Tungsten Core Shelling Armor-Piercing Projectiles of China

The tungsten alloy bullets produced in China are called tungsten core shelling armor-piercing projectiles. In the 1960s, the United States and other Western countries introduced rotary-stabilized tungsten-shelled armor-piercing projectiles on small-caliber guns at the same time. Their excellent armor-piercing performance caused great concern in the socialist countries. In order to improve the ability of infantry weapons to deal with thin steel armor and effectively prevent air defense at close range, China has applied the rotary stable shelling technology used on the shells to the bullets, and developed the first generation of tungsten core shelling armor-piercing projectiles.

The warhead of the tungsten core shelling armor-piercing projectile adopts the shelling principle and the new structure and new material of high-density tungsten alloy. It has the characteristics of high initial velocity, low ballistic extension, short flight time, high hit accuracy and great penetrating power. To deal with the fast moving target, the density of the elastic core section is large, and the hard metal core or the tungsten carbide elastic core is broken in the whole process of penetration. The tungsten alloy elastic core has good expandability and is better with splash-type piercing. The secondary penetrating property is more obvious for the piercing effect of the composite armor of the large angle, sandwich or multi-layer structure. The platform for the bullet is the high-altitude machine gun or the rapid-fire gun.

In 1984, China continued to improve the structure and improve the performance on the basis of the fixed 12.7mm tungsten core shelling armor-piercing projectile, and developed a 14.5mm tungsten core shelling and armored combustion tracer.

The active domestic DGJ02 type 14.5mm tungsten core shelling armored combustion tracer was developed in 1994. The design was completed in 2002. The mass of the projectile is 45g, the initial speed is 1250m/s, and the angle of 50° at 1000m can penetrate 20mm thick. Homogeneous alloy steel plate.

Since the size of the bullet and its cylindrical diameter are much smaller than the shells, the structure of the shelled shell is inevitably different from that of the shelled shell. In particular, the guiding method of the shell of the shelling gun is different from that of the shell. The piercing element of the elastic core is made of a tungsten alloy material. Since the density of the tungsten alloy is 18.5 g/cm3, which is 2.3 times the density of the steel (7.8 g/cm3), the density of the core is large, which is advantageous for improving the flight time, the ability to store speed, and the ability to penetrate the steel plate. The shape of the elastic core is designed to reduce the optimal shape of the air resistance during flight. The 14.5mm tungsten core-shelled armor-piercing projectile is the combination of a cylinder and an arc with a conical head. There is a cylindrical hole at the bottom of the bullet, and a tracer is installed in the hole. The bottom end of the bottom of the bullet is engraved with two parallel grooves. When it is launched, it is inserted into the support surface of the bottom by inertial force to drive the elastic core to rotate reliably, so that the flight of the bullet is stable.

DGJ02 type 14.5mm tungsten core shelling armor-piercing projectiles have reached the international advanced level with its excellent comprehensive performance. The armor performance is much higher than that of Russia's 14.5mm hard core bomb, and the internationally equipped 20mm caliber hard core and tungsten. The best level of heart-shelling armor-piercing projectiles is equivalent and has an international leading level. In particular, the bomb can penetrate 20 mm / 50 ° of homogeneous alloy steel plate at 1000 meters, that is, the general infantry armored vehicles, helicopters, etc.

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