Hard-particle powder for sintered body and sintered body

Details Hard-particle powder for sintered body and sintered body Hard-particle powder for sintered body and sintered body

2011-01-11

2011-01-11

King, Roy (Department: 1793)

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

C075S246000

Reexamination Certificate

active

07867315

ABSTRACT:
The invention provides a hard-particle powder for sintered body, which contains, by mass %, 2% to 3.5% of Si, 6% to 10% of Cr, 20% to 35% of Mo, 0.01% to 0.5% of REM, and the remainder being Co and unavoidable impurities. The invention further provides a sintered body obtained through a mixing step of mixing the above-mentioned hard-particle powder for sintered body with a pure iron powder and a graphite powder to obtain a powder mixture, a forming step of compacting the powder mixture to obtain a compact, and a sintering step of sintering the compact. The hard-particle powder according to the invention has the effect of giving a sintered body having improved wear resistance without substantially impairing powder characteristics and sintering characteristics. Additionally, the sintered body according to the invention has the effect of having excellent wear resistance.

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Chinese Search Report of Jul. 7, 2010 corresponding to Application No. 200810189217.6.

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