Fe-Si-B-Nb-Cu iron-based amorphous/nanocrystalline soft magnetic alloy material and preparing and heat treatment process

A nanocrystalline soft magnetic, iron-based amorphous technology, applied in the direction of magnetic materials, heat treatment furnaces, heat treatment equipment, etc., can solve the problems of poor vacuum conditions, increased raw material costs, narrow temperature range, etc., to solve the cost The effect of long time, improving anti-oxidation ability and ensuring temperature consistency

Active Publication Date: 2017-11-21
广东咏旺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the master alloy needs to be directly smelted and sprayed into a complete amorphous structure, followed by a heat treatment process to form a new nanocrystalline grain structure, but the heat treatment temperature is 550-580 ° C, and the temperature range is relatively narrow. , so there is a problem that the grain grows faster; in order to control the crystallization point of the heat treatment process, copper atoms that promote crystallization and niobium elements that inhibit grain growth are added to play a certain role in the heat treatment process. The eff

Method used

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  • Fe-Si-B-Nb-Cu iron-based amorphous/nanocrystalline soft magnetic alloy material and preparing and heat treatment process

Examples

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Embodiment 1

[0032] Example 1 - Preparation of a Fe-Si-B-Nb-Cu iron-based amorphous / nanocrystalline soft magnetic alloy material and its heat treatment process: including material composition design, strip spraying and strip heat treatment process parts, specifically Proceed as follows:

[0033] 1. Material composition design

[0034] The composition of Fe-Si-B-Nb-Cu iron-based amorphous / nanocrystalline soft magnetic alloy material is: iron Fe 81%, silicon Si 9.5%, boron B 1.8%, niobium Nb 4.2%, copper Cu 1.4% , molybdenum Mo 1.5%, nickel Ni 0.1% and chromium Cr 0.5%. Namely: Fe 81 Si 9.5 B 1.8 Nb 4.2 Cu 1.4 Mo 1.5 Ni 0.1 Cr 0.5

[0035] 2. Strip spraying

[0036] Firstly, the raw materials are prepared according to the ratio of the elements in the design, and the master alloy is smelted by non-vacuum in an intermediate frequency furnace; secondly, the master alloy is remelted and prepared into an alloy strip with a thickness of 26 microns and a width of 25mm by gravity spraying...

Embodiment 2

[0043] Example 2 - Preparation of a Fe-Si-B-Nb-Cu iron-based amorphous / nanocrystalline soft magnetic alloy material and its heat treatment process: including material composition design, strip spraying and strip heat treatment process parts, specifically Proceed as follows:

[0044] 1. Material composition design

[0045] The composition of Fe-Si-B-Nb-Cu iron-based amorphous / nanocrystalline soft magnetic alloy material is: iron Fe 83%, silicon Si 8.5%, boron B 2%, niobium Nb 3%, copper Cu 2% , molybdenum Mo 1% and nickel Ni 0.5%. Namely: Fe 83 Si 8.5 B 2 Nb 3 Cu 2 Mo 1 Ni 0.5

[0046] 2. Strip spraying

[0047] Firstly, the raw materials are prepared according to the proportion of the elements in the design, and the master alloy is smelted by non-vacuum in the intermediate frequency furnace; secondly, the master alloy is remelted and prepared into an alloy strip with a thickness of 31 microns and a width of 40mm by gravity spraying technology; finally, the alloy stri...

Embodiment 3

[0054] Example 3 - Preparation of a Fe-Si-B-Nb-Cu iron-based amorphous / nanocrystalline soft magnetic alloy material and its heat treatment process: including material composition design, strip spraying and strip heat treatment process parts, specifically Proceed as follows:

[0055] 1. Material composition design

[0056] The composition of Fe-Si-B-Nb-Cu iron-based amorphous / nanocrystalline soft magnetic alloy material is: iron Fe 81.6%, silicon Si 9%, boron B 1.5%, niobium Nb 4.5%, copper Cu 1%, molybdenum Mo 2% and Chromium Cr 0.4%. Namely: Fe 81.6 Si 9 B 1.5 Nb 4.5 Cu 1 Mo 2 Cr 0.4

[0057] 2. Strip spraying

[0058] Firstly, the raw materials are prepared according to the ratio of the elements in the design, and the master alloy is smelted by non-vacuum in the intermediate frequency furnace; secondly, the master alloy is remelted and prepared into an alloy strip with a thickness of 36 microns and a width of 5mm by gravity spraying technology; finally, the alloy s...

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Abstract

The invention discloses an Fe-Si-B-Nb-Cu iron-based amorphous/nanocrystalline soft magnetic alloy material and a preparing and heat treatment process. The Fe-Si-B-Nb-Cu iron-based amorphous/nanocrystalline soft magnetic alloy material comprises following composition elements including, by mass percent, 81 to 83% of Fe, 8.5 to 9.5% of Si, 1.5 to 2% of B, 3 to 4.5% of Nb, 1 to 2% of Cu, 1 to 2% of Mo, 0 to 0.5% of Ni and 0 to 0.5% of Cr. A small amount of metal elements of Mo, Ni and Cr is introduced into the Fe-Si-B-Nb-Cu system, the better amorphous forming capacity of the Fe-Si-B-Nb-Cu iron-based amorphous/nanocrystalline soft magnetic alloy material is ensured, through the heat treatment process, an alloy strip of an amorphous structure is obtained, in the strip spraying and heat treatment process, the oxidation resistance capacity is better, in the heat treatment process, atmosphere protection is facilitated, temperature consistency is improved, product performance discreteness is reduced, and the beneficial effects of being high in heat treatment efficiency and good in toughness are achieved.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to Fe-Si-B-Nb-Cu iron-based amorphous / nanocrystalline soft magnetic alloy material and its preparation and heat treatment process. Background technique [0002] The iron-based nanocrystalline magnetic core is processed through a series of links such as formula design, base metal smelting, strip spraying, winding into rings, and heat treatment. With the rapid development of the field of power electronics, the requirements for magnetic materials are getting higher and higher, and the requirements for the functional properties of materials are becoming more and more special. With the rapid development of rail transit systems, safety monitoring systems, new energy vehicle power systems, wireless charging systems, etc., the demand for special soft magnetic materials such as high-power power electronic transformers, inductors, and reactances in the 1K-500K frequency band is i...

Claims

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Application Information

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IPC IPC(8): C22C45/02C21D6/00C21D1/26C21D9/00H01F1/153
CPCC21D1/26C21D6/008C21D9/0068C21D2201/03C22C45/02C22C2200/02C22C2200/04H01F1/153
Inventor 郑立宝唐俊祥陈炽祥
Owner 广东咏旺新材料科技有限公司
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