HAN Wen¹, WU Qi², XU Han³, WANG Wei⁴

(School of Mechanical and Electronic Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, Jiangxi, China)

Abstract:I n order to solve the inhomogeneity of glaze drip distribution on the ceramic surface in the progress of electrostatic spraying, the Euler-Lagrange method was adopted to establish a DPM model for the action in electrostatic field, then the CFD software was used to analyze the glaze drip diameter distribution and the velocity distribution under unapplied voltage, -15 kV, -30 kV and -50 kV. The Result showed that electrostatic glazing broadened glazing range, produced smaller and well-distributed glaze drip diameters, increased the speed of glaze droplets and made their velocities more uniform. The best glazing performance was achieved with the most evenly distributed glaze drip under the applied voltage of -30 kV.

Key words: electrostatic field; glazing; glaze drip; CFD; particle diameter; velocity