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In the production process of industrial aluminum profiles, there is a process called oxidation treatment. Do you know why aluminum profiles need to be oxidized? The purpose of surface treatment for aluminum profiles is to solve the problems of providing corrosion resistance and aesthetic appeal for the aluminum profiles. Before surface treatment of aluminum profiles, the aluminum material needs to be polished. Polishing can be done in three ways: chemical polishing, electro-polishing, and mechanical polishing. First, mechanical polishing is carried out, followed by chemical polishing and electro-polishing, which can achieve a smooth surface effect on the aluminum profile. After surface oxidation, it maintains smoothness and luster. 

The oxide film obtained through hard anodizing is 50% absorbed into the interior of the aluminum alloy and 50% adhered to its surface. Therefore, after hard anodizing, the external dimensions of the product increase while the internal holes decrease, whereas for ordinary anodizing, the external dimensions decrease while the internal holes increase. The color of hard anodizing is usually black or the natural color of the oxide film, which is determined by the composition of the aluminum alloy material. For the same type of aluminum profiles, the colors of the oxide films produced by different manufacturers may vary. Even for the same type of material from the same aluminum alloy manufacturer, the colors of the oxide films may also differ. The internal components of the products are generally coated with the natural color of the oxide film. 

Carbon film resistors (carbon film resistors) were commonly used resistors in the early days. They were made by spraying a layer of carbon film onto a ceramic rod using vacuum spraying technology, and then processing the outer layer of the carbon film into a spiral shape. The resistance value was determined by the number of spirals. The more spirals, the higher the resistance value. Finally, the outer layer was sealed and protected with epoxy resin. Because the resistance error was higher than that of metal film resistors, but they were cheaper. Carbon film resistors are still widely used in various products and are currently the basic components of electronic, electrical, equipment, and information products. 

The following are reference examples of typical metal surface treatments. As a product designer, it is necessary to understand the limitations of different processes, so I will first mention the following important points. 

In recent years, with the expansion of the application scope of aluminum profiles and the development of the rail transportation industry, the consumption scale of industrial aluminum profiles has also maintained a rapid growth. The supply and demand relationship of industrial aluminum profiles has been relatively balanced. However, at present, the proportion of industrial aluminum profiles in China's aluminum profile consumption is still lower compared to developed countries. There is still considerable potential for the growth of the consumption of industrial aluminum profiles in China. 

Industrial aluminum profile powder coating is actually a type of powder coating. That is to say, using powder equipment (electrostatic spraying machine), the powder coating is sprayed onto the surface of industrial aluminum profiles or workpieces. Then, under the effect of static electricity, the powder will evenly adhere to the surface of industrial aluminum profiles, forming a powder coating. After being subjected to high-temperature baking, leveling, and fixation, it becomes coatings with different effects. This process is called industrial aluminum profile powder coating. 

With the rapid development of modern science and technology, industrial aluminum profiles have been applied in many fields, such as residential communities and office building renovations. The manufacturing process of aluminum profiles has relatively high requirements, mainly due to the advantages of their product performance. So, what should be noted during the processing of aluminum profiles? How to handle the problems encountered in aluminum profile processing? 
Generally speaking, in the processing of industrial aluminum profiles, there are many things that require special attention. First of all, when processing aluminum (Al) profiles, due to their light weight, easy processing, light weight and flexibility, the stamping is prone to breakage. Some aluminum profiles require subsequent surface processing. At this time, you must do the wire drawing and anodizing. At the same time, during the processing of aluminum profiles, attention must be paid to product quality. During the manufacturing process, efforts should be made to do well to avoid any top falling or scratching situations. 

Aluminum profile coating is an effective method for us to maintain the quality of aluminum and enhance its decorative function. The quality of decoration directly affects the price and sales of our products. Therefore, we should strictly control the coating quality in order to achieve better output of aluminum profiles. What aspects do aluminum profile coatings get influenced by?