一、机械工厂常用涂料第二、三两讲扼要阐述了涂装前处理。涂装前处理的任务在于使需要涂漆的工件表面成为合乎涂装要来的表面,以便接着进行涂漆。涂漆以已知的工件和涂料为依据。关于选择涂料的原则在第一讲第(三)节内已作简要说明,本节 First, the common paint factory machinery Second, three briefing briefly described the pre-coating process. The task of pre-painting is to make the surface of the workpiece that needs to be painted into a surface that is suitable for painting, so as to be followed by painting. Paints are based on known workpieces and coatings. The principle of choice of paint has been briefly described in section (c) of Part One, in this section