近年来,随着环氧聚酯、聚酯粉末喷涂在家电制造业的普及应用,家电的美观程度和耐蚀性得到很大提高。粉末静电喷涂前要对基材进行磷化处理。以冰箱外观件为例,前处理工艺流程为:预脱脂→脱脂→自来水冲洗→表调→磷化→自来水冲洗→循环去离子水洗→新鲜去离子水洗→干燥。在磷 In recent years, with the popularity of epoxy polyester, polyester powder coating in the appliance manufacturing industry, the aesthetic level and corrosion resistance of home appliances have been greatly improved. Electrostatic powder coating before phosphating the substrate. Taking the appearance of the refrigerator as an example, the pretreatment process flow is as follows: pre-defatting → defatting → tap water washing → surface adjusting → phosphating → tap water washing → circulating deionized water washing → fresh deionized water washing → drying. In phosphorus