GB/T 20935.3-2009
AbolishedMethod of electromagnetic acoustic inspection for metal materials - Part 3: Standard test method for ultrasonic surface examinations using electromagnetic acoustic transducer(EMAT)techniques
金属材料电磁超声检验方法 第3部分：利用电磁超声换能器技术进行超声表面检测的方法
Application Summary AI generated
This standard specifies the method for detecting surface and near-surface defects in metal materials using electromagnetic acoustic transducer (EMAT) techniques, which do not require direct contact or couplant. It is applied in the metallurgy and manufacturing industries for quality control of metal products such as plates, pipes, and bars, particularly in automated or high-temperature testing environments where conventional ultrasonic methods are impractical.
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