The application of MMMT in weld inspection is investigated and compared with the result of X-ray inspection in the paper.
研究了磁记忆检测技术在焊缝检测中的应用情况，并对比X射线的检测结果，分析了该技术在焊缝无损检测中的应用可行性。
A typical signal was found in the position of welding scar of a liquefied petroleum gas (LPG) tank by metal magnetic memory testing (MMMT).
采用磁记忆检测发现液化石油气储罐焊疤部位存在较强的磁记忆信号。
The amplitude and gradient of MMMT signals not only relied on the average stress of the shell, but also relied on the local stress concentration.
由此证明磁记忆信号的幅度和梯度既与材料所处的整体应力有关，也与该部位的局部应力集中度有关。
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