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一、概述 粉末涂敷的基本原理是:根据树脂粉末在带电之后能吸附在金属物体的表面或者在加热后能熔化成液态并能粘附在物体的表面的特性,通过采用高压静电电晕放电或摩擦带电的方法使树脂粉末带上电荷,或通过加热使树脂粉末熔化,并将其均匀地涂敷在金属物体的表面,再经后热处理使涂层固化或塑化,在物体的表面形成一层附着牢固、坚韧光滑的高分子树脂涂层。根据选用的树脂粉末配方以及涂层厚度等的不同,该涂层可具有优良的防护装饰性能、防腐蚀性能或电气绝缘性能。
First, an overview of the basic principles of powder coating is: According to the resin powder can be charged in the metal surface after adsorption or can be melted in the liquid state after heating and can be adhered to the surface properties of the object, through the use of high-voltage electrostatic corona discharge Or triboelectrification, the resin powder is electrically charged, or the resin powder is melted by heating and uniformly applied to the surface of the metal object, and the resulting layer is cured or plasticized by post-heat treatment to form a coating on the surface of the object A layer of firm, tough and smooth polymer resin coating. Depending on the choice of resin powder formulation and the thickness of the coating, the coating may have excellent decorative, corrosion or electrical insulation properties.