低温用焊丝钢BTH60的工艺优化

Process Optimization of BTH60 Cryogenic Welding Wire Steel

刘卫东，张会全

上海大学上海市现代冶金与材料制备重点实验室；南通宝钢钢铁有限公司

摘　要: 介绍了南通宝钢低温用焊丝钢BTH60的工艺优化情况,根据钢种特性有效控制钢中残余有害元素和合金元素,通过对脱氧机理分析实施了精炼渣系优化、夹杂物变性处理技术和控氮技术,合理运用非金属夹杂物控制技术和控制轧制工艺,实现了钢中低P、S、O、N和低级别夹杂物,完全满足产品的成分、力学性能、低温冲击韧性和夹杂物要求,逐步形成了稳定的BTH60的生产工艺路线,产品质量稳定,组织性能优良,满足了用户要求。
关键词: 焊丝钢；非金属夹杂物；控制轧制
分类号: TF762
栏　目: 试验研究
出　处: 《冶金与材料》2013年第5期，第 5-8 页（共 4 页）
出版日期: 2013-10-15
知网数据: 下载 96 次（截至 2026-09-29）

Abstract: It is introduced the process opitimization of BTH60 steel for cryogenic weld wire steel. It effectively controls the harmful residual elements in steel and alloy elements according to the grade of steel characteristics,it implements the system optimization,the refining slag inclusion degeneration treatment technology and controlling technology of nitrogen through analyzing the deoxidization mechanism. Its production process is gradually formed based on reasonable application of non met allic inclusion technique and controlled- rolling. It implements low content of P,S,O,N in steel and low level of inclusions,it meets the product composition,mechanical properties,low temperature impact toughness and inclusions,it has gradually formed a stable BTH60 production process route,product quality is stable and high performance,it meets the requirement of users.
Keywords: weld wire steel; non metallic inclusion; controlled-rolling

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