Apparatus for hardening workpieces of steel

Details Apparatus for hardening workpieces of steel Apparatus for hardening workpieces of steel

1976-08-04

1977-07-19

Dost, Gerald A.

Metallurgical apparatus

Means treating solid metal

By contact with gas

C21D 106

Patent

active

040364828

ABSTRACT:
An apparatus for hardening a workpiece of steel, according to which the wpiece is heated, for instance in a furnace, to austenitizing temperature and is carburized by a pressurized mixture of purified air and propane surrounding the workpiece, whereupon the workpiece is quenched in a cooling region.

REFERENCES:
patent: 2237966 (1941-04-01), Koehring
patent: 2240146 (1941-04-01), Ness
patent: 2398012 (1946-04-01), Kiser

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