SWRCH22A自攻螺钉生产质量问题改善

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英文篇名：Improvement of Production Quality of SWRCH22A Self-tapping Screws 作者：温国栋 ; 利强 ; 薛伟 英文作者：WEN Guo-dong;LI Qiang;XUE Wei;Tianjin Rongcheng United Iron and Steel Group Co., Ltd.; 关键词：自攻螺钉 ; 电磁搅拌 ; 氧化铁皮 ; 连铸 ; 偏析 英文关键词：self-tapping screw;;electromagnetic stirring;;iron oxide;;continuous casting;;segregation 中文刊名：TJYG 英文刊名：Tianjin Metallurgy 机构：天津荣程联合钢铁集团有限公司; 出版日期：2018-04-15 出版单位：天津冶金 年：2018 期：No.212 语种：中文; 页：TJYG201802011 页数：3 CN：02 ISSN：12-1200/TF 分类号：23-25

摘要

分析了SWRCH22A自攻螺钉生产过程中出现的氧化铁皮残留、拉拔断裂、硬度不均匀、搓丝尖裂、扭矩不合格问题的产生原因,同时制定了优化措施。通过连铸时采取结晶器末端电磁搅拌、提高盘条轧制时的吐丝温度、降低盘条集卷温度、改善拉拔条件、制定合理的球化退火工艺,解决了上述问题。
        The causes of the problems of iron oxide residue, drawing fracture, uneven hardness, twisting tip crack and unqualified torque in the production of SWRCH22A self-tapping screws were analyzed,and the optimization measures were worked out. By means of adding electromagnetic stirring at the end of the mould during continuous casting, raising the temperature of wire coiling, reducing the temperature of coil collection, improving the drawing condition, and working out the reasonable spheroidizing annealing process, the above problems were solved.

引文

[1]罗志俊.热轧工艺对低碳冷镦钢盘条表面氧化铁皮的影响[J].首钢科技,2013,(3):30.
    [2]邵明海.凝固末端电磁搅拌技术在特钢连铸上的应用[J].莱钢科技,2011,(1):68.