耐热不锈钢焊接返修裂纹的原因分析和解决措施  

Reason analysis and countermeasures on heat-resistance stainless steel welding repair cracks

作　　者：古朋赞 盛水平[2] 林文贤 邢璐[2] 

机构地区：[1]温岭市钱江化工机械有限公司,浙江温岭317500 [2]杭州市特种设备检测院,浙江杭州310003

出　　处：《电焊机》2013年第10期75-77,共3页Electric Welding Machine

基　　金：国家科技支撑计划资助项目(2011BAK06B02);国家质检公益性行业科研专项资助项目(201010028)

摘　　要：分析了耐热不锈钢返修过程中容易出现裂纹的原因,在焊前清理、焊接热输入、层间温度、焊缝成形系数、控制熔合比及锤击去除应力等方面采取措施,避免了焊接裂纹的产生,为耐热不锈钢的焊条电弧焊及其返修积累了实际经验。The reason of cracks which appears during and/or after heat-resistance stainless steel welding repair was analyzed,the practical experience on heat-resistance stainless steel arc-weld and welding repair was accumulated.The weld crack is avoided by a lot of measures such as pre-weld cleaning,welding heat input,layer temperature,the factors of welding seam form,penetration ratio control,hammer to remove stress.

关 键 词：耐热不锈钢 焊接返修 裂纹 原因分析 

分 类 号：TG441.7[金属学及工艺—焊接]