Ferrite magnet material of manganese-zinc, and Method for preparing high conductive ferrite of manganese-zinc from material

A technology of zinc ferrite and high conductivity, which is applied in the field of manganese-zinc ferrite magnet materials and the preparation of high-conductivity manganese-zinc ferrite and soft magnetic manganese-zinc ferrite products, which can solve the problem of It is difficult to solve the problems of high magnetic permeability and small specific loss coefficient, so as to achieve the effect of reasonable ratio, increased resistivity, and improved magnetic permeability-temperature characteristics
CN1697094AActive Publication Date: 2005-11-16SUZHOU GUANDA MAGNET
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU GUANDA MAGNET
Publication Date
2005-11-16

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Abstract

Mixed main material including 51.5-52.8 mol% ferric oxide, 23.3-26.0 mol% manganese oxide, and 22.5-24.0 mol% zinc oxide is processed through shake grinding and pre-burning procedures. Next, auxiliary materials including 500-1000ppm calcium oxide, 300-1500ppm titanium oxide and 100-400ppm bismuth oxide are added to the said processed main material. Then, procedures including sand mill, granulation, body blank and burning are carried out in sequence to produce products. Advantages are: reasonable compounding ratio between main and auxiliary materials provides precondition for producing the disclosed product in high magnetic permeability and low coefficient of specific loss; optimized curve of agglomeration technology prevents oxidation of products, and improves temperature and even atmosphere in kiln. The product shows preferred initial permeability, coefficient of specific loss and coefficient of specific temperature.
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Description

technical field

[0001] The invention relates to a manganese-zinc ferrite magnet material and a method for preparing high-conductivity manganese-zinc ferrite with the material, more specifically, it relates to the selection of magnet materials for soft magnetic manganese-zinc ferrite and its A soft magnetic manganese-zinc ferrite product with high magnetic permeability is prepared by using selected materials, which belongs to the technical field of magnetic materials and processing. Background technique

[0002] With the rapid development of the information industry (IT), the traditional soft magnetic ferrite can no longer meet the requirements of emerging IT, so that the manganese-zinc ferrite with high magnetic permeability is increasingly valued by the industry and has become an IT technology important parts of. Since most of the various power transformers used in the communication field work under low magnetic flux density, if the ferrite material can be reasonably selec...

Claims

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