Electrical grade sheet electro-magnetism performance measurement method

A technology of electrical steel plate, measurement method, applied in the detection field
CN101210947AInactive Publication Date: 2008-07-02ANGANG STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANGANG STEEL CO LTD
Publication Date
2008-07-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method of measuring electromagnetic performance of electric steel plates, which is characterized in that the method measures three Euler angles of each sample point orientation in an EBSD system and occupied proportion X of each identical or similar orientation, combining with conjectured coefficient of thickness fH, composition fc and influential factor (e) of misorientation on performance, applies these factors to modify the measuring on the basis of pure iron performance B, which is applicable for small quantity of samples that cannot be measured by Epstein frame, manifesting performance of each micro area of the sample and enabling good effect for the process improvement of the material with the same composition. In addition, the invention provides statistical calculation of crystal orientation of each orientation (100) in the measuring of non-oriented silicon steel, completely reflecting the general magnetic property of steel plates.
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Description

technical field

[0001] The invention relates to the detection field, in particular to a method for measuring the electromagnetic properties of electrical steel sheets. Background technique

[0002] The Epstein square circle method is used to measure the magnetic properties of electrical steel. The surface quality of the steel plate will have a certain impact on the performance test. The measurement of electromagnetic properties by this method can only reflect the overall performance of electrical steel macroscopically, and has a certain impact on the number and specifications of samples. Require. For non-oriented silicon steel, this method only measures the horizontal and vertical electromagnetic properties of the steel plate, while non-oriented silicon steel is applied in a rotating magnetic field, and requires good performance in all directions on the rolling surface. Therefore, this method cannot reflect the actual level of non-oriented silicon steel. For example, the h...

Claims

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