工程机械用钢Q960E高强钢焊接工艺研究  

Welding Process Study of Q960E High Strength Steel for Engineering Machinery

作　　者：樊新波[1] 王桂红 王志辉 易传佩[2] FAN Xin-bo;WANG Gui-hong;WANG Zhi-hui;YI Chuan-pei(Hunan Industry Polytechnic,Changsha 410208,China;Hunan Mechanical&Electrical Polytechnic,Changsha 410151,China)

机构地区：[1]湖南工业职业技术学院,湖南长沙410208 [2]湖南机电职业技术学院,湖南长沙410151

出　　处：《机械工程与自动化》2022年第4期131-132,134,共3页Mechanical Engineering & Automation

基　　金：湖南省教育厅科学研究项目(19C0620)。

摘　　要：为研究Q960E钢材的焊接性能和配套焊丝性能,通过斜Y坡口焊接裂纹试验,得知预热120℃和150℃条件下焊接焊缝表面无裂纹,在此基础上进行焊接工艺评定,选择三种焊丝材料对Q960E钢板进行CO_(2)焊焊接工艺试验,评定在不同焊接热输入下钢板的焊接性。试验研究结果表明:钢板在8 kJ/cm~10 kJ/cm焊接热输入下,焊接接头的综合性能良好,满足工程中焊接规范的要求。In order to study the welding performance of Q960E steel and the performance of matching welding wire,through the inclined Y groove welding crack test,it is known that there is no crack on the surface of the welding seam under the preheating conditions of 120℃and 150℃.On this basis,the welding process evaluation is carried out,and three kinds of welding wire materials are selected to carry out the CO_(2) welding process test of the Q960E steel plate,and the weldability of the steel plate under different welding heat input is evaluated.The experimental research results show that under the welding heat input from 8 kJ/cm to 10 kJ/cm,the comprehensive performance of the welded joint is good,which meets the requirements of the welding specification in the project.

关 键 词：焊接裂纹 焊接工艺 Q960E钢 力学性能 

分 类 号：TG44[金属学及工艺—焊接] TG142[一般工业技术—材料科学与工程]