ZG230-450与Q345B钢焊接工艺及缺陷预防措施  

Welding Process Analysis and Defects Prevention Measures of ZG230-450 and Q345B Steel

作　　者：石南辉 张立志 焦自权 刘科明[1] 贾广攀 王帅帅[1] SHI Nanhui;ZHANG Lizhi;JIAO Ziquan;LIU Keming;JIA Guangpan;WANG Shuaishuai(Engineer Training Center,Qinzhou University,Qinzhou 535011,China;School of Mechanical and Marine Engineering,Qinzhou University,Qinzhou 535011,China)

机构地区：[1]钦州学院工程训练中心,广西钦州535011 [2]钦州学院机械与船舶海洋工程学院,广西钦州535011

出　　处：《铸造技术》2018年第9期2065-2067,共3页Foundry Technology

基　　金：2017年钦州学院引进高层次人才第二批科研启动项目(项目编号:2017KYQD212);钦州市"互联网+先进制造"工程技术研究中心开放课题基金资助(项目编号:2017QGKZ02)

摘　　要：对碳素铸钢ZG230-450、低合金高强度结构钢Q345B的焊接性进行分析,指出此异种钢焊接难点,提出了此异种钢焊条电弧焊和CO_2气体保护焊两种焊接工艺要点及相应的工艺参数,并对异种钢焊接产生的裂纹缺陷原因进行分析,提出了焊接裂纹缺陷的预防措施。By analyzing the weldability of ZG 230-450 carbon cast steel and Q345B low alloy high strength structural steel, The weld difficulty of that dissimilar steel is pointed out, The main points and corresponding parameters of two welding processes of dissimilar steel are welding and CO2 gas shielded arc welding are put forward, The reason of crack defect in dissimilar steel welding is analyzed, The preventive measures of welding crack defects are put forward.

关 键 词：ZG230-450钢 Q345钢 焊接工艺 焊接缺陷 焊接裂纹 

分 类 号：TG441.7[金属学及工艺—焊接]