seen that oka hardheten in a film, which is formed on a korrosionsmotstandskraftig, kromhaltig legeringsyta with hjelp of a vattenlosning of chromium and svavelsyror

摘要

Films or coatings on stainless steel produced by immersion in solutions of chromic acid are electrolytically treated to increase the coating's resistance to abrasion. In the electrolytic treatment, the coated stainless steel is made the cathode in a bath of an aqueous solution of chromic acid.