Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1993-07-27
1994-03-15
Andrews, Melvyn J.
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
75403, 75581, 75687, C21B 1314
Patent
active
052942449
ABSTRACT:
A method of recovering an aluminum alloy and a stainless steel alloy from an air bag inflator 10 that has aluminum alloy parts, including an aluminum alloy housing 12 and non-aluminum alloy parts, including a non-aluminum gas filter 18. The non-aluminum parts have a higher melting temperature than the aluminum alloy parts of the air bag inflator 10. The method comprises heating the air bag inflator 10 in the range of the melting temperature of aluminum and then recovering the aluminum alloy which is not contaminated with the material of the higher melting temperature parts. After the aluminum alloy has melted from the air bag inflator 10, the non-aluminum parts are heated to a higher temperature to melt any stainless steel alloy from the non-aluminum parts. The stainless steel alloy is recovered as a high purity stainless steel alloy end product.
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Allerton, III Hugh G.
Bal Dennis S.
Coburn James L.
Thames Bernie M.
Andrews Melvyn J.
TRW Vehicle Safety Systems Inc.
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