Color steel coil coating line is coating for cold roll steel coil and galvanized steel coil, through chemical cleaning, chemical pretreatment, coating primer and color paint, to achieve the continuous coating production.
Operator at inlet who load galvanized steel coil to steel coil saddle, than loading coil car store fully steel coil with steel coil saddle. Car uplift steel coil on steel coil saddle carry to decoiler, as well correct center position to put into mandrel of decoiler. When decoiler running, pinch roller catch strip head to wait for welding, as well damaged strip head is cutted before welding. When previous steel coil nearly finish, it automatic decelerate, and cut damaged tail, and than joint new coil head with prevous coil tail by sewing machine. After sewing, coming into entry looper through tension machine. After steel strip pass away entry looper, coming into cleaning section 1# alkali cleaning tank, 2# alkali brushing tank, after cleaing out oil, impurity and zinc granule of steel strip surface, coming into 3# water brushing tank, #4 water spraying tank for cleaning again. After cleaning section, steel strip dry by hot air dryer, and than coming into chemical pretreatment, chemical coating machine coat chemical liquid, than drying by vertical chemical coating oven, than steel strip after air cooling, coming into primer coater for coating primer, after coating primer, steel strip come into primer solidification oven, and than after solidication oven. Steel strip pass air cooling, water cooling, hot air drying, after that, steel strip come into precision coating machine for coating surface, finished surface coating, steel strip coming into precision coating solidification oven. After that, steel strip pass air cooling, water cooling, hot air drying, and than through exit looper come into outlet section. This section reserve embosser and printer, finally, through inspection table to check, lamination machine to laminate protective film, exit shearer separate coil, cutting welding line, and take a sample, after that, recoiler recoil steel strip into finished steel coil, than unloading car transfer out, weighting and package and storage.
