CN1193100A

CN1193100A - Light composite armour plate and processing method therefor

Info

Publication number: CN1193100A
Application number: CN 98100353
Authority: CN
Inventors: 孙露
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-20
Filing date: 1998-01-20
Publication date: 1998-09-16

Abstract

The present invention discloses a light composite bulletproof plate and its making method. It is characterized by that the alloy plate undergone heat treatment and ultrahigh molecular weight polyethylene HB series material are heated, and made into light composite bulletproof plate with various forms at constant temp. and constant pressure. Said invented bulletproof plate possesses the following advantages: it can resist high-grade gunshot and buttlet, such as 79 miniature sub machine gun steel core cartridge or 56-type rifle steel core musket-shot, can keep from rust, and its weight is light, and can be extensively used in various bulletproof articles and various fields, such as armour, bulletproof shield, bulletproof headpiece, bulletproof car and document box, etc..

Description

A kind of lightweight bullet proof composite plating and processing method thereof

The invention belongs to shellproof technical field, particularly a kind of ultra-high molecular weight polyethylene HB series material and alloy material of utilizing made lightweight bulletproof composite template and processing method thereof through heat seal process.

At present, the domestic bullet resistant material that is used for anti-high-level bullet (seven or nine mini-submachine gun steel core bullets or five or six formula rifle steel core bullets) mostly is steel plate, ceramic wafer, alloy sheets etc.These materials are all very heavy, and ricochet easily takes place, and steel plate easily gets rusty, ceramic wafer is easily cracked, and can only bear an attack.Be used for bullet resistant material abroad, except that above-mentioned material, also used some composite plates, but weight all lays particular stress on, and bulletproof effect is poor, and obvious internal injury is arranged.By the template that the superhigh molecular weight polyethylene material hot pressing is made, use morely at home and abroad, but this type of template made by pure polythene material, cost is higher, makes generally to use to be restricted.

The purpose of this invention is to provide a kind of bulletproof ability by force, not ricochet, weight lighter, lower-cost lightweight bulletproof composite template and processing method thereof.

The present invention adopts the thick alloy sheets of 1--4MM, after heat treatment, making Rockwell hardness is the 45--60 degree, (strand is parallel-oriented with 15--50 layer ultra-high molecular weight polyethylene nonwoven again, have high-crystallinity, very high strength) superimposed, through precompressed-→ constant temperature hot pressing-→ cooling, make the template of required form.

The preparation of alloy material: select F as required ₃Shellproof manganese steel plate or 20--40 steel plate or LC4CS extra super duralumin alloy thin plate, after Q-tempering was handled, Rockwell hardness reached the 45--60 degree.Deoil and steep and polishing in the surface.

Polyethylene HB material is prepared: shape as required and ballistic requirements, ultra-high molecular weight polyethylene material nonwoven is cut into some successively, and be superimposed together in order then;

Precompressed: alloy sheets after heat treatment is superimposed with orderly superimposed good HB series material nonwoven, put into the mould that is warming up to 110--120 ℃, in addition the pressure of 10--20 ton repeatedly repeats pressurization, to get rid of between non-woven fabric plate and the gas between nonwoven and the alloy sheets;

Hot constant voltage: pressure is risen to the 200--250 ton, and mold temperature rises to 125--130 ℃, constant temperature, constant voltage 15--25 minute:

Cooling: under constant voltage, mold temperature is reduced to about 60 ℃ gradually, slowly reduce to below 40 ℃, can open mould, take out the moulding armour.

The lightweight bullet proof composite plating of making by above-mentioned technology passes through test, can not only prevent running through of high-level bullet, and can absorb, spread the energy of missile remainder, elastic stored energy is good, almost can be with whole depleted of energy of missile, make the energy of contact human body be reduced to bottom line, reach purpose shellproof, the non-transfixion damage of defence.The lightweight bullet proof composite plating that the present invention makes can be prevented high level bullet, as seven or nine mini-submachine guns, five or six formula rifle steel core bullets.This type of plate of attack can not resemble and ricochet and non-transfixion damage occur other armour.This type of plate weight only is 2/5ths of equal shellproof level steel plate.The lightweight bullet proof composite plating that the present invention makes is assemblied on the soft bullet-resistant garment, with in case high level bullet impact (five or six formulas, Aug. 1st formula rifle steel core bullet), its shellproof mechanism is: the superhard alloy of composite plate is damaged bullet, consumed energy, absorb its remaining energy by compound HB series material again, absorption, diffusion, the elastic stored energy by soft bullet-resistant garment again, and the bullet of breakage captured enemy personnel, whole depleted of energy of bullet like this, the energy that is passed to body is reduced to bottom line.Reached both shellproof, again the purpose of anti-non-transfixion damage.The lightweight bulletproof plate that the present invention makes is applied to various vehicles, makes it to become the bulletproof car of appropriate level, because this type of armour is in light weight, is contained in the car door place, and attaching parts are played the certain protection effect, increases the service life; The street rod boxboard does not increase complete vehicle weight, and the horsepower loading of automobile is not affected, and particularly ballproof cash truck can keep original speed of a motor vehicle in executing the task.This type of plate also can be used for making briefcase, door and window, marine volume private ship etc., makes it to have the ballistic performance of appropriate level.

Description of drawings: Fig. 1 is bulletproof shield sign intention.

Present invention is described in conjunction with Fig. 1:

It is top layer 1 that almag after heat treatment is cut into required form, ultra-high molecular weight polyethylene HB series material is cut into required form, it is nexine 2 and the reverse side that is attached to the superduralumin magnesium alloy plate that the superimposed 15--50 layer of sequence is arranged then, mould is warming up to 110--120 ℃, the composite that combines is put in the shellproof shield mould, depress with 10 tons of pressure, mention mold again, depress, the air in getting rid of material is warming up to mould 125--130 ℃ more again, pressure rises to 200 tons, constant temperature and pressure 15 minutes slowly cools the temperature to 60 ℃, keeps 200 tons of constant voltages during this; Slowly release then, when temperature was reduced to 40 ℃, moulding material was taken out in die sinking, and moulding material is windowed 3, loads onto bulletproof glass 4, just becomes shellproof shield.

Claims

1, a kind of lightweight bullet proof composite plating is characterized in that top layer [1] is the thick alloy sheets of 1--2MM, and nexine [2] is that 15--50 layer ultra-high molecular weight polyethylene nonwoven is superimposed in order, processes through hot pressing.

2, a kind of processing method of lightweight bullet proof composite plating, it is characterized in that with superimposed alloy sheets and ultra-high molecular weight polyethylene nonwoven through precompressed-→ permanent hot pressing-→ cooling finishes.

3, the alloy sheets on a kind of lightweight bullet proof composite plating according to claim 1 top layer after surfaces nitrided processing, is quenched, the hardness after the temper reaches 45--60Rc.

4, according to the processing method of claims 2 described a kind of lightweight bullet proof composite platings, it is characterized in that the pressure 10--20 ton of prepressing procedures, mould temperature is 110--120 ℃, the repeated multiple times precompressed; The pressure of hot constant voltage operation is the 200--250 ton, and mould temperature is 125-130 ℃, and the time is 15--25 minute; The pressure of refrigerating work procedure is the 200--250 ton, and temperature is reduced to about 60 ℃, slowly reduces pressure, to below 40 ℃, can open mould, takes out goods.