Tungsten-tin composite material for green ammunition

Details Tungsten-tin composite material for green ammunition Tungsten-tin composite material for green ammunition

C - Chemistry, Metallurgy

06

B

C06B 45/00 (2006.01) B22F 1/00 (2006.01) B22F 3/02 (2006.01) C01G 41/00 (2006.01) C22C 1/04 (2006.01) C22C 13/00 (2006.01) C22C 27/04 (2006.01) F42B 12/74 (2006.01)

Patent

CA 2452779

A tungsten-tin composite for green (lead-free) ammunition is provided wherein the composite is made with a spheroidized tungsten powder and has mechanical properties similar to those of lead. The composite may be fully densified at pressures less than about 250 MPa and is suitable for pressing complex projectile shapes to near net size.

On présente un matériau composite de tungstène et d'étain destiné à fabriquer des munitions sans danger pour l'environnement (sans plomb); le matériau composite est obtenu à l'aide d'une poudre de tungstène sphéroïdisé, et ses propriétés mécaniques sont similaires à celles du plomb. Le matériau composite peut être entièrement densifié à des pressions inférieures à environ 250 Mpa, et il permet de mouler sous pression des projectiles aux formes complexes jusqu'à une taille presque nette.

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