摘要
包钢在生产大规格合金品种钢圆管坯时出现表面裂纹。文章从表面裂纹产生的特征开始分析,找出表面裂纹出现的原因,通过系统分析总结出消除圆坯表面裂纹的工艺措施。建议优化钢种成分提高热延展性,以合适的拉速匹配二冷区冷却制度,提高钢坯过矫直段温度,解决了圆坯表面裂纹的问题。
The round billet of large alloy variety steel manufactured by Baotou Steel is with the surface cracks. In the paper,the causes of them are found out through analyzing their features. Moreover,such technological measures as optimizing the steel components to improve the hot ductility and increasing the temperature of straightening section when billet is through it with the appropriate casting speed to match the cooling system of secondary cooling zone are summarized through systematic analysis as well as the problem is solved with them.
出处
《包钢科技》
2015年第5期22-24,共3页
Science & Technology of Baotou Steel
