关键词: 桔皮问题；车身面漆；波长值；漆膜厚度

Abstract: The appearance quality of the body is an important index parameter of the vehicle, and the problems are the most easily criticized by users. Based on the orange peel problem of the body finish paint of X model, this paper finds the the excessive long wave value is the cause of the orange peel after measuring the finish paint parameters of the model in question. Based on the production process, multiple factors affecting that may affect the wavelength value are analyzed and verified. It is found that the roughness of the left and right rear wing plates, the low humidity of the spray booth of the automatic station in the middle and the insufficient bonding rate of the external spraying robot cause the long wave value of the top paint for the X model and the orange peel problem. According to the three main reasons, the problem is solved by adjusting the parameters of the painting process, and the paper summarizes the process of problem generation, analysis and verification, which has a good reference for the solution of similar problems.

Key words: Orange peel problem; Body finish paint; Wavelength value; Paint film thickness