摘要
热轧板卷边裂是常见的质量缺陷。介绍了邯钢2250热轧生产线板坯边裂的形貌特征及分布规律。分析了边裂产生的原因主要是夹渣和夹杂造成的。通过建立和完善《热轧板卷边裂图谱》,有针对性地指导炼钢生产,边裂缺陷率由3.0%以上减少到0.4%以下,降级改判损失明显减少。
The edge crack is one of normal quality defect on hot - rolled slab. It is introduced the morphology characteristic and distribution law of edge cracks on slab in 2250 hot - rolling line of Han Steel, analyzed it is caused mainly by slag and impurities inclusion in steel. With establishment and improvement of 《Atlas of edge cracks of hot - rolling strip and coil》, and under its direction for steelmaking production, the edge crack defect rate reduces from over 3.0% to below 0.4% , the loss due to degradation obviously reduced.
出处
《河北冶金》
2012年第12期38-39,65,共3页
Hebei Metallurgy
关键词
边裂
夹渣
夹杂
控制
edge crack
slag inclusion
impurities inclusion
control
