锻压技术

防静电地板用冷轧板FJB1冲压开裂原因分析

英文标题：Cause analysis of cold rolled plate FJB1 cracking by stamping for anti static floor

作者：岳重祥李腾飞陈爱华李化龙

单位：江苏省(沙钢)钢铁研究院

关键词：冷轧板FJB1 冲压开裂

分类号：TG386.41

出版年,卷(期):页码：2015,40(3):41-45

摘要：

借助金相显微镜、扫描电镜、能谱仪和拉伸试验等相关试验方法，分析了防静电地板用冷轧板FJB1冲压开裂的原因。研究结果表明，冷轧板内部夹杂物和表面缺陷是造成冲压开裂的直接原因；同时，冷轧板部分区域组织和性能欠佳、厚度偏差较大等原因也可造成冲压开裂。应按照冷轧产品一贯制的管理方法，从炼钢-热轧-冷轧-退火-冲压全流程考虑，优化工艺，提高冷轧板的质量，降低冲压开裂缺陷发生率。采取相应措施后，冲压开裂缺陷发生率由15.5%下降到小于2%。

With the aids of related measuring methods such as OM, SEM, EDS and tensile test and so on, the cracking cause of cold rolled plate FJB1 used in anti-static floor in the stamping process was analyzed. It is demonstrated that internal inclusions and surface defects are the direct causes that lead to cracking in the stamping process. Meanwhile minor faults of microstructure and properties, or larger thickness deviation can cause the crack too. In order to improve the quality of the cold rolled plate and minimize crack defective rate in the stamping process, processes of steelmaking, hot rolling, cold rolling, annealing and stamping should be optimized as a whole. After adopting these measures, defective rate of cracking by stamping drops from 15.5% to less than 2%.

基金项目：

江苏沙钢集团技术中心创新能力建设项目（发改办高技［2012］989）

岳重祥(1982-)，男，博士，工程师

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