FIELD: metal coatings. SUBSTANCE: method includes treating metallic, in particular, steel sheet by passing current when immersed in electrolyte containing (in g/l): tin in the form of bivalent ions, 20-37; sulfamic acid (total), 100-140; proxamine-385, 0.5-2.5, and water, the balance. Temperature of electrolyte is maintained within the range 20 to 70 C at current density 20-70 A/dm. EFFECT: increased quality of sheet metal due to better evenness of coating and simultaneously reduced edge effect. 1 tbl
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Authors
Dates
1998-01-27—Published
1997-01-28—Filed