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Low-cost forced assembly permanent magnet conductive contact and manufacturing method thereof

A technology of conductive contacts and manufacturing methods, applied in the direction of inductance/transformer/magnet manufacturing, circuits, electrical components, etc., which can solve problems such as poor environmental stability, poor processing performance, and application limitations

Inactive Publication Date: 2020-11-24
SHANDONG GUANGYUN INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Structural conductive polymer materials usually do not melt or dissolve due to the rigid conjugated double bond structure on the main molecular chain and the van der Waals force between molecules. These special physical properties lead to poor processability and environmental stability of structural conductive polymers. , so its application is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A low-cost mandatory assembly permanent magnet conductive contact, the permanent magnet conductive contact is composed of three parts: a fixed sleeve, a core and a coil, wherein the core is ethylene-vinyl acetate copolymer 550g by weight, lanthanum 7g, 4.2g of cerium, 107g of iron boron FeB22C0.05, 5.8g of yttrium as the core, and the composite core obtained by using pure copper as the shell. The composite core is set in a fixed sleeve; the coil is wound by The aniline-modified carbon fiber aluminum core composite wire on the surface of the core is wound, and the coil is wound on the inner surface of the fixed sleeve; the manufacturing method of the permanent magnet conductive contact includes the following steps:

[0027] 1) Raw material preparation

[0028] ① Raw material preparation: Prepare 550g of ethylene-vinyl acetate copolymer, 7g of pure copper powder, 7g of metal lanthanum, 4.2g of cerium, 107g of ferroboron FeB22C0.05, 5.8g of yttrium, fixed sleeve, and suffi...

Embodiment 2

[0045] The whole is consistent with Example 1, the difference is:

[0046] Raw materials: ethylene-vinyl acetate copolymer 500g, pure copper powder 8g, metal lanthanum 6g, cerium 3.5g, boron iron FeB22C0.05 100g, yttrium 5g, ammonium persulfate initiator 0.2g;

Embodiment 3

[0048] The whole is consistent with Example 1, the difference is:

[0049] Raw materials: ethylene-vinyl acetate copolymer 600g, pure copper powder 6g, metal lanthanum 8g, cerium 4.5g, boron iron FeB22C0.05 110g, yttrium 7g, ammonium persulfate initiator 0.5g;

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PUM

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Abstract

The invention discloses a low-cost forced assembly permanent magnet conductive contact and a manufacturing method thereof. The permanent magnet conductive contact is composed of three parts: a fixed sleeve, a core body and a coil; the core body is a composite core body obtained by taking an alloy formed by mixing the following raw materials in parts by weight: 6-8 parts of lanthanum, 3.5-4.5 partsof cerium, 0.05-110 parts of ferroboron FeB22C and 5-7 parts of yttrium as a magnetic material, taking an ethylene-vinyl acetate copolymer as a base material, integrating and curing, and taking purecopper as a shell; the composite core body is sleeved in the fixed sleeve; the coil is formed by winding an aniline modified carbon fiber aluminum core composite wire wound on the surface of the corebody, and the coil is wound on the inner surface of the fixed sleeve. The grid is compact, the cost is low, only abundant rare earth is used, the magnetic energy product is high, the Curie temperatureis high, and the thermal stability is good.

Description

technical field [0001] The invention relates to the technical field of electrical devices, in particular to a low-cost forced assembly permanent magnet conductive contact and a manufacturing method thereof. Background technique [0002] Nanocomposite permanent magnet materials are composed of nanoscale soft and hard magnetic phases, which theoretically have a high maximum energy product and low rare earth content, and are expected to develop into a new generation of low-cost and high-performance permanent magnet materials. However, a large number of high-cost rare earth-poor Nd and the like are used in this material, and the cost is high and it is difficult to popularize and apply. Because the magnetic energy product research of Nd-Fe-B single-phase permanent magnet materials has reached the bottleneck, and its shortcomings such as low Curie temperature, thermal stability, corrosion resistance and oxidation resistance are still difficult to overcome. The preparation of a ne...

Claims

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Application Information

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IPC IPC(8): H01F41/02H01F3/00
CPCH01F3/00H01F41/0253
Inventor 张敬敏周广红
Owner SHANDONG GUANGYUN INTELLIGENT TECH CO LTD