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Preparation method of bonded samarium-cobalt magnet and vacuum stirring device of bonded samarium-cobalt magnet

A samarium-cobalt magnet and vacuum stirring technology, which is applied in the direction of magnetic objects, inductor/transformer/magnet manufacturing, magnetic materials, etc., can solve the problems of acetone solvent volatilization and environmental pollution, and achieve accelerated mixing, prevention of environmental pollution, and reduction of environmental pollution Effect

Pending Publication Date: 2022-03-15
绵阳西磁科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a preparation method of a bonded samarium cobalt magnet and its vacuum stirring device to solve the problem of environmental pollution caused by the volatilization of acetone solvent

Method used

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  • Preparation method of bonded samarium-cobalt magnet and vacuum stirring device of bonded samarium-cobalt magnet
  • Preparation method of bonded samarium-cobalt magnet and vacuum stirring device of bonded samarium-cobalt magnet

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Embodiment 1

[0031] A preparation method of a bonded samarium cobalt magnet, the bonded samarium cobalt magnet is composed of 97wt% samarium cobalt magnetic powder, 1.95wt% thermosetting binder and 0.05wt% lubricant, the preparation method of the bonded samarium cobalt magnet Include the following steps:

[0032] 1) Send 9.7kg of samarium-cobalt magnetic powder and acetone solution dissolved with 0.195kg of epoxy resin AB glue to the vacuum stirring device in turn, mix evenly, heat during the stirring process, the heating temperature is 35-40°C, and start vacuuming at the same time The device is used to recover acetone. After the acetone in the stirring device is completely volatilized, take out the product, dry it in an oven at 80°C, and then crush it with a crusher and pass it through a 100-120 mesh sieve to obtain rubber powder;

[0033] 2) the rubber powder obtained in step 1) is uniformly mixed with 0.005kg zinc stearate, and sent into a molding machine to be pressed into a ring sampl...

Embodiment 2

[0038] A preparation method of a bonded samarium cobalt magnet, the bonded samarium cobalt magnet is composed of 97.6wt% samarium cobalt magnetic powder, 2.3wt% thermosetting binder and 0.1wt% lubricant, the preparation of the bonded samarium cobalt magnet The method includes the following steps:

[0039] 1) Send 9.76kg of samarium-cobalt magnetic powder and acetone solution dissolved with 0.23kg of epoxy resin AB glue to the vacuum stirring device in turn, mix evenly, heat during the stirring process, the heating temperature is 35-40°C, and start vacuuming at the same time The device is used to recover acetone. After the acetone in the stirring device is completely volatilized, take out the product, dry it in an oven at 80°C, and then crush it with a crusher and pass it through a 100-120 mesh sieve to obtain rubber powder;

[0040] 2) the rubber powder obtained in step 1) is uniformly mixed with 0.1kg zinc stearate, and sent into a molding machine to be pressed into a ring sa...

Embodiment 3

[0045] A preparation method of a bonded samarium cobalt magnet, the bonded samarium cobalt magnet is composed of 98wt% samarium cobalt magnetic powder, 2.5wt% thermosetting binder and 0.5wt% lubricant, the preparation method of the bonded samarium cobalt magnet Include the following steps:

[0046] 1) Send 9.8kg of samarium-cobalt magnetic powder and acetone solution dissolved with 0.25kg of epoxy resin AB glue to the vacuum stirring device in turn, mix evenly, heat during the stirring process, the heating temperature is 35-40°C, and start vacuuming at the same time The device is used to recover acetone. After the acetone in the stirring device is completely volatilized, take out the product, dry it in an oven at 80°C, and then crush it with a crusher and pass it through a 100-120 mesh sieve to obtain rubber powder;

[0047]2) the rubber powder obtained in step 1) is uniformly mixed with 0.05kg zinc stearate, and sent into a molding machine to be pressed into a ring sample;

...

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Abstract

The invention discloses a preparation method of a bonded samarium-cobalt magnet and a vacuum stirring device thereof, relates to the technical field of samarium-cobalt magnets, and solves the problem of environmental pollution caused by volatilization of an acetone solvent in the preparation process of the bonded samarium-cobalt magnet, the bonded samarium-cobalt magnet is composed of 97.0-98.0 wt% of samarium-cobalt magnetic powder, 1.95-2.5 wt% of a thermosetting binder and 0.05-0.5 wt% of a lubricant, the preparation method of the bonded samarium-cobalt magnet comprises the following steps: dissolving a thermosetting binder in an acetone solvent, adding samarium-cobalt magnetic powder, mixing, heating and drying, carrying out compression molding on a mixed lubricant, heating and curing, and magnetizing to obtain the bonded samarium-cobalt magnet. The samarium cobalt magnetic powder and the acetone solution dissolved with the thermosetting binder are mixed through the vacuum stirring device, the acetone solvent is recycled, and the effects of recycling the solvent, reducing the cost and preventing environmental pollution are achieved through the vacuum stirring device.

Description

technical field [0001] The invention belongs to the technical field of samarium-cobalt magnets, and in particular relates to a preparation method of a bonded samarium-cobalt magnet and a vacuum stirring device thereof. Background technique [0002] Samarium-cobalt permanent magnet material is a kind of magnetic material made of samarium, cobalt and other metal rare earth materials, which are melted into alloys, crushed, pressed and sintered. The 2:17 type samarium cobalt permanent magnet material has high Curie temperature, high magnetic energy product, excellent temperature stability and corrosion resistance. It is currently the best temperature-resistant rare earth permanent magnet material. Microwave devices, communications, medical equipment, instruments, meters, various magnetic transmission devices, sensors, magnetic processors, motors, magnetic cranes and other fields play an irreplaceable role. [0003] Bonded magnets use thermoplastic resin such as polyamide resin ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/02H01F13/00H01F1/055
CPCH01F41/0266H01F13/003H01F1/0558
Inventor 刘鑫侯超张安磊
Owner 绵阳西磁科技有限公司
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