组合焊修复断裂齿轮轴  

Broken Gear Shaft Repairing by Combined Welding

作　　者：赵巧良[1] 甘伟[1] 胡红钱[1] 赵洪昊 范里洪 陈炜 宋惠国 ZHAO Qiaoliang;GAN Wei;HU Hongqian;ZHAO Honghao;FAN Lihong;CHEN Wei;SONG Huiguo(Zhejiang Industry Polytechnic College,Shaoxing 312000,China;Shaoxing Keqiao Vocational Education Center,Shaoxing 312060,China;Zhejiang LiTie Group,Shaoxing 312000,China)

机构地区：[1]浙江工业职业技术学院,浙江绍兴312000 [2]绍兴市柯桥区职业教育中心,浙江绍兴312060 [3]浙江漓铁集团公司,浙江绍兴312000

出　　处：《热加工工艺》2022年第3期134-136,共3页Hot Working Technology

摘　　要：针对37SiMn2MoV钢齿轮轴断裂的焊接修复问题,采用小尺寸轴头插入轴身的过盈配合,及轴头与轴身的U型坡口锁底对接焊条电弧焊的组合焊修复工艺。分析了37SiMn2MoV钢的焊接难度。通过正确选择焊条类型和接头形式,合理布置过渡层、填充层及盖面层,严控预热、后热及层间温度,实施小线能量施焊,取得了不错的焊接修复效果。For the welding repair of broken 37SiMn2MoV steel gear shaft,the combined welding repair technology of small size shaft head inserted into shaft body with interference fitting and U groove shielded metal arc welding of shaft head and shaft body was used.The welding difficulty of 37SiMn2MoV steel was analyzed,by correctly selecting the type of welding rod and joint form,arranging the transition layer,filling layer and cover layer reasonably,strictly controlling the preheating,post-heating and interlayer temperatures,and carrying out the small line energy welding,good welding repair effect has been obtained.

关 键 词：低合金高强钢 齿轮轴 修复 焊条电弧焊 

分 类 号：TG444.1[金属学及工艺—焊接] TG457.2