枞树型叶根超声相控阵检测技术研究  

Research on Phased Array Inspectionfor Fir Style Blade Root

作　　者：初希 欧阳权 CHU Xi;OUYANG Quan(China Power Hua Chuang Electricity Technology Research Company Limited,Suzhou215000,China)

机构地区：[1]中电华创电力技术研究有限公司,苏州215000

出　　处：《汽轮机技术》2018年第6期475-477,共3页Turbine Technology

摘　　要：枞树型叶根结构复杂,运行中叶片根部应力较大,在不拆卸的状态下对其进行常规超声检测很难达到检测目的。专门针对枞树型叶根设计制作相应的调试和对比试块,并制订检测工艺。通过对枞树型叶根内外弧缺陷的模拟,提供不同深度、长度的缺陷对比并进行图像和数据分析,对实际检测具有较强的指导作用。Fir styleblade root as a main type of turbine blade roots in power plant has a complex structure.The stress of the blade root in operationis large.It is very difficult to achieve the purpose byusing ultrasonic testing when theblade is not disassembled.According to the fir style blade root,we designed and made the test block to debug and compare.Through the simulation of inner and outer arc defects of the fir style blade root,we can provide defect comparisons of different depths and lengths with data and image analyzing.It has a good guiding effect on practical applications.

关 键 词：枞树型叶根 超声相控阵检测 缺陷模拟 

分 类 号：TG115.28[金属学及工艺—物理冶金]