CN207351295U - A kind of bulletproof halmet - Google Patents
A kind of bulletproof halmet Download PDFInfo
- Publication number
- CN207351295U CN207351295U CN201621186085.8U CN201621186085U CN207351295U CN 207351295 U CN207351295 U CN 207351295U CN 201621186085 U CN201621186085 U CN 201621186085U CN 207351295 U CN207351295 U CN 207351295U
- Authority
- CN
- China
- Prior art keywords
- laminated cloth
- helmet
- molecular weight
- weight polyethylene
- bulletproof halmet
- 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.)
- Active
Links
- 239000004744 fabric Substances 0.000 claims abstract description 93
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000000835 fiber Substances 0.000 claims abstract description 37
- 239000004698 Polyethylene Substances 0.000 claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 claims abstract description 22
- -1 polyethylene Polymers 0.000 claims abstract description 21
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 55
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 55
- 238000007731 hot pressing Methods 0.000 claims description 9
- 239000004425 Makrolon Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 16
- 238000002360 preparation method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 239000011265 semifinished product Substances 0.000 description 9
- 238000003825 pressing Methods 0.000 description 8
- 229920005992 thermoplastic resin Polymers 0.000 description 8
- 238000003475 lamination Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000013467 fragmentation Methods 0.000 description 4
- 238000006062 fragmentation reaction Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000007592 spray painting technique Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000009966 trimming Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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
Abstract
A kind of bulletproof halmet is the utility model is related to, its helmet shell is compressing by the laminated cloth circle sheet material of multilayer superhigh molecular weight polyethylene fibers or film.
Description
This application claims submitted to the China State Intellectual Property Office, Application No. on the 16th of August in 2016
The priority of the Chinese invention patent application of the 201610678263.7th, entitled " a kind of bulletproof halmet and preparation method thereof ".
Technical field
It the utility model is related to shellproof technical field, and in particular to a kind of bulletproof halmet.
Background technology
Currently, traditional bulletproof halmet, which often uses, is produced by below technique preparation：1st, first by polyethylene (PE) or aramid fiber without
Latitude cloth is cut according to setting shape, wherein mostly using petal and fan blade wheel shape (see Fig. 1)；2 and then cut-parts are laminated,
The angle for staggering certain between every layer of cut-parts is placed；3rd, the bulletproof halmet blank (see Fig. 2) being finally laid to is used into mold hot
It is molded.
But this traditional fiber laid fabric cuts out the entirety for destroying unidirectional sheet material to a certain extent with being laid with
Property, continuity and orthohormbic structure, so as to influence shock wave diffusion velocity, reduce the ballistic performance of bulletproof halmet.
On the other hand, traditional ultra-high molecular weight polyethylene (UHMWPE) fiber laid fabric is usually and presses UHMWPE fibers
It is embedded into according to unidirectional array in thermoplastic resin matrix and manufactured, i.e.,：By more UHMWPE fibers by it is uniform, parallel, very
It is straight to wait warping technology marshalling in one direction, bond each fiber with thermoplastic resin and unidirectional cloth is made, by multilayer unidirectional cloth
Intersect successively by 0 degree or 90 degree and lay at least two layers, bonding each layer unidirectional cloth hot pressing with thermoplastic resin obtains laminated cloth.
This UHMWPE fibers prepare unidirectional cloth, unidirectional cloth prepares laminated cloth and laminated cloth is pressed into during bulletproof halmet
It all employ thermoplastic resin, and that group can be caused to launch is shellproof into UHMWPE for the presence of a large amount of thermoplastic resins in bulletproof halmet
During the helmet, the damage at position of being hit by a bullet can extend rapidly, and large area layering and obvious cracking occur between UHMWPE laminated cloth layers,
Bump height is larger in the helmet caused by bullet impact.
During preparing unidirectional cloth by UHMWPE fibers, glue and the complex process of UHMWPE fibers bonding, reduce
The production efficiency of unidirectional cloth.And every UHMWPE is filament, every UHMWPE fiber is independent individual, therefore each fiber
Warping technology it is complicated, production cost is high, and easily cause in the technical process such as warping, gluing fracture of wire, distortion, tangled up and knotted,
The defects of uneven is arranged, these defects all will hinder laminated cloth to carry out effective energy transmission to external force, and then reduce without latitude
The performance such as the intensity of cloth, shellproof.
Therefore, studying the helmet prepared on the premise of laminated cloth globality, continuity and orthogonality is not destroyed will very
It is significant, it is contemplated that the ballistic performance of the helmet can be increased substantially.
