The correct selection of colored aluminum coils should consider the natural environment, application environment, design life, and structural characteristics of the building, in order to choose the steel type, specification, coating, and coating that match it.
Architects, engineering owners, and processors consider the safety performance (impact resistance, seismic resistance, fire resistance, wind pressure resistance, and snow resistance), residential performance (waterproof, sound insulation, and insulation), durability (pollution resistance, durability, and appearance persistence), and economy (low cost, easy processing, easy maintenance, and easy replacement) of buildings. For color aluminum coil manufacturers, these properties should be converted into color aluminum coil performance and guaranteed. The performance requirements for colored aluminum coils mainly include mechanical properties (tensile strength, yield strength, elongation), coating performance (coating type, coating thickness, and coating adhesion), and coating performance (coating type, color, gloss, durability, processability, etc.).
Among them, wind resistance, impact resistance, snow resistance, earthquake resistance, etc. are all related to the mechanical properties of the data, and of course, they are also related to the waveform of the colored profiled steel plate, the thickness, span, and purlin distance of the steel plate. If a suitable colored aluminum coil is selected and matched with a suitable profiled steel plate design, it can not only meet the safety factor of the building but also reduce the engineering cost. The durability, processing performance, and appearance persistence of the data are largely determined by the durability of the coating and coating.
The surface of the colored aluminum coil has a layer of coating, which plays an important role in "anti-corrosion". Let's talk about how this anti-corrosion is organized.
(1) Brush coating
Brushing can use various coatings, as long as it is not a poor leveling coating. This step mainly aims to allow the coating to penetrate into the fine pores on the metal surface, which can enhance the metal adhesion.
(2) Scraping coating
In this step, it is required to use a high liquid purity and viscosity coating to address common defects such as cracking, peeling, and rolling.
(3) Dip coating
Dip coating is a traditional coating method that can easily cause air pollution. It is important to remember not to use volatile coatings.
(4) Drench coating
Spray coating is the process of applying paint to the surface of the coating. Although the operation is simple and the production efficiency is high, the consumption of spray coating is higher than that of dip coating, which can cause safety and dyeing problems. It is important to pay attention to this.
(5) Spraying
Spraying has the advantages of uniform coating thickness, smooth appearance, and high production efficiency, as well as significant air pollution. The surface of the colored aluminum coil has a layer of coating, which plays an important role in "anti-corrosion".