, empty side and the few meat phenomenon of scarce layer.
(2) helmet is seen symmetrical in vitro, and helmet body is full.
5th, it is molded:
Technique:
Pre-molding is put into hydraulic press shaping mould and suppressed by cutting edge, outer surface gluing and the product that has dried
Shaping.
Technical standard：
Technological parameter:190 ㎏ of pressure/cm2, 155 ± 2 DEG C of mould, lower 158 ± 2 DEG C of mould, total time 45min in temperature；Technique
It is required that：
(1) helmet body should be compacted, and electricity consumption wooden mallet, which beats helmet body surface face, should the clear and melodious solid sound, fold should not be occurred, be risen
Steep phenomenon.
(2) note avoiding falling when picking and placeing molded article out of mould touching helmet shell, in order to avoid cause helmet body size distortion.
6th, deburring:
Technique:Band saw cutter is used to cut out deflashing the product after shaping.
Technological requirement：Cutting is neat.(must not have many material, lack material phenomenon).
7th, drill:
Technique:With mold bore position is marked in helmet external side marking pen.Drilled with electric hand drill by technical requirements.Technology
Standard：
(1) φ 5.5mm holes are opened with electric hand drill in helmet body bottom.
(2) hole position：Preceding center two, each side two, totally six.
Technological requirement：
By locating holes, must not the cutting of skewed, burr it is clean, left and right hole is symmetrical.
8th, edge-sealing rubber strip is glued：
Technique：At helmet mouthful with sand paper to cohering adhesive tape and adhesive tape carries out grinding process, with 8 or No. 9 two-sided paintings of oil painting brush
Glue, it is desirable to which gluing is uniform, (tack-free to be advisable) is bonded after placing 15 minutes.
Adhesive tape material：Neoprene.
Adhesive：The adhesive of neoprene 309.Adhesive and curing agent ratio are 100:1.
Technological parameter：Glue consumption 1g/cm2, reach initial viscous force coheres time 15min.
Adhesive tape outward appearance should be smooth, and straight line is natural and tripping with arc transition.
Technological requirement：
(1) at the helmet mouthful with sand paper to cohering adhesive tape and adhesive tape inner surface carries out grinding process, double spread.
(2) surface is without scuffing, and flash, overlap should be modified totally.
(3) bonding is without cracking, empty viscous, fold, skewed, empty side and rough and uneven in surface phenomenon.
(4) adhesive tape is Nian Jie with helmet shell firmly, and straight arc transition is natural, width is consistent.
9th, it is surface-treated：
The adhesive that surface is retained in by viscose top, and other pollutants are removed with dry wipe；Avoid with naked hand, dirty hand
Set and the contact of socks cloth are painted face, it is ensured that coated surface oil-free, water, silicone oil and other coating clouds etc. adhere to, and accomplish any surface finish, in order to avoid
Influence spray painting effect, is blown clean with the attachment dirt of high-pressure blast small of the stock helmet shell surfaces externally and internally.
10th, inner surface paints:
Two-component spraying carbamide paint SPUA.It is made up of two components, and wherein component A is divided into polyol component, B component
For isocyanate component, component A and B component by volume 1：1 proportioning.Through special poly-
Urea spraying equipment is constructed, and it quickly solidifies to form high intensity, elastomeric coating.Width：5-10mm, paint film thickness
Degree：Not leak in helmet body surface color as standard.
Technological parameter：(component A)：(B component)=1：1 proportioning, spraying temperature is 70 DEG C, spray pressure 1400psi, spraying
The number of turns 4 is enclosed, revolution 4r/min, A material pressure 150psi, B material pressure 150psi.
Spraying technology requirement：
(1) helmet shell is blown clean before spraying with the attachment dirt of high-pressure blast small of the stock helmet shell surfaces externally and internally.
(2) ensure that the component pipeline material of AB two pressure is consistent.
(3) ensure that helmet body lacquer painting must not uniformly there are the phenomenons such as holiday stream paint stomata when spraying.
(4) coat of paint thickness must not exceed 0.6mm.
(5) surface lacquer painting wants flat smooth in helmet body.
11st, upper hat lining：
Technical standard：
(1) structure positioning is accurate, can adjust position adjustment flexibly, and button solution is convenient.
(2) hat lining ribbon broken belt prevents wool yarn using hot melt.
(3) side bonds foam material cushion before and after the helmet.
(4) the inboard middle and both sides of the helmet are stained with after fishing without hook, are stained with hat lining pad.
(5) trip bolt is locked during hat lining on.
(6) adjusting ring adjusting knob is on rear side of the helmet.
Install and examine it to reach following standard after hat lining：
(1) drawing eye-splice is stretched with hand to thread off.
(2) sewing position should not have more than 1mm the end of a thread and wire jumper, burst at the seams, get rid of the phenomenons such as set, anti-line.
(3) trip bolt is twisted with screwdriver, should not there is loosening and disorderly button phenomenon.
