Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Reexamination Certificate
2011-08-16
2011-08-16
Yee, Deborah (Department: 1733)
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
C075S239000, C075S240000, C075S241000, C277S541000, C277S653000, C428S547000, C428S570000, C428S618000, C428S681000, C428S682000, C428S683000, C428S684000, C428S685000, C148S325000, C148S326000, C148S906000, C384S912000, C384S913000, C384S902000
Reexamination Certificate
active
07998238
ABSTRACT:
A sintered sliding member comprises a back metal (21a) and a ferrous sintered sliding body (20) which is sintering-bonded to the back metal (21a). The ferrous sintered sliding body (20) has martensite phase having a solid soluble carbon concentration of 0.15 to 0.5 wt % and contains carbide in a content of 5 to 50% by volume. The sintered sliding member is excellent in abrasion resistance, seizing resistance and heat crack resistance.
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Human—English translation of Japanese patent 02-138442, Sakai et al., May 28, 1990.
Machine-English translation of Japanese patent 08-109450, Yanase Takeshi et al, Apr. 30, 1996.
“J. Japan Inst. Metals”, 2 (1963), p .564, Fig. 3, “Carbon Concentration in Matrix Changed Accompanied with a Solid Solution of Carbide”.
Ohnishi Tetsuo
Okamura Kazuo
Takayama Takemori
Komatsu Ltd.
Wenderoth , Lind & Ponack, L.L.P.
Yee Deborah
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