Preparation method of metal soft magnetic powder core

A metal soft magnetic and magnetic powder technology, applied in the direction of magnetic materials, magnetic objects, inorganic materials, etc., can solve the problems of poor magnetic performance stability, high pollution, high cost, and achieve low cost, low raw material cost and high quality factor. Effect
CN103247403AInactive Publication Date: 2013-08-14HEFEI UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Publication Date
2013-08-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a metal soft magnetic powder core, which aims at solving the technical problems of high pollution, high cost and poor magnetic stability in the prior art. The method comprises the steps of raw material sieving, insulation coating, to-be-formed magnetic powder preparation, pressure forming, heat treatment and surface spraying. The method has the technical benefits that a preparation technique is simple; used equipment is simple; the insulation coating is conducted on magnetic powder with nano oxide dispersion liquid; a using effect is good; an environment is not polluted; the raw material cost is low; an organic solvent and an organic binder are not used in a preparation process; soaking and solidification treatment is not conducted; the method is low in cost and pollution-free; and the metal soft magnetic powder core prepared by the method has good magnetic stability, a higher quality factor and lower magnetic core loss.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of magnetic materials, in particular to a method for preparing a metal soft magnetic powder core. Background technique

[0002] Metal soft magnetic powder core is a kind of composite soft magnetic material which is uniformly pressed by ferromagnetic metal powder and insulating medium. Because the magnetic powder particles are small, the magnetic powder is separated from each other by the insulating medium, the resistivity of the magnetic powder core is high, and the eddy current loss is small, so it is suitable for higher frequencies. Metal soft magnetic powder cores also have the advantages of high saturation magnetic induction, good frequency characteristics and temperature stability, and are mainly used to design and manufacture various high-performance electronic components, such as inductors, filters, transformers and Choke coils, etc., which are widely used in electronic communications,...

Claims

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