METHOD OF PREPARING OF PROTECTIVE COATING ON MEMBERS MADE OF MAGNESIUM ALLOYS, MAINLY LARGE-SIZED

摘要

FIELD: protection of magnesium alloys against corrosion. SUBSTANCE: method involves the preparation of surface and oxidation in solution containing, g/l: H₃PO₄ 1.03-15; BaCl₂ 50-200 or CaCl₂ 20 - 150; NH₄H₂PO₄ 10 - 70; NaNO₂ 1-7; NaCH₃COO 5-25, and (NH₄)₆Mo₇O₂₄ 1-5 at 18-35 C for 10-60 min. EFFECT: enhanced protective and adhesion properties of coating, decreased toxicity of solution, increased working capacity. 1 tbl