石横特钢65 t Consteel EBT EAF-LF-CC流程生产焊线钢H11Mn2SiA的工艺实践

特殊钢 ›› 2007, Vol. 28 ›› Issue (3): 62-63.

石横特钢65 t Consteel EBT EAF-LF-CC流程生产焊线钢H11Mn2SiA的工艺实践

李洪勇，柴建铭

济南钢铁集团石横特殊钢厂，肥城271612

收稿日期:2006-10-31 出版日期:2007-05-01 发布日期:2023-02-04
作者简介:李洪勇(1975-),男，工程师，1998年包头钢铁学院钢铁冶金专业毕业，从事炼钢工艺研究和新产品开发。

Process Practice for Production of Steel H11Mn2SiA for Welding Wire by 65 t Consteel EBT EAF-LF-CC Flowsheet at Shiheng Steel

Li Hongyong ，Chai Jianming

Shiheng Special Steel Works,Jinan lron and Steel Group,Feicheng 271612

Received:2006-10-31 Published:2007-05-01 Online:2023-02-04

摘要/Abstract

摘要： 采用60％铁水+优质废钢,Comteel电弧炉偏心底炉出钢留渣作业,控制出钢终点[C]0.035％～0.050％、出钢[P]≤0.012％;LF用低碱度渣精炼,喂硅钙线,LF精炼后软吹氩15 min;150 mm×150 mm方坯连铸时,采用全保护自动控制浇铸和结晶器、铸坯凝固末端电磁搅拌,使所生产的H11Mn2SiA焊线钢(％:0.06～6.09C、0.82～1.00Si、1.45～1.70Mn)的平均氧含量为20×10^-6,Φ5.5 mm盘条不经热处理可直接冷拔至Φ1.0 mm不断丝。

关键词: H11Mn2SiA焊线钢, Consteel EAF, LF氧含量

Abstract: With using 60% hot metal + quality scrap charge,Consteel EAF eccentric bottom tapping operation,con- trolling tapping end [C] 0.035%～0.050% and tapping[P]≤0.012%,LF refining by low basicity slag,feeding silicon wire, soft blown argon for 15 min after LF refining and fully shielding auto control casting 150 mmx150 mm bilet in whole period, the average oxygen content in steel H11Mn2SiA(0.06~0.09C,0.82～1.00Si,1.45~1.70Mn)for welding wire was 20×10^-6,of which the Φ5.5 mm wire rods could be direct drawn to φ1.0 mm wire without by heat treatment and no-broken wire occurred.

李洪勇, 柴建铭. 石横特钢65 t Consteel EBT EAF-LF-CC流程生产焊线钢H11Mn2SiA的工艺实践[J]. 特殊钢, 2007, 28(3): 62-63.

Li Hongyong , Chai Jianming. Process Practice for Production of Steel H11Mn2SiA for Welding Wire by 65 t Consteel EBT EAF-LF-CC Flowsheet at Shiheng Steel[J]. Special Steel, 2007, 28(3): 62-63.