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Heat treatment process of an amorphous soft magnetic material

A soft magnetic material, amorphous technology, applied in the field of amorphous soft magnetic material and its heat treatment process, can solve the problem of not meeting production requirements, and achieve the effects of excellent soft magnetic performance, low high frequency loss, and high magnetic permeability

Pending Publication Date: 2018-11-13
江苏墨泰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The magnetic flux of the existing magnetic flux absorbing materials cannot meet the production requirements

Method used

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  • Heat treatment process of an amorphous soft magnetic material
  • Heat treatment process of an amorphous soft magnetic material
  • Heat treatment process of an amorphous soft magnetic material

Examples

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Effect test

no. 1 example

[0053] This embodiment provides a heat treatment process for amorphous soft magnetic materials, which includes three steps of staged heating, heat preservation and staged cooling in a magnetic field furnace equipped with amorphous soft magnetic materials.

[0054] First, the staged cooling step:

[0055] The first stage of heating: the first stage is to raise the temperature from room temperature (25°C) to 200°C, and the heating time is 40 minutes; the second stage is to raise the temperature from 200°C to the first annealing temperature of 450°C, and the annealing time is 80 minutes;

[0056] The second stage of heating: from the first annealing temperature of 450°C to 470°C, the annealing time is 60min;

[0057] The third heating stage: from the second annealing temperature of 470°C to the third annealing temperature of 540°C, and the annealing time is 50 minutes.

[0058] Then, carry out the insulation step:

[0059] The amorphous soft magnetic material after heating up i...

no. 2 example

[0066] This embodiment provides a heat treatment process for an amorphous soft magnetic material, which is substantially the same as the heat treatment process provided in the first embodiment, except that the parameters are different, and the differences are as follows:

[0067] First, the staged cooling step:

[0068] The first stage of heating: the first stage is to raise the temperature from room temperature (20°C) to 190°C, and the heating time is 35 minutes; the second stage is to raise the temperature from 190°C to the first annealing temperature of 445°C, and the annealing time is 75 minutes;

[0069] The second stage of heating: from the first annealing temperature of 445°C to 465°C, the annealing time is 55min;

[0070] The third heating stage: from the second annealing temperature of 465°C to the third annealing temperature of 535°C, the annealing time is 45min.

[0071] Then, carry out the insulation step:

[0072] The amorphous soft magnetic material after heati...

no. 3 example

[0079] This embodiment provides a heat treatment process for an amorphous soft magnetic material, which is roughly the same as the heat treatment process provided in the first to second embodiments, the difference lies in the different parameters, and the differences are as follows:

[0080] First, the staged cooling step:

[0081] The first stage of heating: the first stage is to raise the temperature from room temperature (23°C) to 205°C, and the heating time is 45 minutes; the second stage is to raise the temperature from 205°C to the first annealing temperature of 455°C, and the annealing time is 85 minutes;

[0082] The second stage of temperature rise: from the first annealing temperature of 455°C to 475°C, the annealing time is 65min;

[0083] The third heating stage: from the second annealing temperature of 475°C to the third annealing temperature of 545°C, and the annealing time is 55 minutes.

[0084] Then, carry out the insulation step:

[0085] The amorphous soft...

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Abstract

The embodiment of the invention relates to the field of wireless charging, and provides a heat treatment process of an amorphous soft magnetic material, which comprises the following steps: in a magnetic field furnace containing an amorphous soft magnetic material, a sectional temperature rise is carried out, and the sectional temperature rise includes a first stage temperature rise, a second stage temperature rise and a third stage temperature rise. Wherein the first annealing temperature of the first heating step is 445 DEG C to 455 DEG C; the second annealing temperature of the second heating step is 465-475 DEG C; the third annealing temperature of the third heating step is 535 - 545 DEG C. In the heat treatment process, the heat treatment process of segmented heating makes the soft magnetic materials have excellent soft magnetic properties, high permeability, high magnetic inductance, low high frequency loss, reduce coercivity and other excellent properties. In addition, the invention also provides an amorphous soft magnetic material, which has excellent soft magnetic properties after the heat treatment process.

Description

technical field [0001] The invention relates to the field of wireless charging, in particular to an amorphous soft magnetic material and a heat treatment process thereof. Background technique [0002] With the rapid development of electronic technology, wireless charging technology is more and more widely used. Wireless charging is not only very convenient, but also safer than wired charging, because there are no exposed connectors, and there are no safety hazards such as leakage. Wireless charging Smarter than ordinary chargers. For different electronic products, the power interface can automatically correspond. When it needs to work, the transmitter and the receiving chip can automatically start working at the same time. After the two parties are fully charged, the power will be automatically cut off, which is conducive to safety and energy saving. Use Very convenient. The magnetic flux of the existing magnetic flux absorbing materials cannot meet the production requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/153
CPCH01F1/15341
Inventor 吴国明
Owner 江苏墨泰新材料有限公司
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