基于盲孔法的水轮机转轮表面残余应力试验研究  

Experimental Study on Surface Residual Stress of Hydraulic Turbine Runner Based on Blind Hole Method

作　　者：许闯 王家胜 程胜金 XU Chuang;WANG Jiasheng;CHENG Shengjin(Engineering Training Center of North China University of Water Resources and Hydropower,Zhengzhou 450000;Hydraulic Metal Structure Quality Inspection and Testing Center of the Ministry of Water Resources,Zhengzhou 450000)

机构地区：[1]华北水利水电大学工程训练中心,郑州450000 [2]水利部水工金属结构质量检验测试中心,郑州450000

出　　处：《现代制造技术与装备》2022年第3期42-44,48,共4页Modern Manufacturing Technology and Equipment

基　　金：河南省高等学校重点科研项目“在役水工金属结构安全评估”(5001-51024)。

摘　　要：利用YC-Ⅲ型应力测量仪对某电站水轮机转轮热处理前后残余应力测试,并对其安全可靠性进行分析。试验结果表明,该水轮机转轮满足工程需要,经过热处理之后的转轮残余应力最大主应力大幅度降低,并呈现平缓趋势。该研究成果为水轮机转轮的后续工作提供了检测依据。YC-Ⅲstress measuring instrument is used to test the residual stress of turbine runner before and after heat treatment,and its safety and reliability are analyzed.The test results show that the turbine runner meets the engineering needs,the maximum residual stress and principal stress of the runner after heat treatment are greatly reduced,and show a gentle trend.The research results provide a detection basis for the follow-up work of hydraulic turbine runner.

关 键 词：残余应力 水轮机 盲孔法 

分 类 号：TV734.1[水利工程—水利水电工程] TG156[金属学及工艺—热处理]