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Low-cost forcibly-assembled soft and hard double-phase 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, electric switches, 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

[0028] A low-cost mandatory assembly of soft and hard dual-phase permanent magnet conductive contacts, the permanent magnet conductive contacts are composed of three parts: a fixed sleeve, a core and a coil, wherein the core is ethylene-vinyl acetate copolymer by weight 550g of lanthanum, 7g of cerium, 4.2g of cerium, 107g of ferroboron FeB22C0.05, and 5.8g of yttrium are mixed as raw materials, and then the alloy is finally obtained by cold pressing and deformation adjustment at a deformation rate of 0.2mm-0.25mm each time, and then annealed. It is a composite core obtained by integrating and curing ethylene-vinyl acetate copolymer as the matrix material and using pure copper as the shell. The composite core is set in a fixed sleeve; the coil is made of aniline-modified carbon fiber wound on the surface of the core. The aluminum core composite wire is wound, and the coil is wound on the inner surface of the fixed sleeve; the manufacturing method of the permanent magnet conduct...

Embodiment 2

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

[0049] 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

[0051] The whole is consistent with Example 1, the difference is:

[0052] 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 forcibly-assembled soft and hard double-phase 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, wherein the core body is a composite core body prepared by taking following components in parts by weight: 6-8 parts of lanthanum, 3.5-4.5parts of cerium, 100-110 parts of ferroboron FeB22C0.05 and 5-7 parts of yttrium, performing mixing, performing cold pressing deformation adjustment at a deformation rate of 0.2-0.25 mm each time, performing annealing to finally obtain an alloy as a magnetic material, carrying out integrated curing by taking an ethylene-vinyl acetate copolymer as a base material, and taking pure copper as a shell,wherein 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 core body, andthe 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 temperature is 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 mandatory assembly of soft and hard dual-phase permanent magnet conductive contacts and a manufacturing method thereof. Background technique [0002] Years of experimental results show that although the remanence of the two-phase nanocomposite permanent magnet material has been significantly improved, the coercive force has dropped significantly. The relationship between this and that makes the squareness of the demagnetization curve poor, and the actual magnetic energy product is far lower than the theoretical value. Therefore, it is necessary to conduct in-depth research on the mechanism of intergranular exchange coupling, soft / hard magnetic grain size and its volume fraction, coercive force mechanism and microstructure regulation methods of dual-phase nano permanent magnetic materials. The current nanocomposite permanent magnet materials are composed of n...

Claims

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Application Information

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IPC IPC(8): H01H11/04H01F41/02H01H1/02
CPCH01F41/0266H01H1/02H01H11/048
Inventor 张敬敏周广红
Owner SHANDONG GUANGYUN INTELLIGENT TECH CO LTD