冷轧原料质量缺陷及改进措施

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英文篇名：Quality defect of cold rolled raw material and improvement measure 作者：隋跃川 英文作者：Sui Yuechuan;Benxi Steel Group Corporation, beiying Iron & Steel (Group) Co.,Ltd.; 关键词：冷轧原料 ; 质量缺陷 ; 抗拉强度 ; 氧化膜 ; 张力控制 英文关键词：cold-rolled raw material;;quality defects;;tensile strength;;oxidation film;;tension control 中文刊名：JSZP 英文刊名：Metal Products 机构：本钢集团北营钢铁(集团)股份有限公司; 出版日期：2019-04-25 出版单位：金属制品 年：2019 期：v.45;No.267 语种：中文; 页：JSZP201902017 页数：4 CN：02 ISSN：41-1145/TG 分类号：59-62

摘要

冷轧原料质量缺陷主要有钢卷表面氧化铁皮残留,钢卷头部松卷、扁卷,卷取头部宽度拉窄等。采用优化工艺制度,调整开轧轧制时间,降低头部温度,提高设备精度,张力分段控制等措施减少缺陷。出钢温度控制在(1 150±10)℃,薄规格轧制时入精轧温度在1 020℃左右。轧辊冷却水流量应控制在450.4 m~3/h左右。经过试验,产品质量缺陷得到有效改善。
        The quality defects of cold-rolled raw material mainly include iron oxide residue on surface of steel coil, loose and flat rolls on the head of steel coil, and narrow the width of roll head. Optimized process system is adopted to adjust rolling time, decrease head temperature, improve equipment precision, tension section control and other measures to reduce defects. The temperature of exit steel is controlled at(1 150±10) ℃, and the temperature of finish rolling is controlled about 1 020 ℃ when rolling thin specifications. Roller cooling water flow should be controlled about 450.4 m~3/h. The test show that the quality defect has been improved effectively.

引文

[1] 何云飞,何磊,李普,等.冷轧产品质量对原料及上下游工序要求初步探讨[C]//中国金属学会.2008年全国轧钢生产技术会议文集.北京:中国金属学会,2008.
    [2] 栾洲.北营轧钢厂设备点检定修管理应用研究[D].沈阳:辽宁大学,2014.