FIELD: method for hot-melt coating.
SUBSTANCE: steel band is galvanized by using a bath with zinc melt having effective aluminum concentration of about 0.1-0.15 mass%, while maintaining mean bath temperature of about 440-4500C. Circulation of zinc melt is carried out to prevent dross accumulation. Band temperature is equal to that of nozzle for exhaust band into the bath (namely of 470-5380C). Band coating is carried out by heating thereof in furnace and dipping into bath to produce substantially dross-free band. Effective aluminum concentration in galvanizing bath and galvanizing for annealing bath may be the same or identical.
EFFECT: steel band with high quality surface coating.
19 cl, 6 dwg, 1 tbl
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