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Shanghai Yinggui Magnetic Industry Co., ltd

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Haiying Gui Magnet Co., Ltd.

Contact: Mr. Yang Yuqian

Tel:021-61720007

Phone:15901887572

Q Q:535420120

E-mail:yyq0188@126.com

Address: No.158 Junmin Road, Nanqiao Town, Fengxian District, Shanghai, China

Postcode:201400

Ferrite Magnets

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Ferrite Magnets

Classification of the:Ferrite

Detailed information

Ferrite magnet features:
 Produced by powder metallurgy, low residual magnetism, reply small magnetic permeability. Coercivity larger, stronger magnetic anti-go capability, particularly suitable for use as the dynamic operating conditions of a magnetic circuit structure. Hard and brittle material, diamond tools that can be used for cutting. The main raw materials are oxides, it is difficult to corrosion. Working temperature: -40 ℃ to + 200 ℃.
 Divided into anisotropic ferrite magnets (anisotropic) and isotropic (isotropic). Isotropic sintered ferrite magnets and other magnetic material can be relatively weak, but can be magnetized in different directions of the magnet; anisotropic sintered ferrite magnets with strong magnetic material, but only along the magnet book magnetization direction magnetization.

Ferrite magnets physical properties:
 In the actual production of ferrite magnets, the chemical composition of a good raw material, which may not be able to get a good performance and the microstructure of ferrite magnets, the reason is the impact of physical properties. The physical properties of iron oxide listed include the average particle size APS, the specific surface area SSA and bulk density BD. Because of Mn-Zn ferrite magnet iron formulations accounted for about 70 percent, so the value of its APS APS have a great impact on the value of the ferrite magnet powder. In general, the value of small iron APS, APS value of a ferrite magnet powder also small, will help to speed up the rate of chemical reactions. However, given the powder particles are too small and not conducive to the after-pressing and sintering and crystallization of the situation, APS value should not be too small. Obviously, when the iron oxide APS value is too large, at the time of calcining, due to larger particle size, only the diffusion reaction of the spinel phase, it can not be further grain growth. This will inevitably lead to the activation energy needed to raise the sintering is not conducive to a solid phase reaction.

 Ferrite Magnet Product details show:
Ferrite Magnets

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Tel: 021-61720007 Mobile: 15901887572 Fax: 021-57584386 滬ICP備14027489號

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