What are the printing techniques for printing non-woven fabrics

Coat the surface of aluminum plated carbon steel with a layer of pure aluminum or aluminum silicon alloy steel plate containing 5% to 10% silicon. There are three methods for aluminum plating: hot plating, electrophoresis, and vacuum evaporation, with hot plating being the most widely used. Aluminum plated plates have good high-temperature oxidation resistance and do not change color for a long time at 450 ℃. The maximum operating temperature can reach 750 ℃. It also has good resistance to atmospheric corrosion, especially to gases such as SO2, H2S, CO2, etc. The corrosion resistance is 3-6 times that of galvanized steel plate, mainly used in automotive exhaust systems, heat-resistant appliances, beverage cans, etc.

There are two types of aluminum plated steel plates: one is called Class 1, which is mainly heat-resistant and can withstand high temperatures of around 640 ℃. This aluminum plated steel plate is a low-carbon steel plate coated with 20-25 microns thick aluminum silicon alloy (containing 6-8.5% silicon). Another type is called Class 2, mainly corrosion-resistant, with a coating thickness 2-3 times that of Class 1. Regardless of the type, the coating is formed through hot-dip coating. Therefore, a thin alloy layer is formed between the base metal and the coating of the low-carbon steel plate. Category 1 forms an aluminum iron silicon alloy layer, while Category 2 forms an aluminum iron alloy layer. Compared to Class 1, Class 2 has a lower melting point, thicker coating, and poorer weldability.

Aluminum plated plate is a combination of iron and aluminum, which are two widely used metals in our daily lives. This type of steel plate can fully utilize the characteristics of both metals to form a steel plate with special properties. This type of steel plate is increasingly favored by people due to its unique properties such as good corrosion resistance, heat resistance, and thermal radiation. Aluminum plated plates are used in environments with thermal radiation, acidity, condensation, and atmospheric corrosion, and have good corrosion resistance. In rural, industrial cities, and marine areas, the service life of outdoor aluminum plated steel plate components is 2 to 5 times that of aluminum plated steel plate components, making them particularly suitable for resisting SO2 and H2S corrosion.

Thermal radiation reflectivity is another characteristic of aluminum plating for controlling, blocking, and suppressing thermal radiation. In a short period of time, its performance is comparable to pure aluminum and superior to galvanized steel plates. According to tests, after 4 years of outdoor use in suburban areas, the thermal radiation reflection ability of aluminum plated panels decreases to only 5%, similar to a blackbody that absorbs all radiation heat, while the reflection ability of aluminum plated panels remains at 55%.