Injection die and injection method used for preparing multi-orientation anisotropic plastic magnetic body

An anisotropic, injection mold technology, applied in the field of magnetic materials, can solve the problem of single orientation of magnetic rings or magnetic tiles, and achieve the effect of prolonging service life, realizing multi-orientation application and reducing production cost.

Pending Publication Date: 2019-04-02
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems in the above-mentioned prior art that the orientation of magnetic rings or magnetic tiles is single and cannot meet the existing applications, the present invention provides an injection mold that can be used to prepare multi-orientation anisotropic plastic magnets;

Method used

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  • Injection die and injection method used for preparing multi-orientation anisotropic plastic magnetic body
  • Injection die and injection method used for preparing multi-orientation anisotropic plastic magnetic body
  • Injection die and injection method used for preparing multi-orientation anisotropic plastic magnetic body

Examples

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Embodiment 1

[0044]An injection mold for preparing multi-oriented anisotropic plastic magnets, which consists of a front mold 1, a rear mold 2, an outer diameter orientation magnetized part 3 and an inner diameter orientation magnetized part 4; the inner diameter orientation magnetized part is made of Made of SM-32 samarium cobalt magnetic material, the outer diameter oriented magnetized part is made of EH42 NdFeB magnetic material; a mold cavity 5 is formed between the inner diameter oriented magnetized part and the outer diameter oriented magnetized part, and the mold cavity The magnetic field strength along half of its radial direction is 800GS; an outer barrier layer 51 is provided between the mold cavity and the outer diameter-oriented magnetized part, and an inner barrier layer 52 is provided between the mold cavity and the inner diameter-oriented magnetized part. The radial thickness of the inner and outer interlayers is 0.5 mm, and the inner and outer interlayers are made of wear-re...

Embodiment 2

[0053] An injection mold for preparing multi-oriented anisotropic plastic magnets, which consists of a front mold 1, a rear mold 2, an outer diameter orientation magnetized part 3 and an inner diameter orientation magnetized part 4; the inner diameter orientation magnetized part is made of Made of SM-32 samarium cobalt magnetic material, the outer diameter oriented magnetized part is made of EH42 NdFeB magnetic material; a mold cavity 5 is formed between the inner diameter oriented magnetized part and the outer diameter oriented magnetized part, and the mold cavity The magnetic field strength at half of the radial direction is 1500GS; an outer barrier layer 51 is provided between the mold cavity and the outer diameter-oriented magnetized part, and an inner barrier layer 52 is provided between the mold cavity and the inner diameter-oriented magnetized part. The radial thickness of the inner interlayer and the outer interlayer is 1mm, and the relative magnetic permeability of the...

Embodiment 3

[0062] An injection mold for preparing multi-oriented anisotropic plastic magnets, which consists of a front mold 1, a rear mold 2, an outer diameter orientation magnetized part 3 and an inner diameter orientation magnetized part 4; the inner diameter orientation magnetized part is made of Made of SM-32 samarium cobalt magnetic material, the outer diameter oriented magnetized part is made of EH42 NdFeB magnetic material; a mold cavity 5 is formed between the inner diameter oriented magnetized part and the outer diameter oriented magnetized part, and the mold cavity The magnetic field strength along half of its radial direction is 1100GS; an outer barrier layer 51 is provided between the mold cavity and the outer diameter-oriented magnetized part, and an inner barrier layer 52 is provided between the mold cavity and the inner diameter-oriented magnetized part. The thickness of the inner spacer and the outer spacer in the radial direction is 0.7mm, and the relative magnetic perme...

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Abstract

The invention belongs to the technical field of magnetic fields. The invention discloses an injection die used for preparing a multi-orientation anisotropic plastic magnetic body. The injection die used for preparing the multi-orientation anisotropic plastic magnetic body is composed of a front die, a rear die, an outer-diameter orientation magnetizing part and an inner-diameter orientation magnetizing part, wherein a die cavity is formed between the inner-diameter orientation magnetizing part and the outer-diameter orientation magnetizing part, an outer interlayer is arranged between the diecavity and the outer-diameter orientation magnetizing part, and an inner interlayer is arranged between the die cavity and the inner-diameter orientation magnetizing part. The invention further discloses an injection method. The injection die is capable of meeting the need of preparing the multi-orientation anisotropic magnetic body, and realizing multi-orientation application for the magnetic body, and beneficial to increasing the application efficiency for the magnetic body; the injection die is capable of realizing rapid and stable preparation for the multi-orientation anisotropic magneticbody, beneficial to large-scale production, and capable of lowering the production cost; and an injection method is capable of ensuring the efficiency and quality of utilizing the injection die for preparing the multi-orientation anisotropic magnetic body, and also capable of greatly ensuring the performance of anisotropy of the multi-orientation anisotropic magnetic body.

Description

technical field [0001] The invention relates to the technical field of magnetic materials, in particular to an injection mold and an injection molding method for preparing multi-orientation anisotropic plastic magnets. Background technique [0002] With the development of science, the application of magnets has become more and more extensive, and people have put forward different requirements for the application efficiency of magnets. For example, for magnetic rings or magnetic tiles, people no longer want the magnetic rings or magnetic tiles only in them A certain orientation has higher magnetic performance, but it is hoped that the magnetic ring or magnetic tile has higher magnetic performance in at least two orientations, for example, in both the inner diameter orientation and outer diameter orientation of the magnetic ring or magnetic tile. It has high magnetic performance, that is, multi-orientation anisotropic magnetic ring or multi-orientation anisotropic magnetic til...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/78B29C45/77
CPCB29C45/26B29C45/77B29C45/78B29C2945/76598B29C2945/76561B29C2945/76531B29C2945/76498
Inventor 易潍
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
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