Weather-resistant steel plates are made by adding trace elements such as phosphorus, nickel, and copper to ordinary steel plates during the smelting process. A dense, highly protective film is formed on the surface of the steel, which hinders the further spread of rust, thus protecting the underlying materials to slow down corrosion. Weathering steel panels have a bare exterior and resist corrosion without the use of additional coatings. It is environmentally friendly because it does not pollute the surrounding environment.
The production process of weathering steel plates: Weathering steel is generally smelted in a furnace, including converter, electric furnace microalloying, argon blowing and refining, low superheat continuous casting, rare earth wire feeding, controlled rolling and controlled cooling. During the smelting, scrap steel is added to the furnace together with the charge and smelted according to conventional methods. After the steel is discharged, deoxidizer and alloy are added. After blowing argon into the molten steel, the steel is cast immediately, and the molten steel adjusted by the argon gas temperature is cast through a continuous casting machine. plate. Due to the addition of rare earth elements to the steel, the weathered steel is purified and the inclusion content is greatly reduced.
China has been using weather-resistant steel plates since the 1960s. Although it has been used for a long time, the research and development and production of weather-resistant steel plates in China have not fallen behind. With the rapid development of the national economy, the application of weather-resistant steel plates has been brought together by relevant domestic departments. Paying attention to the development and upgrading of weather-resistant steel plates is of high practical significance and has an important impact on the structural upgrading of the steel industry.