Firstly, it is necessary to mine iron ore, which is the main raw material for manufacturing steel. The extracted iron ore is crushed, screened, and washed to remove impurities, and then usually processed into pellets or sintered for further processing.
Coke preparation
Coke preparation
Coke is a carbonaceous material produced by heating smokeless coal to high temperature to remove volatile matter. It is used as a reducing agent and energy material in blast furnace smelting. Coal is heated under anaerobic conditions to convert it into coke.
Blast furnace smelting
Blast furnace smelting
In a blast furnace, iron ore, coke, and flux (such as limestone) are added in proportion to the blast furnace. The heat generated by the combustion of coke increases the temperature inside the furnace, and iron oxides in iron ore are reduced to iron. The generated iron melts at high temperatures and gathers at the bottom of the furnace, while slag is also formed and floats on the surface of the molten iron.
Preliminary Refinement
Preliminary Refinement
After coming out of the blast furnace, the molten iron is usually sent to the converter for refining, removing impurities such as sulfur and phosphorus, and adjusting the carbon content. During this process, other elements such as manganese, nickel, chromium, etc. may also be added to manufacture steel of different grades and properties.
Continuous casting forming
Continuous casting forming
The initially refined steel liquid will then be sent to the continuous casting machine. During the continuous casting process, the molten steel is poured into a water-cooled mold, cooled and gradually solidified to form continuous steel billets or plates.
Subsequent processing
Subsequent processing
Finally, the steel billets or plates obtained by continuous casting will undergo a series of processes, such as hot rolling, cold rolling, annealing, coating, etc., to achieve the desired shape, size, and performance. The processed steel products can be various profiles, plates, pipes, or wires, which will then be transported to various industries for use.
Shandong Tianrun High Quality Steel Metal Materials Co., Ltd is a leading steel production and supply enterprise located in Shandong Province, China, focusing on providing high-quality steel products and solutions.