(4) sealing of cap pad perimeter is firm, and edge sealing width cannot be less than 3mm；Infantees must not have damaged, stain.12nd, appearance
Paint in face
Two-component spraying carbamide paint SPUA.It is made up of two components, and wherein component A is divided into polyol component, B component
For isocyanate component, component A and B component by volume 1：1 proportioning.Through special poly-
Urea spraying equipment is constructed, and it quickly solidifies to form high intensity, elastomeric coating.Width：5-10mm, paint film thickness
Degree：Not leak in helmet body surface color as standard.
Technological parameter：(component A)：(B component)=1：1 proportioning, spraying temperature is 70 DEG C, spray pressure 1400psi, spraying
The number of turns 4 is enclosed, revolution 4r/min, A material pressure 150psi, B material pressure 150psi.
Spraying technology requirement：
(1) helmet shell is blown clean before spraying with the attachment dirt of high-pressure blast small of the stock helmet shell surfaces externally and internally.
(2) ensure that the component pipeline material of AB two pressure is consistent.
(3) ensure that helmet body lacquer painting must not uniformly there are the phenomenons such as holiday stream paint stomata when spraying.
(4) coat of paint thickness must not exceed 0.6mm.
(5) surface lacquer painting wants flat smooth in helmet body.
(6) the rough grain of helmet external surface lacquer painting is that particle wants uniform in size consistent, must not there is smooth surface and stream paint phenomenon.
(7) outer surface spraying polyurethane sub-gloss varnish.
13rd, examine：
The helmet body made by above-mentioned steps：According to corresponding standard detection helmet sizes, helmet body appearance and size and thickness
Should be as defined in product drawing in the margin of tolerance.
In helmet body outer surface should smooth, smooth, indivedual pleat depths cannot be greater than 0.5mm.
The lamination of helmet body is internal to be not allow for bubble, and outer surface respective diameters are less than 5mm, and depth is no more than the bubble of two layers of cloth
Allow to reprocess.
Medium size finished weight (cover containing helmet) answers≤1400g；Large size finished weight (cover containing helmet) answers≤1500g
14th, pack：
Single top helmet is wrapped with copy paper, is together placed in together with work certificate, products instruction and moistureproof silica gel bag
In polyethylene plastic bag, packed through heat-sealing machine sealing.The packaging of good seal should have waterproof, protection against the tide, air tight performance to want
Ask；Every five helmet one, which is piled up, to be laterally put into internal package box；Outer packing is pricked using polypropylene plastics strap along groined type direction
Tightly, it is desirable to beat just, firm, elastic appropriateness；Reinforced packing should increase bag polypropylene plastics one layer of cloth of establishment outside carton.
Embodiment 2
The attack result such as following table of bulletproof halmet described in the embodiment 1 being made by mixing using aramid II and aramid fiber III：
Two grades of the Ministry of Public Security, 51 formula 7.62mm pistol cartridges (lead for retractable pencil)
| Sequence number | Attack position | Bullet speed (m/s) | Wear no | It is recessed (mm) |
| 1 | It is anterior | 454.143 | It is anti- | 24.8 |
| 2 | Left part | 453.892 | It is anti- | 7.4 |
| 3 | Rear portion | 436.015 | It is anti- | 10.4 |
| 4 | Right part | 439.560 | It is anti- | 7.4 |
| 5 | Top | 444.543 | It is anti- | 8.4 |
The attack result such as following table of the bulletproof halmet made on the market using aramid II：
Two grades of the Ministry of Public Security, 51 formula 7.62mm pistol cartridges (lead for retractable pencil)
| Sequence number | Attack position | Bullet speed (m/s) | Wear no | It is recessed (mm) |
| 1 | It is anterior | 450.143 | It is anti- | 32 |
| 2 | Left part | 453.9 | It is anti- | 20 |
| 3 | Rear portion | 436.0 | It is anti- | 17 |
| 4 | Right part | 439.6 | It is anti- | 18 |
| 5 | Top | 443.235 | It is anti- | 23 |
Data can be seen that depression is obviously reduced from above-mentioned scale, and the size of helmet depression is to weigh helmet ballistic performance
Direct standard, be also weigh helmet quality important indicator because the helmet attack depression it is excessive, two can be caused to human body head
Secondary injury, directly threatens life and health, helmet depression used is to weigh the important symbol of helmet quality.
Claims (7)
1. a kind of preparation method of bulletproof halmet, it is characterised in that this method in turn includes the following steps：
(1) blanking：Marker map is made on model, the setting-out on aramid fabric according to marker map, with automatic grinding cutting device by upper
Drawn line clipping is stated, by gained tablet number sorting, totally 16 layers.
