汽缸体铸造毛坯和其它铸铁件一样,清理抛丸后大都浸防锈底漆。但采用浸漆访锈工艺有很多弊病,如清理后零件表面沾附的砂灰、铁末带入浸漆槽,污染漆液;缸体类箱体零件形状复杂,孔道、凹陷处多。在清理不到和底漆不干净的情况下,浸漆后砂粒等被包裹在零件上,影响漆膜附着力,降低防锈效 Cylinder block castings and other castings, like, after cleaning shot blasting mostly immersion rust primer. However, there are many drawbacks when using varnish to visit rust process. For example, after the cleaning, the surface of the parts is covered with gypsum and iron powder into the dipping paint tank to pollute the paint liquid. The parts of the cylinder type box body are complicated in shape, with many holes and depressions. In the clean up and the primer is not clean, the sand after dipping paint is wrapped in the parts, affecting the film adhesion, reduce rust