PLATING BATH FOR FABRICATING GALVANIZED STEEL USING SLIDE TYPE OPENING/CLOSING COVER FOR DECREASE HEAT LOSS

摘要

PURPOSE: A molten galvanized steel plating bath including an opening/closing cover for heat loss decrease is provided to minimize heat loss from the surface of the galvanized steel plating bath by covering the bath using a cover during a molten galvanized steel plating process. CONSTITUTION: A molten galvanized steel plating bath including an opening/closing cover for heat loss decrease comprises a snout(240), a sink roll(260), a collect roll(270), a stabilizer roll, a rail and a cover(100). The snout guides a steel sheet to melting zinc coating solution. The sink roll switches direction. The collect roll and stabilizer roll vertically forward the steel sheet. The rail is formed on sidewall top of a galvanizing bath which is in parallel with the side of the steel sheet. The cover moves along the rail with a sliding mode. The cover comprises a sub rail and a sub cover on top.