Aluminum panels have been widely used in the construction industry, especially in decorative materials. Therefore, the beauty of the aluminum sheet is more concerned. Therefore, more and more manufacturers are paying more attention to the beautiful surface of mill finish aluminum sheets. Here are five kinds of surface treatment methods for mill finish aluminum sheets:
Electrophoretic coating is to immerse a conductive object in an electrophoretic coating tank filled with water and diluted with a relatively low concentration as the anode (or cathode), and set a corresponding cathode (or anode) in the tank. After the direct current is connected for a period of time, a special coating method is deposited on the surface of the object to be coated with a uniform and dense coating film that is not dissolved by water. The electrophoretic coating process is accompanied by four chemical and physical changes, namely electrolysis, electrophoresis, and electrolytic deposition, electroosmosis. After such treatment, the surface of the mill finish aluminum sheet appears smooth, and the corrosion resistance will be enhanced.
Electrostatic spraying uses the principle of high-voltage electrostatic corona electric field. The metal guide cup on the nozzle is connected with high-voltage negative electricity, and the coated workpiece is grounded to form a positive electrode. A strong electrostatic field is formed between the spray and the workpiece. When the carrier gas (compressed air) sends the powder coating from the powder supply tank to the spray guide cup through the powder pipe, a dense charge is generated around it, and the powder is negatively charged. In the action of electrostatic force and compressed air, the powder is uniformly adsorbed on the workpiece. After heating, the powder is melted and solidified (or plasticized) into a uniform, continuous, flat and smooth coating film. This mill finish aluminum sheet is better than oxidation. Colored profiles.
Its own patterned mill finish aluminum sheet is very bright, but in our life, there will be interference highlights in a certain environment. The use of matte can overcome this shortcoming. Its surface is silky and silky, and it is loved by many people. like.
In the past, the traditional colors of aluminum alloy plates can no longer meet the needs of designers. In order to make the mill finish aluminum sheets better, the appearance of various colors can make the colors of the mill finish aluminum sheets more perfect. The most important thing is that they need to be polished and oxidized. After that, the effect is the best.
This uses advanced science and technology. The quality of the mill finish aluminum sheet after this treatment, although the cost is higher, but you get what you pay for. What is important is that this mill finish aluminum sheet can also be subjected to a series of color registration.