SU102537A1 - The method of magnetic flaw detection - Google Patents
The method of magnetic flaw detectionInfo
- Publication number
- SU102537A1 SU102537A1 SU451649A SU451649A SU102537A1 SU 102537 A1 SU102537 A1 SU 102537A1 SU 451649 A SU451649 A SU 451649A SU 451649 A SU451649 A SU 451649A SU 102537 A1 SU102537 A1 SU 102537A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- flaw detection
- magnetic
- magnetic flaw
- product
- defects
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
Изобретение относитс Е способам магнитной дефектоскопии металлов путем наыагничпвани исследуемого издели и последующего обнаружени магнитных потоков рассе ни , возникающих в местах расположени дефектов.The invention relates to methods for magnetic flaw detection of metals by detecting the product under investigation and subsequently detecting the magnetic scattering fluxes that occur at the locations of the defects.
В известных способах магнитной дефектоскопии дл обнаружени магнитных потоков рассе ни используетс магнитотвердьш материал, движущийс над изделием и намагничивающийс при наличии дефектов в изделии. Наличие воздушного зазора между изделием и магнитным материалом снижает точность и чувствительность контрол .In known magnetic flaw detection methods, magnetic hard material is used to detect magnetic flux scattering, moving over the product and magnetizing in the presence of defects in the product. The presence of an air gap between the product and the magnetic material reduces the accuracy and sensitivity of the control.
Дл устраненн указанного недостатка предлагаетс , согласно изобретению, магпито-твердый матернал укладывать непосредственно на поверхности контролируемого издели . При этом магнитный материал намагничиваетс именно в тех местах , где расположены потоки рассе ни . Отсутствие воздугнного зазора между новерхностью издели и магнито-твердым материалом позвол ет получить намагничивание последнего при незначительной интенсивностн потоков рассе ни . Таким образом, создаетс возможность обнаружить незначительные по величине дефекты или дефекты, расположенные глубоко в толще мета.1ла издели .To remedy this drawback, according to the invention, the magpite-hard material is placed directly on the surface of the test item. In this case, the magnetic material is magnetized exactly in those places where the scattered flows are located. The absence of an air gap between the surface of the product and the magnetically solid material makes it possible to obtain a magnetization of the latter with an insignificant intensity of the scattering fluxes. Thus, it is possible to detect minor defects or defects located deep in the thickness of the meta product.
Намагниченный таким образом магнитный матернал исследуетс затем с помощью электромагнитного преобразовател , усилите.т и электрического индикатора .The magnetic material magnetized in this way is then investigated with the aid of an electromagnetic converter, amplifiers and an electric indicator.
Нредмет изобретени Nredmet of the invention
Способ магнитной дефектоскопии металлов , основанный на записи магнитных потоков рассе ни , возникающих в местах расположени дефектов, на магнитотвсрдый материал с последующим воснроизведением полученной заннси с помощью электромагнитного преобразовател , о т л и чающийс тем, что, с целью повышенн ч вствительности и точности контрол , магннто-твердый материал располагаетс непосредственно на поверхности исследуемого металла.The method of magnetic flaw detection of metals, based on recording the magnetic fluxes of scattering occurring at the locations of defects, on the magnetic material, followed by reproducing the obtained transmission using an electromagnetic transducer, so that, in order to improve the accuracy and accuracy of control, The magnetically hard material is located directly on the surface of the metal under study.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU451649A SU102537A1 (en) | 1952-07-10 | 1952-07-10 | The method of magnetic flaw detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU451649A SU102537A1 (en) | 1952-07-10 | 1952-07-10 | The method of magnetic flaw detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU102537A1 true SU102537A1 (en) | 1955-11-30 |
Family
ID=48376247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU451649A SU102537A1 (en) | 1952-07-10 | 1952-07-10 | The method of magnetic flaw detection |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU102537A1 (en) |
-
1952
- 1952-07-10 SU SU451649A patent/SU102537A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100671630B1 (en) | On-line flaw detection method of magnetic leak detector and strip of magnetic flaw detector | |
| GB1567600A (en) | Lipe line inspection equipment | |
| JP4804006B2 (en) | Flaw detection probe and flaw detection apparatus | |
| RU2442151C2 (en) | Method for subsurface flaw detection in ferromagnetic objects | |
| GB1056765A (en) | A magnetic crack detection device for examining elongated objects such as ropes, rodsand steel pipes | |
| SU102537A1 (en) | The method of magnetic flaw detection | |
| JPH0711508B2 (en) | Leakage magnetic flux flaw detection method | |
| US2994032A (en) | Inspection system and method | |
| JPS58218644A (en) | Method and apparatus for testing surface flaw of metallic material | |
| Pavlyuchenko et al. | Testing for defects in pulsed magnetic field transmitted through metal | |
| RU2493561C1 (en) | Eddy current magnetic method of failure detection of ferrous objects | |
| US3430133A (en) | Method of magnetic flaw detection using a recording layer that is heated and cooled in the leakage field of the testpiece | |
| JPS59112257A (en) | Method and device for nondestructive inspection of ferromagnetic material | |
| GB766353A (en) | Improvements in and relating to non-destructive testing of ferromagnetic workpieces | |
| JPS5730943A (en) | Detecting method for defect in ferromagnetic material | |
| JPS6011493Y2 (en) | Electromagnetic induction detection device | |
| SU954868A1 (en) | Method of magnetographic checking of ferromagnetic material articles | |
| US2398488A (en) | Magnetic analysis | |
| SU95205A1 (en) | The method of control of welds magnetic induction flaw detector | |
| Barton et al. | Advanced Nondestructive Testing Methods for Bearing Inspection | |
| JPH02236446A (en) | Method and device for detecting flaw by leaked magnetic flux | |
| RU2566418C1 (en) | Magnetic flaw detection method | |
| RU103926U1 (en) | ELECTROMAGNETIC CONVERTER TO DEFECTOSCOPE | |
| SU151091A1 (en) | Method for detecting defects in articles made of ferromagnetic materials | |
| RU2680857C1 (en) | Wheelset rim magnetic flaw detection device |