发明名称 |
Tubular products inspection |
摘要 |
An inspection station and process for pipe or other ferromagnetic articles utilizes a generally straight flux field amplifier made of a multi-stranded cable surrounded by non-conducting resin, for inducing transverse lines of magnetic force. The flux field amplifier is surrounded by a coil which is also energized to make longitudinal lines of force; the two types of lines of force are vectored. The pipe or other ferromagnetic article is sprayed with UV-sensitive magnetic particles in a more or less conventional manner to display the vectored lines of force together with any flaws in the metal. The cable core of the flux field amplifier does not need a cooling system and is able to last longer than conventional solid cores.
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申请公布号 |
US6246235(B1) |
申请公布日期 |
2001.06.12 |
申请号 |
US19980064334 |
申请日期 |
1998.04.22 |
申请人 |
USX CORPORATION |
发明人 |
LOWDEN DONALD E.;SANDERS KENNETH W. |
分类号 |
G01N27/84;(IPC1-7):G01N27/84;G01N27/72;G01R33/12 |
主分类号 |
G01N27/84 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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