A grinding process of e-shaped magnetic core

Abstract

The invention provides a polishing process for an E type magnetic core. The technical problems that when an existing grinding process is used for manufacturing the E type magnetic core, two times of grinding including flush grinding and air gap grinding are needed, and the product precision is poor are solved. According to the polishing process for the E type magnetic core, the E type magnetic core comprises a center column, a left side column and a right side column, and the left side column and the right side column are located at the two sides of the center column. The polishing process is characterized by comprising the following steps that a, the E type magnetic core to be polished is prepared; and b, one-time polishing forming is carried out, wherein the upper end face of the left side column, the upper end face of the right side column and the upper end face of the middle column are subjected to one-time polishing forming through polishing equipment, the height of the polished center column is smaller than that of the left side column, and the height of the left side column is equal to that of the right side column. The polishing process has the beneficial effect of being stable in product quality.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a polishing process of an E-shaped magnetic core. Background technique [0002] The magnetic core refers to a sintered magnetic metal oxide composed of various iron oxide mixtures. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. Manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density, and at frequencies below 1MHz , has the characteristics of lower loss; nickel-zinc ferrite has the characteristics of extremely high resistivity, low magnetic permeability of less than a few hundred, and lower loss at frequencies higher than 1MHz. Ferrite cores are used in coils and transformers in various electronic devices. [0003] After searching, for example, the Chinese patent literature discloses a grinding process of a soft ferrite core [application number: 200910194881.4; publication number...

AI Technical Summary

Problems solved by technology

[0004] Although the grinding process disclosed in this patent can save equipment costs and enhance the competitiveness of enterprises, this grinding process is used to prepare E-shaped magnetic cores, and it needs to be ground twice and air-gap grinding, and the product accuracy is relatively low. Poor, therefore, it is necessary to design a grinding process for E-type magnetic core

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