Workpiece coating repair method

Abstract

The invention relates to the field of workpiece coating repair, and discloses a workpiece coating repair method. The workpiece surface is provided with an original coating (2) and a damage area (1), and the workpiece coating repair method comprises the steps that firstly, the damage area (1) and an expansion area (3) are ground, and the expansion area (3) is divided into n areas; secondly, repair paint with the material the same with the original coating (2) is sprayed to the damage area (1); thirdly, different mixtures of repair paint and connector repair paint are sequentially sprayed to n-1 areas of the inner side of the expansion area (3); fourthly, the area on the outmost side of the expansion area (3) is sprayed with the connector repair paint, and waiting for the connector repair paint drying is carried out. Through the technical scheme, the areas of the repair paint and the connector repair paint and the spraying area of the connector repair paint with the proportion sequentially reduced are sprayed between the repair paint and the original coating, transition of multiple levels of colors can be achieved between the repair paint and the original coating, the color transition is stable, and the color can be more easily accepted by the vision.

Description

technical field [0001] The invention relates to the field of workpiece coating repair, in particular to a workpiece coating repair method. Background technique [0002] In the existing coating process of construction machinery, the top-painted assembly of parts is basically the main method. During use, when the paint surface of the part is partially damaged, it needs to be repaired with the original finish paint. In order to reduce the color difference between the old coating and the new coating, when repairing, it is generally sanded directly on the damaged part of the old coating, and then spray a layer of repair paint on the center area first, and then spray a layer of interface water on the edge of the repair paint , so that the refinish paint can slowly transition to the old coating, so that the color difference between the new coating and the old coating can be controlled within the visually acceptable range as much as possible. However, in the actual production proc...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the invention is to provide a method for repairing the coating of workpieces to solve the problem that the color transition between the old and new coatings is not smooth enough

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