Valve seat material for an internal combustion engine

Details Valve seat material for an internal combustion engine Valve seat material for an internal combustion engine

C - Chemistry, Metallurgy

22

C

75/102

C22C 38/60 (2006.01) C22C 33/02 (2006.01) F01L 3/02 (2006.01)

Patent

CA 1064739

TITLE OF THE INVENTION A valve seat material for an internal combustion engine ABSTRACT OF THE DISCLOSURE The present invention relates to a valve seat materi- al for an internal combustion engine, which comprises a sinter- ed ferrous alloy having the composition by weight: 3-15 % moly- bdenum, 2-12 % cobalt, 0.1-200 % carbon, optionally 0-15 % lead and 0-8 % glass and the remainder being iron except fox usual impurities and trace elements. In cases There it is desirable to raise the self-lubricating property further, in particular, 0.5-10 % tungsten or 0.5-10 % tungsten and 0.5-8 % nickel can, in addition, be incorporated is the matrix.

221563

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