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电子束焊活塞顶圈毛坯对无损检测技术提出了多方面的要求。研究及实际应用表明：采用超声波五探头水浸检测法，可对活塞顶圈毛坯内冷油道位置、镶环结合质量及薄弱区域的铸造缺陷进行全面检测，从而保证顶圈毛坯质量。
Electron beam welding piston ring top blank on the nondestructive testing technology made a wide range of requirements. The research and practical application show that ultrasonic probe probe flooding test can fully detect the position of the internal cooling oil channel in the piston top ring blank, the bonding quality of the ring and the casting defects in the weak area so as to ensure the quality of the top ring blank.