Paint-spraying treatment process of electric vehicle metal plate

Abstract

The invention discloses a paint-spraying treatment process of an electric vehicle metal plate. The paint-spraying treatment process of the electric vehicle metal plate is characterized by comprising the following process steps: (1) brushing emulsion, namely coating one layer of the emulsion on the electric vehicle metal plate; (2) scraping putty powder, namely after the emulsion on the metal plate is dried, scraping the putty powder on a part, needing to be subjected to paint spraying, of the metal plate; drying and polishing; (3) coating priming paint, namely coating the priming paint on the metal plate on which the putty powder is scratched; (4) spraying finishing paint, namely shielding one part which does not need to be subjected to paint spraying and spraying paint on the metal plate by a paint spraying manner, and drying; and (5) polishing, namely polishing the metal plate sprayed with the finishing paint and sticking a label. According to the paint-spraying treatment process of the electric vehicle metal plate, the disadvantages in the prior art are overcome; the emulsion is brushed to further isolate air and prevent the metal plate from being rusted; the appearance of the metal plate is flat by scraping the putty powder and polishing; finally, the priming paint is brushed and the finishing paint is sprayed so that the times of brushing the priming paint can be reduced under the precondition that the dustproof capability is guaranteed; and the cost is effectively lowered, the dustproof capability is high, the appearance is beautiful and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of electric vehicle sheet metal spray painting, in particular to the treatment process of electric vehicle sheet metal spray paint. Background technique [0002] The existing sheet metal painting process: scraping the first layer of putty powder→grinding→scraping the second layer of putty powder→grinding→topping primer→topping primer→spraying topcoat→polishing; through multi-layer putty powder and multi-layer Primer is used to ensure the gloss and anti-rust ability of the surface. However, due to the market price positioning of electric vehicles, this treatment will undoubtedly greatly increase the cost. Some manufacturers save costs by reducing the treatment process of putty powder and primer, but there is no guarantee. Rust resistance. Contents of the invention [0003] The purpose of the present invention is to provide electric vehicle sheet metal painting treatment process, which overcomes the deficie...

AI Technical Summary

Problems solved by technology

[0002] The existing sheet metal painting process: scraping the first layer of putty powder→grinding→scraping the second layer of putty powder→grinding→topping primer→topping primer→spraying topcoat→polishing; through multi-layer putty powder and multi-layer The primer is used to ensure the gloss and anti-rust ability of the surface, but due to the market price positioning of electric vehicles, this treatment will undoubtedly greatly increase the cost. Some manufacturers save costs by reducing the treatment process of putty powder and primer, but there is no guarantee Rust resistance