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

Amorphous soft magnetic alloy and inductance component using the same

A soft magnetic alloy and amorphous technology, which is applied in the field of powder, components and parts, strip, and strip, can solve the problems of low content of iron-based elements, high heat treatment temperature, difficult powder, etc.

Active Publication Date: 2009-11-04
TOKIN CORP +1
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the amorphous-forming ability is not sufficient according to any of the ingredients, it is difficult to produce a powder by the water atomization method or the like
In addition, if an inexpensive iron-nickel alloy material or the like containing impurities is used, it is expected to lower the amorphous formation ability, thereby reducing the uniformity of the amorphous, thus resulting in weakening of the soft magnetic properties
Also as far as Fe-based metallic glasses are concerned, although their respective amorphous-forming abilities are very strong, because they contain a large amount of non-metallic components and the content of iron-based elements is very low, it is difficult to satisfy their magnetic properties at the same time. requirements
In addition, due to the high glass transition temperature, there will also be problems such as an increase in heat treatment temperature.

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
  • Amorphous soft magnetic alloy and inductance component using the same
  • Amorphous soft magnetic alloy and inductance component using the same
  • Amorphous soft magnetic alloy and inductance component using the same

Examples

Experimental program
Comparison scheme
Effect test

example

[0081] The present invention will be explained in detail below by way of examples.

[0082] (Examples 1 to 15)

[0083] The pure metal materials Fe, P, B, Al, V, Cr, Y, Zr, Nb, Mo, Ta and W were weighed respectively according to the predetermined alloy composition, and then the high It is melted by frequent heating, thereby producing a master alloy. After that, using the prepared master alloy, strips having thicknesses of 20 μm and 200 μm, respectively, were prepared by adjusting the rotation speed using a single roll method.

[0084] For comparison, a master alloy with the same composition as commercial METGLAS 2605-S2 was produced by high frequency heating, and then 20 μm and 200 μm strips were formed using a single roll method.

[0085] For each 200μm strip, the X-ray diffraction method was used to measure the slowest cooling free solidification surface not in contact with the copper roll, thereby obtaining an X-ray diffraction test pattern. When the obtained X-ray diffra...

example 133

[0149] In Example 133, a water atomization method was used to obtain Fe with a composition of 77 P 10 B 10 Nb 2 Cr 1 Ti0.1 C 0.1 Mn 0.1 Cu 0.1 The resulting alloy powder was then classified into a particle size of 45 μm or less, and then subjected to XRD measurement, after which a broad peak specific to the amorphous phase was determined. In addition, thermal analysis was performed by DSC to measure glass transition temperature (Tg) and crystallization temperature (Tx), whereby ΔTx (Tg-Tx) was determined to be 36°C. Then, the powder was kept at a temperature lower than the glass transition temperature of 400° C. to perform heat treatment in the atmosphere for 0.5 hours, thereby forming oxides on the surface of the powder.

[0150] In addition, a silicone resin as a binder was added to the oxide-formed powders in amounts of 5%, 2.5%, 1%, and 0.5%, respectively, to obtain respective powders. Using a pressed part with a groove with an outer diameter of 27mm and an inner d...

example 134

[0155] In Example 134, an inductive part corresponding to the 10th sample in Example 133 was prepared using the same alloy powder and the same manufacturing process and subjected to a heat treatment at 450°C for 0.5 hours in a nitrogen atmosphere High-frequency magnetic cores to manufacture inductive components. In addition, for comparison, an inductance component was produced using Al-Si-Fe powder as a magnetic core material, 6.5% silicon steel, and Fe-based amorphous material. Each inductive component is as figure 2 shown, but can also be as Figure 4 Inductive components shown with notches in part of the magnetic circuit. For each of these inductive components, for the magnetic flux density (at 1.6×10 4 A / m), DC resistivity (Ω·cm), permeability for normalization of inductance value, and core loss (20kHz 0.1T) were measured. The results are shown in Table 15.

[0156] It can be understood from Table 15 that the magnetic flux density of the inductance part of the presen...

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
areaaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

An amorphous soft magnetic alloy belt material prepared by the amorphous soft magnetic alloy is disclosed. The amorphous soft magnetic alloy has a composition expressed by a formula of (Fe1-alphaTMalpha)100-w-x-y-zPwBxLySiz, wherein unavoidable impurities are contained, TM is at least one selected from Co and Ni, L is at least one selected from the group consisting of Al, V, Cr, Y, Zr, Mo, Nb, Ta, and W, 0<=alpha0.98, 2<=w<=16 at %, 2<=x<=16 at %, 0<y<=10 at %, and 0<=z<=8 at %). The depth of the amorphous soft magnetic alloy is 0.5mm or more, and the surface of the transversal surface is 0.15 mm or more.

Description

[0001] This application is a divisional application of a patent application (application date of February 2, 2007, application number 200710006386.7, and the name of the invention is "Amorphous Soft Magnetic Alloy and Inductor Components Using Such Alloy"). technical field [0002] The present invention relates to an amorphous soft magnetic alloy, and also to bars, strips, powders, components and parts using the alloy. Background technique [0003] Amorphous magnetic alloys started with Fe-P-C, and then developed low-loss material Fe-Si-B, high saturation magnetic flux density (Bs) material Fe-B-C, etc. These materials have been expected as transformer materials due to low losses, but have not been widely used because of their high cost and low Bs compared to conventional materials such as silicon steel sheets. In addition, since these amorphous alloys require a cooling rate of 10 5 K / sec or higher, so only strips with a thickness of only about 200 μm (laboratory maximum) c...

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): H01F1/153C22C45/00H01F41/02H01F27/24H01F17/04
Inventor 浦田显理藤原照彦松元裕之山田健伸井上明久
Owner TOKIN CORP
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