Method for producing copper-based material with low thermal...

Details Method for producing copper-based material with low thermal... Method for producing copper-based material with low thermal...

2008-05-27

2008-05-27

King, Roy (Department: 1793)

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

C419S023000, C419S045000, C419S038000, C075S246000, C075S247000

Reexamination Certificate

active

10832247

ABSTRACT:
The invention proposes a copper-based material with low thermal expansion and high thermal conductivity having good machinability and adaptability to nickel plating and also proposes a method for producing the same. The copper-based material is prepared through the steps of: adding 5 to 60% of iron-based alloy power having a certain value in thermal expansion coefficient into a matrix powder of pure copper phase powder and/or a precipitation hardening copper alloy powder; mixing the powders together; compacting the obtained powder mixture into a green compact and sintering it at temperatures of 400 to 600° C.

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