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Injection molding magnet material in rotor magnetic steel and preparation method for material

A magnetic steel, injection molding technology, applied in the field of materials, to achieve the effect of high resistivity, high permeability and low loss

Inactive Publication Date: 2016-11-30
芜湖东新磁电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Injection-molded magnet materials in traditional rotor magnetic steel usually use magnetic powder uniformly mixed with insulating medium and pressed into a magnetic core. Because the powder particles are small and separated by non-magnetic insulating medium, their resistivity is much higher than that of metals and their alloys. At the same time, distributed air gaps are formed inside the magnet. During magnetization, these distributed air gaps can store considerable capacity, resulting in large magnetic losses; therefore, it is a very urgent task to develop new rotor magnet steel injection molding magnet materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An injection-molded magnet material in a rotor magnetic steel, the main raw materials in parts by weight are: 57 parts of nano-modified magnetic powder, 20 parts of cobalt oxide, 10 parts of manganese oxide, 5 parts of zinc oxide, 10 parts of zirconium oxide, 3 parts of barium carbonate, 1 part of silicone resin, 0.2 part of polyphenylene ether; the preparation method of the nano-modified magnetic powder: firstly mix lauric acid, Tween and isopropanol and perform vacuum filtration to obtain the mixture, then mix the mixture with trioxide The nano-modified magnetic powder is obtained by reacting the ferromagnetic powder under microwave; the particle size of the cobalt oxide is 137 μm; the mesh number of the manganese oxide is 800 mesh.

[0020] A method for preparing an injection-molded magnet material in a rotor magnetic steel, the specific steps are:

[0021] (1) First, put cobalt oxide, manganese oxide, zinc oxide, zirconium oxide, and barium carbonate into the nano-m...

Embodiment 2

[0025] An injection-molded magnet material in a rotor magnetic steel, the main raw materials in parts by weight are: 59 parts of nano-modified magnetic powder, 24 parts of cobalt oxide, 14 parts of manganese oxide, 8 parts of zinc oxide, 12 parts of zirconium oxide, 3 parts of barium carbonate, 1 part of silicone resin, 0.2 part of polyphenylene ether; the preparation method of the nano-modified magnetic powder: firstly mix lauric acid, Tween and isopropanol and perform vacuum filtration to obtain the mixture, then mix the mixture with trioxide The nano-modified magnetic powder is obtained by reacting the ferromagnetic powder under microwave; the particle size of the cobalt oxide is 137 μm; the mesh number of the manganese oxide is 800 mesh.

[0026] A method for preparing an injection-molded magnet material in a rotor magnetic steel, the specific steps are:

[0027] (1) First, put cobalt oxide, manganese oxide, zinc oxide, zirconium oxide, and barium carbonate into the nano-m...

Embodiment 3

[0031] An injection-molded magnet material in a rotor magnetic steel, the main raw materials in parts by weight are: 62 parts of nano-modified magnetic powder, 26 parts of cobalt oxide, 17 parts of manganese oxide, 11 parts of zinc oxide, 13 parts of zirconium oxide, 4 parts of barium carbonate, 3 parts of silicone resin, 0.7 parts of polyphenylene ether; the preparation method of the nano-modified magnetic powder: firstly mix lauric acid, Tween and isopropanol and perform vacuum filtration to obtain the mixture, then mix the mixture with trioxide The nano-modified magnetic powder is obtained by reacting the ferromagnetic powder under microwave; the particle size of the cobalt oxide is 137 μm; the mesh number of the manganese oxide is 800 mesh.

[0032] A method for preparing an injection-molded magnet material in a rotor magnetic steel, the specific steps are:

[0033] (1) First, put cobalt oxide, manganese oxide, zinc oxide, zirconium oxide, and barium carbonate into the nan...

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Abstract

The invention discloses an injection molding magnet material in rotor magnetic steel and a preparation method for the material. The injection molding magnet material in the rotor magnetic steel comprises the following main raw materials in parts by weight: 57-69 parts of nano-modified magnetic powder, 20-30 parts of cobalt oxide, 10-20 parts of manganese oxide, 5-15 parts of zinc oxide, 10-15 parts of zirconium oxide, 3-5 parts of barium carbonate, 1-4 parts of organic silicon resin and 0.2-0.8 parts of polyphenyl ether. The injection molding magnet material in the rotor magnetic steel has relatively high magnetic conductivity and low complex magnetic conductivity, namely, low loss, high resistivity, high Curie temperature and high saturation magnetic induction intensity.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to an injection-molded magnet material in a rotor magnetic steel and a preparation method thereof. Background technique [0002] Injection-molded magnet materials in traditional rotor magnetic steel usually use magnetic powder uniformly mixed with insulating medium and pressed into a magnetic core. Because the powder particles are small and separated by non-magnetic insulating medium, their resistivity is much higher than that of metals and their alloys. , At the same time, distributed air gaps are formed inside the magnet. During magnetization, these distributed air gaps can store considerable capacity, resulting in large magnetic losses; therefore, it is a very urgent task to develop new rotor magnet steel injection-molded magnet materials. Contents of the invention [0003] The object of the present invention is to provide an injection-molded magnet material in a rotor magnet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/09B29B7/00
CPCH01F1/09B29B7/002
Inventor 盛瑞宋文军凌钧
Owner 芜湖东新磁电有限公司
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