Improved process for coloring low temperature carburized...

C - Chemistry – Metallurgy – 25 – D

Patent

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C25D 5/18 (2006.01) C25D 5/36 (2006.01) C25D 9/04 (2006.01) F16L 9/10 (2006.01)

Patent

CA 2640937

A low temperature carburized stainless steel workpiece is colorized by electropolishing followed by alternating current electrolysis in an electrolysis bath maintained at a neutral or slightly basic pH and containing ions of a metal having multiple valence states.

La présente invention concerne une pièce en acier inoxydable cémenté basse température qui est coloré par un polissage électrolytique suivi par une électrolyse à courant alternatif dans un bain électrolytique maintenu à un pH neutre ou légèrement basique et contenant des ions d'un métal ayant des états de valences multiples.

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