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Preparation process of copper-based composite material pantograph slide plate

A copper-based composite material, pantograph skateboard technology, applied in current collectors, electric vehicles, power collectors, etc., can solve the problems of complexity and low efficiency, and achieve low cost, good electrical conductivity and wear resistance. Effect

Active Publication Date: 2018-09-28
DATONG XINCHENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, to ensure the conductivity and self-lubricating properties of carbon skateboards, the metal impregnation process is generally adopted, but the current metal impregnation process for carbon skateboards is relatively complicated and the efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation process for a copper-based composite material pantograph sliding plate, comprising the steps:

[0040] S1. Raw materials, petroleum coke, flake graphite, alumina-based β-Sialon powder, copper powder, modified coal tar pitch, graphene, phenolic resin, lead alloy;

[0041] Copper-lead alloy, petroleum coke, alumina-based β-Sialon powder, particle size 90-130 mesh;

[0042] The content of each component in the copper-lead alloy is Cu64-65%, Pb23.5%, and the balance is Sn+Si+Ni and others;

[0043] The average particle size of the graphene is 50-100 mesh, the tensile modulus is ≤1.01TPa, and the ultimate strength is ≤116Gpa;

[0044] The softening point of the modified coal tar pitch is 90-100°C, the coking value is ≥55%, and the ash content is ≤0.20%;

[0045] S11. Put the flake graphite and graphene into the roasting furnace, fill it with a protective gas with a pressure of 1-1.5MPa, and roast at a high temperature of 1300°C for 1-2 hours;

[0046] S12. C...

Embodiment 2

[0068] A preparation process for a copper-based composite material pantograph sliding plate, comprising the steps:

[0069] S1. Raw materials, petroleum coke, flake graphite, alumina-based β-Sialon powder, copper powder, modified coal tar pitch, graphene, phenolic resin, lead alloy;

[0070] Copper-lead alloy, petroleum coke, alumina-based β-Sialon powder, particle size 90-130 mesh;

[0071] The content of each component in the copper-lead alloy is Cu64-65%, Pb23.5%, and the balance is Sn+Si+Ni and others;

[0072] The average particle size of the graphene is 50-100 mesh, the tensile modulus is ≤1.01TPa, and the ultimate strength is ≤116Gpa;

[0073] The softening point of the modified coal tar pitch is 90-100°C, the coking value is ≥55%, and the ash content is ≤0.20%;

[0074] S11. Put the flake graphite and graphene into the roasting furnace, fill it with a protective gas with a pressure of 1-1.5MPa, and roast at a high temperature of 1250°C for 1-2 hours;

[0075] S12. C...

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Abstract

The invention discloses a preparation process of a copper-based composite material pantograph slide plate. The preparation process comprises the following steps: S1, selecting raw materials; S2, mixing powders; S3, bonding; S4, mold pressing; S5, naturally drying the green brick in S4 in a shade place for 30-40 hours, and adding into a dry kiln for drying at a temperature of 250-300 DEG C for 10-15 hours; S6, putting the green brick treated in S5 into a roasting furnace, vacuumizing, and calcining at a high temperature of 2300 DEG C; S7, taking out a carbon matrix treated in S6, removing surface burrs, cleaning by adopting a high-pressure water gun, opening surface pores, and drying for later use; S8, adding the carbon matrix treated in S7 into an impregnation tank, vacuumizing, heating the carbon matrix to a temperature of 600-800 DEG C, and maintaining for 3-4 hours; heating modified coal pitch to a temperature of 200 DEG C, pouring into the impregnation tank, filling shielding gas into the impregnation tank, enabling the air pressure in the impregnation tank to be 10-15 MPa, and maintaining for 8-12 hours; S9, taking out the carbon matrix treated in S8, and cleaning the surface;S10, processing the carbon matrix treated in S9 into a carbon slide plate, so as to obtain the product.

Description

technical field [0001] The invention relates to a process for manufacturing a pantograph carbon sliding plate, in particular to a preparation process for a copper-based composite material pantograph sliding plate. Background technique [0002] The power connector of the electric locomotive is the pantograph carbon slide, and the important material of the carbon slide is the carbon slide. Its working principle is that the carbon sliding bar rubs against the contact grid to collect electricity and transmit it to the electric locomotive to maintain its normal operation. Since the working environment is carried out in a natural environment, sometimes it will be exposed to freezing rain, ice and snow in bad weather, and it is still running at high speed, and it will constantly generate friction with the contact grid. During the friction process, there will be arcs, shocks, etc., so It is also a frequently replaced part. [0003] It can be seen that the comprehensive performance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/52C04B35/532C04B35/622B60L5/08
CPCB60L5/085C04B35/522C04B35/532C04B35/622C04B2235/3869C04B2235/40C04B2235/407C04B2235/422C04B2235/96
Inventor 武建军
Owner DATONG XINCHENG NEW MATERIAL CO LTD
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