Method of improving the corrosion resistance of carbonitrided components made of ferrous materials
AssigneeDegussa AG
InventorsUlrich Christ, Helmut Kunst, Georg Wahl
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Abstract
In order to improve the corrosion resistance, carbonitrided components formed of ferrous material are treated, after an oxidation treatment, with a solution of a heat hardenable organic synthetic resin and heat-treated at 80.degree. to 200.degree. C.
Claims8
A method of improving the corrosion resistance of a carbonitrided component formed of ferrous material, which has been subjected after the carbonitriding to oxidation, comprising coating said component with a thin layer of an organic synthetic resin by applying to said component a 1-40% solution of a heat hardenable organic synthetic resin in water and/or an inert organic solvent and then heat-treating for 2 to 30 minutes at 80.degree. to 200.degree. C.
A method for improving the corrosion resistance of a carbonitrided component formed of ferrous material, comprising:
- subjecting said ferrous material to carbonitriding to form a carbonitrided component, coating said component with a thin layer of a heat hardenable organic synthetic resin and then subjecting said coated component to a temperature of 80.degree. to 200.degree. C. for a period of 2 to 30 minutes, to form a thin layer of an organic synthetic resin material on the surface of said ferrous component to thereby improve the corrosion resistance thereof as compared to a component which had not been subjected to the carbonitriding.
Dependencies are inferred from the claim text.