Preparation method of MnZn (Manganese-Zinc) soft magnetic ferrite material containing modified tree ash

Abstract

The invention discloses a preparation method of a MnZn (Manganese-Zinc) soft magnetic ferrite material containing modified tree ash. The preparation method comprises the following steps of: preparing main materials, preparing auxiliary materials, pre-burning, mixing and secondarily ball-milling the main materials and the auxiliary materials, shaping and sintering to obtain a MnZn soft magnetic ferrite magnetic core of modified tree ash. Through the addition of the modified tree ash, the MnZn soft magnetic ferrite material can play a bridge combination role among different raw materials; the used raw materials have the advantages of better distribution, high density, high grain boundary resistivity, low porosity and great and even grains; the prescription of the raw materials is reasonably improved, so that the magnetic core has higher magnetic conductivity after firing; and the indexes such as power loss, frequency feature, curie temperature, saturation flux density and the like are greatly improved.

Description

technical field [0001] The invention relates to a preparation method of manganese zinc MnZn soft magnetic ferrite material containing modified tree ash. Background technique [0002] High-permeability ferrite magnetic powder and magnetic core are essential electronic components for miniaturization and lightening of inductors, filters, pulse transformers and other products in electronic equipment such as program-controlled communication, digital technology, and network communication color TVs. Materials, continuously improving the initial magnetic permeability of magnetic materials has always been the pursuit of engineers and manufacturers engaged in this profession. my country has developed high magnetic permeability materials by the traditional oxide method for more than 40 years. So far, the high magnetic permeability materials produced by the oxide method can only reach about 10,000, and the performance indicators of the materials, such as loss, frequency characteristics, a...

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Problems solved by technology

[0002] High-permeability ferrite magnetic powder and magnetic core are essential electronic components for miniaturization and lightening of inductors, filters, pulse transformers and other products in electronic equipment such as program-controlled communication, digital technology, and network communication color TVs. Materials, continuously improving the initial magnetic permeability in magnetic materials has always been the pursuit of engineering technicians and manufacturers engaged in this profession. my country has a history of more than 40 years of developing high magnetic permeability materials by the traditional oxide method. So far, the high magnetic permeability materials produced by the oxide method can only reach about 10,000, and the performance indicators of the materials, such as loss, frequency characteristics, and Curie temperature, are not satisfactory.

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