How are steel plates produced?

Release time:

2024-05-31

The manufacturing process of high-grade steel plates requires strict control of each link, including raw material quality, steelmaking process, rolling processing, pickling treatment, coating treatment, etc., to ensure the quality and performance of the steel plates.

The manufacturing process of steel plates is a complex process involving multiple stages and processes. The following are the basic steps in steel plate production:

Raw material preparation. First, it is necessary to select raw materials suitable for the production of steel plates, usually ferroalloys composed of iron ore, coal, coke and other materials.
Steelmaking. Add the selected raw materials to the steelmaking furnace, add appropriate amounts of auxiliary materials such as limestone and bauxite, and melt the ferroalloy under high temperature and high pressure. The molten iron liquid is vacuum deoxidized, refined and cast into billets. This process is called steelmaking.
Casting. The molten iron after steelmaking will be poured into a casting machine for casting to form steel billets. The temperature, flow rate and molding need to be controlled during the casting process to ensure that the quality of the cast steel billets meets the standards.
Rolling. Rolling is the process of stretching and flattening the steel billet into a steel plate through a rolling mill. Steel billets can be rolled into steel plates of different thicknesses and widths by cold rolling and hot rolling. Through multiple rolling processes, steel plates with different properties can also be obtained, such as spring steel plates with good elastic mechanical properties and automotive plates with good processing performance.
Surface treatment. After hot rolling, cold rolling and other processes, the steel plate may have some irregular and uneven stains and oxides on the surface, which requires surface treatment such as rust removal and polishing. The purpose of this link is to ensure the appearance quality of the steel plate and enhance its corrosion resistance for subsequent processing and use.
In addition, the manufacturing process of high-grade steel plates requires strict control of each link, including raw material quality, steelmaking process, rolling processing, pickling treatment, coating treatment, etc., to ensure the quality and performance of the steel plate.

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