韶钢高一线轧制过程导致冷镦钢冷镦开裂的原因及控制措施

Causes and Control Measures of Cold Heading Cracking of Cold Heading Steel Caused by Rolling Process of High Speed Wire Rolling Line #1 at SGIS

在韶钢高一线重点开发冷镦钢等高等级工业线材的背景下,针对冷镦钢冷镦过程中存在的冷镦开裂问题进行了研究,重点分析了由于轧制过程中造成的表面质量问题导致冷镦过程开裂的情况,指出了轧制过程中造成冷镦开裂的原因主要是由于料型出耳、折叠缺陷和轧制过程中的划伤缺陷,提出的工艺改进措施通过现场实践表明效果显著,大大改善了韶钢高一线存在的冷镦钢冷镦开裂质量问题,取得了显著的经济效益。

Focusing on the development of high-grade industrial wires like cold heading steel,the problem of cold head cracking existing in the production process of cold heading steel was studied.The analysis focused on the cracking of the cold heading process due to the surface quality problems caused by the rolling process.It is pointed out that the cause of cold heading cracking during rolling is mainly due to the ear shape,folding defects and scratches during rolling.The proposed process improvement measures in the actual application have shown remarkable results,which greatly improved the quality of cold heading cracking of cold heading steel at SGIS,and achieved remarkable economic benefits.