Many different industries use galvanized steel primarily because it provides the industry with a wide range of advantages, including:
1. Low processing cost: The cost of hot-dip galvanizing anti-rust treatment is lower than the cost of other paint coatings;
2. Durable: Whether in suburban environments, urban areas or coastal areas, the standard hot-dip galvanized anti-rust layer has a very good anti-corrosion effect;
3. Good stability: The galvanized layer and the steel are metallurgically integrated and become part of the steel surface, so the durability of the coating is relatively reliable;
4. The coating has strong ductility: the galvanized layer forms a special metallurgical structure that can withstand mechanical damage during transportation and use;
5. Overall maintenance: every part of the plated parts can be plated with zinc, and even in recesses, bevels and hidden places can be fully protected;
Anti-rust properties of galvanized layer. The iron in steel is very susceptible to rust, but the addition of zinc acts as a protective buffer between the steel and any moisture or oxygen. Galvanized steel is highly protective, including sharp corners and grooves that other coatings cannot protect, making it less susceptible to damage.
Hot dip galvanizing process for galvanized steel:
hot dip galvanized
The primary method of galvanizing is hot dip galvanizing. The process is very similar to what the name implies! In this method, steel or iron is immersed in a molten zinc bath maintained at around 860°F (460 °C). This molten pool begins to form a metallurgical bond between the zinc and the receiving metal. After the metal is removed from the plating bath and exposed to the atmosphere, it reacts and pure zinc mixes with oxygen to form zinc oxide. Zinc oxide further reacts with carbon dioxide and forms zinc carbonate, which forms the final protective coating on the material. The tell-tale sign of a hot-dip galvanized material is the presence of crystal-like patterns on the surface, sometimes called "sequins."
