SU930099A1 - Method of checking ferromagntic material article mechanical properties - Google Patents
Method of checking ferromagntic material article mechanical properties Download PDFInfo
- Publication number
- SU930099A1 SU930099A1 SU803210707A SU3210707A SU930099A1 SU 930099 A1 SU930099 A1 SU 930099A1 SU 803210707 A SU803210707 A SU 803210707A SU 3210707 A SU3210707 A SU 3210707A SU 930099 A1 SU930099 A1 SU 930099A1
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- SU
- USSR - Soviet Union
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- product
- magnetic field
- mechanical properties
- ferromagntic
- checking
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
II
Изобретение относитс к измерительной технике и может быть нспользовано при нераз рушающем контроле механических свойств ферромагнитных изделий.The invention relates to a measurement technique and can be used for non-destructive testing of the mechanical properties of ferromagnetic products.
Известен способ контрол качества термической обработки изделий из ферромагнитных материалов, заключающийс в том, что изделие намагничивают посто нным магнитным полем и дополнительно воздействуют переменным магнитным полем определенной величины , а контролируемые параметры определ ют по величине остаточной мапштиой индукции 1.The method of quality control of heat treatment of products made of ferromagnetic materials is known, which means that the product is magnetized with a constant magnetic field and additionally affected by a variable magnetic field of a certain size, and the controlled parameters are determined by the magnitude of the residual induction 1.
Недостатком известного способа вл етс необходимость предварительного выбора величины переменного магнитного пол дл получени однозначной зависимости между нзмер емой величиной и параметрами пол возбуждени , котора различна дл разных марок материала и типоразмеров.A disadvantage of the known method is the necessity of preselecting the value of a variable magnetic field in order to obtain an unambiguous relationship between the measured value and the parameters of the excitation field, which is different for different grades of material and frame sizes.
Наиболее близким по технической сущности к изобретению вл етс способ контрол механических свойств изделий из ферромагнитных материалов, заключающийс в том, чтоThe closest in technical essence to the invention is a method of controlling the mechanical properties of products made of ferromagnetic materials, namely,
изделие намагничивают импульсным магнитным полем, превышающим величину коэрцитивной силы материала и направленным нормально поверхности издели , и считывают величину напр женности магнитного пол остаточной намагниченности 2.the product is magnetized by a pulsed magnetic field exceeding the magnitude of the coercive force of the material and directed normally to the surface of the product, and the magnitude of the magnetic field of the residual magnetization 2 is read.
После окончани релаксационных процессов в изделии через обмотку намагничивани , пропускают импульсный ток обратного на10 правлени , величина которого меньше намагничивающего тока. Выбор величины этого тока в зависимости от марок материала и типоразмеров изделий затруднен, поэтому достоверность контрол известным способом недо15 статочна.After the completion of relaxation processes in the product through the magnetizing winding, a pulse current of the opposite direction is passed, the value of which is less than the magnetizing current. The choice of the magnitude of this current depending on the types of material and sizes of products is difficult, so the accuracy of the control in a known manner is insufficient.
Цель изобретени - повышение достоверности контрол .The purpose of the invention is to increase the reliability of the control.
Поставленна цель достигаетс тем, что на 11амап1ичениое изделие воздействуют перемен-. The goal is achieved by the fact that the product undergoes changes -.
X ным магнитным полем с увеличивающейс амплитудой , измер ют величину напр женности переменного магнитного пол , перемножают напр женности двух полей и по максимумуAn increasing amplitude of the x magnetic field, measures the magnitude of the alternating magnetic field strength, multiplies the strengths of the two fields and the maximum
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU803210707A SU930099A1 (en) | 1980-11-26 | 1980-11-26 | Method of checking ferromagntic material article mechanical properties |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU803210707A SU930099A1 (en) | 1980-11-26 | 1980-11-26 | Method of checking ferromagntic material article mechanical properties |
Publications (1)
Publication Number | Publication Date |
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SU930099A1 true SU930099A1 (en) | 1982-05-23 |
Family
ID=20929237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU803210707A SU930099A1 (en) | 1980-11-26 | 1980-11-26 | Method of checking ferromagntic material article mechanical properties |
Country Status (1)
Country | Link |
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SU (1) | SU930099A1 (en) |
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1980
- 1980-11-26 SU SU803210707A patent/SU930099A1/en active
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