COMPOSITION OF COMPOSITE FOR APPLYING OF METAL CONVERSION COATING ON METALLIC SURFACE Russian patent published in 1997 - IPC

FIELD: applying of metal conversion coating on metallic surface which is carried out by chemical and heat procedure. SUBSTANCE: composition of composite comprises, mas.%: material which supplies phosphate ions, 7-14; material which supplies chromate ions and/or bichromate ion, 2-10; material which supplies nitrate ion, 1-10; material which supplies metal ion, 3-7; material which supplies borate ion, 0.02-4.5; filler of finely dispersed metal powder, 30-85; water, the balance. EFFECT: improved quality. 10 cl, 1 tbl