Antagonist 发表于 2025-3-25 05:58:14
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Eddy current principles,s, such as ultrasonic, magnetic particle and potential drop techniques, is there is no need for physical contact with the surface of the object being tested. Thus, careful surface preparation is unnecessary (other than the removal of metallic adherents).Redundant 发表于 2025-3-25 16:08:54
http://reply.papertrans.cn/31/3058/305771/305771_24.pngPhagocytes 发表于 2025-3-25 22:52:50
Miscellaneous methods,ttention in the various NDT journals probably because they are so effective there is not much demand for improvement. An important exception is the AC potential drop method, which has undergone rapid development in recent years in view of its ability to provide accurate assessments of surface cracks in metals.relieve 发表于 2025-3-26 04:03:29
Integrated and Collaborative Care, end of a diametrical beam or on a cylinder which rotates by electrical propulsion around the tube axis and follows a helical path as it progresses through the tube in a corkscrew manner. This device can also be used to test for surface defects in fastener holes such as those located in aircraft bodies (Figure 6.1).阻塞 发表于 2025-3-26 04:39:03
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Fat Taxes, Bans, and Discrimination,Although this book deals specifically with electrical and magnetic methods of testing materials, the subject-matter covered forms part of the wider field of non-destructive testing (NDT), briefly discussed in this chapter. It is worthwhile to consider the general scope of NDT before examining specific methods.压倒性胜利 发表于 2025-3-26 14:44:23
Introduction,Although this book deals specifically with electrical and magnetic methods of testing materials, the subject-matter covered forms part of the wider field of non-destructive testing (NDT), briefly discussed in this chapter. It is worthwhile to consider the general scope of NDT before examining specific methods.modest 发表于 2025-3-26 19:22:45
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