Continuous carburizing method

Details Continuous carburizing method Continuous carburizing method

1974-10-30

1976-04-13

Satterfield, Walter R.

Metal treatment

Compositions

Heat treating

148 16, 148153, 148156, C21D 145

Patent

active

039501922

ABSTRACT:
An improved method for continuously carburizing low carbon cold rolled coil stock is disclosed. The carburized product is characterized by the absence of proeutectoid ferrite. The method comprises heating low carbon steel stock in the austenitizing range of 950.degree.-1150.degree.C. (1750.degree.-2100.degree.F.) in a continuous heat treating furnace wherein the furnace contains a high carbon availability so that residence time is of a short duration; homogenizing the stock so as to attain uniform macro distribution of carbon across the length, width and thickness of the stock and quenching the stock so that a uniform micro distribution of carbon is attained.

REFERENCES:
patent: 1932032 (1933-10-01), Cowan
patent: 2513713 (1950-07-01), Cope
patent: 2955062 (1960-10-01), Cullen et al.
patent: 3356541 (1967-12-01), Cullen
patent: 3877684 (1975-04-01), Kurihara

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