On the other hand, bulletproof halmet lighting, and bulletproof halmet field are made on the premise of suitable ballistic performance is kept
The target pursued.
Utility model content
On the one hand the application provides a kind of bulletproof halmet, the helmet shell of the helmet can be by multilayer ultra-high molecular weight polyethylene
The laminated cloth circle sheet material of fiber or film is compressing.
In one embodiment, if laminated cloth is the laminated cloth of ultra-high molecular weight polyethylene film, the face of laminated cloth
Density can be 60-120g/m2；If laminated cloth is the laminated cloth of superhigh molecular weight polyethylene fibers, the surface density of laminated cloth
Can be 120-160g/m2。
In another embodiment, if laminated cloth is the laminated cloth of ultra-high molecular weight polyethylene film, the face of the helmet is close
Degree can be 4.0-8.0Kg/m2, the preferably helmet can be by 50-90 layers of ultra-high molecular weight polyethylene film laminated cloth circle sheet material
It is compressing；If laminated cloth is the laminated cloth of superhigh molecular weight polyethylene fibers, the surface density of the helmet can be 6.0-
9.0Kg/m2, the preferably helmet can be compressing by 60-70 layers of superhigh molecular weight polyethylene fibers laminated cloth circle sheet material.
In yet another embodiment, the fracture strength of ultra-high molecular weight polyethylene film can be more than 27g/D, stretch modulus
1600g/D can be more than, elongation at break can be less than 2.5%；And the fracture strength of superhigh molecular weight polyethylene fibers can be with
More than 37g/D, stretch modulus can be more than 1200g/D, and elongation at break can be less than 3.5%.
In one embodiment, the laminated cloth can be put by more than 2 ultra-high molecular weight polyethylene film layer lay-ups,
And obtained with connection modes such as splicing, hot pressing or binding yarns；Preferably, these polyethylene films can be laminated with non-zero angle
Lay.In a preferred embodiment, the laminated cloth can press right-angled intersection by 4 ultra-high molecular weight polyethylene films,
Such as double horizontal double vertical stratum lay-ups are put and are obtained with connection modes such as splicing, hot pressing or binding yarns.
In another embodiment, the bulletproof halmet can also include makrolon reinforcement interior lining panel.
Present invention also provides a kind of preparation method of bulletproof halmet, it may include steps of：
(1) cut-parts：The laminated cloth of superhigh molecular weight polyethylene fibers or film is cut into circular sheet material and lamination；
(2) prepared by helmet blank：The laminated cloth circle sheet material that step (1) obtains is stacked in mould and is cold-pressed, is obtained to the end
Helmet blank；
(3) prepared by preformed member：Helmet blank is positioned in preforming tool, is progressively molded helmet blank, and by
The unnecessary material in step trimming blank outer；
(4) prepared by molded part：The preformed member that step (3) obtains is put into molding die, determines the preformed member helmet
Type, takes out after cooling, and helmet semi-finished product are made；And
(5) by helmet semi-finished product through the techniques such as deburring, spray painting, suspension, the finished product helmet；
Master tooling used is in petal, the outer surface of male mould and the inner surface of master tooling wherein in step (2) and (3)
It is all smooth, and in addition to the 70%-90% of the die size used in the die size used in step (3) is step (2), this
Mould used in two steps is identical.
In another embodiment, if laminated cloth is the laminated cloth of ultra-high molecular weight polyethylene film, the face of the helmet is close
Degree can be 4.0-8.0Kg/m2, the preferably helmet can be by 50-90 layers of ultra-high molecular weight polyethylene film laminated cloth circle sheet material
It is compressing；If laminated cloth is the laminated cloth of superhigh molecular weight polyethylene fibers, the surface density of the helmet can be 6.0-
9.0Kg/m2, the preferably helmet can be compressing by 60-70 layers of superhigh molecular weight polyethylene fibers laminated cloth circle sheet material.
In yet another embodiment, the fracture strength of ultra-high molecular weight polyethylene film can be more than 27g/D, stretch modulus
1600g/D can be more than, elongation at break can be less than 2.5%；And the fracture strength of superhigh molecular weight polyethylene fibers can be with
More than 37g/D, stretch modulus can be more than 1200g/D, and elongation at break can be less than 3.5%.
Brief description of the drawings
Fig. 1 be the prior art bulletproof halmet preparation method in laminated cloth cut-parts fan blade shape schematic diagram, from a left side
To the right side be 0 ° successively, 15 °, 30 °, 45 ° of wind impeller structure.
