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Copper-impregnated carbon contact strip material and preparation method of copper-impregnated contact strip

A carbon sliding plate, copper immersion technology, applied in electric vehicles, power collectors, transportation and packaging, etc., can solve the problems of complex preparation process, low metal impregnation efficiency, etc., and achieve high impregnation rate, high mechanical and wear resistance. , the effect of improving the overall performance

Active Publication Date: 2019-08-23
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a copper-impregnated carbon sliding plate material and a method for preparing a copper-impregnated carbon sliding plate, so as to solve the problems of complex preparation process of impregnated metal carbon sliding plate and low efficiency of impregnating metal

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  • Copper-impregnated carbon contact strip material and preparation method of copper-impregnated contact strip

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preparation example Construction

[0029] The preparation method of copper-impregnated carbon sliding plate of the present invention, its step comprises:

[0030] (1) After stirring the carbon slide material at a temperature of 120°C to 150°C for 40min to 60min, kneading at a temperature of 150°C to 200°C for 80min to 100min;

[0031] Use metal wires to build a three-dimensional network structure in advance, first place it in the pressing mold, then pour the kneaded carbon skateboard material into the pressing mold, and pre-press the pressing mold for 30 minutes at a pressure of 15MPa-25MPa -50min, solidify the pressed material column at a temperature of 120℃~180℃ for 4h~8h, press the solidified material column into a carbon skateboard blank; Calcined at 1200°C for 1h-2h to make a carbon slide.

[0032] Wherein, the metal wire used is metal or metal oxide that can react with acid, and the diameter of the metal wire is less than 10 μm.

[0033] (2) Immerse the carbon slide with the metal wire inside to form a ...

Embodiment 1

[0036] The carbon slide material in this embodiment includes 30 parts of petroleum coke powder, 26 parts of pitch coke powder, 5 parts of natural graphite powder and 6 parts of artificial graphite powder.

[0037] The preparation method of the copper-impregnated carbon sliding plate of the present embodiment, its step comprises:

[0038] (1) After stirring the carbon slide material at a temperature of 120°C for 40 minutes, kneading at a temperature of 150°C for 80 minutes.

[0039] Build a three-dimensional network structure with metal wires in advance, first place it in the pressing mold and then pour the kneaded carbon skateboard material into the pressing mold, first pre-press the pressing mold at a pressure of 15MPa for 30 minutes, After the pressed material column was cured at a temperature of 120° C. for 4 hours, the cured material column was pressed into a carbon skateboard blank. After the carbon slide blank is cooled, it is baked at a temperature of 800°C for 1 hour ...

Embodiment 2

[0042] The carbon slide material in this embodiment includes 35 parts of petroleum coke powder, 28 parts of pitch coke powder, 6 parts of natural graphite powder and 7 parts of artificial graphite powder.

[0043] The preparation method of the copper-impregnated carbon sliding plate of the present embodiment, its step comprises:

[0044] (1) After stirring the carbon slide material at a temperature of 130°C for 45 minutes, kneading at a temperature of 170°C for 85 minutes.

[0045] A three-dimensional network structure is built in advance with metal wires, which are first placed in the pressing mold and then the kneaded carbon skateboard material is poured into the pressing mold. The pressing mold is pre-pressed for 35 minutes at a pressure of 17 MPa. After the pressed material column was cured at a temperature of 140° C. for 5 hours, the cured material column was pressed into a carbon skateboard blank. After the carbon slide blank is cooled, it is baked at a temperature of 9...

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Abstract

The invention discloses a copper-impregnated carbon contact strip material and a preparation method of a copper-impregnated carbon contact strip, and belongs to the technical field of carbon contact strip preparation. The preparation method of the copper-impregnated carbon contact strip comprises the following steps: performing stirring on a carbon contact strip material, performing kneading, placing the kneaded material in a three-dimensional net structure pressing mold constructed by metal wires, performing pre-pressing treatment, performing solidification treatment and performing roasting treatment to obtain a carbon contact strip; and performing pickling treatment on the carbon contact strip, and performing immersion treatment in a copper solution to obtain the copper-impregnated carbon contact strip. The copper-impregnated carbon contact strip material comprises the following raw materials: 30-45 parts of petroleum coke powder, 26-32 parts of pitch coke powder, 5-10 parts of natural graphite powder and 6-9 parts of artificial graphite powder. The method for preparing the copper-impregnated carbon contact strip provided by the invention can easily realize impregnation in the copper solution without adding high temperature and high pressure, the impregnation rate of the copper solution is high, and the copper-impregnated carbon contact strip prepared by the method has high electrical conductivity, mechanical properties and wear resistance.

Description

technical field [0001] The present invention relates to the technical field of carbon slide plate preparation, in particular to a copper-impregnated carbon slide plate material and a method for preparing a copper-impregnated carbon slide plate, and more particularly to a high-speed train pantograph copper-impregnated carbon slide plate material and the preparation of a copper-impregnated carbon slide plate method. Background technique [0002] The high-speed train mainly obtains energy from the catenary wire through the pantograph slide plate during the running process, so as to drive the train. Once an accident occurs between the pantograph slide plate and the catenary wire, it will bring about very serious consequences and directly cause major economic losses. It can be seen that the only energy source of the high-speed train is the energy captured from the catenary wire by the pantograph. Therefore, the stable quality of the skateboard is the prerequisite for the normal ...

Claims

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Application Information

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IPC IPC(8): C04B35/76C04B35/52C04B41/90B60L5/20
CPCB60L5/205B60L2200/26C04B35/806C04B35/52C04B35/76C04B41/009C04B41/5127C04B41/90C04B2235/5224C04B2235/77C04B2235/96C04B41/4523
Inventor 吴广宁佘鹏鹏魏文赋高国强杨泽锋何帅王帅廖前华
Owner SOUTHWEST JIAOTONG UNIV
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