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近几年冷轧带钢的质量异议绝大多数都集中于表面缺陷问题,冷轧带钢表面缺陷形态千变万化,产生原因错综复杂,炼钢、热轧、冷轧之间各工序都可直接或间接造成表面缺陷的产生。文章对唐山建龙实业有限公司冷轧厂低碳铝镇静钢的表面起皮缺陷进行了较为全面的分析。结果表明表面起皮缺陷的原因归结于皮下夹杂和皮下气泡。各工序只有正确识别各种缺陷,加强对缺陷的检测和分析,找到问题的根源,采取相应的措施,才能改善产品质量。
In recent years, the majority of the quality of cold-rolled strip objections are focused on the surface defects, cold-rolled strip surface forms of ever-changing, resulting from the intricacies of the steelmaking, hot-rolled, cold-rolled processes can be direct or indirect Cause surface defects. The paper makes a comprehensive analysis on the surface skin defects of low carbon aluminum killed steel in Tangshan Jianlong Industrial Co., Ltd. The results suggest that the cause of surface skin defects is due to subcutaneous inclusions and subcutaneous air bubbles. Only correct identification of the various processes of various defects, to strengthen the detection and analysis of defects to find the root cause of the problem, to take appropriate measures to improve product quality.