Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Consolidation of powder prior to sintering
Patent
1991-09-30
1994-07-05
Walsh, Donald P.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Consolidation of powder prior to sintering
419 32, 75230, 75235, 75236, 75247, B22F 316
Patent
active
053265262
ABSTRACT:
Sintered iron alloy composition and method of manufacturing the same, the sintered alloy composition comprising: about 1.5 to about 2.5% carbon by weight; about 0.5 to about 0.9% manganese by weight; about 0.1 to about 0.2% sulfur by weight; about 1.9 to about 2.5% chromium by weight; about 0.15 to about 0.3% molybdenum by weight; about 2 to about 6% copper by weight; not more than about 0.3% by weight of a metal element material comprising at least one member selected from the group consisting of tungsten and vanadium; an effective content of a first solid lubricant material comprising at least one member selected from the group consisting of magnesium metasilicate minerals and magnesium orthosilicate minerals; and balance iron. This alloy composition is preferably used for making machine parts, such as slide members of valve operating systems for internal combustion engines.
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Fujiki Akira
Hayashi Koichiro
Ikenoue Yutaka
Kano Makoto
Greaves John N.
Hitachi Powdered Metals Co. Ltd.
Nissan Motor Co,. Ltd.
Walsh Donald P.
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