焊接用H08E盘条工艺开发  

Process development of H08E wire rod for welding

作　　者：张军利 朱传清 来庆斌 张年华 王超[1] Zhang Juni;Zhu Chuanqing;Lai Qingbin;Zhang Nianhua;Wang Chao(Rizhao Steel Holding Group Co.,Ltd.,Rizhao 276800,China)

机构地区：[1]日照钢铁控股集团有限公司,山东日照276800

出　　处：《金属制品》2024年第4期29-31,共3页Metal Products

摘　　要：钢水进LF炉精炼处理,可有效脱硫及精确控制成分,但精炼过程增硅导致钢水硅质量分数超过标准要求。通过严格控制转炉出钢挡渣,不加含硅合金、脱氧剂,LF炉精炼周期控制在32min以内,精炼黄白渣(FeO)+(MnO)质量分数0.75%~1.5%,精炼过程钢水增硅不大于0.008%,盘条硅质量分数符合内控要求。高线吐丝温度930~950℃、辊道速度不大于0.3m/s,并加盖保温罩保温缓冷,开发生产的H08E盘条化学成分、力学性能稳定。Molten steel is refined in LF furnace,which can effectively desulfurize and accurately control composition,butmolten steel silicon mass fraction due to silicon addition in refining process exceeds standard requirements.By strictly controlling tapping slag of converter,without silicon containing alloy and deoxidizer,refining cycle of LF furnace is controlled within 32 min,mass fraction of refined yellow white slag(FeO)+(MnO)is 0.75%~1.5%,silicon increase in molten steel during refining is not more than 0.008%,and silicon mass fraction of wire rod meets internal control requirements.High-speed wire rod rolling mill spinning temperature is 930~950℃,roller speed is not greater than 0.3 m/s,and it is covered with an insulation cover for insulation and slow cooling.Chemical composition and mechanical properties of HO8E wire rod developed and produced are stable.

关 键 词：H08E 焊接用钢 LF炉 化学成分 吐丝温度 力学性能 

分 类 号：TG423[金属学及工艺—焊接]