Carburizing process utilizing atmospheres generated from nitroge

Details Carburizing process utilizing atmospheres generated from nitroge Carburizing process utilizing atmospheres generated from nitroge

1980-05-12

1982-03-02

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

148 166, 148 203, C21D 148

Patent

active

043176879

ABSTRACT:
A process for carburizing ferrous metal articles in a furnace under an atmosphere derived from an input of nitrogen and ethanol injected into the furnace during the entire cycle. Carburization is controlled in a first embodiment by the control of ethanol and nitrogen mixture and water vapor content of the mixture as well as total flow through the furnace and in a second embodiment by controlling the nitrogen-ethanol mixture to which is added water and an enriching or carburizing agent.

REFERENCES:
patent: 2673821 (1954-03-01), Stutzman
patent: 3201290 (1965-08-01), Wyss
patent: 4154232 (1979-03-01), Solomon
patent: 4154629 (1979-05-01), Asai et al.
Traitement Thermique, 62 (1971), 35-45, pub. Traitement Thermique, 254 Rue de Vaugirad, 75740, Paris.

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