High-safety machining technology of samarium cobalt magnet

A high-safety, samarium-cobalt magnet technology, applied in the direction of magnetic materials, magnetic objects, inorganic materials, etc., can solve the problems of prolonged product release time, affecting production efficiency, long time, etc., to ensure product quality and safety, improve efficiency , Guarantee the effect of quality and safety

Inactive Publication Date: 2018-11-13
绵阳信和磁性材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is impossible to cool by conventional air-cooling means. In this case, it often takes a long time to lower the temperature to the furnace opening temperature, resulting in a greatly extended time for each batch of products to be released, which affects production efficiency.

Method used

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  • High-safety machining technology of samarium cobalt magnet
  • High-safety machining technology of samarium cobalt magnet

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Experimental program
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Embodiment Construction

[0020] combine figure 1 and 2 As shown, the vacuum sintering machine used in the sintering process of the present invention includes a vacuum sintering furnace 1 and a cooling device for cooling the vacuum sintering furnace 1. The vacuum sintering furnace 1 is used for sintering NdFeB raw materials. The structure of the vacuum sintering furnace 1 is a prior art, and will not be repeated here. Such as figure 1 As shown, the cooling device includes a gas cylinder 2, a cooling water tank 3 and a condensation tank 4. The gas cylinder 2 is used to store inert gas, the cooling water tank 3 is used to store cooling water, and the condensation tank 4 is used to condense evaporated water. A heat exchange mechanism is provided in the cooling water tank 3, and the heat exchange mechanism may be a conventional heat exchange coil or other structures that play the same role.

[0021] In order to ensure the heat transfer performance of the heat transfer mechanism, a better approach is, s...

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Abstract

The invention relates to the technical field of samarium cobalt magnet machining, and provides a high-safety machining technology of a samarium cobalt magnet. By means of the technology, the yield andmachining speed of the samarium cobalt magnet can be effectively improved. The high-safety machining technology of the samarium cobalt magnet comprises the following steps of A, smelting, wherein samarium, cobalt, copper, iron, zirconium and aluminum are added into a vacuum induction furnace for smelting in the mass ratio of 20:35:12:20:3:0.5; B, powder preparation; C, formation of a magnetic field; D, sintering; E, machining. The method can effectively improve the yield and machining speed of the samarium cobalt magnet.

Description

technical field [0001] The invention relates to the technical field of samarium cobalt magnet processing, in particular to a high-safety processing technology of samarium cobalt magnets. Background technique [0002] Samarium cobalt magnet is a kind of rare earth magnet, which is a kind of magnetic tool material made of samarium, cobalt and other metal rare earth materials, which are melted into alloys, crushed, pressed and sintered. With high magnetic energy product and extremely low temperature coefficient, the maximum working temperature can reach 350°C, and the negative temperature is not limited. When the working temperature is above 180°C, its maximum magnetic energy product (BHmax), coercivity (coercivity) and temperature stability And chemical stability are more than NdFeB permanent magnet materials. Samarium cobalt magnets have strong corrosion resistance and oxidation resistance, so they are widely used in aerospace, national defense, microwave devices, communicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/055H01F1/08H01F41/02C22C30/02C22C1/04
CPCH01F1/0551C22C1/04C22C30/02H01F1/0557H01F41/0266
Inventor 袁涛
Owner 绵阳信和磁性材料有限公司
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