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Enhancement core of fiber-reinforced copper-based composite material contact line

A copper-based composite material and fiber-reinforced technology, applied in the field of contact wires, can solve the problems of easy peeling of the metal reinforced core from the matrix material, different electrode potentials, electrochemical corrosion, etc., to increase the maximum suspension tension, enhance bonding, and improve The effect of corrosion resistance

Active Publication Date: 2016-01-27
CHINA RAILWAYS CORPORATION +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electrode potentials of aluminum, steel, and copper are different, and electrochemical corrosion is prone to occur, so there are many problems such as poor corrosion resistance and easy peeling of the metal reinforced core from the base material.

Method used

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  • Enhancement core of fiber-reinforced copper-based composite material contact line
  • Enhancement core of fiber-reinforced copper-based composite material contact line
  • Enhancement core of fiber-reinforced copper-based composite material contact line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Take the 12K fiber bundle of T700SC type carbon fiber and the alloy wire of tin-copper (the tin content is 0.15% by mass) and place them in a braiding machine for interlaced braiding. The resulting reinforced core is figure 2 As shown, the reinforced core is copper-clad and rounded in an Ar gas protective atmosphere.

[0042] In its characteristic cycle section, it can be regarded as a triangular sub-structure 5 composed of 2 carbon fiber bundles 3 and a copper alloy wire 4, 6 triangular sub-structures 5 are closely surrounded by 1 copper alloy wire, and then all The triangle substructure 5 is drawn out spirally, and the spin direction of the adjacent triangle substructure 5 is opposite. In a characteristic loop section of the reinforced core of this embodiment, the triangular substructure 5 can be regarded as spirally drawn out along the axial direction, during which the triangular substructure spins 360° and revolves around a copper alloy wire by 180°. In this embodimen...

Embodiment 2

[0044] Take SYT49 type carbon fiber fiber bundle and silver copper alloy wire (silver content is 0.10% mass fraction ratio), put them in a braiding machine for interlaced braiding, and the resulting reinforced core is image 3 As shown, in the N2 gas protective atmosphere, the reinforced core is copper-clad and rounded.

[0045] In the general circulation section of the reinforced core, it can be regarded as a paired substructure 6 consisting of a carbon fiber bundle 3 and a copper alloy wire 4, and the 8 paired substructures 6 are tightly surrounded and then spirally drawn out. The spiral directions of adjacent pairs of substructures 6 are the same. In this embodiment, the carbon fiber bundle 3 and the copper alloy wire 4 have the same cross-sectional diameter. The area ratio of the carbon fiber bundle 3 to the copper alloy wire 4 in the characteristic cross section of the reinforced core is close to 1:1.

Embodiment 3

[0047] Take the fiber bundle of SYT50 carbon fiber and place it in the braiding machine for interlaced braiding, and the reinforced core obtained is like Figure 4 As shown, in a vacuum atmosphere, the reinforced core is copper-clad and rounded.

[0048] In the characteristic circulation section of the reinforced core, it is mainly composed of carbon fiber bundles, and they have the same model and diameter. This embodiment adopts a layered structure. In each layer, carbon fiber bundles 3 with the same diameter are uniformly distributed in the circumferential direction to form a ring substructure 7. The numbers of carbon fiber bundles 3 contained in the inner layer to the outer layer are 1, 6, and 12 respectively. , 18. The carbon fiber bundles 3 of all layers are drawn out spirally along the axial direction, and the rotation directions of the carbon fiber bundles 3 of any two adjacent layers are opposite.

[0049] In summary, the reinforced core of the fiber-reinforced copper-bas...

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Abstract

The embodiment of the invention provides an enhancement core of a fiber-reinforced copper-based composite material contact line. The enhancement core is composed of copper alloy wires and carbon fiber bundles. The enhancement core axially comprises a plurality of repeated feature circulation segments. The radial section of each feature circulation segment comprises a substructure formed by arranging one or more carbon fiber bundles and one or more copper alloy wires in a staggered manner. Due to the fact that the carbon fiber has the beneficial effects of being large in tensile strength, high in modulus and the like, the enhancement core has the larger tensile strength, potential difference does not exist between the carbon fiber and copper or between the carbon fiber and added alloy elements, the whole corrosion resistance of the contact line can be improved, and the enhancement core has the higher electrochemical corrosion resistance performance.

Description

Technical field [0001] The invention relates to the technical field of contact wires, in particular to a reinforced core of a fiber-reinforced copper-based composite contact wire. Background technique [0002] The contact wire is a key component of the pantograph system of an electrified railway. It is required to have sufficient tensile strength to withstand its suspension tension to ensure that the electrified railway locomotive obtains good current flow; at the same time, it is required to have excellent electrical conductivity to ensure a relatively high level of electrification. Low power consumption. [0003] Today, the construction of domestic electrified railways has entered a period of rapid development. The technology for the construction and operation of high-speed railways with speeds of 250 kilometers and 350 kilometers per hour has been mature. At the same time, the development and research of ultra-high-speed railways with speeds of more than 400 kilometers per hour ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/14C22C101/10C22C111/00
Inventor 姜家杰韩建民杨智勇李逢源张进东周洋谭谆礼
Owner CHINA RAILWAYS CORPORATION
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