Aluminum Veneer Comparison

Metal curtain wall applications have a history of several decades, and the three types of materials still in use include aluminum veneer, aluminum-plastic composite panel and aluminum honeycomb panel. Among these three materials, aluminum veneer and aluminum-plastic panel are the most commonly used. Aluminum veneer appeared first, and then in the late 1960s and early 1970s, aluminum-plastic composite panel was invented in Germany and quickly became popular around the world. What is the difference between aluminum-plastic panel and aluminum veneer? Here I will make a simple comparison of these two materials:
Material and cost
Aluminum veneer generally uses 2-4mm thick AA1100 pure aluminum plate or AA3003 and other high-quality aluminum alloy plates. Domestically, 2.5mm thick AA3003 aluminum alloy plates are generally used; aluminum-plastic composite panels generally use a 3-4mm three-layer structure, including two 0.5mm upper and lower layers sandwiching PVC or PE. We can see from the materials that the cost of aluminum-plastic composite panels is definitely much lower than that of aluminum veneer. The market price of 4mm thick composite panels is more than 120 yuan/square meter lower than that of 2.5mm thick aluminum veneers. For a 10,000 square meter project, the cost of using aluminum-plastic panels will be reduced by 1.2 million yuan compared to using aluminum veneers.
Processing process
There are two types of aluminum veneers in the world: fluorocarbon sprayed aluminum veneers and roller coating. There is no roller coating production line in China for the time being, so the processing process of veneers here mainly refers to fluorocarbon spraying production. Spraying production of aluminum veneers is divided into two steps: the first step is sheet metal processing. This process mainly processes the aluminum veneer into the shape and size required for construction through cutting, folding, bending, welding, grinding and other processes. The second step is spraying. Spraying is to spray paint on the processed sheet metal. There are two types of spraying, one is manual spraying and the other is machine spraying. Machine spraying is generally only suitable for regular flat plates, but this type of aluminum veneer is rarely used in actual use. Most domestic manufacturers use manual spraying. Manual spraying is a dangerous job, because the paint is highly volatile and toxic, which can easily cause chronic benzene poisoning, seriously affecting human health. One of the great advantages of manual spraying is that no matter how much or how little, the color can be selected, while the roller coating of aluminum-plastic panels must reach a certain amount before processing. The processing of aluminum-plastic panels is more complicated than that of aluminum veneers, mainly including four major processes: chemical formation, coating, compounding and trimming. Except for trimming, the other four processes are all automated production. From its processing process, it can be seen that aluminum-plastic panels have certain advantages in environmental protection and safety. In addition, due to the simplicity of the sheet metal processing process of aluminum veneers, some private workshops have also begun to get involved, which has seriously affected the stability of the market quality of aluminum veneers.