來源：http://www.skyequiltedcards.com 發布時間：2022-10-06 11:01:32
Aluminum coil is a very common aluminum product, which can be seen in all walks of life. What are the methods for coating this product? Let's share with you the following aluminum coil manufacturers.
1. Dip coating
Dipping is a traditional coating method. In this method, the coated material is immersed in the bath containing paint, and then taken out immediately to let the excess paint drop back into the bath, or the excess paint is thrown off mechanically. This method has large solvent loss and is easy to cause air pollution. It is not suitable for volatile coatings, and the film thickness is uniform. It is generally used for equipment or workpieces with complex structures.
Brushing is an early, simple and traditional manual painting method, which is easy and flexible to operate. It can be used to paint objects of any shape. It is applicable to all kinds of coatings except for those with fast drying and poor leveling. The brushing method can make the coating penetrate the pores on the metal surface, and strengthen the adhesion of the coating film to the metal. The disadvantages are high labor intensity, low work efficiency and poor coating appearance.
Spraying is to use the negative pressure generated by the compressed air at the nozzle of the spray gun to spray the coating in the coating container from the coating nozzle, and quickly enter the high-speed compressed air flow to shoot the coated object with aerosol particles, so that it can be evenly coated on the aluminum surface. It has the advantages of uniform film thickness, flat appearance, and high production efficiency. However, the aluminum coil manufacturer should remind you that the material loss of this method is far greater than that of brushing and spraying, and the use of solvent based coatings will cause environmental pollution, so you should be cautious.
Scraping is a method of coating with scraper, which is applicable to the coating of liquid paint with high viscosity and high solid content. The common defects of the coating film in scraping operation are cracking, falling off, roll over, etc. The thickness of the coating film is also difficult to be uniform.
Spraying is a coating process that sprays the coating from the nozzle to the surface of the object to be coated, and the coating completely covers the surface of the object to be coated by flowing from top to bottom. The equipment used in this method is simple, it is relatively easy to realize mechanized production, and it is easy to operate and has high production efficiency. However, there are defects such as uneven film, incomplete coverage, uniform film thickness, etc. Moreover, the solvent consumption of spray coating is higher than that of dip coating, and there are also some safety and pollution problems.
The above is the construction method of aluminum coil coating summarized by the manufacturer for you. I hope it can be helpful to you. Our company is a professional manufacturer of aluminum products, with excellent quality and low price. You can visit our website http://www.skyequiltedcards.com Consult!