关键词: 涂层；涂装工艺；盐雾试验；耐腐蚀性

Abstract: In automobile manufacturing, painting is crucial for its appearance quality and corrosion resistance, multiple processes coatings constitute an important protective system for automobile surface, playing different roles respectively. In order to evaluate the quality of paint shop production coatings, a scientific testing plan is developed in terms of sample preparation, test items, test methods and sampling, monitoring the coating quality of each process through salt spray and coating mechanical property test, which have achieved good results in production quality control. In this paper, the laboratory testing methods and application practices of Beijing Benz automotive coating are summarized, to provide reference for coating quality inspection and evaluation in automotive industry.

Key words: coating; painting process; salt spray test; corrosion resistance