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Preparation method of high-speed locomotive pantograph carbon slide plate material

A technology of pantograph carbon slides and pantograph slides, applied in the field of electric locomotives, can solve the problems of poor mechanical properties of pure carbon slides, large wire damage, short life, etc., achieve good mechanical properties, improve mechanical properties, high The effect of conductivity

Active Publication Date: 2018-02-27
安徽锦美碳材科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestically produced pantograph slides generally use metal slides, pure carbon slides, and impregnated metal slides. Pure carbon slides are often not used in high-speed trains due to their poor mechanical properties. Although metal slides have good wear resistance, they are harmful to conductors. The damage is relatively large, and the metal-impregnated skateboard has strict requirements on the production process and the performance of the base material. Copper metal and carbon materials have non-wetting characteristics, so domestically produced metal-impregnated carbon skateboards are limited by the formula and process, and generally show life shorter

Method used

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  • Preparation method of high-speed locomotive pantograph carbon slide plate material
  • Preparation method of high-speed locomotive pantograph carbon slide plate material
  • Preparation method of high-speed locomotive pantograph carbon slide plate material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Product configuration method

[0017] Raw material ratio:

[0018] Prepare the raw materials, the raw materials are mixed according to weight percentage, graphite powder 45%, copper-coated graphite powder 20%, carbon black 3%, resin binder content 15%, impregnating agent is impregnated asphalt 17%, and then mixed at a pressure of 10Mpa Extrude strips under pressure, and roast according to the heating curve of the first roasting, roasting for 260 hours, after roasting, the pressure is 1Mpa, the temperature is 230°C, the asphalt impregnation time is 2 hours, and finally the second roasting is carried out, and the roasting temperature is 800 ℃, the time is 300 hours, and the physical and chemical indicators of the product are:

[0019]

Embodiment 2

[0021] Product configuration method

[0022] Raw material ratio:

[0023] Prepare the raw materials, the raw materials are mixed according to weight percentage, graphite powder 35%, copper-coated graphite powder 30%, carbon black 3%, resin binder content 15%, impregnating agent is impregnated asphalt 17%, and then mixed at a pressure of 12Mpa Extrude strips under pressure, and roast according to the temperature rise curve of the first roasting, roasting for 260 hours, after roasting, the pressure is 1.5Mpa, the temperature is 250 ° C, the asphalt impregnation time is 2 hours, and finally the second roasting, the roasting temperature is 800℃, the time is 350 hours, the physical and chemical indicators of the product are:

[0024]

Embodiment 3

[0026] Product configuration method

[0027] Raw material ratio:

[0028] Prepare raw materials, raw materials are mixed according to weight percentage, graphite powder 30%, copper-coated graphite powder 35%, carbon black 3%, resin binder content 15%, impregnating agent is 17% impregnated asphalt, and then mixed at a pressure of 15Mpa Extrude strips under pressure, and roast according to the temperature rise curve of the first roasting, roasting for 260 hours, after roasting, the pressure is 1.5Mpa, the temperature is 280 ° C, the asphalt impregnation time is 2 hours, and finally the second roasting, the roasting temperature is 800℃, the time is 400 hours, the physical and chemical indicators of the product are:

[0029] Test items

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Abstract

The invention relates to the field of an electric locomotive, in particular to a preparation method of a high-speed locomotive pantograph carbon slide plate material. The preparation method of the material comprises the steps of graphite powder copper plating, mixing and kneading, shaping, roasting, soaking and secondary roasting. In the mixing and kneading process, aggregates are prepared from 30to 50 percent of graphite powder with the granularity being 65 to 71 mu m and 3 to 5 percent of carbon black with the particle diameter being 40 to 50 mu m; bonding agents are 15 to 20 percent of resin bonding agents; impregnating agents are impregnating asphalt; the copper plating graphite powder content is 20 to 30 percent. The graphite copper plating stable process is used; the graphite has good conductivity, arc resistance, friction resistance and anti-corrosion performance; the service life is long; the friction force on a conducting wire is small; the conducting wire can be well protected; the material can completely replace a conventional carbon slide plate to be used.

Description

technical field [0001] The invention belongs to the field of electric locomotives, and in particular relates to a method for preparing a high-speed locomotive pantograph carbon slide material. Background technique [0002] With the rapid development of our economy, the construction of my country's rail transit has made great progress and is developing towards high speed. At present, the speed increase of my country's railways is realized by modifying and building electrified railways and upgrading existing lines. of. Since the opening of the first electrified railway in my country in 1961, after more than 40 years of development, great progress has been made. The pantograph slide is an important current-collecting component in the electric locomotive power supply system, and is generally installed on the uppermost part of the locomotive pantograph. , directly in contact with the catenary wire, guide the current on the transmission network under the static or sliding state, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/52C04B35/628C04B35/622
CPCC04B35/521C04B35/522C04B35/622C04B35/62876C04B2235/407C04B2235/616C04B2235/6567C04B2235/77C04B2235/96
Inventor 窦文鑫臧文平赵夕吕海龙殷正娥韩雪李琳慈
Owner 安徽锦美碳材科技发展有限公司
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