高温检测由于受胶片对温度承受力的限制 ,一直是射线检测中的禁区。我单位曾受锦西化肥厂委托 ,对一台氨反应器管进行在役检测。该设备工作温度为 70 0℃ ,周围环境温度 (射线探伤操作温度 )为 80℃ ,使用常规方法无法检测。经多次模拟试验 ,自制了冷却夹具 ,实现了该设备在高 High temperature testing due to the film on the temperature tolerance limits, has been the ray detection of the restricted area. My unit has been commissioned by Jinxi Fertilizer Plant, an ammonia reactor tube in service. The equipment operating temperature is 70 0 ℃, the ambient temperature (ray detection operating temperature) is 80 ℃, can not be detected using conventional methods. After many simulation tests, self-made cooling fixture, to achieve the high equipment