Method for manufacturing airplane carbon brake wheel with double element carbon base optimal combination

An optimized combination, carbon brake disc technology, applied in the direction of mechanical equipment, friction linings, etc., can solve the problems of friction coefficient attenuation, braking performance deterioration, etc., achieve high friction characteristics, increase service life, and reduce wear rate.

Active Publication Date: 2006-12-20
XIAN CHAOMA SCI TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of the aircraft carbon brake disc made of the above-mentioned single matrix is: when the aircraft stops taking off (RTO) and brakes, its friction coefficient is severely attenuated, and the braking performance becomes poor.

Method used

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  • Method for manufacturing airplane carbon brake wheel with double element carbon base optimal combination

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) being that 30% by weight is used as the non-weft carbon cloth needle-punched integral prefabricated body of the carbon brake disc moving disc is packed in the thermal gradient vapor deposition furnace in the negative pressure directional flow, and 30% by weight is used as The non-weft carbon cloth needle-punched overall prefabricated body of the static disc and tail disc of the carbon brake disc is loaded into a negative pressure directional flow external thermal gradient vapor deposition furnace, and the temperature of the low-temperature side of the above-mentioned integral carbon disc prefabricated body is controlled to be 800 °C, and the high-temperature side The temperature gradient with the low-temperature surface is 30°C, and the carbon source gas C is adjusted according to the total mass of the preform 3 h 6 The flow rate can be 2.6m 3 / h, directional flow through the surface of the carbon plate prefabricated body, after 300 hours of carbon deposition proce...

Embodiment 2

[0023] (1) being that 30% by weight is used as the non-weft carbon cloth needle-punched integral prefabricated body of the carbon brake disc moving disc is packed in the thermal gradient vapor deposition furnace in the negative pressure directional flow, and 30% by weight is used as The non-weft carbon cloth needle-punched overall prefabricated body of the static disc and tail disc of the carbon brake disc is loaded into a negative pressure directional flow external thermal gradient vapor deposition furnace, and the temperature of the low-temperature side of the above-mentioned integral carbon disc prefabricated body is controlled to be 1000 °C, and the high-temperature side The temperature gradient with the low temperature surface is 380°C, and the carbon source gas C is adjusted according to the total mass of the preform 3 h 6 The flow rate can be 4.0m 3 / h, directional flow through the surface of the carbon plate prefabricated body, after 600 hours of carbon deposition pro...

Embodiment 3

[0027] (1) being that 30% by weight is used as the non-weft carbon cloth needle-punched integral prefabricated body of the carbon brake disc moving disc is packed in the thermal gradient vapor deposition furnace in the negative pressure directional flow, and 30% by weight is used as The non-weft carbon cloth needle-punched overall prefabricated body of the static disc and tail disc of the carbon brake disc is loaded into a negative pressure directional flow external thermal gradient vapor deposition furnace, and the temperature of the low temperature side of the whole carbon disc prefab is controlled to be 900 ° C, and the high temperature side is in contact with the The temperature gradient of the low temperature surface is 200°C, and the carbon source gas C is adjusted according to the total mass of the preform 3 h 6 The flow rate can be 3.0m 3 / h, directional flow through the surface of the carbon plate prefabricated body, after 450 hours of carbon deposition process, the ...

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Abstract

The invention is a method of making plane carbon brake disc by optimizing and combining binary carbon basal body, and its characteristic: placing a no-latitude carbon distribution needled precast body acting as dynamic disc of the carbon brake disc in negative pressure oriented inner thermal gradient gas-phase deposition furnace, and placing a precast acting as static disc of the carbon brake disc in negative pressure oriented outer thermal gradient gas-phase deposition furnace, controlling the temperature of the low-temperature surface of the above procast bodies at 800-1000 deg.C, temperature gradient at 30-380 deg.C, to make gas-phase carbon deposition for 300-600 hours, thus obtain a rough layer structural themolysis basal body at weight percent of 55%-65%, then making resin dipping-carbonized compaction to obtain optimized and combined binary carbon basal body with resin carbon at weight percent of 5%-15%, and finally making high-temperature graphitizing processing to obtain the brake disc material at hole rate less than 10%. At the time of plane braking to stop flying, it has the advantages of large friction coefficient, good braking performance and low cost.

Description

technical field [0001] The invention relates to a method for manufacturing an aircraft carbon brake disc, in particular to a method for manufacturing an aircraft carbon brake disc with an optimized combination of dual-element carbon substrates. Background technique [0002] At present, there are mainly three types of carbon matrix materials for manufacturing aircraft carbon brake discs at home and abroad: pyrolytic carbon, resin carbon and pitch carbon. British Dunlop Company, French Carbon Industie Company, American Goodyear, B.F.Goodrich Company, Domestic 514 Factory, Yantai Metallurgical New Materials Research Institute and other manufacturers that produce aircraft carbon brake discs all use a single pyrolytic carbon matrix; while American ABS Company uses A single resin carbon matrix, the Russian НИИΓРАХИТ Research Institute uses a single pitch carbon matrix. The biggest disadvantage of adopting the aircraft carbon brake disc made by the above-mentioned single matrix is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/00
Inventor 苏君明肖志超孟凡才周绍建辛建国彭志刚
Owner XIAN CHAOMA SCI TECH
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