Method of producing bimetal for use as material for plain bearin

Details Method of producing bimetal for use as material for plain bearin Method of producing bimetal for use as material for plain bearin

1991-02-15

1991-12-24

Heinrich, Samuel M.

Metal fusion bonding

Process

Plural heat applying

228158, 228208, 228248, 219 1061R, 29898, B23K 3100

Patent

active

050744585

ABSTRACT:
There is disclosed a method of producing a bimetal for use as a material for a plain bearing. A copper alloy powder is placed on a back steel. The back metal and the copper alloy powder are preheated to a temperature near a Curie point of the steel in a reducing atmosphere by high-frequency induction heating. The preheated back steel and copper alloy powder are heated to a temperature of 770.degree. C. to 950.degree. C. in one of an electric resistance furnace and a gas furnace in a reducing atmosphere so that the copper alloy powder is sintered to form a sintered copper alloy layer and at the same time the sintered copper alloy layer is bonded to the back steel, thereby producing the bimetal.

REFERENCES:
patent: 3831258 (1974-08-01), Elbert et al.
patent: 4141482 (1979-02-01), Reynolds
patent: 4788396 (1988-11-01), Maugein et al.
patent: 4813965 (1989-03-01), Roberts

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