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首页> 外文期刊>Journal of coatings technology and research >The effects of basecoat bell application parameters on elements of appearance for an automotive coatings process
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The effects of basecoat bell application parameters on elements of appearance for an automotive coatings process

机译：底漆钟涂参数对汽车涂料工艺外观元素的影响

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This research investigated the effects of base-coat (BC) bell application parameters on the appearance of automotive vehicles. A full factorial two-level DOE matrix was created to test the impact of four BC bell zone variables on appearance: flow rate, shaping air, voltage, and bell speed. Paint age was a covariate in the analysis. Panels were sprayed with waterborne BC followed by solventborne clearcoat and cured vertically at 144℃. The appearance was characterized by measuring the DOI, surface waviness, and multiangle color. Flow rate, bell speed, and shaping air were found to have the most impact on surface waviness. In addition, four interactive effects were also found to be significant. Three of these interactive effects included flow rate in combination with the other parameters. The results of this study indicate that particle size and fluid atomization play a key role in paint appearance. Decreasing the flow rate and/or increasing bell speed lead to a smoother finish, but are also correlated to a darker appearance at near specular angles, whereas the opposite is true at far specular angles.
机译：这项研究调查了底漆（BC）铃应用参数对汽车外观的影响。创建了一个完整的阶乘两级DOE矩阵，以测试四个BC响铃区域变量对外观的影响：流速，成形空气，电压和响铃速度。油漆年龄是分析的协变量。面板先用水性BC喷涂，然后用溶剂型透明涂料喷涂，然后在144℃垂直固化。通过测量DOI，表面波纹度和多角度颜色来表征外观。发现流速，钟速和成形空气对表面波纹度影响最大。此外，还发现了四个交互作用也很重要。这些交互作用中的三个包括流速和其他参数。这项研究的结果表明，粒径和流体雾化在油漆外观中起关键作用。降低流量和/或提高钟形速度会导致光洁度更高，但同时也与在近镜面角处变暗外观相关，而在远镜面角处则相反。

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