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Manufacturing method of carbon fiber-reinforced copper-based pantograph slide plate material

A technology for pantograph slides and manufacturing methods, applied in the field of manufacturing carbon fiber reinforced copper-based pantograph slide materials, capable of solving problems such as low bonding strength, peeling, and pull-out of reinforcements, and achieving low arc sensitivity and high electrical conductivity Good, good anti-friction effect

Inactive Publication Date: 2013-12-25
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many practical application problems in the research of composite materials at home and abroad that have not been satisfactorily resolved, mainly because the composite interface can only be mechanically interlocked, and the bonding strength is low, which often causes the reinforcement to pull out when subjected to load or impact. come out, peel off or fall off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The first step is the preparation of copper-graphite composite powder matrix material.

[0009] First mix electrolytic copper powder and flake graphite (4wt%) powder (copper powder average particle size is 300 mesh, density is 8.96g / cm 3 ;The average particle size of graphite is 25μm, and its density is 2.09~2.23g / cm 3, mass fraction of 4%) was put into a three-dimensional swing-type high-energy ball mill for ball milling for 24 hours, the ball-to-material ratio was 4:1, and the rotation speed was 500r / min. During the milling process, add a small amount of acetone as a control agent to the ball milling tank every three hours to prevent the balls and the powder on the inner wall of the ball milling tank from adhering. The tank is filled with argon as a protective atmosphere. In order to prevent oxidation, the powder after ball milling is sealed.

[0010] In the second step, copper is plated on the carbon fiber surface. Composite plating method combining chemical pre...

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Abstract

The invention discloses a manufacturing method of a carbon fiber-reinforced copper-based pantograph slide plate material. The carbon fiber-reinforced copper-based pantograph slide plate material comprises copper, graphite and carbon fibers. The manufacturing method is characterized by comprising the following steps of preparing graphite and electrolytic copper powder into composite powder as a base material having a nano-structure by a mechanical alloying method, carrying out alloying treatment on carbon fiber surfaces so that copper planting layers having the thickness of 30-40 microns are covered on the carbon fiber surfaces, cutting the carbon fibers plated with copper into segments, and carrying out sintering to compound the segments and the base material. A pantograph slide plate prepared from the carbon fiber-reinforced copper-based pantograph slide plate material has the characteristics of good antifriction, good wear resistance, good conductivity and low arc sensitivity. The carbon fiber-reinforced copper-based pantograph slide plate material can be used for railway trains, subway trains and urban railway trains, can also be used for similar products of related industries such as motor brush and moving contact industries, and opens a new path for slide electric contact materials.

Description

technical field [0001] The invention relates to a manufacturing method of a carbon fiber reinforced copper base pantograph sliding plate material. Background technique [0002] The pantograph skateboard (referred to as the skateboard) is an important current-collecting component for electric locomotives to obtain power from the catenary. Electric locomotive pantograph slides have mainly experienced pure metal slides (copper slides, mild steel slides), pure carbon slides, powder metallurgy slides (iron-based and copper-based), metal-impregnated carbon slides, composite slides, metal-based or non-metallic slides The development history of matrix composite skateboard. Due to the continuous development of railway electrification and high speed, the requirements for skateboard materials continue to increase. The development trend of skateboards will be carbon fiber skateboards, metal fiber skateboards, metal matrix composites with self-lubricating and other lubricating functions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/14C22C47/04C22C101/10C22C121/02
Inventor 冉旭
Owner CHANGCHUN UNIV OF TECH
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