What are the raw materials and production processes of steel?
Steel (Steel): material of various shapes, sizes, and properties required by pressure processing for ingots, billets, or steels.
The hot metal from the torpedo car can be poured into the converter as the main burden after being treated by desulphurization and slag disposal, etc., with the addition of scrap steel below 10%. Then, burning into the converter oxygen blowing, excess carbon in molten iron by oxidation and release large amounts of heat, when the probe is measured to reach a predetermined low carbon content, namely stop blowing and tapping. In general, the ladle needs to be deoxidized and adjusted to operate the ingredients. Then, the carbonized rice hull is cast on the surface of the liquid steel to prevent the molten steel from being oxidized and sent to the continuous casting or die casting work area. For high requirement steel, increasing bottom blowing argon, RH vacuum treatment, spraying powder treatment (spraying SI - CA powder and denatured lime) can effectively reduce gas and inclusion in steel, and further reduce carbon and reduce sulfur. After these measures are refined, the ingredients can be adjusted to meet the demand of high quality steel.
Steel is an important material for national construction and the realization of the four modernization indispensable, its wide application, wide variety, according to the different steel profile is generally divided into sections and plates, pipes and metal products four categories, in order to facilitate the organization of steel production, supply management and order management, and divided into heavy rail, light rail, large steel, and steel, small steel, steel cold-formed steel, high-quality steel, wire rod, steel plate, steel sheet, electrical silicon steel sheet, strip steel, seamless steel pipe, welded steel pipe, steel, metal products and other varieties.
