发明名称 CONTINUOUS COLD ROLLING METHOD OF FERRITIC STAINLESS STEEL AND FERRITIC STAINLESS STEEL USING THE SAME
摘要 PURPOSE: A continuous rolling method for ferritic stainless steel and ferritic stainless steel manufactured by the same is provided to decrease the degree of roping bending during continuous rolling and to reduce oil pit on the surface of a cold rolled steel sheet, thereby improving glossiness and organizing a differentiated process. CONSTITUTION: A continuous rolling method for ferritic stainless steel uses a first to a fourth continuous rolling mill stands which are successively arranged. The amount of tension applied to the stainless steel gets smaller as the continuous rolling is executed from the first continuous rolling mill stand to the fourth continuous rolling mill stand so that the area ratio of oil pit of the rolled stainless steel becomes less 0.3%. The first to the fourth continuous rolling mill stands roll the stainless steel with tension of 90-180kN. After the rolling, the glossiness of the stainless steel is 915 or greater. Before the rolling, the width of the stainless steel is 1000-1250mm and the thickness is 1.0-3.0mm. By using the first to fourth continuous rolling mill stands which are successively arranged, continuous rolling is executed. After the continuous rolling, the area ratio of oil pit of the rolled stainless steel is 0.3% or less and the glossiness is 915 or greater. [Reference numerals] (AA) Tension(kN); (BB) Comparative embodiment; (CC) Embodiment; (DD) 1 pass; (EE) 2 pass; (FF) 3 pass; (GG) 4 pass
申请公布号 KR20130019657(A) 申请公布日期 2013.02.27
申请号 KR20110081751 申请日期 2011.08.17
申请人 POSCO 发明人 PARK, YOUNG WOO;PARK, JAE SEOK;YANG, SUNG HO
分类号 B21B3/02 主分类号 B21B3/02
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