Fig. 2 be the prior art bulletproof halmet preparation method in helmet blank schematic diagram.
Fig. 3 is the schematic diagram according to the UHMWPE laminated cloth circle sheet materials of one embodiment of the application.
Fig. 4 is prepared and the male mould used in preformed member step of preparation process according to the helmet blank of the embodiment of the present application
It is (left with the schematic diagram of master tooling：Male mould left view；It is right：Master tooling front view).
Fig. 5 is the schematic diagram of the male mould and master tooling according to used in the molded part step of preparation process of the embodiment of the present application
It is (left：Male mould；It is right：Master tooling).
Embodiment
The helmet shell of bulletproof halmet can be justified by the laminated cloth of multilayer superhigh molecular weight polyethylene fibers or film in the application
Shape sheet material is compressing.As used herein, " circular sheet material " or " disk " refer to rounded sheet material, its integral surface does not include appointing
What destroys the trace of its disc integrality, the gap being such as cut out.
This that laminated cloth is directly cut into disk, not only simplify in prepared by traditional bulletproof halmet needs to cut out laminated cloth
Petal or fan blade wheel shape troublesome operation is cut into, the globality of laminated cloth material and continuous has more crucially been effectively ensured
Property.And latter point is extremely important for bulletproof halmet, because when bullet injects bulletproof halmet with very high momentum, in the helmet
Discontinuity point can all cause the to be hit by a bullet damage at position cannot be rapidly spread to surrounding, it is possible to penetrating the helmet and with next life
Critically ill danger.For the prior art in order to reduce these discontinuity poinies of fan blade wheel shape or petal laminated cloth to the greatest extent, generally requiring will be every
The certain angle that staggers between layer cut-parts carries out lamination, but this stacked system is not only very cumbersome, but also simply to a certain extent
Reduce the adverse effect of discontinuity point.The application is solved to essence by being molded to laminated cloth wafer stack direct pressing
The problem of the shellproof technical staff of this puzzlement for many years.
In a preferred embodiment, UHMWPE films laminated cloth can be thin by more than 2 UHMWPE in the application
Film layer lay-up is put, and is obtained with connection modes such as splicing, hot pressing or binding yarns.Preferably, can by these polyethylene films with
Non-zero angle stacking is laid.As described in the background section, this laminated cloth directly obtained using UHMWPE films rather than
The laminated cloth obtained using the unidirectional cloth as made from UHMWPE fibers and thermoplastic resin more effectively ensure that UHMWPE materials
Globality and continuity, and avoid asking for the ballistic performance because influencing finished product bulletproof halmet there are thermoplastic resin
Topic.Certainly, the application is equally applicable to be pressed into bulletproof halmet using UHMWPE fiber laid fabrics.
If using UHMWPE film laminated cloths, the surface density of obtained bulletproof halmet can be 4.0-8.0Kg/m2,
It is preferred that 6.0Kg/m2.With reference to the surface density and consider final ballistic performance (such as 1.1g simulation fragmentation V50 values), can incite somebody to action
50-90 layers of UHMWPE film laminated cloth circle sheet materials are compressing.Specifically, according to GA 293-2012 standards, the table of the helmet
Area is certain：The surface area of the naked helmet of medium size is 0.125m2, the surface area of the naked helmet of large size is 0.13m2.Therefore, the face of the helmet
Density is certainly the smaller the better, and the weight of such helmet can be relatively lighter.But in order to ensure that ballistic performance and the helmet should have
Certain rigidity, the helmet must also have constant weight.The application in the helmet is prepared using UHMWPE film laminated cloths, pass through by
Surface density is controlled in 4.0-8.0Kg/m2Between, on the premise of ballistic performance is ensured, the successfully lighting so that the helmet is tried one's best.Example
Such as, the weight of the large size helmet just about 750g, the weight of the medium size helmet just about 780g, and 1.1g simulations fragmentation V50 values can reach
650m/s。
If using UHMWPE fiber laid fabrics, the surface density of obtained bulletproof halmet can be 6.0-9.0Kg/m2,
It is preferred that 8.0Kg/m2, with reference also to the surface density and consider final ballistic performance, can be by 60-70 layers of UHMWPE fiber laids
Cloth circle sheet material is compressing.
In one embodiment, the fracture strength of UHMWPE films can be more than 27g/D, and stretch modulus can be more than
1600g/D, elongation at break can be less than 2.5%.In one embodiment, the fracture strength of UHMWPE fibers can be more than
37g/D, stretch modulus can be more than 1200g/D, and elongation at break can be less than 3.5%.
