公开(公告)号：US20100288052A1

公开(公告)日：2010-11-18

申请号：US12730416

申请日：2010-03-24

申请人： Takeshi Tanaka ,  Haruhiko Asaka ,  Junya Michinishi ,  Keiichiro Miyajima ,  Kazushi Mori

发明人： Takeshi Tanaka ,  Haruhiko Asaka ,  Junya Michinishi ,  Keiichiro Miyajima ,  Kazushi Mori

IPC分类号： G01M13/00

CPC分类号： F01D25/285 ,  F05D2260/94 ,  F05D2270/114 ,  G01M15/14

摘要： The object is to provide a method and device to detect internal defect in the weld overlaid portion of erosion resistant material in the border portion between the blade profile and the shroud of a turbine blade with high accuracy by a static test method for an individual turbine blade applying a resultant pressing force, corresponding to centrifugal force and untwisting force of the turbine blade 10 in operation of the turbine, to the shroud 12 with installing the blade root 18 of the turbine blade 10 to the blade root retainer 20 and applying a force in the direction of centrifugal force on the blade root 18 from outside of the blade root retainer 20 to eliminate backlash between the blade root 18 and blade root retainer 20, retaining securely the shroud 12 on the side opposite to the portion which is applied the pressing force, and implementing simulated test of centrifugal stress in the weld-overlaid portion by applying the resultant pressing force, corresponding to centrifugal force and untwisting force of the turbine blade 10 in operation of the turbine, to the shroud 12.

摘要翻译： 本发明的目的是提供一种方法和装置，用于通过用于单个涡轮机叶片的静态测试方法以高精度检测叶片轮廓和涡轮叶片的护罩之间的边界部分中的耐侵蚀材料的焊接覆盖部分中的内部缺陷 将涡轮机叶片10的叶片根部18安装到叶片根部保持器20上并将施加一个力施加到涡轮机的操作中，将相应于涡轮机叶片10的离心力和解捻力的合力施加到护罩12上 叶片根部18从叶片根部保持器20的外侧离心力的方向，以消除叶片根部18和叶根部保持器20之间的间隙，将护罩12牢固地固定在施加有压力的部分的相反侧 并通过施加对应于离心式的合成压力来实现焊接部分中的离心应力的模拟试验 ce和涡轮机叶片10在涡轮机运行中的解捻力。