Anodizing and spray paint are common surface treatment processes in prototype manufacturing. Spray paint is to spray a layer of paint on the surface of the prototype.The customer only needs to provide the corresponding pantone color number,The prototype manufacturer can spray the corresponding color on the surface of the prototype. And oxidation is to dip the aluminum alloy hand plate in the liquid medicine,Let the potion corrode into the aluminum alloy prototype, thus changes the aluminum alloy prototype the color. Although both oxidation and oil injection are used to color the surface of the prototype. But there are differences between them, difference as follows:
1.According to materials, the spray paint can be applied to many different materials. Such as metal, plastic and resin, While anodizing is process only available for aluminum alloy prototype.
2, the durability of the color is different,Since the spray is only a layer of paint on the surface of the hand, it will come off over time. And anodizing is to dip the aluminum alloy prototype in the liquid medicine, so that the surface of a layer of oxide film. Because the alumina that oxidation produces is a kind of stable material, produce reaction very hard with the oxidation in air, so the color of the surface is more stable, fall off not easily. The anodizing color has a metallic texture and looks high-end and classy. With the injection, The color of the spray paint can reach 80% of the color of the oxidized product, which is very good.
Under normal conditions,Stainless steel and copper cannot be anodizing. Only aluminum alloy can be anodizing. But different aluminum alloys have different oxidation effects.For example, the aluminum alloy 7075 doesn't oxidize very well because it has copper in it. Generally, aluminum alloys starting with 5 and 6 can be oxidized, and aluminum alloy 6061-t6 has the best oxidation effect.
Usually need sandblasting before oxidation, otherwise it will affect the appearance of aluminum alloy prototype;Similarly,If the surface of the aluminum alloy hand plate is high light oxidation, is high light oxidation effect.If you want to make the aluminum hand is natural, just polish it smooth, and then sandblast.
When the aluminum alloy prototype after oxidation, the aluminum oxide is a relatively stable material,It won't react with the oxygen in the air again, so it stays that color for a long time.Accordingly, the purpose that aluminous alloy prototype oxidizes basically has two: First, it is to prevent prototype surface to be corroded, Second, it is to improve the pretty of the prototype.