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

Microcrystalline soft magnetic powder material and preparation method thereof

A technology of soft magnetic powder and microcrystals, which is applied in the direction of magnetic materials, inorganic materials, magnetic objects, etc., can solve the problems of high alloy cost and complicated process, achieve the effects of shortened production cycle, simple production and preparation process, and improved magnetic permeability

Inactive Publication Date: 2009-11-04
南京深宁磁电有限公司
View PDF2 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent only uses Ti, the improvement of performance is limited, and the process is quite complicated, so the cost of the alloy is relatively high

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
  • Microcrystalline soft magnetic powder material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The weight percentage of microcrystalline soft magnetic powder material composition of the present invention is: 4.5% Al, 7% Si, 0.1% Cu, 0.1% Zr, 0.5% B, 0.05% Pr, 0.05% La, 0.01% P, the rest is Fe.

[0020] Preparation process: First, the ingredients are prepared according to the above ingredients. The purity of the raw materials Fe, Al, Cu, Zr, Si, B, Pr, and La is greater than 99.9%. P is added in the form of an iron-phosphorus master alloy. The percentage by weight is 18%; the prepared material is melted in a vacuum quick-setting sheet casting furnace, and the melting temperature is 1500°C. After obtaining the master alloy solution, the alloy liquid is poured on the water-cooled round roller rotating in the furnace, and the rotation line of the roller is The speed is 1-5m / s, the molten metal is rapidly cooled and solidified, so that the liquid state is frozen to form a thin slice with a microcrystalline structure, the thickness of the thin slice is 0.5-1.2mm, and t...

Embodiment 2

[0022] The weight percentage of the microcrystalline soft magnetic powder material composition of the present invention is: 6.5% Al, 12% Si, 0.2% Cu, 0.5% Zr, 2.5% B, 0.1% Pr, 0.1% La, 0.05% P, and the rest is Fe .

[0023] Its preparation process is with embodiment one.

Embodiment 3

[0025] The weight percentage of microcrystalline soft magnetic powder material composition of the present invention is: 5% Al, 9% Si, 0.1% Cu, 0.3% Zr, 1% B, 0.08% Pr, 0.07% La, 0.03% P, the rest is Fe.

[0026] The preparation process is the same as in Example 1.

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
Login to View More

Abstract

The invention provides a microcrystalline soft magnetic powder material with high saturation magnetization. The material has high magnetic conductivity, is made of common raw materials and has low manufacturing cost. The invention also provides a preparation method for the microcrystalline soft magnetic powder material. The method has simple process and is suitable for industrialized mass production. The microcrystalline soft magnetic powder material comprises the following components by weight: 4 to 7 percent of Al, 7 to 12 percent of Si, 0.05 to 0.2 percent of Cu, 0.1 to 0.5 percent of Zr, 0.5 to 2.5 percent of B, 0.05 to 0.1 percent of Pr, 0.05 to 0.1 percent of La, 0.01 to 0.05 percent of P and the balance of Fe.

Description

1. Technical field [0001] The invention relates to a microcrystalline soft magnetic powder material with high saturation magnetization and a preparation method of the magnetic powder, belonging to the technical field of magnetic materials. 2. Background technology [0002] Sentinel is a soft magnetic alloy widely used in industry. In order to further improve the performance, people continue to propose new alloy designs. [0003] Application No. 200710160244.6 proposes a method for preparing a sendust alloy with high saturation magnetization. The method comprises the following steps: 1) using Fe, Al, Si and Co with a purity greater than 99.9wt% as raw materials and melting them in an intermediate frequency vacuum induction furnace to obtain a master alloy; 2) putting the melted master alloy into a rapid quenching device , the alloy ingot is remelted under the protection of high-purity inert gas and then quickly poured onto a high-speed rotating roller to obtain a rapidly co...

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): H01F1/147H01F1/20C22C1/03B22F9/00
Inventor 王玲赵浩峰张帅徐胜宏陈文龙
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