Heat treatment of metals in a controlled surface atmosphere

Details Heat treatment of metals in a controlled surface atmosphere Heat treatment of metals in a controlled surface atmosphere

1974-01-18

1976-04-13

Weiffenbach, Cameron K.

Coating processes

Heat decomposition of applied coating or base material

427372, 427383, 427403, 427404, 427405, 427419, C23C 300

Patent

active

039505758

ABSTRACT:
A process of treating metals with coatings capable, upon heating, of providing and maintaining a controlled atmosphere around the surfaces of said metals which process comprises coating the surfaces of said metals with base coating composition capable, upon heating, of providing a gas, and then with an over-coating composition capable of maintaining the gas around the surfaces of the metals at high temperatures while excluding an environmental oxidizing atmosphere therefrom, and thereafter heating the coated metals in the oxidizing atmosphere.

REFERENCES:
patent: 3698943 (1972-10-01), Colantuono

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