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Magnetically-conductive plastic heat-shrinkable sleeve and preparation method thereof

A heat-shrinkable sleeve and magnetic conductivity technology, which is applied to tubular articles, other household appliances, applications, etc., can solve the problems of high production efficiency, low production efficiency and high manufacturing cost, and achieve simple operation, low cost and high production efficiency. Effect

Active Publication Date: 2013-09-18
深圳市沃尔热缩有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of time-consuming and laborious, low production efficiency, and high manufacturing cost in the current magnetic shielding of electromagnetic components, the present invention proposes a method for preparing a magnetically conductive plastic heat-shrinkable sleeve, using the magnetically conductive plastic heat-shrinkable sleeve of the present invention Directly socketed on the outer surface of electromagnetic components, it can effectively carry out magnetic shielding, and it is easy to operate, low in cost and high in production efficiency

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The invention provides a magnetically conductive plastic heat-shrinkable sleeve, the formula of which includes the following materials by weight:

[0017] Required materials:

[0018] 100 parts of thermoplastic resin, including one or more of ethylene vinyl acetate copolymer (EVA), ethylene ethyl acrylate copolymer (EEA), low density polyethylene (LDPE), linear low density polyethylene (LLDPE); when When multiple materials are added, the content is the total content of various materials and the ratio between various materials is not limited;

[0019] The magnetic part is 10-900 parts. The magnetic powder includes one or more of sendust magnetic powder, manganese zinc magnetic powder or nickel zinc magnetic powder. When adding multiple materials, the content is the total content of various materials and various materials The ratio between them is not limited; the particle size of the magnetic powder can be selected above 50 mesh, and the magnetic powder with a particle ...

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Abstract

The invention discloses a magnetically-conductive plastic heat-shrinkable sleeve and a preparation method thereof. As everyone knows, various electromagnetic components and parts generate magnetic fields in work so as to further influence peripheral instruments and equipment to a certain extent. In conventional methods, magnetically-conductive coatings or magnetically-conductive cups are adopted to magnetically shield the electromagnetic components and parts; however, the operation is time-consuming, labor-consuming, low in production efficiency and high in manufacturing cost. For overcoming the defects, the invention discloses the method for preparing the magnetically-conductive plastic heat-shrinkable sleeve by adding magnetic powder into the plastic heat-shrinkable sleeve. The magnetically-conductive plastic heat-shrinkable sleeve of the invention is directly sleeved on the outer surfaces of the electromagnetic components and parts, thereby effectively performing magnetic shielding and having the advantages of simple operation, low cost and high production efficiency.

Description

technical field [0001] The invention relates to a manufacturing method of a heat-shrinkable sleeve, in particular to a magnetically conductive plastic heat-shrinkable sleeve and a preparation method thereof. Background technique [0002] As we all know, all kinds of electromagnetic components will generate magnetic fields when they work, which will have a certain impact on peripheral equipment. The most common components of this type are inductors, transformers and other components. In order to reduce the magnetic field generated by electromagnetic components during operation The current method is to magnetically shield the electromagnetic components, that is, directly coat a layer of magnetically conductive coating made of glue on the outer surface of the electromagnetic components, or cover with a magnetically conductive cup, and then glue the components The device and the magnetic cup are sealed and fixed. Since the glue needs a certain amount of time to cure, such an ope...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08K3/34C08K3/08B29C69/02B29C71/04B29B9/06B29L23/00
Inventor 周和平田立何少敦饶喜梅邵碧波张定雄
Owner 深圳市沃尔热缩有限公司
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