Rare earth high-magnetic-permeability soft magnetic ferrite and preparation method thereof

Abstract

The present invention discloses a rare earth high-magnetic-permeability soft magnetic ferrite and a preparation method thereof, wherein the rare earth high-magnetic-permeability soft magnetic ferrite is prepared from the following raw materials by weight: 55-65 parts of ferroferric oxide, 1-13 parts of zinc oxide, 15-18 parts of manganese oxide, 4-8 parts of copper oxide, 0.4-0.6 part of lanthanum oxide, 0.2-0.6 part of tantalum pentoxide, 0.3-0.4 part of carbonyl iron powder, 6-10 parts of chlorinated polyethylene, 0.4-1 part of carbon powder, 1-2 parts of sodium lignin sulfonate, 6-9 parts of an organosilicon resin, and a proper amount of deionized water. The rare earth high-magnetic-permeability soft magnetic ferrite of the present invention has characteristics of high magnetic-permeability, low loss, easy operation, low environmental pollution, cost reducing, high qualification rate, and stable quality.

Description

technical field [0001] The invention relates to the field of soft ferrite materials, in particular to a rare earth high magnetic permeability soft ferrite and a preparation method thereof. Background technique [0002] Ferrite is a metal composite oxide with ferromagnetism. In terms of its electromagnetic properties, the resistivity of ferrite is much larger than that of metal and alloy magnetic materials, and it also has high dielectric properties. It can also show high magnetic permeability at high frequencies. Therefore, ferrite has become a widely used non-metallic magnetic material in the field of high frequency and weak current. Ferrite magnetic powder and magnetic core with high magnetic flux density are essential for miniaturization and light weight of inductors, filters, pulse transformers and other products in electronic equipment such as program-controlled communication, digital technology, and network communication color TVs. For electronic materials, continuou...

AI Technical Summary

Problems solved by technology

Ferrite magnetic powder and magnetic core with high magnetic flux density are essential for miniaturization and light weight of inductors, filters, pulse transformers and other products in electronic equipment such as program-controlled communication, digital technology, and network communication color TVs. For electronic materials, continuously improving the magnetic flux density in magnetic materials has always been the pursuit of engineers and manufacturers engaged in this profession. At present, the performance indicators of ferrite materials, such as loss, frequency characteristics, and Curie temperature, are all different. satisfactory