Method for hardening the surfaces of work pieces made of...

C - Chemistry – Metallurgy – 21 – D

Patent

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C21D 1/46 (2006.01) C21D 1/06 (2006.01)

Patent

CA 2642322

A method for hardening the surfaces of work pieces made from stainless steel includes submerging the work pieces into a molten salt bath having the composition: potassium acetate 60 - 100 weight %; sodium acetate 0 - 100 weight %; metal salt 0 - 2 weight %, and are subjecting the work pieces to the molten salt bath for a period of 24 to 240 hours, during which the temperature of the molten salt bath is maintained less than 400° C.

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