吊斗铲拱形梁与斗体连接处开裂焊接修复工艺  

Welding repair technology of cracking at the connection between bucket shovel arch beam and bucket body

作　　者：方立强 FANG Liqiang(Equipment Repair Center,China Energy Group Zhunge'er Energy Co.,Ltd.,Ordos 010300,China)

机构地区：[1]国能准能集团有限责任公司设备维修中心,内蒙古鄂尔多斯010300

出　　处：《露天采矿技术》2023年第1期119-121,共3页Opencast Mining Technology

摘　　要：为了有效解决比塞洛斯8750-65型吊斗铲铲斗拱形梁与斗体连接处在维修后较短时间内发生焊缝重新开裂的现象,分析了铲斗拱形梁与斗体连接处开裂原因,从合金化学成分、力学性能出发制定焊接工艺,介绍了裂纹修复焊修过程及检修后吊斗铲的使用情况。结果表明:该焊修工艺可以有效减少焊接应力,减少因焊接应力导致的开裂现象。In order to effectively solve the cracking problem of the connection between the bucket arch beam and the bucket body of biseros 8750-65 bucket shovel, the article analyzes the cracking causes of the connection between the bucket arch beam and the bucket body, formulates the welding technology based on the chemical composition and mechanical properties of the alloy, and describes the process of crack repair welding and the use of the bucket shovel after maintenance. The results show that the welding repair technology can effectively reduce the welding stress and reduce the cracking caused by welding stress.

关 键 词：铲斗 开裂原因 焊接工艺 热处理 裂纹修复 

分 类 号：TD422.23[矿业工程—矿山机电]