Patent ID: 7396380
Filing Date: 2008-07-08
Classification: B22D,B22F,C22B,C22C,Y02P,Y10T

Abstract:
1. Process for producing a light metal foam body, comprising the steps of: producing a gas-containing metal melt from light metal pressure die cast scrap that has been melted under atmospheric pressure so as to thereby introduce gas into the fluid light metal without blowing gases into the melt or using blowing agents; then bringing the gas-containing metal melt into a mold; allowing the gas-containing metal melt to solidify so as to form a metal foam body in a state in which it is at least temporarily under a reduced surrounding pressure, in which at least parts of the light metal are converted into at least one compound before melting, which emits a gas soluble in the fluid metal in the region of and/or over the melting interval of the same.