| abstract |
(57) [Summary] [Problem] A stainless steel sheet exhibiting high adhesion to various coating materials such as an organic coating film, an inorganic coating film, and a cladding material by subjecting a stainless steel sheet surface to electrolytic surface roughening treatment. And a method widely applicable to all stainless steel types. SOLUTION: In an aqueous ferric chloride solution, anodic electrolysis at a potential of +0.5 V SCE or more, and -0.3 to -1.5 V SCE A method of roughening the surface of a stainless steel sheet, wherein the stainless steel sheet is subjected to alternating electrolysis alternately performing cathodic electrolysis at a potential between the above. Here, V SCE represents a potential (V) with respect to a saturated calomel reference electrode potential. |