Amorphous nanocrystalline alloy thin strip and preparation method thereof

A technology of amorphous nanocrystals and thin strips, which is applied in the direction of magnetic materials, electrical components, circuits, etc., can solve the problems of increasing the brittleness of amorphous nanocrystal thin strips, reduce material costs, increase saturation magnetic induction intensity, and have good stability Effect

Active Publication Date: 2015-07-29
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN 101629265 A Chinese patent discloses a low-cost, high soft magnetic performance Fe-based nanocrystalline soft magnetic alloy, adding P and Cu to act simultaneously to obtain fine dispersion of nanocrystals after crystallization and annealing, but too high a content of P will increase the amount of amorphous Nanocrystalline Ribbon Brittleness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Raw material preparation: Fe powder, Cu wire, Mo block, Si block, and FeV, FeB, and FeP alloys with a purity of not less than 99% are sequentially prepared in a molar ratio of 61.9:1:2.5:12:0.5:10.5: 0.3 Formulated into alloy raw materials;

[0032] 2) Making ingots: Put the configured master alloy raw materials into a vacuum intermediate frequency induction melting furnace, and put them in a vacuum of 3×10 -3 The raw materials were smelted for 10 minutes at Pa, 1350°C, stirring continuously during the smelting process to ensure that the composition of the alloy was uniform, and the alloy ingots were cast into alloy ingots after repeated smelting for 4 times;

[0033] 3) Make thin strips: crush the alloy ingots obtained by smelting, put them into acetone and alcohol solutions for ultrasonic cleaning, and dry them in the air. Using the single-roller melting and quenching method, the spraying temperature is 1200 °C, and the rolling speed of the roll surface is 35m / s,...

Embodiment 2

[0037] 1) Raw material preparation: The raw materials of Fe powder, Cu wire, Mo block, Si block and FeV, FeB and FeP alloys with a purity of not less than 99% are sequentially prepared in a molar ratio of 61.4:1:2:12:1:10.5: 0.3 Formulated into alloy raw materials;

[0038] 2) Making ingots: Put the master alloy raw materials with a good ratio into a vacuum intermediate frequency induction melting furnace, and put them in a vacuum of 4×10 -3 Pa, smelting the raw materials at 1400°C for 10 minutes, stirring continuously during the smelting process to ensure that the composition of the alloy is uniform, and pouring into alloy ingots after repeated smelting for 4 times;

[0039] 3) Make thin strips: crush the alloy ingots obtained by smelting, put them into acetone and alcohol solutions for ultrasonic cleaning, and dry them in the air. Using the single-roller melting and quenching method, the spraying temperature is 1300 °C, and the rolling speed of the roll surface is 40m / s, t...

Embodiment 3

[0043] 1) Raw material preparation: The raw materials of Fe powder, Cu wire, Mo block, Si block and FeV, FeB and FeP alloys with a purity of not less than 99% are sequentially prepared in a molar ratio of 60.9:1:1.5:12:1.5:10.5: 0.3 Formulated into alloy raw materials;

[0044] 2) Making ingots: Put the configured master alloy raw materials into a vacuum intermediate frequency induction melting furnace, and put them in a vacuum of 3×10 -3 The raw materials were smelted for 6 minutes at Pa, 1400°C, stirring continuously during the smelting process to ensure that the composition of the alloy was uniform, and the alloy ingot was cast after repeated smelting for 3 times;

[0045] 3) Make thin strips: crush the alloy ingots obtained by smelting, put them into acetone and alcohol solutions for ultrasonic cleaning, and dry them in the air. Using the single-roller melting and quenching method, the spraying temperature is 1250 °C, and the rolling speed of the roll surface is 38m / s, t...

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Abstract

The invention provides an amorphous nanocrystalline alloy thin strip and a preparation method thereof. The expression formula of composition of alloy is Fe73.2Cu1Mo(3-x)VxSi12B10.5P0.3, wherein x is greater than 0 and is not greater than 2.5. The method comprises the steps: smelting raw materials which are proportioned according to the ratio of all elements in the alloy, and casting, so as to form an alloy ingot; carrying out strip-spinning by using a single-roller melt-quenching method, so as to prepare an amorphous thin strip; finally, carrying out crystallization heat treatment, thereby obtaining the amorphous nanocrystalline alloy thin strip. According to the alloy thin strip prepared by the technical scheme of the invention, the saturated magnetic induction intensity is not lower than 1.4T, the preparation process is simple, the cost of the alloy is low, and the prepared amorphous nanocrystalline alloy thin strip has the performance characteristics of high-frequency low iron loss, high magnetic permeability and good stability.

Description

technical field [0001] The invention belongs to the technical field of soft magnetic materials and their preparation, and in particular relates to an amorphous nanocrystalline soft magnetic alloy material and a preparation method thereof. Background technique [0002] High-end power electronic equipment is the key equipment to promote the development of smart grid technologies such as direct current transmission and intelligent power distribution. The development and application of new soft magnetic materials of amorphous nanocrystalline alloys with high frequency, low iron loss, high magnetic induction, and high magnetic permeability are important Various transformers, reactors, transformers and accelerators are inevitable for the development of pulse power magnetic components technology. [0003] Typical amorphous and nanocrystalline materials began in 1988 with the composition of Fe developed by Yashizawa et al. 73.5 Cu l Nb 3 Si 13.5 B 9 Finemet alloy, this alloy is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02C22C38/16H01F1/153B22D11/06C21D1/26
Inventor 吴雪马光杨富尧程灵高洁韩钰陈新祝志祥聂京凯
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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