Surface potential measurements for predicting film thickness of electrostatically sprayed powders

Stanely G. Rawski, A. Elmoursi, Phuong-Anh Ngo, Robert A. Ottaviani
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Abstract

This paper investigates the possible correlation between the surface potential of electrostatically sprayed powders prior to bake to their cured film thickness. In this study, two different methods were used for supplying the powder to the spray gun. The first method used a fluidized bed (conventional system). The second series of tests were performed with a vibrating trough that delivered a fixed amount of powder (in-house setup). The experimental data does show that correlation does exist between the film thickness and the surface potential, but a single correlation factor can only be established for a fixed set of spraying conditions.
预测静电喷涂粉末膜厚的表面电位测量
本文研究了静电喷涂粉末烘烤前的表面电位与其固化膜厚度之间可能存在的关系。在本研究中,采用了两种不同的方法将粉末提供给喷枪。第一种方法使用流化床(常规系统)。第二系列测试是用一个振动槽进行的,该槽提供了固定数量的粉末(内部设置)。实验数据表明,膜厚与表面电位之间确实存在相关性,但只有在一组固定的喷涂条件下才能建立单一的相关因子。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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