Protective atmosphere process for annealing and or...

Details Protective atmosphere process for annealing and or... Protective atmosphere process for annealing and or...

C - Chemistry, Metallurgy

21

D

148/42

C21D 1/32 (2006.01) C21D 1/76 (2006.01)

Patent

CA 1147634

ABSTRACT Methanol and nitrogen are injected into a furnace utilized for annealing or spheroidizing metal articles. The methanol reacts inside the furnace to provide an atmosphere with a carbon potential that will minimize or prevent carbon removal or carbon addition to the surface of the ferrous metals being treated.

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