File:Wet magnetic particle testing on a pipeline.jpg
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[edit]DescriptionWet magnetic particle testing on a pipeline.jpg |
English: A technician performs magnetic-particle inspection (MPI) on a pipeline to check for stress corrosion cracking. The technique used here involves black particles in a wet suspension sprayed onto a surface prepared with white contrast paint, a technique known in the trade as "black and white" MPI. In the left picture the technician is holding a magnetic yoke (horseshoe-type electromagnet) against the pipe while spraying the liquid onto the magnetized area between the poles. In the right picture the technician watches the liquid flow while checking for indications of cracking, which would appear as small black lines. No indications of cracking appear in this picture; the only marks are the 'footprints' of the magnetic yoke and drip marks. In these pictures, the pipe is sitting on a steel support in a shop after being removed from service for testing. |
Date | |
Source | Own work (Original text: self-made) |
Author |
Davidmack at English Wikipedia |
Permission (Reusing this file) |
Licensed under the GFDL by the author; Released under the GNU Free Documentation License. |
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[edit]This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. | |
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http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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[edit]The original description page was here. All following user names refer to en.wikipedia.
Date/Time | Dimensions | User | Comment |
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2012-07-10 16:57 | 2324×1624× (596586 bytes) | Davidmack | {{Information |Description = A technician performs [[magnetic-particle inspection]] (MPI) on a [[Pipeline transport|pipeline]] to check for [[stress corrosion cracking]]. The technique used here involves black particles in a wet suspension sprayed onto... |
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current | 11:54, 21 February 2016 | 2,324 × 1,624 (583 KB) | OlEnglish (talk | contribs) | Transferred from en.wikipedia |
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