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Heat treatment method for ultracrystalline magnetic core

A heat treatment method and ultrafine crystal technology, applied in heat treatment furnaces, heat treatment equipment, heat treatment process control, etc., can solve problems such as inapplicable heat treatment of ultrafine crystal magnetic cores, and achieve superior magnetic core performance, improved performance, and full temperature balance Effect

Active Publication Date: 2012-02-29
QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing heat treatment process of magnetic cores, such as the invention patent of patent application number 92102499.1, is the heat treatment of traditional magnetic cores, and is not suitable for the heat treatment of ultramicrocrystalline magnetic cores

Method used

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  • Heat treatment method for ultracrystalline magnetic core
  • Heat treatment method for ultracrystalline magnetic core

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Embodiment Construction

[0021] The present invention will be described below in conjunction with the accompanying drawings.

[0022] Such as figure 1 as shown, figure 1 It is a schematic diagram of the heat treatment method shown in the present invention.

[0023] The invention provides a kind of heat treatment method of ultramicrocrystalline magnetic core, wherein, comprise the following steps:

[0024] Non-magnetic field annealing and argon protection are used in the heat treatment of ultrafine crystal cores: firstly, when the annealing holding time t is fixed, different annealing temperatures are set respectively, and the annealing temperatures are set to 520, 530, 540, 550, 560 , 570, 580, 590, and 600°C were tested in 9 conditions, and then compared the test results to find out the optimal annealing temperature T;

[0025] Then, when the optimal annealing temperature T is constant, different settings are made on the holding time, and the tests are respectively set to 15, 30, 45, and 60 minute...

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Abstract

The invention discloses a heat treatment method for an ultracrystalline magnetic core. The method comprises the following steps of: annealing in a non-magnetic field mode during the heat treatment of the ultracrystalline magnetic core, and protecting by using argon, namely setting different annealing temperatures under the condition of a certain annealing heat-preserving time t, testing at the nine temperatures of 520 DEG C, 530 DEG C, 540 DEG C, 550 DEG C, 560 DEG C, 570 DEG C, 580 DEG C, 590 DEG C and 600 DEG C, comparing test results, and finding the optimum annealing temperature T; setting the heat-preserving time under the condition of a certain optimum annealing temperature T, testing within 15 minutes, 30 minutes, 45 minutes and 60 minutes, comparing test results under different kinds of heat-preserving time, and finding the optimum heat-preserving time t; and drawing a conclusion, wherein the optimum annealing temperature is between 560 and 570 DEG C, and the optimum heat-preserving time is 60 minutes. The heat treatment method is simple, the performance of the magnetic core subjected to the heat treatment is high, and property parameters of the ultracrystalline magnetic core are far higher than standard parameters, so the properties of products with the magnetic core can be improved greatly, and the cost of the products can be reduced.

Description

Technical field: [0001] The invention relates to the field of amorphous manufacturing technology, in particular to a heat treatment method for ultrafine crystal magnetic cores suitable for inductors and transformers. Background technique: [0002] Ultrafine crystal materials are gradually recognized by people for their superior magnetic properties, high strength toughness, flexible processing technology, energy saving and environmental protection, and are widely used in aviation, communication, power electronics and other fields, mainly used to replace silicon steel , Permalloy and ferrite are used as iron cores or magnetic cores for filters, transformers and inductance products. The magnetic performance requirements of ultrafine-crystalline magnetic cores in different products can be obtained by adopting different heat treatment processes, so whether the heat treatment process is suitable or not plays a decisive role in the magnetic properties of ultra-fine-crystalline magn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/26C21D9/00C21D11/00H01F41/02
Inventor 李晓雨刘凤芹
Owner QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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