Principal component regression analysis method of non-oriented silicon steel magnetism performance influence factor

Abstract

The invention relates to a principal component regression analysis method of a non-oriented silicon steel magnetism performance influence factor. According to the method, the content of inclusions in different size intervals of non-oriented silicon steel of the same mark, the content of beneficial and harmful textured components and the content of crystal particles within different size ranges are recorded; standardized processing and dimension reduction processing are carried out on all data; a feature value is calculated, and the number of principal components and expressions of the principal components are determined; regression analysis is carried out, and a significance test is carried out on a regression equation; if a non-significant independent variable exists in the regression equation, the significance test is carried out on the independent variable; the regression equation is converted to a multielement linear relation between the sizes of the inclusions, the textured components and the crystal particles and non-oriented silicon steel magnetism performance by means of inverse operations of a standard deviation standardization method. The rules of influences of the sizes of the inclusions, the textured components and the crystal particles on the non-oriented silicon steel magnetism performance can be comprehensively researched by means of the method, the factor which remarkably influences magnetism performance is found, and directivity guide is provided for production of non-oriented silicon steel products which are high in magnetic induction and low in iron loss in actual production.

Description

technical field [0001] The invention relates to the technical field of controlling the properties of non-oriented silicon steel, in particular to a principal component regression analysis method of factors affecting the magnetic properties of non-oriented silicon steel. Background technique [0002] With the society's increasing attention to energy, environmental protection and other issues and the rapid development of electric power, telecommunications and other industries, various motors, generators, compressors and other products require high efficiency, high precision and miniaturization to achieve energy saving and consumption reduction , environmental protection standards, and cold-rolled non-oriented silicon steel is widely used as an important soft magnetic material required for the manufacture of these products, so the requirements for its performance (especially magnetic properties) are getting higher and higher, and the pursuit of lower Fe Excellent magnetic prope...

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Problems solved by technology

[0004] At present, there have been a lot of studies on the analysis of inclusions, texture, and grain size in non-oriented silicon steel at home and abroad, but most of them are only from a qualitative point of view, respectively examining their relationship with the magnetic properties of non-oriented silicon steel. However, it is impossible to comprehensively study the influence of inclusions, texture, and grain size on the magnetic properties of non-oriented silicon steel from a quantitative perspective, and it is difficult to determine the factors that significantly affect the magnetic properties. There are few studies on the influence of texture and grain size on the magnetic properties of non-oriented silicon steel

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