Method of spraying and coating electric automobile coating piece surface and enabling painting surface to have reflective effect at night

Abstract

The invention discloses a method of spraying and coating an electric automobile coating piece surface and enabling a painting surface to have a reflective effect at night. The production method includes the steps of conducting preprocessing, conducting primer spraying and baking, conducting floating coating, conducting naturally leveling and surface drying, conducting finishing coat spraying, conducting baking and the like. The phenomenon that lifting occurs to a sprayed finishing coat when primer is not dried is eliminated, the problem that interlayer adhesion is poor due to excessive baking is solved, meanwhile, spraying time and energy are saved, the finishing coat of a coating piece plays a role in reflecting light, and safety is improved when an electric automobile conducts safe operation at night.

Description

technical field [0001] The invention relates to a painting process for painted parts of an electric vehicle, in particular to a method for spraying the surface of a painted part of an electric car and having a reflective effect on the painted surface at night. Background technique [0002] At present, the spraying process of the painted parts of electric vehicles mainly adopts the method of spraying and baking, and baking is done every time spraying. The specific spraying process is: workpiece degreasing, dust → spraying primer → baking → spraying topcoat → Baking. The spraying products processed in this way can meet the requirements of general conditions, but cannot be used at night, that is, when safety requirements are required. For example: the front and rear bumpers and the left and right sides of the body of an electric sanitation vehicle working at night. [0003] And in the production process, the workpiece is baked after the primer is sprayed. When the workpiec...

AI Technical Summary

Problems solved by technology

[0003] And in the production process, the workpiece is baked after the primer is sprayed. When the workpiece is not completely dried, it is easy to bite the bottom after spraying the topcoat, causing the workpiece to be repaired. For example, when the line is stopped due to equipment reasons, the workpiece is in the oven If the internal time is prolonged, there will be transitional baking, which will cause the adhesion between the primer and topcoat layers to decrease, resulting in unqualified workpieces