Friction stressed machine parts of cast iron with ledeburitic be

Details Friction stressed machine parts of cast iron with ledeburitic be Friction stressed machine parts of cast iron with ledeburitic be

1977-04-28

1979-05-08

Dean, R.

Metal treatment

Compositions

Heat treating

148 3, 148 4, 148 35, 148 39, 148138, 148139, 164127, 277 81P, 277236, 418178, 418179, C21D 500, C22C 3704

Patent

active

041534778

ABSTRACT:
A friction stressed machine part of cast iron with a ledeburitic-containing bearing surface contains 0.1 to 10 area percent of predominantly nodular-shaped graphite in the ledeburitic-containing bearing surface. A number of methods for producing such a machine part are provided, including, casting the machine part against a quenching plate so that it hardens in a mottled manner in the region of the bearing surface.

REFERENCES:
patent: 3802927 (1974-04-01), Gomada
patent: 3998664 (1976-12-01), Rote

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