面漆精加工工艺

Fine finishing process for topcoat

为得到更优的面漆外观,对常规工艺流程进行了调整,对比了增加电泳层整打磨、底层加喷清漆和湿膜加喷清漆后面漆的鲜映性(DOI),短波和长波数据,并探讨了相关操作对漆膜外观的影响。最终确定了采用底层加喷清漆后打磨及外表面加喷一层清漆的方案。

Aiming to obtain better topcoat appearance,the conventional procedure was adjusted.The DOI(distinctness of image),short wave,and long wave of the topcoats obtained after adding a polishing step for the whole electrodeposition coating,an extra varnish layer prior to basecoat spraying,and a wet-on-wet extra varnish respectively were compared.The effects of related operations on topcoat appearance were discussed.The optimal improvement scheme was determined as follows:spraying an extra varnish layer prior to basecoat spraying and polishing,and spraying an extra varnish layer on the original wet topcoat.