(2) paste type：By tablet overlap joint sort in step (1) closely, the whip stitch between every layer staggers, rear a piece of starting and
Preceding a piece of ending lap width is 2-6mm, uses operation temperature to be pasted for 180-280 DEG C of heat gun after overlap joint is good,
Opened from bottom to top after pasting, take out product；
(3) precompressed：The product for pasting shaping in step (2) is put into progress precompressed in hydraulic press tentatively to shape, the pressure of hydraulic press
Power is set as 10~20MPa, and temperature is set as 55~105 DEG C, and squeeze time is 1~8min；
(4) cutting edge：The redundance for removing product after precompressed using being cut out with saw cutter, obtains helmet body；
(5) it is molded：The helmet body that step (4) is obtained, which is put into hydraulic press shaping mould, to be pressed, and pressing process is using convex
Mould is under, and cavity plate is in upper mode；
(6) deburring：Band saw cutter is used to cut out deflashing the helmet body after above-mentioned shaping, cutting is neat；
(7) drill：With mold in the external side mark bore position of above-mentioned helmet, using drilling of electric hand drill；
(8) edge-sealing rubber strip is glued：With hairbrush by adhesive tape inner surface gluing, gluing is uniform, and glue consumption is 1~2g/cm2, placement 15~
Adhesive is bonded after 20min；
(9) it is surface-treated：Remove the adhesive that helmet body surface face is retained in by stick, and other pollutants；
(10) inner surface paints：Spray paint at interface surfaces in edge-sealing rubber strip inner port edge and helmet body, dope width is 0.5~
1.0mm；
(11) hat lining on：The inboard middle and both sides of the helmet are stained with after fishing without hook, are stained with hat lining pad, and the sealing of cap pad perimeter is firm, envelope
Hem width degree cannot be less than 3mm；
(12) outer surface is painted：Coating used is two-component spraying carbamide paint, and the coating is made up of two components, wherein A
Component is divided into polyol component, and B component is isocyanate component, component A and B component by volume 1：1 matches, and spraying temperature is
50-80 DEG C, spray pressure 1000-1500psi, the spraying number of turns is enclosed for 2-5, revolution 4-7r/min, component A material pressure 120-
170psi, B component material pressure 120-170psi, paint thickness must not exceed 0.6mm, and helmet external surface lacquer painting granulation particle diameter is
1mm；
(13) examine：Examine helmet body appearance and size and thickness；
(14) pack.
2. a kind of preparation method of bulletproof halmet according to claim 1, it is characterised in that discharge in the step (1)
It is aramid II that the discharge order of figure, which is No. 1-8, and No. 8-16 is aramid fiber III.
3. the preparation method of a kind of bulletproof halmet according to claim 1, it is characterised in that suppressed in the step (5)
Technological parameter be：130~210 ㎏ of pressure/cm2, temperature：Upper 145~170 DEG C of mould, lower 145~170 DEG C of mould, total time
45min。
4. the preparation method of a kind of bulletproof halmet according to claim 1, it is characterised in that step (7) mesopore
A diameter of 4~6mm, hole position：Center is provided with two, totally six before helmet body each side two, helmet body.
5. a kind of preparation method of bulletproof halmet according to claim 1, it is characterised in that adhesive tape in the step (8)
From neoprene, ginseng has curing agent in the adhesive, and the volume ratio of adhesive and curing agent is 100：1.
6. a kind of preparation method of bulletproof halmet according to claim 1, it is characterised in that coating in the step (10)
From two-component spraying carbamide paint, it is made up of two components, and wherein component A is divided into polyol component, and B component is isocyanic acid
Ester component, component A and B component by volume 1：1 proportioning.
7. the preparation method of a kind of bulletproof halmet according to claim 6, it is characterised in that the step (10) sprays work
Skill parameter：(component A)：(B component)=1：1 proportioning, spraying temperature is 50-80 DEG C, spray pressure 1000-1500psi, spraying circle
Number 2-5 circles, revolution 4-7r/min, component A pressure 120-170psi, B component pressure 120-170psi.
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| CN108253844A (en) * | 2018-02-01 | 2018-07-06 | 中国人民解放军62023部队 | A kind of bulletproof halmet automated production method |
| CN108327166A (en) * | 2018-02-01 | 2018-07-27 | 中国人民解放军62023部队 | Injection-molding edge mold, molding bound edge production method and the bulletproof halmet of bulletproof halmet |
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| CN114001591A (en) * | 2021-10-22 | 2022-02-01 | 江西长江化工有限责任公司 | Multilayer bulletproof helmet structure and forming method thereof |
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| CN114001591A (en) * | 2021-10-22 | 2022-02-01 | 江西长江化工有限责任公司 | Multilayer bulletproof helmet structure and forming method thereof |
| CN114619601A (en) * | 2021-12-30 | 2022-06-14 | 浙江国泰萧星密封材料股份有限公司 | Preparation method of oil pocket for sealed large-size coupler |
| CN115871319A (en) * | 2022-10-25 | 2023-03-31 | 安徽建马防护用品科技有限公司 | Automatic manufacturing method and equipment for bulletproof plugboard |
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