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Magnetic heat treatment method applicable to annular devices

A heat treatment method and device technology, applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve the problems of uneven temperature field distribution, poor controllability of magnetic field, and difficult magnetic field heat treatment of annular devices, so as to shorten heat treatment time and reduce energy consumption. , Precisely control the effect of heating power

Active Publication Date: 2017-01-11
马鞍山延隆新材料科技有限公司
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Problems solved by technology

[0006] In order to overcome the problems mentioned in the above technical background, that is, the poor controllability of the magnetic field, the difficulty in implementing the magnetic field heat treatment of the annular device, and the uneven distribution of the temperature field, etc., the present invention proposes a magnetic field heat treatment method for the annular magnetic material device. The magnetic field generated by the heating element itself can solve these problems well

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  • Magnetic heat treatment method applicable to annular devices
  • Magnetic heat treatment method applicable to annular devices
  • Magnetic heat treatment method applicable to annular devices

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. However, the present invention is not limited to the following examples.

[0037] The present invention proposes a magnetic field heat treatment method for annular magnetic material devices, and the specific steps are as follows:

[0038] (1) Calculate the current I flowing through the linear heating element 8 according to the size of the required magnetic field strength H by the following (a),

[0039] I=2πR w H (a)

[0040] where R w is the outer radius of the ring device. It should be noted that the current I should not be less than 2πR w H, otherwise the magnetic field strength H at the outer radius of the ring device will be too small, which cannot meet the corresponding process requirements. However, at this time, the inner radius R of the ring device n The magnetic field strength will be significantly higher than the outer radius R ...

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Abstract

The invention discloses a magnetic heat treatment method applicable to annular devices, and belongs to the technical field of material engineering. The magnetic heat treatment method applicable to annular devices comprises the steps of firstly, calculating the electric current I which flows through a linear heating element according to the needed magnetic field intensity H; then calculating the radical of the linear heating element further according to the total power of a heat treatment furnace; an annular device is arranged on the linear heating element in a sleeving manner, and placing the annular device and the linear heating element together into the furnace body; and at last, vacuumizing the furnace body, adding shielding gas, setting the heat treatment time, and carrying out magnetic heat treatment on the annular device in the furnace body. The heating treatment apparatus needed in the magnetic heat treatment method applicable to annular devices is composed of the furnace body and the linear heating element, no magnetic poles are needed, and a toroidal magnetic field is generated by the direct current carried by the linear heating element. With the magnetic heat treatment method applicable to annular devices, on one side, the problem that annular devices cannot be treated with a traditional method is solved, on the other side, the technological parameters of magnetic heat treatment can be accurately controlled, and therefore, to some extent, the efficiency can be improved, and energy consumption can be reduced.

Description

technical field [0001] The invention belongs to the technical field of material engineering, and in particular relates to a heat treatment method by applying a magnetic field. This method utilizes the magnetic field generated by the heating element itself, and can conveniently carry out magnetic field heat treatment on ring-shaped magnetic material devices. energy consumption. Background technique [0002] In order to obtain more excellent magnetic properties in a specific direction, a magnetic field of a certain strength is usually applied in a certain direction during the heat treatment of the magnetic material and its fabricated devices, which is the so-called magnetic field heat treatment. Although both soft magnetic and hard magnetic materials can be subjected to magnetic field heat treatment, most of the industrial production is for soft magnetic materials. After magnetic field heat treatment, the magnetic domains will be arranged roughly along the direction of the a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/40C21D1/04
CPCC21D1/04C21D9/40
Inventor 王建国周方颖李维火
Owner 马鞍山延隆新材料科技有限公司
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