As we all know, with the rise of China's industrial development, the metal surface treatment technology on the market can be said to be a hundred, let alone divided into categories. There are many popular metal surface treatment technologies, such as electroplating, spraying, polishing, anodizing, etc. Take oxidation technology as an example, it is currently the most widely used and most successful.
Dongguan Chicco will tell you: Car radiators are generally oxidized. If it is black, the heat radiation is faster than other colors.
Oxidation treatment process: degreasing (chemical degreasing, electric degreasing), rust removal, oxidation, protective film (grease or special protective agent), and there should be a cleaning process between the processes.
No electricity is needed during the oxidation process (but heating is required, generally around 150 degrees).
The film layer obtained after oxidation is black (related to the material composition). It has slight corrosion resistance, but it can improve the extinction ability.
The effect of material losing electrons is called oxidation; on the contrary, the effect of gaining electrons is called reduction. In a narrow sense, oxidation reaction refers to the combination of substances and oxidation; reduction reaction refers to the effect of substances losing oxygen. The oxidation value increases during oxidation; the oxidation value decreases during reduction. Both oxidation and reduction refer to reactants (molecules, ions or atoms).
Many seemingly common changes in life involve redox.
Such as: iron nails rust, wine making, flour fermentation to make steamed bread, etc.
It is even more common in industrial production that the reaction of any substance is based on these two types.
Some substances are highly oxidizing and are commonly used as oxidants in production and life, such as fluorine, chlorine, and iodine, as well as oxygen and ozone in our air.
It occupies a very important position in the production of the chemical industry and is used in the preparation of many compounds:
1. Iron sulfide is oxidized to sulfur dioxide, and then sulfur dioxide is oxidized to sulfur trioxide to prepare sulfuric acid.
2. Nitrogen is oxidized to nitric oxide (using platinum as a catalyst), and then nitric oxide is oxidized to nitrogen dioxide to prepare nitric acid.
3. Phosphorus is oxidized to phosphorus pentoxide to prepare phosphoric acid.
4. Oxidation of ethylene produces ethylene oxide.
5. Methanol oxidation is deprived of hydrogen to generate formaldehyde.
Dongguan Zhigao Industrial Co., Ltd. specializes in the production of aluminum automotive power amplifier radiators, aluminum LED radiators, aluminum LED sunflower radiators, aluminum electronic radiators and other products.