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本文首先介绍了采用超声波水浸探伤方法对铝合金空心圆铸锭内部质量检验的必要性和可能性。详细阐述了小角度纵波脉冲反射法的原理、特点及工艺参数的选择原则,并介绍了试验实际效果及缺陷定性的探伤经验。
This paper firstly introduces the necessity and possibility of testing the internal quality of aluminum alloy hollow ingot by using ultrasonic water immersion testing method. The principles, characteristics and selection of process parameters of small-angle P-wave pulse reflection method are expounded in detail. The actual test results and flaw detection experience are introduced.