FRANGIBLE BULLET AND ITS MANUFACTURING METHOD
First Claim
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1. A frangible bullet comprising pressed particles of a copper-based metal powder, the particles having been pressed including an organic lubricant, the particles having a density of more than about 6.9 g/cm3 and having been subsequently treated in an oxidizing medium.
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Abstract
This invention describes a frangible bullet made from particles of a copper-based metal powder with the aid of an organic lubricant, which have been pressed so that the pressed particles have a density of more than 6.9 g/cm3, where the composition has been treated with thermal oxidation.
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Citations
13 Claims
- 1. A frangible bullet comprising pressed particles of a copper-based metal powder, the particles having been pressed including an organic lubricant, the particles having a density of more than about 6.9 g/cm3 and having been subsequently treated in an oxidizing medium.
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8. A method for producing a frangible bullet, wherein it comprises the steps of:
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providing a copper-based metal powder; pressing the particles with the aid of an organic lubricant up to a density of more than 6.9 g/cm3 thereby favoring the cold welding of the particles; and subjecting the pressed particles to an oxidative heat treatment thereby allowing physical bonds between the polymer chain with oxygen as well as the growth of the oxidised layer of the pressed particles. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification