Iron base sub-nanometer alloy with excellent manufacturability and preparation method thereof

A nano-alloy and production process technology, which is applied in the field of new sub-nanometer soft magnetic alloy materials, can solve the problems of uneven structure, harsh preparation conditions, and coarse α-Fe grains, etc., and achieve short heat treatment time and stable heat treatment process , The effect of high saturation magnetic induction

Active Publication Date: 2017-09-19
NINGBO ZHONGKE BIPULASI NEW MATERIAL TECH CO LTD
View PDF9 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is to propose an innovative solution for the shortcomings of the above-mentioned prior art to effectively solve the existing high B S Nanocrystalline soft magnetic alloys have strict requirements on preparation conditions, and are prone to problems such as uneven structure and formation of coarse α-Fe grains in the process of production, preparation and heat treatment, and provide a good production process and excellent soft magnetic properties. Novel alloy of the present invention——iron-based subnano-alloy and its preparation method
[0008] For high B S Nanocrystalline so

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
  • Iron base sub-nanometer alloy with excellent manufacturability and preparation method thereof
  • Iron base sub-nanometer alloy with excellent manufacturability and preparation method thereof
  • Iron base sub-nanometer alloy with excellent manufacturability and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: In this embodiment, the chemical formula of the iron-based sub-nanometer alloy is Fe 77 Si 4 B 16.5 Cu 1.2 Zr 1.3 .

[0046] The preparation of the iron-based sub-nanometer alloy and its subsequent heat treatment method are as follows:

[0047] (1) Fe, Si, Cu, Zr and Fe-B alloy raw materials with a purity greater than 99% are batched according to the chemical formula of the alloy composition;

[0048] (2) Place the raw materials prepared in step (1) in a high-frequency induction melting furnace, and vacuumize to 1×10 -2 Below Pa, then fill in an appropriate amount of high-purity argon, melt the prepared raw materials in an argon atmosphere, and keep warm for 30 minutes after all the raw materials are melted, so that the alloy raw materials can be melted evenly, and then pour the molten steel into the casting copper mold , cooling to obtain a master alloy ingot;

[0049] (3) Break the master alloy ingot, put an appropriate amount into a quartz tube w...

Embodiment 2-7

[0057] The specific composition of each alloy is shown in Table 1.

[0058] The preparation, heat treatment, structure and performance testing process of the sub-nanometer alloy strip in this series of embodiments, except that the smelting temperature, the speed of the strip-making copper roll and the heat treatment process parameters are different from those in Example 1, the remaining methods and process parameters are the same as those in Example 1. The same as that of embodiment 1.

[0059] The main magnetic performance indicators of the alloy strips in this series of examples before and after heat treatment are shown in Table 1. As can be seen from the table, after heat treatment, the B of all the example alloys S significantly increased, and H c Significantly decreased, the comprehensive soft magnetic performance has been significantly improved.

Embodiment 8

[0060] Embodiment 8: In this embodiment, the chemical formula of the iron-based sub-nanometer alloy is Fe 78 Si 4 B 16 Cu 1.3 Ti 0.7 .

[0061] The preparation of the iron-based sub-nanometer alloy and its subsequent heat treatment method are as follows:

[0062](1) Fe, Si, Cu, Ti and Fe-B alloy raw materials with a purity greater than 99% are batched according to the chemical formula of the alloy composition;

[0063] (2) Place the raw materials prepared in step (1) in a high-frequency induction melting furnace, and vacuumize to 1×10 -2 Below Pa, then fill in an appropriate amount of high-purity argon, melt the prepared raw materials in an argon atmosphere, and keep warm for 30 minutes after all the raw materials are melted, so that the alloy raw materials can be melted evenly, and then pour the molten steel into the casting copper mold , cooling to obtain a master alloy ingot;

[0064] (3) Break the master alloy ingot, put an appropriate amount into a quartz tube with...

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
Coercivityaaaaaaaaaa
Sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses an iron base sub-nanometer alloy with excellent manufacturability and a preparation method thereof. A component formula of the alloy is FeaSibBcCudMeXf, wherein M is at least one element of Ti, Zr and Hf; and X is at least one element of C, Ge, V, Cr, Mn, Mo, W, Zn and Sn, and satisfies the following conditions: a is not more than 86 and not less than 75, b is not more than 9 and not less than 2, c is not more than 20 and not less than 10, d is not more than 3 and more than 0, e is not more than 3 and more than 0, f is not more than 2 and not less than 0, e/d is not more than 2 and more than 0.5, and a+b+c+d+e+f=100. The alloy is prepared into a quenching-state strip by a melt quick quenching method, and a lot of alpha-Fe grains and atom clusters with sub-nanometer sizes are dispersed therein; and after the quenching-state strip is heated under proper conditions, a lot of alpha-Fe grains with nanometer sizes can be further separated out, and such excellent soft magnetic properties as high saturated magnetic induction strength, low loss and high magnetic conductivity are achieved. The novel alloy contains no Nb and volatile P elements, and is lower in cost and excellent in production process. A crystallization process of the series of alloy adopts quick heat treatment to prominently improve industrial production efficiency.

Description

technical field [0001] The invention relates to soft magnetic materials in the field of functional materials, in particular to a novel subnano soft magnetic alloy material. Background technique [0002] At present, the magnetic core materials commonly used in electric power and electronic devices mainly include silicon steel, ferrite, permalloy, amorphous soft magnetic alloy and nanocrystalline soft magnetic alloy. Amorphous and nanocrystalline soft magnetic alloys have higher saturation magnetic induction (B S ), low loss and high magnetic permeability, and has been widely used in energy-saving, high-efficiency, and high-precision power electronic devices in recent years. [0003] At present, power electronic devices are developing in the direction of energy saving, miniaturization, high efficiency and high precision, which puts forward higher requirements on the performance of the magnetic core material which plays the role of electromagnetic conversion function, and has ...

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): C22C45/02C22C1/03H01F1/153
CPCH01F1/14766H01F1/15333H01F1/15341C22C1/03C22C45/02C22C1/11
Inventor 门贺郭海霍利山
Owner NINGBO ZHONGKE BIPULASI NEW MATERIAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap