Continuous Casting Mould-copper tubeIn the continuous casting process, liquid steel flows from a ladle, through a tundish into the mould. The mould is regarded
Continuous Casting Mould-copper tube
In the continuous casting process, liquid steel flows from a ladle, through a tundish into the mould. The mould is regarded as the heart of the continuous casting process and plays a very important role in the efficiency of the process and the strand quality. It is in the mould that the final cast shape and the strand surface quality are produced. If the conditions are not correct in the mould, then the strand quality cannot be corrected later. Once in the mould, the liquid steel freezes against the walls of the water-cooled copper mould to form a solid shell. Mould is basically an open-ended box structure containing a water-cooled inner lining fabricated from a high purity copper alloy. The box can come in many shapes and sizes in order to cast different semis such as blooms, billets, round beam blanks, slabs, and thin slabs.
Once the liquid steel refining process is completed during steelmaking, the liquid steel contained in the ladle is normally sent to a continuous casting machine. The steel is poured from the ladle to a tundish and then from the tundish into a water-cooled copper mould which induces the formation of a thin, solidified steel shell . Flow between vessels is driven by gravity. Between the tundish and the mould, this driving force is proportional to the head of liquid steel between the top surface of the liquid steel in the tundish and the liquid steel level in the mould. Control of the flow rate into the mould is achieved by metering nozzles, stopper rods or slide gates. The metal level in the mould, which is known as ‘meniscus’, is very important for the surface quality of the cast product. Accurately controlled and consistent conditions are needed for all parameters in the mould for the surface quality of the cast product.
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Harm of too high temperature: when molten steel out of cooper mold, the billet shell is thin and easy to break out; The accelerated erosion of refractory can ea
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1. The barrier function (mainly completed by the liquid slag layer) isolates the contact between air and molten steel, blocks the secondary oxidation of molten
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In continuous casting, low corrosion resistance often occurs, which directly leads to uneven composition and will eventually affect the smelting quality. In or