铅箔增感屏在钛合金增材产品射线检测中的增感效果  

Enhancing effect of lead foil sensitizing screen in radiographic testing of titanium alloy additive products

作　　者：史洪源[1] 张嘉毅 李吉利 周鹏 李杰[1] SHI Hongyuan;ZHANG Jiayi;LI Jili;ZHOU Peng;LI Jie(Xi′an Aeronautical Polytechnic Institute,Xi′an 710089,China;Shaanxi Special Equipment Inspection and Testing Institute,Xi′an 710054,China)

机构地区：[1]西安航空职业技术学院,西安710089 [2]陕西省特种设备检验检测研究院,西安710054

出　　处：《无损检测》2024年第12期100-104,共5页Nondestructive Testing

基　　金：陕西高校青年创新团队(2019-73);2023年度陕西省教育厅科研计划项目(23JP074);西安航空职业技术学院2020年度科研项目(22XHZK-03)。

摘　　要：为理清现行各标准对钛合金产品增感屏的使用要求,对钛合金增材制造阶梯试块实施不同条件的射线检测,采用改变透照管电压、使用单增感屏、使用双增感屏、不使用增感屏等方法,得到不同增感条件下的底片黑度。试验结果表明,管电压不大于80 kV时,可以不使用前屏、后屏,若背散射较强,可以使用后屏或在暗袋后加铅板吸收背散射;当管电压为80~100 kV时,可以不使用前屏,应考虑使用后屏;当管电压不小于100 kV时,使用前后屏增感方式。In order to clarify the requirements of current standards for the use of titanium alloy product intensifying screens,different conditions of radiographic testing were carried out on titanium alloy additive manufacturing step test blocks.By changing the voltage of the transmission tube,using single intensifying screens,double intensifying screens,or not using intensifying screens,the blackness of the film under different intensifying conditions was obtained.The results show that when the tube voltage is less than or equal to 80 kV,the front and rear screens can be omitted.If the backscattering is strong,the rear screen can be used or a lead plate can be added behind the dark bag to absorb the backscattering;When the tube voltage is greater than 80 kV and less than or equal to 100 kV,the front screen may not be used and consideration should be given to using the rear screen;When the tube voltage is greater than or equal to 100 kV,use the front and rear screen sensitization method.

关 键 词：钛合金 增感屏 射线检测 增感效果 

分 类 号：TG115.28[金属学及工艺—物理冶金]