The surface density of UHMWPE films used herein can be 60-120g/m2, and the surface density of UHMWPE fibers can be with
For 120-160g/m2, the bulletproof halmet that the light material of this kind of high strength and modulus thus to prepare is in holding bulletproof ability
On the premise of, weight mitigates significantly.The preparation process of the application is equally applicable to light material aramid fiber.
The applicant, which studies, to be found：According to stress wave propagation mechanism, stress wave is in the small fiber of camber relative to curved
Spend in big fiber and propagate soon, and stress wave transmission is faster, transmission energy is more in the unit interval, and energy-absorbing effect is better, therefore
The unidirectional cloth ballistic performance of orthohormbic structure is preferable.In the preferred embodiment of the application, UHMWPE film laminated cloths can
To press right-angled intersection by 4 UHMWPE films, such as double horizontal double vertical stratum lay-ups are put and with connections such as splicing, hot pressing or binding yarns
Mode obtains.The orthohormbic structure of this unidirectional cloth can farthest ensure bulletproof effect.As for splicing, hot pressing or binding yarn
Etc. connection mode, this is the conventional connection mode of this area, and those skilled in the art can make choice according to actual needs.
The Bulletproof helmet shell of the application can be circular by the laminated cloth of multilayer superhigh molecular weight polyethylene fibers or film
Sheet material is compressing.Laminated cloth is directly cut into circular sheet material with cut-off knife, for example, the disk of diameter 550mm as shown in Figure 3,
Disk is directly subjected to lamination again, it is compressing.
It is such as above-mentioned, laminated cloth is directly cut into circular sheet material and direct lamination, not only avoid and be cut into wind in the prior art
Impeller shape or the complicated shape such as petal and needing staggers every layer of cut-parts the troublesome operation of certain angle placement, prior
It is the globality, continuity and orthohormbic structure for not destroying laminated cloth, so as to not interfere with the diffusion velocity of shock wave, effectively
It ensure that the ballistic performance of the helmet.
But when the laminated cloth person that do not cut into fan blade is petal, since sphere area is minimum, inevitably
Produce more folds.For this reason, the application is effectively eliminated by handling 3 specific process steps of laminated cloth circle sheet stack
Buckling problems：
I. prepared by helmet blank：Laminated cloth circle sheet material is stacked in mould and is cold-pressed, obtains helmet blank；
II. prepared by preformed member：Helmet blank is positioned in preforming tool, is progressively molded helmet blank, and by
The unnecessary material in step trimming blank outer；
III. prepared by molded part：Preformed member is put into molding die, the preformed member helmet is shaped, is taken after cooling
Go out, helmet semi-finished product are made；
Master tooling used is in petal in wherein step I and II, and the outer surface of male mould and the inner surface of master tooling are equal
It is smooth, and in addition to the 70%-90% of the die size used in the die size used in step II is step I, this two
Mould used in step is identical；Mould used can be that the prior art prepares conventional mould used in bulletproof halmet in step III
Tool, such as the shaper in national standard.
Specifically, the preforming male mould used in step II can be small than the size of the blank male mould used in step I
60-80mm, preforming master tooling size ratio blank master tooling size can compare base with small 30-50mm, the height of preforming male mould
Material male mould height can lack 50-65mm.
According to the application embodiment, in step I, laminated cloth circle sheet material is stacked on room temperature and 1-
Under the pressure of 10MPa in petal master tooling (Fig. 4 is referred to, illustrated therein is male model used in the embodiment of the present application
Tool and master tooling) in cold pressing 5-60 seconds, obtain helmet blank.Master mold shown in Fig. 4 has 6 petal openings, but this is
Exemplary, those skilled in the art can adjust petal opening number according to specific needs.
According to the application embodiment, in step II, helmet blank is positioned over preforming tool, and (shape is same
Sample refers to Fig. 4) in, 1-30 points of helmet blank shaping is progressively made at 60-120 DEG C of temperature and the pressure of 1MPa-15MPa
Clock, and progressively trim the unnecessary material in blank outer.Wherein " progressively " represent that the temperature and pressure of the step usually progressively increases
Add, such as temperature can heat up in a linear fashion, and pressure can use staged pressurization (for example to be pressurized to from normal pressure
1MPa, can use the progressively pressuring method of 0.1-0.2-0.3 ... 0.9-1.0MPa).Certainly, pressure can also a direct step
Pressurization is in place.
