The anti-dazzle property, color tone uniformity and production manner null of the dull finished stainless steel plate which is superior

摘要

PURPOSE: To remarkably improve corrosion resistance by lightly rolling a stainless steel with a dull roll and pickling it after annealing. ;CONSTITUTION: A stainless steel is cold rolled, atmospherically annealed and pickled. Then, the steel is lightly rolled by the dull roll. Further, the steel is pickled after atmospherically or bright annealing. For instance, 4mm thickness steel strip of SUS304 is cold rolled by multi-pass rolling into a 1.6mm thickness strip to be annealed and pickled. The strip is finished into 1.5mm thickness strip by dull rolling using a rolling work roll which is dull worked to has Ra of 13μm by electric charge machining and again annealed and pickled. Thus, the dull finished surface is excellent in color uniformity. Also, the corrosion resistance is remarkably improved since the strip is annealed and pickled again after being dull finished. Thus, the dull finished stainless steel sheet by which an excellent practical performance is fulfilled is stably produced.;COPYRIGHT: (C)1994,JPO&Japio