METHOD AND APPARATUS FOR LEVITATING MOLTEN METAL FOR HOT DIP COATING PROCESS

摘要

PURPOSE: A method and an apparatus for levitating molten metal for hot dip coating process are provided to prevent molten metal from flowing out through the opening part by arranging an electromagnetic force generator around an opening part formed at the lower part of a plating tank and artificially forming solidification layers of the molten metal. CONSTITUTION: The method and an apparatus for levitating molten metal for hot dip coating process comprises AC (alternating current) electromagnets which are installed at long side parts of the opening part to levitate molten metal(1) by electromagnetic force at an opening part of a plating tank; cooling means(10,10') which are equipped to form solidification layers(11,11') at short side parts of the opening part of the plating tank(2) for preventing discharging of molten metal(1); temperature measuring instruments(12,12') which are installed to measure temperature of inner and outer walls of the short side parts of the opening part of the plating tank(2); a severity of quenching controller(13) which is connected to the temperature measuring instruments(12,12') to control severity of quenching of the cooling means(10,10'); and a coolant regulator(14) which is controlled by the severity of quenching controller(13) to feedback control the amount of coolant.