Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Reexamination Certificate
2003-10-02
2008-11-18
King, Roy (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
C148S698000, C419S049000
Reexamination Certificate
active
07452430
ABSTRACT:
In reforming mechanical characteristics of a precipitation hardening type Al alloy casting, the Al alloy casting is subjected to a high temperature/high pressure treatment, then the pressure is reduced while maintaining the temperature of the Al alloy casting, and subsequently the Al alloy casting is subjected to solution treatment, quenching, and aging in this order. According to this method, mechanical characteristics of the casting can be reformed efficiently and economically and there can be obtained a reformed product of good quality.
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Kofune Shigeo
Manabe Yasuo
Yoneda Makoto
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd).
King Roy
Morillo Janelle
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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