Method for thermally treating metal components

Details Method for thermally treating metal components Method for thermally treating metal components

1976-03-19

1978-03-07

Dean, R.

Metal treatment

Compositions

Heat treating

148 18, 148 206, 148 29, 148155, 148157, C22F 108

Patent

active

040778142

ABSTRACT:
A method for thermally treating metal components. The metal components which are in a partially finished condition are annealed by being placed within a liquid bath which is at a temperature between 200.degree. and 300.degree. C. The liquid bath is a mineral oil and is situated within an enclosure into and out of which the metal components are moved by way of an inlet and outlet of the enclosure which themselves contain liquid for sealing off the interior of the enclosure from the outer atmosphere. The liquid at the inlet and outlet is also a mineral oil and is at a temperature of approximately 190.degree. C, in all cases less than 200.degree. C. The interior atmosphere in the enclosure is an inert atmosphere. The extent of contact between the liquid at the inlet and outlet and outer atmosphere is maintained at a minimum.

REFERENCES:
patent: 1784221 (1930-12-01), Cain
patent: 3756871 (1973-09-01), Coch

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