A kind of automobile spraying method utilizing color paint sharing system

Abstract

The invention discloses an automobile spraying method using a color paint sharing system, which is characterized in that the steps are: electrophoresis treatment of the car body→spraying white middle paint→spraying white base paint at the first station of the color paint→spraying the white base paint at the second station of the color paint according to the following steps: Body design color selection process: when the design color is pearl white, the robot automatically sprays pearlescent paint; when the design color is plain white, the robot is empty → pre-drying of the color paint → spraying varnish; the spray film thickness of the white intermediate paint is 18‑22 μm The thickness of the sprayed film of the white base paint on the first station of the colored paint is 10-18 μm; the thickness of the sprayed film of the pearl white car pearl paint on the second station of the colored paint is 5-10 μm. The automobile spraying method of the present invention reduces the occupied quantity of the color paint main pipeline in the painting workshop by one, and at the same time, the plain white car and the pearl white car can be produced on the same line without competing for color paint resources.

Description

technical field [0001] The invention relates to the field of automobile manufacturing and processing, in particular to an automobile spraying method utilizing a color paint sharing system. Background technique [0002] Pearl white is a relatively popular car body color at this stage. It is widely favored by consumers and has a relatively large share in the passenger car market. Pearl white is an advanced product of plain white, which generally refers to the addition of a pearlescent paint layer with mica powder as the main component on the original plain white primer, so that the white shows a reflective effect similar to pearls. At present, almost all automobile factories are equipped with pearl white as the commercial color of the body. Automotive pearl white is generally a two-color paint coating product, also see pearl white paint containing pearl powder materials. However, the pearl effect and appearance are poor, and the general body factory painting line does not us...

AI Technical Summary

Problems solved by technology

[0003] However, the particularity of pearl white determines that it needs to occupy two sets of paint transmission and mixing pipelines (one set of white base paint and one set of pearlescent paint). Due to the conditions of the painting site, the cost pressure of adding two pipelines is relatively high

In the prior art, plain white white base paint and pearl white white base paint are completely different products, so they cannot be mixed in the same color paint pipeline. If plain white is already produced on the production line, adding pearl white will It means that there are three color paint pipelines for "white" (one plain white, two pearl white), and generally few models are produced with these two whites at the same time

Therefore, most painting lines are faced with the problem of how to allocate the two whites: if two whites (plain white and pearl white) are kept on the production line, the white resources will take up too much, and the renewal, loss, and cost pressure will be great; if only Retaining one of plain white and pearl white will result in that models equipped with these two whites cannot be produced on the same line, or the color configuration of the model must be changed

[0004] In the prior art, the gray mid-coat is generally used, and the engineering covering film thickness of the white paint painted in the gray is generally about 30 μm. If the production is simply mixed with plain white and pearl white, the total film thickness of the pearl white paint will be too large , the risk of sagging and pinholes is greater, and the quality of the paint is unstable

[0005] Therefore, due to the difficulty of debugging and cost considerations, OEMs generally produce plain white and pearl white in separate lines to avoid waste of resources in a single production line, which greatly limits the adaptability of the production line, and many models cannot invest in resources to allocate more A good production line may waste a lot of manpower and material resources due to repeated debugging

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