High rigidness saturated polarity rubber adhesive permanent magnet and preparation thereof

A technology for bonding permanent magnets and polar rubber, which is applied in the direction of magnetic objects, magnetic materials, inorganic materials, etc., to achieve the effects of improving product hardness, improving physical properties, and reducing power consumption

Inactive Publication Date: 2009-03-11
江显涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is an insurmountable degree: only a slight increase of 2~3SHD (Shore degree)

Method used

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  • High rigidness saturated polarity rubber adhesive permanent magnet and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Zhejiang Ante Magnetic Material Co., Ltd. magnetic powder ZMXF-4S strontium ferrite bonded magnetic powder 1200 parts, Nantong Hengrui Glass Plastic Co., Ltd. 130A type CPE 100 parts, plasticizer 25 parts, Rugao Shuangma Chemical Co., Ltd. 401820 type stearic acid 15 parts, 0.5 part of calcium stearate from Nantong Xinbang Chemical Co., Ltd., 0.3 part of KY405-L anti-aging agent, after mixing evenly, knead with an open mill for 5 minutes, and the hardness of the obtained film is Shore 53 Shore D.

Embodiment 2

[0049] Beikuang Magnetic Materials Co., Ltd. BMXF-4B strontium ferrite bonded magnetic powder 140Kg, Nantong Hengrui Glass Plastic Co., Ltd. 130A type CPE 10.8Kg, plasticizer 2.8Kg, stearic acid 1.5Kg, calcium stearate 0.5Kg , anti-aging agent 0.3Kg, through 55 liters of pressurized kneader with top bolt, mixed according to the above method, and discharged, the film hardness 53 Shore D was obtained.

Embodiment 3

[0051] Zhejiang Ante Magnetic Materials Co., Ltd. BMXF-4S magnetic powder 1350 parts, Nantong Hengrui Glass Plastic Manufacturing Co., Ltd. 130A type CPE 100 parts, plasticizer 28 parts, 401820 type stearic acid 15 parts, calcium stearate 0.5 parts, KY- 0.3 part of 405 anti-aging agent was mixed with a 55-liter internal mixer, and the film hardness of 54 Shore D was obtained after discharging.

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Abstract

The invention provides a high-hardness permanent magnet which is bonded by saturated polar rubber and comprises components in weight percentage: 85 to 97 percent of magnetic powder, 2 to 15 percent of saturated polar rubber, 0.5 to 4 percent of plasticizing agent, 0 to 1 percent of lubricating agent, 0.1 to 2.5 percent of surface active agent and anti-aging agent for the rest, wherein the plasticizing agent is one or a plurality of petroleum resin and paraffin in petroleum series plasticizing agents, coumarone indene resin in a coal tar series, pine tar, colophony and retinol in a pine oil series and epoxidized soybean oil in an epoxidized type. The invention also provides a method for preparing the high-hardness permanent magnet which is bonded by the saturated polar rubber. The high-hardness permanent magnet which is bonded by the saturated polar rubber has the advantages of hardness increase, physical property improvement, fraction defective reduction of downstream manufacturer products, convenient and safe processing and production cost reduction, and is greatly beneficial for enlarging the adaptability of the permanent magnet.

Description

technical field [0001] The present invention relates to the technical field of bonded permanent magnets, more specifically, to the technical field of saturated polar rubber bonded permanent magnets, in particular to a high-hardness saturated polar rubber bonded permanent magnet and a preparation method thereof, suitable for strontium ( Barium) Ferrite magnetic powder is also suitable for NdFeB, NdFeN, SmCo and other magnetic powders. Background technique [0002] With the continuous improvement of the informatization level and informatization degree of the whole society, people's requirements for electronic information products are constantly increasing. At present, electronic information products are developing in the direction of small, thin and short, which puts forward the permanent magnet materials in the electronic information industry. Higher requirements. Compared with sintered permanent magnets, bonded permanent magnets have good mechanical properties, one-time mold...

Claims

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Application Information

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IPC IPC(8): H01F1/057H01F1/08B22F3/00
Inventor 江显涛
Owner 江显涛
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