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

Novel high-density magnetic composite material for inductor

A magnetic composite material, high-density technology, applied in the direction of magnetic materials, magnetic objects, inorganic materials, etc., can solve the problems of poor electromagnetic performance, product size limitation, large equipment investment, etc., to reduce production costs, reduce mold loss, The effect of saving equipment investment

Active Publication Date: 2015-08-26
河源市铂科新材料有限公司
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The press is a super-large equipment, and the soft magnetic powder core is pressed to 1cm 2 The pressure per unit area needs to be more than 15T, the investment in equipment is large, and the production cost is high;
[0005] 2. Molds made of special materials are required during the pressing process, which limits the production of magnetic cores with complex shapes. In addition, molds are consumables and are expensive, which hinders the rapid development of magnetic cores;
[0006] 3. After the soft magnetic powder core is pressed, it needs to be annealed to eliminate internal stress, infiltration strengthening, and chamfering and other complex processes, resulting in low production efficiency and high labor costs;
[0007] 4. The size of the product is limited by the pressure, and products with larger sizes cannot be prepared by a press, which restricts the development of magnetic cores to large sizes;
This method to a certain extent solves the problems of high cost of pressing powder cores, complicated production and preparation, etc., but this method is composed of ordinary thermosetting binder and ferromagnetic powder, and the magnet density after curing is low (4.5g / cm 3 ~5.2g / cm 3 ), low inductance and poor DC bias capability and other shortcomings of poor electromagnetic performance

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
  • Novel high-density magnetic composite material for inductor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for manufacturing high-density novel magnetic composite materials for inductors, comprising the following steps:

[0029] 1. Prepare high-temperature resin glue: Weigh 0.42kg of modified epoxy silicone resin, 0.06kg of mercaptopropylmethyldimethoxysilane, and 0.12kg of m-xylylenediamine, and mix them uniformly for 3 minutes to ensure that the components Evenly distributed;

[0030] 2. Preparation of magnetic powder: Weigh 1.88kg of iron-silicon powder of -100 mesh to 200 mesh, 2.82kg of iron-silicon powder of -200 mesh to 500 mesh, and 4.7kg of iron-silicon powder of -500 mesh, and mix the powder uniformly for 30 minutes ;

[0031] 3. Mix 0.6kg of prepared high-temperature resin glue with 9.4kg of prepared magnetic powder for 30 minutes, so that a layer of uniform high-temperature resin glue is formed on the surface of iron-silicon powder, in order to produce insulation properties, and ensure that the mixture can Form stable flow characteristics;

[0032] 4....

Embodiment 2

[0034] A method for manufacturing high-density novel magnetic composite materials for inductors, comprising the following steps:

[0035] 1. Prepare high-temperature resin glue: Weigh 0.75kg of modified epoxy silicone resin, 0.07kg of mercaptopropylmethyldimethoxysilane, and 0.18kg of m-xylylenediamine, and mix them uniformly for 3 minutes to ensure that each component Evenly distributed;

[0036] 2. Preparation of magnetic powder: Weigh 2.25kg of iron-silicon powder of -100 mesh to 200 mesh, 3.15kg of iron-silicon powder of -200 mesh to 500 mesh, and 3.6kg of iron-silicon powder of -500 mesh, and mix the powder uniformly for 30 minutes ;

[0037] 3. Evenly mix 1kg of the prepared high-temperature resin glue with 9kg of the prepared magnetic powder for 30 minutes, so that a uniform layer of high-temperature resin glue is formed on the surface of the iron-silicon powder, in order to produce insulating properties, and to ensure that the mixture can form a stable flow character...

Embodiment 3

[0040] A method for manufacturing high-density novel magnetic composite materials for inductors, comprising the following steps:

[0041] 1. Prepare high-temperature resin glue: Weigh 0.96kg of modified epoxy silicone resin, 0.06kg of mercaptopropylmethyldimethoxysilane, and 0.18kg of m-xylylenediamine, and mix them uniformly for 3 minutes to ensure that each component Evenly distributed;

[0042] 2. Preparation of magnetic powder: Weigh 2.64kg of iron-silicon powder of -100 mesh to 200 mesh, 3.52kg of iron-silicon powder of -200 mesh to 500 mesh, and 2.64kg of iron-silicon powder of -500 mesh, and mix the powder uniformly for 30 minutes ;

[0043] 3. Mix 1.2kg of prepared high-temperature resin glue with 8.8kg of prepared magnetic powder for 30 minutes, so that a uniform layer of high-temperature resin glue is formed on the surface of iron-silicon powder, in order to produce insulation properties, and ensure that the mixture can Form stable flow characteristics;

[0044] 4...

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
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a novel high-density magnetic composite material for an inductor. The novel high-density magnetic composite material for the inductor comprises, by weight, 6%-12% of high-temperature resin adhesive and 88%-94% of magnetic powder. When the magnetic composite material is used for manufacturing a magnetic core of the inductor, production is easy, no large pressing machine is needed, and equipment investment is saved; mold losses during pressing are reduced, and production cost is reduced; operation is easy, a magnet in a complicated shape can be produced, and a super-large magnet can also be produced; a closed loop is formed, and the EMI effect is good. According to the magnetic composite material, through the action of the special high-temperature resin glue, the density of the solidified magnet is high, it can be guaranteed that the density ranges from 5.5 g / cm<3> to 6.2 g / cm <3>, the induction quantity value of the manufactured inductor is high, and the initial permeability reaches over 14 microns; the magnetic composite material can bear high temperature and can work under the 180 DEG C environment; the magnetic composite material is high in utilization rate, waste is little, powder is little, and the requirement for environmental friendliness is met.

Description

technical field [0001] The invention relates to the technical field of inductance components, in particular to a new high-density magnetic composite material for inductance. Background technique [0002] Metal soft magnetic powder core is a new type of magnetic material with special functions of magnetoelectric conversion. It is a powder made of metal or alloy soft magnetic material and a magnetic core material produced by a special process. Due to the special function of magnetoelectric conversion, soft magnetic materials are widely used in various scientific and technological fields and industrial fields. Because of this, metal soft magnetic powder cores play an irreplaceable role in the power electronics industry. [0003] The production of traditional soft magnetic powder cores is basically pressed by a press. Pressing has certain advantages in manufacturing soft magnetic powder cores, but there are also certain defects and deficiencies: [0004] 1. The press is a supe...

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): H01F1/147H01F1/22C08L83/06C08K5/548C08K5/18
Inventor 郭雄志肖强阮佳林邱俊刘志达罗涛刘元来
Owner 河源市铂科新材料有限公司
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