| abstract |
(57) [Summary] [Purpose] To provide a method for gold plating of stainless steel material which has no risk of work, good finished color tone of parts, and stable quality. [Structure] The method for gold-plating a stainless steel material according to the present invention is In the method of gold plating a stainless steel material, wherein the treatment steps include an electrolytic cleaning treatment step, an activation treatment step, a nickel strike plating treatment step, a nickel plating treatment step, and a gold plating treatment step, electrolytic treatment in the electrolytic cleaning treatment is performed. The cleaning process is divided into two steps, and two kinds of electrolytic cleaning agents are used. In the activation processing step, a plurality of activation processing agents are selectively used according to the contents of chromium, carbon and lead in the stainless steel material. It is characterized by doing. |