TEMPER ROLLING DEVICE AND ROLLING METHOD FOR GALVANIZED STEEL STRIP

PURPOSE:To temper steel strip surfaces while removing the foreign matter on roll surfaces by disposing nozzles for blowing high-pressure fluid on the inlet side of the work rolls of the temper rolling device and disposing mechanical polishing devices on the outlet side. CONSTITUTION:The rolling device for which the nozzles 4 for blowing high- pressure fluid and the mechanical polishing devices 3 are used in combination is used at the time of the temper rolling of the galvanized steel strip. The high-pressure fluid is blown from the nozzles 4 to the work rolls 2 and the rolls are intermittently polished by brushes or polishing cloths, by which the steel strip is rolled. The surface adjustment of the steel strip is, therefore, executed and the wear of the rolls is decreased in the state of sufficiently removing the foreign matter on the roll surface. The galvanized steel strip having excellent appearance is obtd. in this way.