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Technique and process for renovating life-terminating carbon / carbon aviation brake disc

A brake disc, aviation technology, applied in the direction of friction linings, mechanical equipment, etc., can solve problems such as damage and environmental pollution, and achieve the effects of simple process, reduced equipment, and low scrap rate

Inactive Publication Date: 2009-04-22
杨力
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the abandoned brake discs cause great pollution and damage to the environment.

Method used

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  • Technique and process for renovating life-terminating carbon / carbon aviation brake disc
  • Technique and process for renovating life-terminating carbon / carbon aviation brake disc
  • Technique and process for renovating life-terminating carbon / carbon aviation brake disc

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Experimental program
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Effect test

Embodiment Construction

[0022] The present invention provides a kind of refurbishment of a carbon / carbon aviation brake disc and its technology after the end of life, and the specific implementation steps are as follows:

[0023] Such as figure 1 As shown, the technical process of the present invention includes 8 processes, including: 1. Detection process, 2. Cutting process, 3. Grooving process, 4. Bonding process, 5. Shaping process, 6. Deposition process, 7. Again Shaping process, 8, coating process and other components.

[0024] 1. Inspection process. First of all, check the appearance of the brake disc after the end of life, observe the degree of wear on the surface of the brake disc, and whether there are other damages, such as cracks, etc.; Density, strength and other indicators determine whether the repair is possible or not, and the correction index is set, that is, the cutting thickness.

[0025] 2. Cutting process. According to the correction index set in the inspection process, the re...

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Abstract

The invention relates to a renovation technology of a carbon / carbon aviation brake disc which reaches the service life, and a process thereof. The process comprises the following eight procedures: determining whether the carbon / carbon aviation brake disc which reaches the service life can be repaired by detecting various indexes of the brake disc, and determining the modification indexes; cutting off the worm surface of the brake disc to expose the new internal surface; pulling out a tooth-shape groove on the surface of the brake disc, and meshing two or more brake blades by the tooth-shape groove; macroscopically combining the brake disc by a special high-temperature bonding agent; machining and shaping the bonded brake disc and causing the brake disc to be close to the size of a finished product; performing a chemical vapor deposition process on the bonded brake disc, and causing the spliced brake disc to be connected microscopically; machining and shaping the brake disc treated by the chemical vapor deposition again to meet the requirement of the design size; and finally coating an oxidation resistant coating on a shaped semi-finished product to obtain a renovated finished product. By the technology and the process, about 40% of the carbon / carbon aviation brake discs which reach the service life can be renovated and reutilized, thus saving raw materials, reducing the great expenditure of the astronautical and aeronautical industries, and having environmental protection value.

Description

technical field [0001] The invention relates to a refurbishment technology and process of a carbon / carbon aviation brake disc after its service life. Background technique [0002] Aircraft brake discs are important consumable parts in aircraft take-off and landing braking devices. Carbon / carbon composite brake discs are light in weight, large in heat capacity, good in instantaneous heat absorption and wear resistance, and can withstand continuous braking and overload braking. When the temperature of the brake disc reaches above 1400°C, the carbon brake disc will not be deformed or bonded, and its service life is more than 1000 sorties, which is 4 times that of the steel brake disc. Due to the above reasons, since the 1990s, carbon brake discs have been widely used in large civil aviation aircraft and new military aircraft at home and abroad. [0003] However, internationally, the carbon / carbon composite brake disc market is almost monopolized by five companies from the Unit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/00
Inventor 杨力景丽
Owner 杨力
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