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介绍目前企业生产用和取暖用火管锅炉在运行中常出现的锅筒封头管板裂纹的超声波检测 ,为裂纹是否直接挖补修复还是更换封头管板提供依据
This paper introduces the ultrasonic testing of cracks in tube head tube plate which often appear in operation of fire tube boilers used in production and heating. It provides the basis for whether the cracks are directly repaired or replaced by head tube plate