A parameterized deposition rate model of electrostatic spraying rotating bell atomizer

IF 2.3 4区 材料科学 Q2 Chemistry Journal of Coatings Technology and Research Pub Date : 2023-01-03 DOI:10.1007/s11998-022-00721-y
Peilun Zhang, Weiguo Gao, Chen Zhao, Xuhao Wang, Xiangzhi Meng
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引用次数: 1

Abstract

Compared with spray gun painting, electrostatic spraying rotating bell (ESRB) painting can provide better film-forming quality and higher adhesion rate, which is more suitable for automobile base coating. However, the complexity of the spray pattern of the ESRB and the automobile surface geometric makes the spray process planning a more challenging problem. This paper aims to provide a new parameterized model of the ESRB to facilitate the thickness calculation and trajectory planning in the off-line painting programming. Firstly, according to the distribution characteristics of paint particles and the force analysis of adhesion process, a new static deposition rate model—offset asymmetric Gaussian model is proposed on the plane. The parameters in the new model have intuitive practical significance and can fully reflect the characteristics of ESRB coating deposition rate. Then based on the analysis of the relationship between the static model and uniform linear spraying deposition, the static model is established by measuring the layer data of corresponding uniform linear spraying. In order to further simulate the paint thickness on curved surfaces, the projection model with variable spraying distance and deposition point normal deflection is also deduced. Finally, a parameterized static model and sampling points library are established which provide efficient and accurate prediction of static deposition result, and is more suitable for off-line programming. Three different groups of simulation proved that the proposed static deposition rate model has high calculation accuracy for different working conditions and fast simulation speed for different spraying parameters.

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静电喷涂旋转钟形雾化器沉积速率参数化模型
与喷枪喷涂相比,静电喷涂旋转钟形(ESRB)喷涂能提供更好的成膜质量和更高的附着力,更适用于汽车基层涂装。然而,由于ESRB喷射模式和汽车表面几何形状的复杂性,使得喷射工艺规划成为一个更具挑战性的问题。本文旨在提供一种新的ESRB参数化模型,以方便脱机涂装规划中的厚度计算和轨迹规划。首先,根据涂料颗粒的分布特点和粘附过程的受力分析,在平面上提出了一种新的静态沉积速率模型-偏置不对称高斯模型。新模型中的参数具有直观的实际意义,能充分反映ESRB涂层沉积速率的特点。然后在分析静态模型与均匀线性喷涂沉积关系的基础上,通过测量相应均匀线性喷涂的层数建立静态模型。为了进一步模拟曲面上的涂料厚度,推导了变喷涂距离和沉积点法向偏转的投影模型。最后,建立了参数化静态模型和采样点库,对静态沉积结果进行了高效、准确的预测,更适合离线编程。三组不同的仿真结果表明,所提出的静态沉积速率模型在不同工况下具有较高的计算精度,在不同喷涂参数下具有较快的仿真速度。
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来源期刊
Journal of Coatings Technology and Research
Journal of Coatings Technology and Research CHEMISTRY, APPLIED-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
4.40
自引率
8.70%
发文量
0
期刊介绍: Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.
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