ZG42Cr1Mo装取料机机臂补焊工艺  

Repair welding technology of ZG42Cr1Mo arm of loading and taking machine

作　　者：杨永强 张佩君 徐燕 欧阳建国 郑春雷[2] Yang Yongqiang;Zhang Peijun;Xu Yan;Ouyang Jianguo;Zheng Chunlei(Beijing Jingdong Digital Intelligence Industrial Technology Co.,Ltd.,Beijing 100176,China;School of Materials Science and Engineering,Yanshan University,Qinhuangdao 066004,China;Luoyang Ketong Heavy Industry Machinery Co.,Ltd.,Luoyang 471003,China;Juli Sling Co.,Ltd.,Baoding 072550,China)

机构地区：[1]北京京东数智工业科技有限公司,北京100176 [2]燕山大学材料科学与工程学院,河北秦皇岛066004 [3]洛阳科通重工机械有限公司,河南洛阳471003 [4]巨力索具股份有限公司河北省吊索具工程技术研究中心,河北保定072550

出　　处：《金属制品》2022年第2期58-60,共3页Metal Products

摘　　要：中碳调质铸钢ZG42Cr1Mo装取料机机臂变截面处出现贯穿性裂纹,对断裂机臂进行焊接修补,焊前预热温度为320℃,层间温度控制在400℃内,焊接线能量在1 kJ/mm左右,焊接过程中对焊道进行锤击处理,焊后进行600℃去应力退火处理,修补后的零件表面无缺陷并满足使用要求。Penetrating cracks appeared at variable section of ZG42Cr1Mo medium carbon quenched and tempered cast steel arm in loading and taking machine.Welding repair the broken arm,preheating temperature before welding is 320℃,interlayer temperature is controlled within 400℃,and welding heat input is about 1 kJ/mm.The welding bead is hammered during welding process,600℃ stress relief annealing treatment shall be carried out after welding,the repaired parts have no defects on surface and meet use requirements.

关 键 词：ZG42Cr1Mo 中碳调质铸钢 去应力退火 

分 类 号：TG441.2[金属学及工艺—焊接]