Design principles and main features of the copper mould tube1. Design principlesThe shape of the inner cavity of the copper mould tube of the high-efficiency bi
Design principles and main features of the copper mould tube
1. Design principles
The shape of the inner cavity of the copper mould tube of the high-efficiency billet continuous caster is designed according to the solidification characteristics of the continuous cast billet. Two aspects are mainly considered:
1) one is near the meniscus, due to the high heat flux density and heat concentration, the thermal deformation of the copper mould tube.
2) The second is the shrinkage of the cast slab during solidification. The design principle is that the shape of the inner cavity of the copper mould tube is consistent with the shrinkage law of the solidified blank shell to reduce the thermal resistance of the air gap.
2 The main characteristics of the material
The material requirements are good thermal conductivity, high recrystallization temperature, thermal fatigue resistance, high strength, good wear resistance and long service life. The main feature is the best overall performance of the above-mentioned properties of the copper tube material.
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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