Method for the gas carburization of workpieces made of steel

Details Method for the gas carburization of workpieces made of steel Method for the gas carburization of workpieces made of steel

1978-09-18

1980-05-06

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

148 166, 148 315, C21D 148

Patent

active

042016002

ABSTRACT:
A method for gas carburization of workpieces made of steel in a furnace chamber, by which in the initial phase of the treatment more carbon than desired is released or dissolved in the workpiece surface and in the final phase of the treatment is decarburized to the desired edge carbon content by change of the quantity flow of the decarburizing gas. The decarburizing process is performed by exclusive introduction of a hydrogen-free, oxygen-containing decarburization gas in the furnace chamber.

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patent: 2170158 (1939-08-01), Rennerfelt
patent: 2201181 (1940-05-01), Kalling
patent: 2827407 (1958-03-01), Carlson et al.
patent: 3313660 (1967-04-01), Vordahl
patent: 4035203 (1977-07-01), L'Hermite et al.
patent: 4113426 (1978-09-01), Rogers
Metals Handbook, 8th ed. vol. 2, pp. 85-92, American Society for Metals.

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