Process for the chemical and thermal treatment of steel parts to

Details Process for the chemical and thermal treatment of steel parts to Process for the chemical and thermal treatment of steel parts to

1980-03-31

1981-02-10

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

148 615Z, 148 315, C21D 148

Patent

active

042499640

ABSTRACT:
The present invention relates to a process for the chemical and thermal treating of steel parts such as gear wheels, shafts and sleeves, for increasing their fatigue strength, hardness and wear resistance, the process being characterized by following the successive applied steps of phosphatizing, carburizing, hardening and tempering.

REFERENCES:
patent: 3397092 (1968-08-01), Cavanagh
patent: 3615891 (1979-06-01), Davis
patent: 4194929 (1980-03-01), Menke

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