外饰件漆膜针孔缺陷分析与解决

Analysis of pinhole defect of coating on exterior decorative parts and countermeasures

分析了某商用重卡车型外饰件喷涂出现的针孔缺陷,判断稀释剂挥发速率异常是主要原因。通过调整油漆助剂,改善稀释剂挥发速率,有效解决了问题。

The formation of pinhole defect in spraying of exterior trims on a commercial heavy-duty truck was analyzed.The abnormal volatilization of thinner was determined to be the main reason.The problem was solved after adjusting the additives in paint,modifying the volatilization rate of thinner.