CN2310306Y

CN2310306Y - Hollow explosive-filling armour-piercing part

Info

Publication number: CN2310306Y
Application number: CN 97240426
Authority: CN
Inventors: 薛小民
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-30
Filing date: 1997-07-30
Publication date: 1999-03-10
Anticipated expiration: 2007-07-30

Abstract

The utility model relates to a liner in which a metallic thin body is arranged. The liner can be in a long tapered hollow explosive-filling armour-piercing part. The metallic thin body can increase jet flowing quality. On the bases, the long tapered liner of a small tapered angle can generate the continuous and stable jet flows of high speed and long length to pierce armours.

Description

A kind of novel hollow powder charge Shaped charge warhead

The utility model belongs to anti-plate armour hollow charge Shaped charge warhead, and the metal superfine body is housed in particularly a kind of cavity liner, and cavity liner can be the hollow charge Shaped charge warhead of long taper.

Hollow charge warhead is the basis that antitank missile, rocket launcher, hollow charge mine break first, and it is mainly had the powder column in taper hole by front end, be loaded on the cone-shaped metal cavity liner in the powder column hole, and housing and fuse are formed.After powder column was detonated by the rear portion, detonation in cavity liner, made a large amount of metal particles under the inner surface avalanche of cavity liner with energy, made cavity liner with the central axis motion (this process claims again to crush or be closed) to cover of the speed of 2000-3000m/s simultaneously.Produce the metal jet that one head speed can reach 7000-9000m/s.Metal jet is subjected to that head section is fast, the slow velocity gradient of rear influences, and what be stretched is not only thin but also long.Because its surge has substantially exceeded the yield strength of armour material, so it can resemble water penetration as the sposh and wears out plate armour.Experiment showed, that length length and the metal jet that does not rupture can pass darker hole on plate armour.

The shape of hollow charge metal liner, material, cone angle, wall thickness, cover bus, bore and powder column dividing plate all can influence the formation of metal jet, and then the broken first of influence.Wherein relevant with the utility model mainly is structure, shape, cone angle and the material of cavity liner.Now the shape with cavity liner mainly contains taper, tubaeform and change cone angle bipyramid cover, and its cone angle fixes between 30-70 ° more.When cone angle was big, its jet diameter was thick, quality is big, but jet length is short, speed is slow, and broken first is worn more shallow deeply.When cone angle hour, its effluxvelocity is fast, length is long, diameter is thin, but because of the internal surface area of its taper is few, the corresponding minimizing of jet quality, jet can't break first continually and steadily once elongating fracture.Experiment showed, one, when the cone angle of now using cavity liner during less than 30 °, will be very few very unstable because of the jet quality, no practical value; Two, angle is 0 ° the very high jet of straight tubular cavity liner energy generation speed, but owing to lacks jet quality, no practical value.Now the material with cavity liner generally adopts the metal that density is big, plasticity is big, velocity of sound is high, uses red copper at present more, uses steel on a small quantity.Use tungsten, uranium, metal that the molybdenum isodensity is very big can form better jet, but that its powder is controlled the cavity liner that gold makes is frangible, can influences the normal formation of jet.

Broken first ability strong and weak generally with the bore powder charge time warhead determine wearing of plate armour is dark.Above data is seen: " terminal effect design ", China Arms Industry publishing house.

The purpose of this utility model provides the strong hollow charge warhead of a kind of broken first ability.

The purpose of this utility model reaches like this; Make the hollow charge warhead of mainly forming, the metal superfine body that accounts for the partly or entirely interior space of cavity liner is housed in its metal liner by housing, powder column, metal liner, fuse.The composition of the utility model metal superfine body can be the simple substance of copper, tungsten, uranium, molybdenum, iron, tin, lead, aluminium, also can be the alloy of above metal; The shape of metal superfine body can be a powder, also can be fiber.Metal superfine body of the present utility model can be a kind of single component of shape, also can be mixed and be formed by some kinds of shapes, composition.Metal superfine body of the present utility model can loosely be piled up in the cover naturally, also can pre-formedly reinstall in the cover.The utility model cavity liner can be that cone angle is less than 30 ° of long tapers that cover body is elongated; It also can be tubular.

Because jet of the present utility model except that the metal particle stream that is formed by the avalanche of cavity liner inner surface, has increased the metal flow that fusion prepackage metal superfine body forms again, compiling of two kinds of metal flows makes the very big of its jet quality change.The result that the jet quality heightens is the long conical liner practicability that enables to produce high-speed jet.Heavy metals such as the utility model utilization prepackage tungsten uranium molybdenum, the density of material of increase jet.In addition, when being wrapped with not molten metallic fiber in the jet, be subjected to the effect of velocity gradient, metallic fiber will be straightened into rope form, and it is to the anti-necking rupture of jet and impact the stable state that keeps jet when armoring, and great role is arranged.

The continual and steady broken first jet that the utility model energy formation speed is fast, quality is big, length is long, density of material is big.It is significant to antitank plate armour.

Below in conjunction with embodiment the utility model is done concrete the introduction.

Accompanying drawing is the organigram of a kind of embodiment of the present utility model

With reference to accompanying drawing, present embodiment is that a kind of cavity liner [5] is long taper, and its cavity liner [5] inner space [9] is equipped with the Shaped charge warhead of metal superfine body [10], [11] in advance.It mainly is made up of housing [1], fuse [3], powder column [4] and cavity liner [5], and front end has blast cap [2].As can be seen, the cavity liner of the long taper of present embodiment [5] is made with steel, and its cover bus [7] is a straight line, and cover cone angle [8] is 23 °.In the inside, inner space [9] of long conical liner [5], loosely is being piled a large amount of copper powders, alloy copper powder [10] and tungsten filament [11].By seeing among the figure, the explosive payload of powder column [4] is bigger.

After present embodiment powder column [4] detonates, under strong detonative action, cavity liner [5] collapses under pressure, the metal flow that the metal flow that is formed by cavity liner inner surface [6] collapse particulate and fusion comminuted steel shot [10], tungsten filament [11] form, to come together in the axis [12] of cavity liner and travel forward, form a branch of tungsten material that is not melted by the copper product and the fritting of fusing and form jet, this beam current mass is big, speed is fast, length is long, form stable, and broken first power is very powerful.

Claims

1, a kind of hollow charge warhead of mainly being made up of housing, powder column, metal liner, fuse is characterized in that: the metal superfine body that accounts for the part or all of space of cavity liner is housed in the metal liner.

2, by the described hollow charge warhead of claim 1, it is characterized in that: the composition of metal superfine body can be the simple substance of copper, tungsten, uranium, molybdenum, iron, tin, lead, aluminium, also can be the alloy of above metal.

3, by the described hollow charge warhead of claim 1, it is characterized in that: the shape of metal superfine body can be a powder, also can be fiber.

4, by the described hollow charge warhead of claim 1, it is characterized in that: the metal superfine body can be a kind of single component of shape, also can be mixed by difform some kinds of compositions and form.

5, by the described hollow charge warhead of claim 1, it is characterized in that; The metal superfine body can loosely be piled up in the cover naturally, also can pre-formedly reinstall in the cover.

6, by the described hollow charge warhead of claim 1, it is characterized in that: cavity liner can be that cone angle is less than 30 ° of long tapers that cover body is elongated.