According to the application embodiment, in step III, the obtained preformed members of step II are put into shaping mould
In tool (referring to Fig. 5, illustrated therein is male mould and master tooling used in the embodiment of the present application), in 110-150 DEG C of temperature
The preformed member helmet is set to shape 5-60 minutes under the pressure of degree and 10MPa-30MPa, and temperature and 10MPa- at 10-40 DEG C
Take out, be made at the top of the helmet to lower edge arc transition, helmet both sides ear after cold moudling 1-30 minutes under the pressure of 30MPa
Lower edge has the helmet semi-finished product of certain altitude gradient before and after place's arc transition and the helmet.
Optionally, the temperature changing process of above-mentioned steps I, II and III can be carried out all in a linear fashion, and pressure change
Process can once carry out or with stepped progress.
In short, by preparing the helmet using petal master tooling in above-mentioned steps I, II and III, especially step I and II
Blank and preformed member, and progressively heat up and pressurize as far as possible in step II, these measures concentrate and ensure that circular sheet material is easy
The elimination of the fold risen.Specifically, the partial folds that the petal master tooling that step I and II is used enables to disk to rise
Petal edge is extruded to as far as possible, so as to be removed by easily shearing.Step I, the three step pressing process of II and III, can be effective
UHMWPE thermoplastic resins are avoided to be deformed upon after being heated because of flowing or displacement.In fact, the prior art generally takes first heat
The step pressing process being cold-pressed after pressure, but since the master tooling of the helmet is substantially spherical, stress is shown at the top of the helmet in pressing process
So be more than helmet periphery, therefore often compactness extent is inadequate on a step compressing helmet periphery, bulletproof effect reduction.The application
Three step pressing process then efficiently solve this drawback of the prior art.
According to the application, in one embodiment, bulletproof halmet can also include makrolon and strengthen interior lining panel.
Present invention also provides a kind of preparation method of bulletproof halmet, it may include steps of：
(1) cut-parts：The laminated cloth of superhigh molecular weight polyethylene fibers or film is cut into circular sheet material and lamination；
(2) prepared by helmet blank：The laminated cloth circle sheet material that step (1) obtains is stacked in mould and is cold-pressed, is obtained to the end
Helmet blank；
(3) prepared by preformed member：Helmet blank is positioned in preforming tool, is progressively molded helmet blank, and by
The unnecessary material in step trimming blank outer；
(4) prepared by molded part：The preformed member that step (3) obtains is put into molding die, determines the preformed member helmet
Type, takes out after cooling, and helmet semi-finished product are made；And
(5) by helmet semi-finished product through the techniques such as deburring, spray painting, suspension, the finished product helmet；
Master tooling used is in petal, the outer surface of male mould and the inner surface of master tooling wherein in step (2) and (3)
It is smooth, and in addition to the 70%-90% of the die size used in the die size used in step (3) is step (2), this
Mould used in two steps is identical；It is normal used in bulletproof halmet can be prepared by the prior art for mould used in step (4)
Scale has, such as the shaper in national standard.
It can be seen that step (2), (3) and (4) actually corresponds respectively to abovementioned steps I, II and III, therefore above in relation to
Step I, the description of II and III is respectively suitable for step (2), (3) and (4).
To more fully understand the application, the application is described further below by embodiment and with reference to respective drawings,
But these embodiments never form the limitation to the application.
Embodiment one
In accordance with the following steps, using the bulletproof halmet of UHMWPE film preparation medium sizes：
(1) cut-parts：4 UHMWPE films are overlapped in a manner of double horizontal double vertical (i.e. 0 °/90 ° angles) first, and at least
The lower surface coating polyaminoester emulsion adhesive of one individual layer, is thus made laminated cloth.The fracture strength of the UHMWPE films is about
For 30g/D, stretch modulus is about 1700g/D, and elongation at break is about 2.2%, and the surface density of gained laminated cloth is about 100g/
m2。
Above-mentioned UHMWPE laminated cloths are cut into the disk of a diameter of 550mm, and by 65 such direct laminations of disk.
(2) prepared by helmet blank：The UHMWPE laminated cloths wafer stack that step (1) obtains is placed in such as figure for 20 DEG C in room temperature
In petal master tooling shown in 4, pressure is once increased to about 4MPa, and at this pressure with male mould to wafer stack into
The row cold pressing of 15 seconds, obtains helmet blank.
(3) prepared by preformed member：Helmet blank is placed in preforming tool, and (shape is as shown in figure 4, size is blank mold
80%) in, temperature linearity is increased to 80 DEG C by temperature control system and pressure once increases to and progressively makes helmet base under 11MPa
Material shaping 8 minutes, and the unnecessary material in blank outer is progressively trimmed in the process, preformed member is made.
