连铸小方坯生产大规格82B盘条的实践  

THE PRODUCTION OF LARGE GRADE 82B WITH CONTINUOUS CASTING BILLET

作　　者：周德 王全礼 李飞 章军 王彦锋 艾沛龄 芦斌 周德光 朱殷翔 

机构地区：[1]技术研究院 [2]高速线材厂 [3]第三炼钢厂

出　　处：《首钢科技》2006年第1期22-25,31,共5页Shougang Science and Technology

摘　　要：预应力钢绞线用优质高碳盘条82B在拉拔过程中常出现脆断现象，针对碳偏析、缩孔和表面横裂等质量影响因素进行分析，提出了相应的工艺改进措施。通过优化炼钢、连铸、控轧控冷以及拉拔工艺，提高了盘条的质量．降低了用户在使用过程中的断丝率。Brittle fracture often occurs during drawing the high carbon wire cord of 82B, which is used for pre-stressed steel strand. The quality factors such as carbon segregation, shrinkage cavity and surface transverse cracks have been analyzed in the paper. The relevant measures for improving the process have been put forward. Not only the wire rod＇s quality has been improved, but also the rate of breakdown has been decreased. And the processes of steelmaking, continuous casting, controlled rolling ＆ cooling, and the drawing have been optimized.

关 键 词：82B 拉拔 预应力钢绞线 脆断 

分 类 号：TF777.3[冶金工程—钢铁冶金] TG142.15[一般工业技术—材料科学与工程]