百万核电末级动叶片钎焊国产化技术研究  

Research on Brazing Localization Technology for Last Stage Blades of 1000 MW Nuclear Steam Turbine

作　　者：段中旭[1] 韩志双[1] DUAN Zhongxu;HAN Zhishuang(Harbin Turbine Company Limited,Harbin 150046,China)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《机械工程师》2018年第2期170-172,共3页Mechanical Engineer

摘　　要：核电汽轮机是中温中压机组,末级叶片水蚀严重,在汽轮机制造过程中,末级动叶片的防水蚀工作非常重要,末级叶片需要钎焊的合金片长度较长、叶片型线较大角度弯扭,给叶片的钎焊工作带来较大困难,通过研究改进了钎焊的工艺,重新设计辅助工装等,保证了叶片钎焊的质量,提高了工作效率。As an intermediate-temperature and intermediate-pressure unit,nuclear steam turbine may be confronted with serious erosion in its last stage blades.Therefore,erosion protection shall be considered significantly in the manufacture of steam turbine.The final blade requires a longer length of brazing alloy.There is a large angle twist in the blade profile.This brings great difficulties to the brazing work of the blades.In this paper,the brazing process is improved and the auxiliary tooling is redesigned to ensure the quality of the brazing and improve the working efficiency.

关 键 词：核电末级动叶片 钎焊 工艺 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程] TM623[电气工程—电力系统及自动化]