A kind of reinforced pantograph composite carbon slide plate with carbon fiber veneer and preparation method thereof

Abstract

The invention discloses a strengthened pantograph compound carbon contact strip with a carbon fiber veneer and a manufacturing method of the strengthened pantograph compound carbon contact strip. The strengthened pantograph compound carbon contact strip used for electric locomotives and high-speed motor train units comprises a pantograph compound carbon contact strip body structure composed of carbon strips and an aluminum bracket, carbon fiber grid cloth tightly attached to the side face of the pantograph compound carbon contact strip body structure and an alloy carbon face layer tightly attached to the outer side of the carbon fiber grid cloth, wherein metal powder permeates into the internal tissue of the carbon fiber grid cloth. According to the strengthened pantograph compound carbon contact strip, carbon fiber high-electric-conduction sticking faces are arranged on the two side faces of the pantograph compound carbon contact strip body to form the strengthened pantograph compound carbon contact strip which has higher strength, higher electric conduction performance, higher toughness, higher impact resistance, higher crack resistance and higher block falling prevention performance than a carbon contact strip formed by carbon strips and an aluminum bracket, and the strengthened pantograph compound carbon contact strip is suitable for operation at the speed of 380 kg / h or higher.

Description

technical field [0001] The invention belongs to the field of rail transit equipment, and relates to a carbon fiber veneered reinforced pantograph composite carbon slide plate and a preparation method thereof, in particular to a carbon fiber veneered reinforced pantograph composite used for electric locomotives and high-speed EMUs Type carbon slide plate and method of preparation. Background technique [0002] With the rapid construction and continuous development of my country's high-speed railways, the construction of high-speed EMUs is also accelerating. So far, the number of high-speed EMUs in my country is close to 1,000, and the number of high-speed EMUs is still increasing. [0003] The operating power of electric locomotives and high-speed EMUs comes from the catenary wires mounted on the top of the high-speed EMUs. The pantograph carbon slide installed on the roof of the high-speed EMUs is in close contact with the wires with a top wire pressure of 6-8kg. Slide sync...

AI Technical Summary

Problems solved by technology

When electric locomotives and high-speed EMUs are running, they often encounter hard points caused by shifting and dislocation of wire nodes and suspension clamps due to climate change, strong winds and other factors, which will cause the carbon strip to break or break the carbon slide when sliding at high speed. Knocking off the blocks, some even blowing the carbon strips, leaving only the aluminum bracket surface will cause serious traffic safety accidents, and this situation will also burn the power grid and cause serious losses and consequences

In addition, the carbon strip and the aluminum bracket are bonded only by conductive adhesive, and the bonding strength is limited. In addition, the carbon skateboard receives a large amount of current during operation, and the high-speed friction causes the skateboard to heat up. Sometimes the temperature of the skateboard is as high as 400 degrees. At this time, the conductive adhesive will fail, and the carbon strip of the skateboard will break and fall off, causing accidents.

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