(4) prepared by molded part：The preformed member that step (3) obtains is put into molding die (as shown in Figure 5), passes through temperature
Temperature linearity is increased to 130 DEG C and be once pressurized to pressure under 23MPa by control system makes the preformed member helmet shape 20 minutes,
Temperature is reduced to 20 DEG C afterwards, and continue the cold moudling under the pressure of 23MPa and take out after ten minutes, thus obtain helmet top
Lower edge has the helmet of certain altitude gradient before and after arc transition and the helmet at lower edge arc transition, helmet both sides ear in portion
Semi-finished product.
(5) by helmet semi-finished product through the techniques such as deburring, spray painting, suspension, the finished product helmet.
The thus obtained helmet is naked to weigh about 780g, and surface density is about 6.0Kg/m2, and 1.1g simulation fragmentation V50 test values
For 650m/s.
Embodiment two
In accordance with the following steps, using the bulletproof halmet of UHMWPE film preparation large sizes：
(1) cut-parts：4 UHMWPE films are overlapped in a manner of double horizontal double vertical (i.e. 0 °/90 ° angles) first, and at least
The lower surface coating KratonD1161 adhesives of one individual layer, are thus made laminated cloth.The fracture strength of the UHMWPE films is about
For 27g/D, stretch modulus is about 1600g/D, and elongation at break is about 2.3%, and the surface density of gained laminated cloth is about 80g/m2。
Above-mentioned UHMWPE laminated cloths are cut into the disk of a diameter of 550mm, and by 87 such direct laminations of disk.
(2) prepared by helmet blank：The UHMWPE laminated cloths wafer stack that step (1) obtains is placed in such as figure for 20 DEG C in room temperature
In petal master tooling shown in 4, pressure is once increased to about 10MPa, and at this pressure with male mould to wafer stack
The cold pressing of 15 seconds is carried out, obtains helmet blank.
(3) prepared by preformed member：Helmet blank is placed in preforming tool, and (shape is as shown in figure 4, size is blank mold
80%) in, temperature linearity is increased to 110 DEG C by temperature control system, and by pressure in a step-wise manner (i.e. in 2 minutes
3MPa is pressurized to from normal pressure, 6MPa was pressurized to from 3MPa from the 3rd minute to the 6th minute, from the 7th minute to the 8th minute from 6MPa
Be pressurized to 7MPa) increase to 7MPa during helmet blank is molded 8 minutes, and progressively trim blank in the process
The unnecessary material in outer, is made preformed member.
(4) prepared by molded part：The preformed member that step (3) obtains is put into molding die (as shown in Figure 5), passes through temperature
Temperature linearity is increased to 125 DEG C and be once pressurized to pressure under 20MPa by control system makes the preformed member helmet shape 40 minutes,
Make that temperature is reduced to 16 DEG C and pressure is reduced to cold moudling under the pressure of 18MPa and takes out after twenty minutes afterwards, thus to the end
Lower edge has certain altitude gradient before and after arc transition and the helmet at lower edge arc transition, helmet both sides ear at the top of helmet
Helmet semi-finished product.
The thus obtained helmet is naked to weigh about 750g, and surface density is about 6.0Kg/m2, and 1.1g simulation fragmentation V50 test values
For 650m/s.
Following table lists the helmet of the application compared with the performance of the prior art helmet.It can be seen that the helmet of the application
While weight is mitigated, the bulletproof effect of higher is still realized.
| Model | Naked helmet weight | Surface density | V50 values |
| The new large size helmet | 750g | 6.0Kg/m2 | 650m/s |
| The new medium size helmet | 780g | 6.0Kg/m2 | 650m/s |
| Traditional large size helmet | 1150g | 9.2Kg/m2 | 630m/s |
| Traditional medium size helmet | 1200g | 9.2Kg/m2 | 630m/s |
Claims (9)
1. a kind of bulletproof halmet, including helmet shell, it is characterised in that the helmet shell is by multilayer superhigh molecular weight polyethylene fibers or thin
The laminated cloth circle sheet material of film is compressing.
