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

Low-cost Fe-Si-B-Cu-Nb-Al-Ni nanocrystalline magnetic core preparation method for high-frequency electronic transformer

A fe-si-b-cu-nb-al-ni, electronic transformer technology, applied in the direction of inductance/transformer/magnet manufacturing, circuits, magnetic materials, etc., can solve the problems of unfavorable competition and high production costs, and reduce production The effect of low cost, low production cost and simple production process

Active Publication Date: 2014-04-02
TONGLING SANJIA TRANSFORMER
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the FeCuNbSiB nanocrystalline magnetic core contains noble metal Nb, and the production cost is high, which is not conducive to competition with soft magnetic materials such as aluminum and steel.

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 Construction

[0015] A preparation method of Fe-Si-B-Cu-Nb-Al-Ni low-cost nanocrystalline magnetic core for high-frequency electronic transformer, comprising the following steps:

[0016] (1) Vacuum isothermal annealing for 1.5h under the condition of temperature of 520℃ and vacuum degree of 0.0015Pa, and then air-cooled to room temperature to obtain nanocrystalline thin ribbons prepared by single-roller melt rotary fast quenching method. belt; wherein, the mass percentage of each component of the iron-based amorphous thin belt is: Fe 73.5%, Si 13.5%, B 9%, Cu 1%, Nb 1.5%, Al 1%, Ni 0.5%, and its bandwidth is 10mm, with a thickness of 15μm;

[0017] (2) crushing the prepared nanocrystalline thin ribbon to obtain nanocrystalline metal powder, and then dividing the nanocrystalline metal powder into A and B materials according to the weight ratio of 30% and 70%;

[0018] (3) Take material A, add 0.6% γ-(methacryloyloxy)propyl trimethoxyalane and 3% mica powder, mix at a high speed of 1500...

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
Bandwidthaaaaaaaaaa
With thickaaaaaaaaaa
Login to View More

Abstract

The invention discloses a low-cost Fe-Si-B-Cu-Nb-Al-Ni nanocrystalline magnetic core preparation method for a high-frequency electronic transformer. The method specifically comprises the following steps of performing vacuum isothermal annealing on an iron-based amorphous thin strip to obtain a nanocrystalline thin strip; crushing the obtained nanocrystalline thin strip to obtain nanocrystalline metal powder; classifying the nanocrystalline metal powder into unequal parts of materials A and B; adding gamma-(methacryloxypropyl) trimethoxy aluminoxane and mica powder into the material A for treatment, and treating the material B sequentially by using triethanolamine, aluminum nitride, hexamethylenetetramine and polyvinyl alcohol; uniformly mixing the treated materials A and B, adding a sodium aluminate aqueous solution, performing compression molding, coating the surface of a molded magnetic core with magnetic core glue G500, and performing curing to obtain a finished product. According to the method, Nb is added into the magnetic core, so that the saturation magnetic induction intensity of the magnetic core is favorably improved; Al is added, so that the coercive force is favorably reduced; in addition, the production cost of a FeSiBCuNb magnetic core can be remarkably lowered.

Description

technical field [0001] The invention relates to a preparation method of a Fe-Si-B-Cu-Nb-Al-Ni low-cost nanocrystalline magnetic core for a high-frequency electronic transformer, and belongs to the technical field of magnetic materials. Background technique [0002] Iron-based nanocrystalline soft magnetic materials have high saturation magnetic induction, high permeability, low coercivity and low high-frequency loss, good hardness, wear resistance and corrosion resistance, good temperature and environmental stability, and their comprehensive The magnetic properties are far superior to those of aluminum steel, ferrite, permalloy and amorphous alloy. Among them, FeCuNbSiB nanocrystalline magnetic core contains precious metal Nb, and its production cost is high, which is not conducive to competition with soft magnetic materials such as aluminum steel. SUMMARY OF THE INVENTION [0003] In order to solve the above-mentioned technical problems, the purpose of the present invent...

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): H01F41/02H01F1/147B22F3/02
Inventor 李新满
Owner TONGLING SANJIA TRANSFORMER
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