Title:
SURFACE CTS ANTI-CORROSION TREATMENT METHOD FOR STAINLESS STEEL PART
Document Type and Number:
WIPO Patent Application WO/2018/033096
Kind Code:
A1
Abstract:
Disclosed is a surface anti-corrosion treatment method for stainless steel. The method comprises the following steps: (1) performing chemical de-oiling and alkaline corrosion treatments on the surface of stainless steel by using a sodium hydroxide solution and a solution containing an alkaline corrosion active agent, and then washing with water; (2) performing, by using an oxidation solution, an oxidation treatment on the surface of the stainless steel treated in step (1), and then washing with water; (3) using the surface of the stainless steel treated in step (2) as a cathode and soaking same in an electrolyte for electrolysis, and then washing with water; and (4) placing the surface of the stainless steel treated in step (3) at a temperature of 50ºC - 60ºC under a humidity of 60% - 70%, and performing a hardening treatment. Also disclosed are the use of the treatment method in the treatment of a stainless steel part and a stainless steel part obtained after the treatment by means of the treatment method.
Inventors:
CHEN CHAO (CN)
Application Number:
PCT/CN2017/097656
Publication Date:
February 22, 2018
Filing Date:
August 16, 2017
Export Citation:
Assignee:
SHENZHEN CANDORTECH INCORPORATED COMPANY (CN)
International Classes:
C23C28/04; C23C22/40; C25D11/36
Foreign References:
CN106435585A | 2017-02-22 | |||
CN106399990A | 2017-02-15 | |||
CN106567061A | 2017-04-19 | |||
CN102691059A | 2012-09-26 | |||
CN103031552A | 2013-04-10 | |||
JPS63307282A | 1988-12-14 |
Other References:
See also references of EP 3502316A4
Attorney, Agent or Firm:
LEADING INTELLECTUAL PROPERTY FIRM (CN)
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