Magnetic heat treatment method applicable to annular devices

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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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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