摘要
为了提高B87MnQL盘条电阻对焊焊接(RBW)性能,以B87MnQL盘条为研究材料,运用优化的焊接参数进行电阻对焊,对焊接接头进行室温拉伸试验及多道次拉拔、热镀锌以及稳定化处理。借助光学显微镜和扫描电镜,分析不同的焊后热处理工艺时焊接接头组织的变化情况,探讨B87MnQL盘条焊接区域的断口形貌,研究B87MnQL盘条通过拉拔、热镀锌和稳定化处理的力学性能。结果显示,B87MnQL镀锌钢丝产品的性能完全符合国家标准的要求。
In order to improve the properties of RBW joints with B87MnQL wire rod steel,using the B87MnQL steel wire rod as the test material to carry out the RBW test by optimized parameters.And the tensile test at room temperature,multi-pass drawing,hot dip galvanizing and stabilizing treatment are carried out on welded joints.By OM and SEM,the change of microstructure of welded joints with different postweld heat treatments is analyzed,the appearance of fracture of welding area of B87MnQL steel wire rod is discussed,and the mechanical properties of B87MnQL after drawing,hot dip galvanizing and stabilizing treatment are studied.The result shows that the properties of B87MnQL galvanized steel wire completely meet the requirements of national standards.
作者
李养良
李海洲
张楚
张德勤
都学飞
潘东
LI Yangling;LI Haizhou;ZHANG Chu;ZHANG Deqin;DU Xuefei;PAN Dong(Jiujiang University,Jiujiang 332005,China)
出处
《电焊机》
2017年第12期90-93,共4页
Electric Welding Machine
基金
九江学院校级科研项目(2013ZD07
2014KJYB018)
江西省教育厅科技落地计划项目(KJLD14091)
江西省科技计划项目(20133BBE50031)
江西省"卓越工程师教育培养计划"实施成果(赣财教2011[244]号)
关键词
B87MnQL盘条
电阻对焊(RBW)
焊后热处理
力学性能
国家标准
B87MnQL steel wire rod
resistance butt welding (RBW)
postweld heat treatment
mechanical properties
national standard
