ER70S-6M高锰气保焊丝钢盘条生产工艺优化  

Production process optimization of ER70S-6M high manganese gas shielded welding wire steel wire rod

作　　者：卢伟永 Lu Weiyong(HBIS Group Xuansteel Company,Xuanhua 075100,China)

机构地区：[1]河钢集团宣钢公司,河北宣化075100

出　　处：《金属制品》2023年第4期17-19,共3页Metal Products

摘　　要：通过分析影响焊丝钢盘条组织和性能的因素,按照增大原始奥氏体晶粒尺寸、提高盘条吐丝后缓冷效果的控制思路优化生产工艺,高锰焊丝钢盘条抗拉强度平均降低15 MPa,铁素体晶粒度由8.5级降至7级,且未出现贝氏体等异常组织,较好满足了用户使用需求。By analyzing the factors affecting microstructure and properties of welding wire steel wire rod,the production process was optimized according to control idea of increasing original austenite grain size and improving slow cooling effect of wire rod after wire spinning.Tensile strength of high manganese wire rod was reduced 15 MPa average,Ferrite grain size was reduced from 8.5 to 7,and there was no abnormal structure such as Bainite,which better met customers needs.

关 键 词：ER70S-6M 气保焊丝钢 晶粒度 辊道速度 贝氏体 抗拉强度 

分 类 号：TG142.1[一般工业技术—材料科学与工程]