SURFACE PROCESSING METHOD OF STAINLESS STEEL WITH EXCELLENT OXIDIZED LAYER FILM THICKNESS, CORROSION RESISTANCE, HARDNESS, AND COLOR REPRODUCIBILITY

摘要

PURPOSE: A surface processing method of stainless steel is provided to implement the high efficient and environment-friendly surface treatment for stainless steel.;CONSTITUTION: A surface processing method of stainless steel performs the following steps. Stainless steel is prepared (S110). The stainless steel is treated with high frequency pulse electrolysis in an electrolytic bath which contains a surface treatment liquid, and a chrome oxidized film layer which is capable of emitting colors (S120). The surface treatment liquid comprises chromic acid and sulfuric acid. The surface treatment liquid comprises 50 to 300 g/L of CrO3 and 400 to 800g/L of H2SO4.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Start; (BB) End; (S110) Prepare stainless steel; (S120) Treat the stainless steel with high frequency pulse electrolysis