A method and an apparatus for flaw detection
The method and apparatus for surface flaw detection of workpiece feature that before detection, a layer of powder is adsorbed to really cover the surface of workpiece to be detected and a high-frequency induction heating method is used to heat the surface layer of the workpiece, whose surficial temp...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The method and apparatus for surface flaw detection of workpiece feature that before detection, a layer of powder is adsorbed to really cover the surface of workpiece to be detected and a high-frequency induction heating method is used to heat the surface layer of the workpiece, whose surficial temp. is measured by radiation thermometer. It is proved that there is a flaw at the part with different temp. Covering powder on its surface is aimed at obtaining uniform surface radiation factor. |
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