Use of carbon/carbon, carbon/ceramic composite material as brake lining, method and apparatus for making same

Abstract

The invention relates to the application of C / C and C / ceramic composite brake plate in motor vehicles, its preparing method: making the prefabricated piece, placing chemical liquid depositing device for chemical liquid deposition, graphitizing to form primary products; for size, processing into semifinished brake plate; coating the surface; sintering; finely processing to form finished composite brake plates. The device includes furnace body, vacuum system, condenser, water circulating system, liquid feeding system at the bottom of the furnace, the heated product placed on the base of the furnace body and a heating body in the center, where there are the inductor and the electric system connected of the doctor and variable-frequency power supply, both set on the periphery of the heated produce. It shortens the depositing time by several ten times or 101 times above, heightens the productivity, saves raw material and reduces product cost.

Description

Technical field [0001] The invention relates to motor vehicle brake pads, especially the application of carbon / carbon and carbon / ceramic composite brake pads on motor vehicles. Background technique [0002] With the emergence of subways, urban light rails, high-speed trains, cars, sports cars, and motorcycle racing, the braking problem of vehicles has gradually attracted people’s attention. Brake pads are an important part of the braking system; currently carbon / carbon, carbon / ceramic composites Material brake pads are only used in aviation aircraft. The method of producing such brake pads is mainly by chemical vapor deposition. This method has a long process of densification and takes a long time. It usually takes hundreds of hours or even months to complete. Due to the extremely low work efficiency, a great waste of energy and time, and the high cost of products, the brake pads used in the existing motor vehicles are made of metal or metal alloy. Such brake pads have the follow...

AI Technical Summary

Problems solved by technology

[0002] With the emergence of subways, urban light rail, high-speed trains, sports cars and motorcycle racing cars, the braking problem of vehicles has gradually attracted people's attention. Brake pads are an important part of the braking system; currently carbon / carbon, carbon / ceramic composite Material brake pads are only used in aviation aircraft. The main method of producing this kind of brake pads is chemical vapor deposition. Due to extremely low work efficiency, greatly wasted energy and time, and high product cost, the brake pads used in existing motor vehicles are made of metal or metal alloys. This brake pad has the following deficiencies when braking: A large amount of heat energy will be generated, and the temperature of the brake pads will rise sharply, which will reduce the performance of the brake pads and soften the brake pads, which will affect the safety of the vehicle and personal safety in severe cases.

Images