Passivation technique for filming on surface of stainless steel


Application Number: 00109334
Application Date: 2000.05.29
Publication Number: 1326012
Publication Date: 2001.12.12
Priority Information:
International: C23C22/50
Applicant(s) Name: Beijing Science and Technology Univ
Address:
Inventor(s) Name: Wang Xuanyi;Wu Yinshun;Ding Baofeng
Patent Agency Code: 11207
Patent Agent: yang lingli
Abstract A process for passivating the surface of stainless steel features that its passivating liquid, instead of chromate one, is prepared from the acid solution with strong oxidizing power and rare-earth additive. The passivated stainless steel has a greatly improved anticorrosion performance.