Part surface coating stripping method and equipment

Abstract

The invention discloses a component surface coating peeling method and device, in particular to a component surface coating peeling method and device in the field of complex profile component coatingremoval. According to the adopted component surface coating peeling method, gas ions are used for bombarding a coating on the surface of a component, atoms on the surface of the component coating getrid of restraints of a coating body, and accordingly the coating gradually peels off. The component surface coating peeling device comprises a gas supply system, a vacuum chamber, a vacuum system, a hot filament ion source, an auxiliary anode, an electric field generation device, workpiece frames and a drive mechanism. The gas supply system communicates with a gas inlet of the vacuum chamber, anda lamp filament of the hot filament ion source and the auxiliary anode are located in the vacuum chamber. The component surface coating peeling method and device cannot be limited by coating kinds, the complex profile component coating can be thoroughly removed, meanwhile, a component base body covered with the coating cannot be influenced, and environment pollution is avoided.

Description

technical field [0001] The invention relates to a method and equipment for stripping the surface coating of parts, in particular to a method and equipment for stripping the surface coating of parts in the field of coating removal for parts with complex profiles. Background technique [0002] Surface coating technology provides effective protection for parts, which not only improves the function of parts, but also fully protects the integrity of the shape and properties of the substrate. Therefore, when the coated parts are used for a certain period, the coating on the surface is usually peeled off, and then recoated to restore its function to the ideal state and achieve the purpose of repeated use. [0003] For example, after a certain period of time, engine coating parts will be damaged to varying degrees, such as high temperature and high pressure oxidation corrosion will lose their proper functions and effects. Removal and restoration of its coating is inevitable. Howev...

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Problems solved by technology

[0023] 1. The change of coating type complicates the chemical stripping method and increases the difficulty of stripping;

[0024] 2. It is difficult to control the degree of coating removal by chemical stripping methods, including partial coating stripping, and it is easy to severely corrode the substrate of the coating;

[0025] 3. The chemical stripping method will bring pollution to the environment;

[0026] 4. Treatment methods such as sand blasting and mechanical ball milling are not easy to deal with parts with complex shapes, and cannot effectively remove all surface coatings;

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