2. bulletproof halmet according to claim 1, it is characterised in that if the laminated cloth is ultra-high molecular weight polyethylene film
Laminated cloth, the surface density of laminated cloth is 60-120g/m2；If the laminated cloth is the nothing of superhigh molecular weight polyethylene fibers
Latitude cloth, the surface density of laminated cloth is 120-160g/m2。
3. bulletproof halmet according to claim 1, it is characterised in that if the laminated cloth is ultra-high molecular weight polyethylene film
Laminated cloth, the surface density of the helmet is 4.0-8.0Kg/m2；If the laminated cloth is superhigh molecular weight polyethylene fibers
Laminated cloth, the surface density of the helmet is 6.0-9.0Kg/m2。
4. bulletproof halmet according to claim 1, it is characterised in that if the laminated cloth is ultra-high molecular weight polyethylene film
Laminated cloth, the helmet is compressing by 50-90 layers of ultra-high molecular weight polyethylene film laminated cloth circle sheet material；It is if described
Laminated cloth is the laminated cloth of superhigh molecular weight polyethylene fibers, the helmet by 60-70 layers of superhigh molecular weight polyethylene fibers without
Latitude cloth circle sheet material is compressing.
5. bulletproof halmet according to claim 1, it is characterised in that the fracture strength of ultra-high molecular weight polyethylene film is more than
27g/D, stretch modulus are more than 1600g/D, and elongation at break is less than 2.5%；The fracture strength of superhigh molecular weight polyethylene fibers
More than 37g/D, stretch modulus is more than 1200g/D, and elongation at break is less than 4.0%.
6. according to the bulletproof halmet of any one of claim 1 to 5, it is characterised in that the laminated cloth is by more than 2 superelevation point
Sub- weight northylen film is laminated with non-zero angle and laid, and is obtained with splicing, hot pressing or binding yarn connection mode.
7. bulletproof halmet according to claim 6, it is characterised in that the laminated cloth is pressed by 4 ultra-high molecular weight polyethylene films
Right-angled intersection stacking is laid and is obtained with splicing, hot pressing or binding yarn connection mode.
8. bulletproof halmet according to claim 7, it is characterised in that the laminated cloth is double by 4 ultra-high molecular weight polyethylene films
Horizontal double vertical stratum lay-ups are put and are obtained with splicing, hot pressing or binding yarn connection mode.
9. according to the bulletproof halmet of any one of claim 1 to 5, it is characterised in that the bulletproof halmet further includes makrolon
Strengthen interior lining panel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610678263 | 2016-08-16 | ||
| CN2016106782637 | 2016-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207351295U true CN207351295U (en) | 2018-05-11 |
Family
ID=60093730
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621186085.8U Active CN207351295U (en) | 2016-08-16 | 2016-10-27 | A kind of bulletproof halmet |
| CN201610974476.4A Active CN107289816B (en) | 2016-08-16 | 2016-10-27 | Bulletproof helmet and preparation method thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610974476.4A Active CN107289816B (en) | 2016-08-16 | 2016-10-27 | Bulletproof helmet and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN207351295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114619683A (en) * | 2022-01-26 | 2022-06-14 | 湖北爱骑士体育用品有限公司 | Safety helmet forming process and safety helmet |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253844B (en) * | 2018-02-01 | 2020-03-27 | 军事科学院系统工程研究院军需工程技术研究所 | Automatic manufacturing method of bulletproof helmet |
| CN111113945A (en) * | 2019-12-17 | 2020-05-08 | 湖南中泰特种装备有限责任公司 | Method for manufacturing PE helmet |
| CN113618819A (en) * | 2021-07-23 | 2021-11-09 | 江西联创电声有限公司 | Cutting template of helmet body and method for preparing helmet body |
| CN113895053B (en) * | 2021-10-14 | 2024-03-08 | 西安康本材料有限公司 | Multi-curved-surface bulletproof helmet forming method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502005004897D1 (en) * | 2005-02-04 | 2008-09-11 | Egon Busch | METHOD FOR PRODUCING A BALLISTIC PROTECTIVE TANK |
| US20110023202A1 (en) * | 2009-08-03 | 2011-02-03 | E.I. Du Pont De Nemours And Company | Method For Making a Composite Laminate |
| CN102528998A (en) * | 2011-12-16 | 2012-07-04 | 宁波荣溢化纤科技有限公司 | Preparation method of ultra high molecular weight polyethylene bulletproof helmet |
| US20140250555A1 (en) * | 2013-03-05 | 2014-09-11 | Richard A. Carlson | Ballistic material with structural stays |
| CN205439455U (en) * | 2013-06-20 | 2016-08-10 | 郑州中远防务材料有限公司 | One -way cloth, no latitude cloth and do not have fabric article of latitude |
-
2016
