mixture containing boric acid, sodium borate and / or kaliumborat to produce a carbidschicht and process for production of the carbidschicht

摘要

Articles of ferrous alloys containing carbon are coated to improve their resistance and smoothness. They are dipped in a molten bath comprising boric acid or a borate, an oxide of a Group Va metal or chromium, and a Group Va metal or chromium (other than the metal forming the oxide).