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介绍用超声波衰减(多次反射法)检查稀土球墨铸铁传动齿轮的内部缺陷。按照底波衰减程度,建立“缺陷——底波”分类等级以及相应的产品验收标准。
Introduction Use ultrasonic attenuation (multiple reflection method) to check the internal defects of rare earth ductile iron gear. In accordance with the degree of attenuation of the bottom wave, the establishment of “defects - bottom wave” classification level and the corresponding product acceptance criteria.