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

High-performance nano-crystalline soft magnetic composite material and preparation method thereof

A technology of nanocrystalline soft magnetic and composite materials, applied in the field of soft magnetic materials, can solve the problems of high cost, waste of parts raw materials, low efficiency, etc., and achieve the effect of improving injection molding performance and dispersion uniformity

Inactive Publication Date: 2012-07-04
南京深宁磁电有限公司 +2
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a high-performance nanocrystalline soft magnetic composite material and its preparation method. Its purpose is to overcome the defects of large waste of raw materials, high cost and low efficiency in the existing technology, and is beneficial to improve the performance of metal powder in the aggregation process. Propylene Dispersion and Compatibility

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A kind of high-performance nanocrystalline soft magnetic composite material is characterized in that raw material and mass percent are Fe:Cr:Si:B:C:polypropylene:lubricant:coupling agent:compatibilizer:melt index modifier=59: 8:8:4:1:8:4:3:3:2.

[0010] The preparation process is as follows: primary batching→high-speed water atomization→passivation treatment→annealing treatment→first ball milling→secondary ball milling→secondary batching→three ball milling→third batching→high-speed mixing→extrusion granulation→injection molding.

[0011] 1) One batching, adding one or more of Fe, Cr, Si, B, C, iron silicon powder, iron silicon aluminum powder, iron nickel powder, iron nickel molybdenum powder;

[0012] 2) The high-speed water atomization process is: metal raw material → smelting → tundish → high-pressure nozzle → powder collecting → washing and filtering → reduction → screening. Nozzle diameter (D) is 1mm, atomization water pressure No. 1 water pressure = 10MPa, No. 2 ...

Embodiment 2

[0026] A kind of high-performance nanocrystalline soft magnetic composite material is characterized in that raw material and mass percent are Fe:Cr:Si:B:C:polypropylene:lubricant:coupling agent:compatibilizer:melt finger modifier=40: 12:11:6:2:10:5:4:5:5.

[0027] The preparation process is as follows: primary batching→high-speed water atomization→passivation treatment→annealing treatment→first ball milling→secondary ball milling→secondary batching→three ball milling→third batching→high-speed mixing→extrusion granulation→injection molding.

[0028] 1) One batching, adding one or more of Fe, Cr, Si, B, C, iron silicon powder, iron silicon aluminum powder, iron nickel powder, iron nickel molybdenum powder;

[0029] 2) The high-speed water atomization process is: metal raw material → smelting → tundish → high-pressure nozzle → powder collecting → washing and filtering → reduction → screening. Nozzle diameter (D) is 1.5mm, atomization water pressure No. 1 water pressure = 15MPa, ...

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
Melt indexaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-performance nano-crystalline soft magnetic composite material and a preparation method thereof. The high-performance nano-crystalline soft magnetic composite material is characterized in that the proportion of raw materials Fe: Cr: Si: B: C: polypropylene: lubricant: coupling agent: melt index regulator is equal to (40-59):(8-40): (8-20):(4-10):(1-5):(8-50):(4-10):(3-5):(3-8):(2-8) by mass percentage. The preparation method includes primary blending, high-speed water atomization, passivation, annealing process, primary grinding by a ball mill, secondary grinding by the ball mill, secondary blending, tertiary grinding by the ball mill, tertiary blending, high-speed mixing, granulating by extrusion and injection molding. The preparation method of the high-performance nano-crystalline soft magnetic composite material is suitable for production of magnetic circuit elements complicated in shape and high in precision requirements. The material prepared by the preparation method has the advantages of high magnetic conductivity, high-saturated magnetic induction strength, low coercivity and loss and high stability.

Description

technical field [0001] The invention relates to the field of soft magnetic materials in metal functional materials, in particular to a high-performance nanocrystalline soft magnetic composite material capable of injection molding. Background technique [0002] The development of soft magnetic materials has gone through the course of crystalline, amorphous and nanocrystalline states. Amorphous soft magnetic material is a new kind of magnetic material, which has the characteristics of high magnetic permeability, high saturation magnetic induction, low coercive force, low loss and high stability. In terms of soft magnetic properties, nanocrystalline soft magnetic and maintain the high saturation magnetic induction value of iron-based amorphous alloy. At the same time, the initial magnetic permeability and medium and high frequency characteristics have reached or exceeded the level of Momo alloy and Co-based amorphous material. Soft magnetic materials are widely used, mainly u...

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
IPC IPC(8): H01F1/12B22F3/115
Inventor 于万林王坤明吕延吕明李行
Owner 南京深宁磁电有限公司
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