Carbon fiber reinforced slide plate for pantograph of electric locomotive and its manufacture

A technology of electric locomotives and carbon fiber, which is applied in the direction of electric vehicles, collectors, vehicle parts, etc., can solve the problems that affect the wide application of metal-impregnated carbon skateboards, affect the safety and reliability of railway operation, and wear and tear of catenary wires, etc., and achieve excellent mechanical properties , low cost and short production cycle

Inactive Publication Date: 2004-01-21
YIXING CITY YIYANG MEXICAN ROOTS MATERIALS
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The metal-impregnated carbon skateboard developed in the late 1980s has greatly improved its impact strength, electrical conductivity, and service life compared with pure carbon skateboards. Carbon skateboards still often fall off and break during operation. Sometimes more than 20 skateboards will be interrupted a day, which affects the safety and reliability of railway operation. Therefore, it affects the wide application of metal-impregnated carbon skateboards. For the safety and reliability of operation, copper-based powder slides are still used, and the wear of powder metallurgy slides on catenary wires is extremely serious, so improving the impact strength of carbon slides has always been a research direction for slides
The Chinese patent application with the publication number CN1265429A pointed out that the use of chopped carbon fibers (not greater than 8mm) in the publication number CN1178745A cannot meet the high impact performance requirements of the skateboard, so it uses continuous long carbon fibers with a diameter of less than 20 μm to improve the impact resistance of the skateboard , the thinnest and most expensive carbon fiber currently available on the market is 1K (1000 bundles × 7 μm), and it may be more expensive to specialize in the production of 20 μm (3 bundles) continuous long carbon fibers; in addition, the publication number is CN1265429A and the publication number is CN1178745A Most of the skateboards use copper-plated graphite as the conductive base material, the cost of raw materials is high, and the market competitiveness is small

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, molybdenum phenolic resin 15%, graphite powder (flaky graphite powder: artificial graphite powder=1: 1) 38%, electrolytic copper powder 30%, chopped carbon fiber 15% with coupling agent KR-12 process, Internal release agent zinc stearate 1%, curing agent 0.9%, antioxidant 264 0.1%, after wet mixing and drying, molded at 200°C and 50Mpa pressure for 40 minutes, the parameters of the prepared skateboard are: material density 2.45g / cm 3 , the resistivity is 12μΩm, and the impact strength is 2.5J / cm 2 , the electrical wear test is: the wear ratio of the contact wire is 0.0084mm 2 / 10,000 bow sorties, the specific wear of the skateboard is 6.1mm / 10,000 locomotive kilometers.

Embodiment 2

[0027] Embodiment 2, ring-opening polymerization phenolic resin (benzoxazine resin) 14%, graphite powder (flaky graphite powder: artificial graphite powder: expandable graphite powder=1: 1: 1) 30%, electrolytic copper powder 34% , chopped copper fiber 10%, chopped carbon fiber treated with coupling agent KR-12 10%, internal release agent zinc stearate 1.9%, curing agent 0.05%, antioxidant 264 0.1%, mixed by dry method Afterwards, molding at 180°C and 30Mpa pressure for 60 minutes, the parameters of the prepared skateboard are: the material density is 2.61g / cm 3 , the resistivity is 8μΩm, and the impact strength is 2.3J / cm 2 , the electrical wear test is: the wear ratio of the contact wire is 0.0102mm 2 / 10,000 bow sorties, the specific wear of the skateboard is 7.9mm / 10,000 locomotive kilometers.

Embodiment 3

[0028] Embodiment 3, boron phenolic resin 20%, graphite powder (flaky graphite powder: artificial graphite powder=1: 1) 34%, electrolytic copper powder 38%, chopped copper fiber 10%, process with coupling agent KR-12 6% chopped carbon fiber, 1% internal release agent zinc stearate, 0.9% curing agent, 0.1% antioxidant 264, mixed and dried by wet or dry method, molded at 200°C and 50Mpa pressure for 30 minutes , the parameters of the prepared skateboard are: the material density is 2.68g / cm 3 , the resistivity is 8μΩm, and the impact strength is 2.0J / cm 2 , the electrical wear test is: the wear ratio of the contact wire is 0.0077mm 2 / 10,000 bow sorties, the specific wear of the skateboard is 7.8mm / 10,000 locomotive kilometers.

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Abstract

The present invention relates to vehicle fittings. The carbon fiber reinforced slide plate for pantograph of electric locomotive is manufactured with graphite, electrolytic copper powder/copper fiber as conducting stuffing, carbon fiber as reinforcing material and heat resisting modified phenolic resin as adhesive and through hot pressing. It has excellent friction performance, long service life, few wear of contacted wire, excellent mechanism performance and impact strength as high as ten times that of metal soaked carbon slide plate. The manufacture process has low cost, low power consumption and short period. The carbon fiber reinforced slide plate may be used in pantograph for rail transportation.

Description

technical field [0001] The invention relates to a carbon fiber-reinforced carbon slide plate, in particular to a pantograph slide plate used for railway electric locomotives, urban subways, and rail transit, and belongs to the technical field of transportation vehicle accessories. technical background [0002] The frictional fit between the pantograph slide plate of electric locomotive and the catenary wire, especially the reliability of current receiving and the wear of the wire, has always been a problem that plagues the reliability and economy of electrified railways. The metal-impregnated carbon skateboard developed in the late 1980s has greatly improved its impact strength, electrical conductivity, and service life compared with pure carbon skateboards. Carbon skateboards still often fall off and break during operation. Sometimes more than 20 skateboards will be interrupted a day, which affects the safety and reliability of railway operation. Therefore, it affects the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L5/08C08J5/16C08L61/06
Inventor 钱振华凌跃成顾月芬
Owner YIXING CITY YIYANG MEXICAN ROOTS MATERIALS
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