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friable metal bullet, lead-free friable metal bullet, its manufacturing method and lead-free cartridge
friable metal bullet, lead-free friable metal bullet, its manufacturing method and lead-free cartridge
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机译:易碎金属弹,无铅易碎金属弹,其制造方法和无铅弹药筒
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摘要
A frangible metal bullet, a method for making it, and ammunition made therefrom. The frangible metal bullet is formed from a mixture of metal particles and metal or metalloid binder forming material which is compacted into the desired shape, heated to a temperature above that needed to form at least one intermetallic compound but below the temperature of joining of the metal particles by sintering and below the temperature of formation of substantial amounts of a ductile alloy of the metal of the particles and the metal or metalloid binder forming material and then cooled. Such bullets have sufficient strength to maintain their integrity during firing but disintegrate into powder on impact and can be formulated to be lead-free.
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