Paint-spraying-free repair process for moderate and severe scratches of automobile

Abstract

The invention provides a paint-spraying-free repair process for moderate and severe scratches of an automobile. Only a scratched part is grinded in the foundation grinding process, so that secondary damage to automobile paint in the foundation grinding process is avoided; before point compensation, the automobile paint is mixed to obtain the uniformly mixed automobile paint, and only the mixed automobile paint is used for point compensation in the point compensation process, so that the phenomena of exposed fine lines, bubbles and layering of inner layers caused by the multiple layers of automobile paint with different textures are avoided; in the process of point compensation, a method that the paint surface is 0.5-1 mm higher than the original vehicle paint surface after a plurality of times of point compensation is adopted, and then a mode of combining scraping, grinding and polishing is carried out to gradually remove the redundant vehicle paint. Through the repair in the process,the automobile scratches are effectively repaired, the scratches are flat and free of grooves after the repair, and the periphery of the scratches is free of chromatic aberration, no water-free sand marks, no aperture and no glare from the original automobile paint.

Description

technical field [0001] The invention belongs to the field of automobile repair, and in particular relates to a paint-free repair process for medium and severe scratches on automobiles. Background technique [0002] With the rapid development of society, cars have become an indispensable means of transportation in family life. With the increase in the number of cars, the number of car accidents also increases year by year. In addition to traffic accidents, cars are also prone to scratches during driving and parking. Almost every car will inevitably encounter scratches and needs to be repaired. Traditional sheet metal painting repairs are not only time-consuming and costly, but also extremely harmful to the environment. Traditional sheet metal spray painting adopts the process of spraying paint, and the mist evaporated by spray paint diffuses into the air, which is easily inhaled into the human body and endangers the health of the human body; since the paint is atomized duri...

AI Technical Summary

Problems solved by technology

The traditional sheet metal painting repair is not only a waste of time and high cost, but also has great harm to the environment

Traditional sheet metal spray painting adopts the process of spraying paint, and the mist evaporated by spray paint diffuses into the air, which is easily inhaled into the human body and endangers the health of the human body; since the paint is atomized during the painting process, in addition to causing greater harm to the human body In addition, the paint will also enter the air, causing great harm to the environment; the most critical thing is that when car scratches are repaired by using the sheet metal painting process, the painted sheet metal parts are prone to color difference, and the putty is easy to bulge. Ineffective

[0003] In the prior art, in order to solve the problems in the repair process of sheet metal painting, there is also a paint-free repair process, but usually the paint-free repair process in the prior art uses alcohol to wipe first, and then judges the type of scratches. Different types are repaired accordingly; on the one hand, in the process of repairing serious scratches and exposed scratches, it is difficult to achieve a smooth repair without painting in the existing technology, and there are generally grooves or color differences; on the other hand On the one hand, in the prior art, the paint spraying process is usually used for repairing scratches. First, the color paint is applied, and then the varnish is applied. After this repair, there are small traces of lines. Due to the high temperature during the polishing process, it is also easy to cause the loss of the varnish layer, resulting in grooves

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