Y-shaped fragile tungsten-based MIM special feed

Abstract

The invention discloses a Y-shaped fragile tungsten-based MIM special feed which comprises a Y-shaped fragile tungsten-based material and a wax-based binder. The Y-shaped fragile tungsten-based material comprises 85-90 parts of tungsten powder, 1-5 parts of tungsten particles, 0.5-3 parts of nickel powder, 0.5-3 parts of iron powder, 0.1-2 parts of cobalt powder, 0.3-1 part of molybdenum powder and 1-6 parts of alumina powder, and the wax-based binder comprises 40-45 parts of Brazilian wax, 12-20 parts of sliced paraffin, 20-35 parts of HDPE, 3-6 parts of PP and 1-3 parts of SA. The adopted H-shaped fragile tungsten-based MIM special feed overcomes the characteristic of soft texture of a lead material, ensures the penetrability, and avoids the constraint of international regulations; compared with a traditional tungsten-nickel-iron alloy, the adopted H-shaped fragile tungsten-based MIM special feed has fragility on the premise of keeping the hardness of the tungsten-based alloy; according to the wax-based binder system MIM special feed, few preparation processes are needed, process control is simple, and mass production can be easily realized; the fluidity is good, and injection molding is facilitated; and polluting tail gas is not generated, and the technological requirement for environment-friendly treatment can be easily met.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to Y-shaped fragile tungsten-based MIM special feeding material. Background technique [0002] The military put forward the following indicators for a new type of shotgun under research: 1. Self-injury protection for one’s own fighters, that is, when the bullet is fired at a muzzle velocity of 370-400 m / s for a distance of 5 meters, the projectile hits the reinforced concrete wall. Broken can not rebound. Two, the enemy must have lethality, that is, when the bullet is fired at a distance of 50 meters with a muzzle velocity of 370-400 m / s, the projectile will also penetrate a 25mm pine board. 3. The number of projectiles loaded in each bullet shall not be less than 20. 4. The projectile must be spherical, and the size must be within ±0.05mm. [0003] Defects and deficiencies of the prior art: [0004] 1. Now there are bullets that do not bounce back, and the material is lea...

AI Technical Summary

Problems solved by technology

4. The projectile must be spherical, and the size must be within ±0.05mm

[0005] 2. The existing projectiles based on tungsten-nickel-iron have no problem in satisfying the penetration. However, after the projectile hits the reinforced concrete wall within 5 meters, the projectile will not be broken and will bounce back, so it cannot be used against one's own side. Warrior's Self-Injury Protection

But there is no such feed material suitable for metal powder injection molding production process on the market