Sn system, 6 value chrome free finishing medicines and finishing steel sheet null trivalent chrome chemical compound for the Al

摘要

(1)3 value chrome chemical compound (A) and the lubricity grant component which consists of above 1 or 2 kinds inside the water detachable silica (B) and the polyolefine type wax, the fluorine wax and the paraffin wax it contains with (C) and the water, furthermore the water detachable silica (B) and the lubricity grant component the Sn system which features that (C) solid amount conversion ratio (b)/(c) is the range 5/95 - 95/5, 6 value chrome free finishing medicines for the Al plated steel sheet.