- 2016-10-27 CN CN201621186085.8U patent/CN207351295U/en active Active
- 2016-10-27 CN CN201610974476.4A patent/CN107289816B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114619683A (en) * | 2022-01-26 | 2022-06-14 | 湖北爱骑士体育用品有限公司 | Safety helmet forming process and safety helmet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107289816A (en) | 2017-10-24 |
| CN107289816B (en) | 2023-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207351295U (en) | A kind of bulletproof halmet | |
| CN206556513U (en) | A kind of bulletproof halmet | |
| TWI490104B (en) | Method for fabricating fiber-reinforced composite material molded product and fiber-reinforced composite material molded product | |
| JP5429599B2 (en) | Curved reinforced fiber laminate, preform, and method for producing fiber reinforced resin composite material | |
| US5252160A (en) | Method of manufacturing a metal/composite spinner cone | |
| US8313602B2 (en) | Method of producing light weight protective helmets for military and other uses | |
| US8303761B2 (en) | Method of manufacturing a curved element made of composite material | |
| CN109334164B (en) | A kind of solidification/forming/heat treatment integral preparation method of carbon fiber metal laminate curved-surface piece | |
| KR100831311B1 (en) | Method for reinforcement manufacturing a composite sabot as using the resin-injection vartm after stitching | |
| JP2010527836A (en) | Molded composite stringer and method for making molded composite stringer | |
| US10994501B2 (en) | Method for molding hollow vehicle part, hollow vehicle part and automobile | |
| CN111256536B (en) | Penetration cutting wire laying reinforced plane integral breaking type frangible cover and preparation method thereof | |
| RU2010143596A (en) | GASOTURBINE ENGINE BLADE FOR AIRCRAFT AND METHOD FOR ITS MANUFACTURE | |
| CN107225773A (en) | Method for assembling the composite construction strengthened | |
| CN112356541A (en) | Composite bulletproof flashboard and preparation method thereof | |
| JP6988812B2 (en) | A method for manufacturing a fiber-reinforced plastic using a prepreg laminate and a prepreg laminate. | |
| US5149251A (en) | Metal/composite spinner cone | |
| JP5751415B2 (en) | Manufacturing method of blade for gas turbine engine | |
| CN105881922A (en) | Novel high-impacting-resistance type unmanned aerial vehicle airframe structure | |
| CN108801055B (en) | Non-metal bulletproof helmet capable of reducing non-penetrating damage and manufacturing method thereof | |
| US7695662B2 (en) | Method for producing resin structure | |
| CN115847866A (en) | Nonmetal bulletproof helmet and preparation device and preparation method thereof | |
| CN112428630A (en) | Bulletproof helmet body and preparation method thereof | |
| CN103660304B (en) | Thermoplastic gasket in individual protection helmet and manufacturing method of thermoplastic gasket | |
| CN112644100A (en) | Large-curvature honeycomb interlayer composite material structure and integrated forming method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A bulletproof helmet Effective date of registration: 20210126 Granted publication date: 20180511 Pledgee: Baotou Branch of Bank of China Ltd. Pledgor: BAOTOU NORTH JIARUI DEFENSE TECHNOLOGY Co.,Ltd. Registration number: Y2021150000005 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220119 Granted publication date: 20180511 Pledgee: Baotou Branch of Bank of China Ltd. Pledgor: BAOTOU NORTH JIARUI DEFENSE TECHNOLOGY Co.,Ltd. Registration number: Y2021150000005 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A bulletproof helmet Effective date of registration: 20220120 Granted publication date: 20180511 Pledgee: Baotou Branch of Bank of China Ltd. Pledgor: BAOTOU NORTH JIARUI DEFENSE TECHNOLOGY Co.,Ltd. Registration number: Y2022150000005 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230111 Granted publication date: 20180511 Pledgee: Baotou Branch of Bank of China Ltd. Pledgor: BAOTOU NORTH JIARUI DEFENSE TECHNOLOGY Co.,Ltd. Registration number: Y2022150000005 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A bulletproof helmet Effective date of registration: 20230111 Granted publication date: 20180511 Pledgee: Baotou Branch of Bank of China Ltd. Pledgor: BAOTOU NORTH JIARUI DEFENSE TECHNOLOGY Co.,Ltd. Registration number: Y2023150000008 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20180511 Pledgee: Baotou Branch of Bank of China Ltd. Pledgor: BAOTOU NORTH JIARUI DEFENSE TECHNOLOGY Co.,Ltd. Registration number: Y2023150000008 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A bulletproof helmet Granted publication date: 20180511 Pledgee: Baotou Branch of Bank of China Ltd. Pledgor: BAOTOU NORTH JIARUI DEFENSE TECHNOLOGY Co.,Ltd. Registration number: Y2024150000005 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |