双相钢铸坯表面孔状缺陷热轧过程演变规律

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	英文篇名：Evolution of Hole-shaped Defects on the Surface of Dual-phase Steel Billet in Hot Rolling Process 作者：吴月龙 英文作者：Wu Yuelong; 关键词：孔状缺陷 ; 热轧 ; 延伸 ; 压缩 英文关键词：hole defect;;hot rolling;;extend;;compress 中文刊名：ZXJK 英文刊名：China Heavy Equipment 机构：山东泰山钢铁集团有限公司; 出版日期：2019-05-13 出版单位：中国重型装备 年：2019 期：No.140 语种：中文; 页：ZXJK201902012 页数：2 CN：02 ISSN：51-1702/TH 分类号：38-39

摘要

针对双相不锈钢在铸坯易出现因氮气上浮形成孔状缺陷的问题,在铸坯上进行热轧轧制,发现铸坯表面孔状缺陷随轧制过程的演变规律,确定可增加轧制道次,消除缺陷。
        In view of the problem that the billet of dual-phase stainless steel is prone to form hole-shaped defects due to nitrogen floatation,hot rolling have been carried out on the billet,and the evolution law of the hole-shaped defects on the surface of the billet with the rolling process have been found,and it is determined that the defects can be eliminated by increasing the rolling passes.

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