Creating Galvanized Steel Grating

Galvanization is most commonly achieved through a process known as hot-dip galvanizing. Essentially, this involves bathing iron or steel grates or grate components in molten zinc. Zinc is kept liquefied at temperatures near 860 degrees F. The metal articles, first cleaned with a light acid solution, are either dipped or fed into the zinc bath which forms a metallurgical bond with the substrate materials.

When exposed to oxygen and carbon dioxide in the atmosphere, the zinc is cured and forms a layer of zinc carbonate that further protects the bars, mesh and sheets of iron, aluminum or steel grates. While traditional hot-dipping is still widely used, two additional techniques are growing in use and popularity. Electro-galvanizing passes an electric current through the zinc compound in order to create a thinner and more tightly bonded coating. The newest development is the environmentally friendly thermal diffusion galvanizing which eliminates the hazardous caustic and acid baths used in traditional methods.

Rather than a molten bath, zinc powder is applied to grate components which are then sealed in a drum and processed through a rotary oven. Each technique produces a spangle, either uniform or large grain, on the finished grate. Spangle is the appearance of a crystalline structure that gives the formerly shiny metals a dull gray appearance.

Since its establishment in 2008, GNEE STEEL has always been customer-oriented, focusing on the production and sales of steel grating products, constantly improving its product system and enhancing its service level.