Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing complete orientation soft magnetic composite material

A soft magnetic composite material and orientation technology, which is applied in the direction of magnetic materials, inorganic materials, magnetic objects, etc., can solve the problem that the magnetic particles cannot be flattened and completely oriented

Inactive Publication Date: 2017-02-01
彭晓领
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can achieve a certain degree of anisotropy, but cannot completely orient all the flattened magnetic particles

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing complete orientation soft magnetic composite material
  • Method for preparing complete orientation soft magnetic composite material
  • Method for preparing complete orientation soft magnetic composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The specific steps are:

[0033] 1) Material preparation

[0034] Choose flattened iron powder with an average thickness of 0.5 μm as the raw material;

[0035] 2) mixing, pouring

[0036] Fully stir and mix 100 parts of epoxy resin and 20 parts of flattened iron powder, then add 1 part of curing agent diethylenetriamine, continue stirring for 30 seconds, and inject into the ring mold;

[0037] 3) Fully oriented solidification in a magnetic field

[0038] The mold after casting is quickly placed in a horizontal magnetic field for orientation. According to different orientation methods, it can be divided into three types: (1), the magnetic ring is placed horizontally, without magnetic field orientation; (2), the magnetic ring is placed horizontally, and the normal line is vertical in the direction of the magnetic field, while rotating with the normal as the axis; (3), the magnetic ring is placed vertically, the normal is parallel to the direction of the magnetic field...

Embodiment 2

[0041] The specific steps are:

[0042] 1) Material preparation

[0043] Choose flattened iron-silicon powder with an average thickness of 0.8 μm as the raw material;

[0044] 2) mixing, pouring

[0045] Fully stir and mix 100 parts of epoxy resin and 50 parts of flat iron-silicon powder, then add 2 parts of curing agent diethylenetriamine, continue stirring for 30 seconds, and inject into the ring mold;

[0046] 3) Fully oriented solidification in a magnetic field

[0047] The mold after casting is quickly placed in a horizontal magnetic field for orientation. According to different orientation methods, it can be divided into three types: (1), the magnetic ring is placed horizontally, without magnetic field orientation; (2), the magnetic ring is placed horizontally, and the normal line is vertical in the direction of the magnetic field, while rotating with the normal as the axis; (3), the magnetic ring is placed vertically, the normal is parallel to the direction of the ma...

Embodiment 3

[0050] The specific steps are:

[0051] 1) Material preparation

[0052] Choose flat sendust powder with an average thickness of 1.5 μm as the raw material;

[0053] 2) mixing, pouring

[0054] Fully stir and mix 100 parts of epoxy resin and 100 parts of flat sendust powder, then add 5 parts of curing agent diethylenetriamine, continue stirring for 30 seconds, and inject into the ring mold;

[0055] 3) Fully oriented solidification in a magnetic field

[0056]The mold after casting is quickly placed in a horizontal magnetic field for orientation. According to different orientation methods, it can be divided into three types: (1), the magnetic ring is placed horizontally, without magnetic field orientation; (2), the magnetic ring is placed horizontally, and the normal line is vertical in the direction of the magnetic field, while rotating with the normal as the axis; (3), the magnetic ring is placed vertically, the normal is parallel to the direction of the magnetic field, a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a complete orientation soft magnetic composite material. According to the method, flattened metal magnetic powder with an average thickness of 0.5-5 [mu]m is taken as a raw material; the flattened metal magnetic powder is fully evenly mixed with epoxy resin, and the mixture is injected into an annular die after a curing agent is added; the die is placed in a magnetic field to be orientated; according to orientation mode differences, there can be three forms: (1) a magnetic ring is horizontally placed and there is no magnetic field orientation; (2) the magnetic ring is horizontally placed, the normal is perpendicular to the magnetic field direction, and the magnetic ring rotates with the normal as the axis; (3) the magnetic ring is vertically placed, the normal is parallel to the magnetic field direction, and the magnetic ring rotates with the diameter as the axis; and a sample undergoes orientation and curing in the magnetic field and then is taken out. According to the method, in the soft magnetic composite material forming process, the magnetic field is applied, the magnetic ring rotates, flattened metal particles form complete orientation in the external magnetic field direction and present a complete orientation structure; the complete orientation structure of flattened magnetic powder in the magnetic ring generates typical anisotropic magnetic performance, the effective magnetic permeability is improved, and the loss is reduced.

Description

technical field [0001] The invention relates to a preparation method of a fully oriented soft magnetic composite material, belonging to the field of material preparation. Background technique [0002] Soft magnetic material is a kind of magnetic material with high magnetic permeability and low coercive force. Soft magnetic materials are easy to magnetize and demagnetize, and are widely used in electrical and electronic equipment. There are many types of soft magnetic materials, which can be divided into metal soft magnetic materials, soft magnetic ferrites and soft magnetic composite materials. The advantage of metal soft magnetism is that its saturation magnetization is high, but the disadvantage is that the metal resistivity is low, so when used at high frequencies, the eddy current loss is extremely large, and the magnetic permeability drops sharply, so it cannot be used at medium and high frequencies. Materials are a fatal flaw. Ferrite soft magnetic material has high...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/147H01F1/20H01F1/33
CPCH01F1/14791H01F1/20H01F1/33
Inventor 彭晓领李静杨艳婷徐靖才王攀峰金红晓洪波金顶峰王新庆葛洪良
Owner 彭晓领
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com