Manufacturing method of compound electromagnetic shield magnet of nanocry stal magnetically soft alloy powder polymer

A nanocrystalline soft magnetic and composite electromagnetic technology, applied in the direction of magnetic/electric field shielding, shielding, electrical components, etc., can solve the problems of difficult process control, reduced magnet shielding effect, and no soft magnetic alloy powder, etc., to achieve strong anti-corrosion The effect of anti-oxidation ability, improving anti-electromagnetic interference performance and excellent electrical insulation performance
CN1658748AInactive Publication Date: 2005-08-24SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2005-08-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention is a producing method of the nanometer crystal floppy magnetism alloy powder polymer mulriple electromagnetism shield body. The method adopt the technology of melting body fast curdling to produce the Fe-B-Si-Nb-Cu or the Fe-Si-Al serial of alloy squamas, and stave them to obtain the floppy magnetism alloy particulates, then anneal in vacuum; use the vacuum vaporing and plating technology to deposit a layer of polymeric opposite two methylic benzene membrane on the surface of the magnetic powders; add the magnetic powders into the polymeric monomer solution to produce the suspending system; use the pressed pieces to extrude a pressed and extended technics to produce the mentioned nanometer crystal floppy magnetism alloy powder polymer mulriple electromagnetism shield body. The technics of this invention is simple, its cost is low, the anticorrosive produced magnet has very high chemistry stability, and the magnet shield effect is improved.
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Description

technical field

[0001] The invention relates to the technical field of preparation of anti-electromagnetic interference materials and magnet molding processing, in particular to a preparation method of a nanocrystalline soft magnetic alloy powder polymer composite electromagnetic shielding magnet. Background technique

[0002] With the rapid development of information technology, especially the rapid popularization of mobile communications, computers, and household appliances, electronic products have been widely used in various fields of people's daily production and life. At the same time, in order to reduce the size of the equipment and improve the performance of the equipment, the operating frequency of various electronic equipment is getting higher and higher. Taking a personal computer as an example, the clock frequency of the CPU has reached above 4GHz, and the operating frequencies of many other personal electronic devices are mostly in the quasi...

Claims

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