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我厂产品喷涂CO6—1铁红醇酸底漆和CO4—42黑色醇酸磁漆。在喷涂后而未固化的漆腆上,有圆而不规则密积而不均匀的突起物,直径约0.5～1毫米,一般无裂口或针孔,轻微触及即行破裂,泡内呈现液相状态。因此,影响生产,甚至导致停产。经分析,起泡的主要原因是厂房无调温调湿设备,致使在喷涂过程中由于溶剂急剧挥发,漆膜附近的大气降低到“露点”温度,水份开始在膜层中以微细水粒状态吸附在低附着点区。而当细水粒直径超出光披波长的一半时,蒸汽压就迫使漆膜形成点状膨胀而起泡。
Our products spray CO6-1 iron red alkyd primer and CO4-42 black alkyd enamel. Unpainted lacquer on the lacquered lacquer after spraying, irregular and irregular buildup and uneven protrusions with a diameter of about 0.5 to 1 mm, generally no cracks or pinholes, ruptured with a slight touch, the liquid phase in the lather . Therefore, the impact of production, and even lead to shutdown. After analysis, the main reason for foaming is that the factory has no temperature and humidity control equipment, causing the solvent to volatilize rapidly in the spraying process. The atmosphere near the paint film is lowered to the dew point temperature, State adsorption in the low attachment point area. When the water particle diameter exceeds half the wavelength of the light, the vapor pressure forces the film to form a dot-like bulge and blister.