METHOD FOR IMPROVEMENT OF METAL COATING ON STEEL BAND

摘要

FIELD: metal processing.SUBSTANCE: invention relates to application of metal coating on steel strip (1). To increase corrosion resistance of coating, method comprises melting of coating by induction heating by means of at least one coil (2) inductance at maximum temperature (PTM) higher than melting temperature (T) of coating material, then in cooling device (3) is cooled to temperature (T) fast cooling located below melting temperature, coating during time (t) is held at temperature higher than melting temperature (T), and that time (t) by means of displacement of at least one inductance coil (2) relative to cooling device (3) matched with maximum temperature (PTM) and thickness of coating to melt coating on its entire thickness of up to layer bordering with steel strip.EFFECT: high corrosion resistance of coating.12 cl, 3 dwg