大规格SWRH82B盘条性能研究与优化措施  

Performance research and optimized measure of large size SWRH82B wire rod

作　　者：李明[1] 赵自义[1] 王克玉[1] 孙汝林[1] 张全刚[1] 刘松[1] 

机构地区：[1]安阳钢铁股份有限公司,河南安阳455004

出　　处：《金属制品》2011年第3期55-58,共4页Metal Products

摘　　要：针对SWRH82B盘条存在抗拉强度下限偏低,同卷、同圈抗拉强度波动大的问题,从加热温度及冷却工艺着手,对影响盘条抗拉强度因素进行分析,最终确定合适的生产工艺:加热温度(1 020±30)℃、开轧温度(970±20)℃、吐丝温度(880±20)℃、辊道入口速度43 m/s及斯太尔摩线快速冷却。采用新工艺生产的SWRH82B盘条平均抗拉强度达到1 190 MPa,同圈与同卷抗拉强度标准偏差分别为4.5 MPa和6.2 MPa,较原工艺分别下降7.9MPa和10.0 MPa;断面收缩率均在35%以上,盘条力学性能达到了国内先进钢厂的水平。According to SWRH82B wire rod＇s problems like low minimum tensile strength, and tensile strength with circle or roll having big fluctuation, then to analyze factors effected by wire rod tensile strength and finally decide the suitable productive technology： heating temperature （ 1 020 ± 30） ℃, opening rolling temperature （970 -20 ） ℃, spinning temperature （880 ± 20） ℃, roller entrance speed 43 m/s and Stelmor mill line rapid cooling. SWRH82B wire rod with new technology average tensile stress reached 1 190 MPa, tensile strength standard bias with circle and roll are 4.5 MPa and 6.2 MPa respectively, decreased by 7.9 MPa and 10.0 MPa compared with previous technology; reduction of area is above 35% , chanical property achieved the domestic advanced level.

关 键 词：SWRH82B盘条 抗拉强度 加热温度 开轧温度 辊道入口速度 

分 类 号：TG335.63[金属学及工艺—金属压力加工]