Preparation method of soft magnetic ferrimagnetics

Abstract

The preparation method of magnetically soft ferrite magnet includes the following steps: in deionized water adding (wt%) 5-30% of mixture of ethylol methacrylate and tetraglycol diacrylate (accordingto the mixing weight ratio of 10-50:1), 0-20% of water-soluble macromolecular material, 3-20% of dispersing agent and 0.17-2% of initiating agent, mixing them and preparing them into monomer solution, adding the magnetically soft ferrite powder into monomer solution, mixing them to obtain suspension system, pouring the suspension system into foring mould, heating, heat-insulating, demoulding and drying so as to obtain the invented product. The described monomer aqueous solution is non-toxic, and the ammonium persulfate can be adopted as initiating agent.

Description

(1) Technical field

[0001] The invention relates to the technical field of magnet forming and processing, in particular to a method for preparing a soft ferrite magnet. (2) Background technology

[0002] Soft magnetic ferrite material is a basic material with wide application, large output and low cost. It is one of the important pillar products in the electronics and electromechanical industries. Its promotion and application directly affect electronic information, home appliance industry, computer and communication, and environmental protection. And the development of energy-saving technology is also one of the symbols to measure the degree of economic development of a country. The practical use of soft ferrite materials has been half a world so far. Because of its high magnetic permeability, high resistivity, low loss and wear resistance of ceramics, it is used in electron beam deflection coils of TV sets, flyback transformers, Radio choke coils, mid-week transformers, i...