Method of quenching metals

Details Method of quenching metals Method of quenching metals

1983-04-11

1984-08-14

O'Keefe, Veronica

Metal treatment

Compositions

Heat treating

148 206, 148 28, 148 29, 148 30, C10M 152, C21D 144, C21D 156

Patent

active

044655231

ABSTRACT:
A method of quenching metals is described, comprising immersing said metals in a quenching oil composition comprising: (a) a base oil, and (b) a compound represented by the general formula (1) or (2) as described below. ##STR1## (wherein all the symbols are the same as defined in the claims). The use of the quenching oil composition results in the formation of a black coating layer on the metal, producing those metallic articles having improved characteristics, such as good lubricity and rust preventive properties.

REFERENCES:
patent: 3400140 (1968-09-01), Rowan et al.
patent: 3509051 (1970-04-01), Farmer et al.
patent: 3729417 (1973-04-01), Hashimoto et al.

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