BGER60Ti-1焊丝钢拉拔断裂问题分析及改进措施  

Analysis and Improvement Measures for Problem ofDrawing Fracture of BGER60Ti-1 Welding Wire Steel

作　　者：王刚[1] 李学东 赵晓敏[1] 白彬亨 张晓晨 赵家琪 谭晓东[1] Wang Gang;Li Xue-dong;Zhao Xiao-min;Bai Bin-heng;Zhang Xiao-chen;Zhao Jia-qi;Tan Xiao-dong(Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Manufacturing Dept.of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司制造部,内蒙古包头014010

出　　处：《包钢科技》2023年第6期81-84,共4页Science & Technology of Baotou Steel

摘　　要：BGER60Ti-1焊丝钢在生产焊丝过程中出现拉拔断裂,通过对断裂试样进行金相组织分析,发现淡黄色硬质块相是造成焊丝拉拔断裂的直接原因。根据该组织的形成机理得出,淡黄色硬质块相为贝氏体与马氏体的混合组织。文章从轧后控冷角度进行研究,提出延长盘条出保温罩时间、增加保温罩的保温能力等措施,改进后的基体组织未出现硬质块相,解决了BGER60Ti-1焊丝钢断丝问题。During the process of producing welding wire with BGER60Ti-1 welding wire steel,there is drawing fracture and faint yellow hard block phase is found to be direct cause through metallographic analysis of fracture sample.It is obtained according to formation mechanism of the microstructure that the faint yellow hard block phase is mixture of bainite and martensite.In the paper,such measures as extending holding time of wire rod and improving heat-retaining capacity of temperature holding hood are proposed based on studying from the perspective of controlled cooling after rolling.There is not any hard block phase in the improved matrix structure so that the problem of fracture of wire for BGER60Ti-1 welding wire steel is solved.

关 键 词：焊丝 BGER60Ti-1焊丝钢 金相组织 拉拔断裂 

分 类 号：TG113[金属学及工艺—物理冶金]