汽轮机低压末级叶片现场焊接修复工艺技术研究  

Research on Field Welding Repair Technology of Turbine Low Pressure Final Stage Blade

作　　者：邓华裕 Deng Huayu(Guangdong energy Mao ming Thermal Power Plant Co.,Ltd,Mao ming 525000,China)

机构地区：[1]广东能源茂名热电厂有限公司,广东茂名

出　　处：《云南化工》2023年第3期124-126,共3页Yunnan Chemical Technology

基　　金：2022年茂名市科技计划立项项目(项目编号:2022005)。

摘　　要：针对汽轮机低压末级叶片出现的机械损伤问题,采用奥氏体型焊材、手工钨极氩弧焊(GTAW)方法进行了消除处理,成功地对损伤叶片进行了现场焊接修复,并对焊接接头进行机械打磨,恢复叶片损伤部位的型线。该工艺具有一定的技术、经济价值,具有推广应用前景。Aiming at the mechanical damage problem of the low-pressure final stage blade of a steam turbine,the austenitic type welding material and manual tungsten argon arc welding(GTAW)method were used to eliminate the damage.The damaged blade was successfully repaired by welding,and the welded joint was mechanically polished to restore the profile of the damaged blade.The process has certain technical and economic value,and has the prospect of popularization and application.

关 键 词：汽轮机 末级叶片 焊接修复 工艺 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]