COMPOSITION FOR REMOVING ATMOSPHERE CORROSION PRODUCTS FROM SURFACE OF STAINLESS STEEL

摘要

FIELD: corrosion protection. SUBSTANCE: composition contains (in g/kg): phosphoric acid, 200-300; oxalic acid, 5-10; a surfactant, 1-6; silicon oxide, 40-75; and water, the balance. Stainless steels with reduced chromium content, up to 13%, are treated with composition supplemented by inhibitor selected from the group of catapines in quantity 5-10 g/kg. EFFECT: facilitated metal surface cleaning. 2 cl, 4 tbl