Roller in rotary compressor and method for producing the same

Details Roller in rotary compressor and method for producing the same Roller in rotary compressor and method for producing the same

1988-11-14

1989-08-29

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75233, 75243, 419 2, 419 11, 419 19, 419 26, 419 27, 419 29, 419 38, C22C 2912

Patent

active

048613720

ABSTRACT:
Disclosed is a roller for use in a rotary compressor, which roller comprising a sintered body consisting essentially of 0.5-2.0% by weight of C, 1.0-5.0% by weight of Cu, 0.5-3.5% by weight of Cr, 0.1-1.0% by weight of Co, 0.1-1.0% by weight of W and a balance Fe and unavoidable impurities. Hard particles of Cr-Co-W alloy are dispersed in one of pearlitic and tempering martensitic matrix, and sintered pores of the sintered body are sealed with tri-iron tetroxide. Resultant sintered body has high wear resistance and scuffing resistance capable of being used as an inverter type compressor.

REFERENCES:
patent: 3874049 (1975-04-01), Ferguson
patent: 4190440 (1980-02-01), Klein et al.
patent: 4205986 (1980-06-01), Klein et al.

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