Preparation method and application of metal fiber shielding felt

A metal fiber and fiber technology, applied in the fields of magnetic field/electric field shielding, electrical components, etc., can solve the problems of high electrical conductivity and lack of high magnetic permeability, high magnetic permeability but lack of high electrical conductivity, difficulty in shielding all frequency bands, etc. Shielding effect, wide application range, good eddy current effect
CN102729005AInactive Publication Date: 2012-10-17天津华磊科技发展有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
天津华磊科技发展有限公司
Publication Date
2012-10-17
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to a preparation method and application of a metal fiber shielding felt, and in particular relates to a metal fiber shielding felt capable of playing a good attenuation offset role on foreign electromagnetic wave, belonging to the technical field of shielding materials. The metal fiber shielding felt is prepared by comprising the steps of conducting surfaces copper plating, drawing, copper removal, rinsing, stretch-breaking, net forming, sintering, cooling and postprocessing on purchased permalloy wires, thus obtaining the metal fiber shielding felt product. The metal fiber shielding felt is wide in range of application, including shielding of small electronic devices to shielding rooms, shielding canopies, shielding communication cables, transformation rooms, shielding boxes and cabinets. The obtained product is thin, soft, good in reflection property, and good in vortex, and plays a good attenuation offset role on foreign electromagnetic wave, thus being capable of achieving a good shielding effect.
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Description

technical field

[0001] The invention relates to a preparation method and application of a metal fiber shielding felt, mainly relates to a metal fiber shielding felt capable of effectively offsetting and attenuating external electromagnetic waves, and belongs to the technical field of shielding materials. Background technique

[0002] At present, the commonly used electromagnetic shielding materials are mainly metal materials, such as aluminum, copper, zinc, iron, steel, nickel and their alloys. Different metal materials are selected, and their parameters such as magnetic permeability are also different. When shielding low-frequency magnetic fields, high magnetic permeability such as 80% nickel alloy Mumetal is often used, which is a high magnetic permeability iron-nickel alloy shielding materials, these alloys are suitable for applications where it is necessary to reduce the source of electromagnetic interference in a very small space. Shielding materials should be selected...

Claims

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