The Effects of Continuous Casting Molten Steel TemperatureHarm of too high temperature: when molten steel out of cooper mold, the billet shell is thin and easy
The Effects of Continuous Casting Molten Steel Temperature
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 easily lead to out of control of casting flow and reduce the casting safety; The addition of non-metallic inclusions affects the internal quality of slab; The columnar crystal of billet is developed; The central segregation is aggravated, which is easy to produce centerline cracks.
Harm of too low molten steel temperature: nozzle blockage and casting interruption are easy to occur; Blister, slag inclusion, crack and other defects are easy to occur on the surface of continuous casting; Non metallic inclusions are not easy to float up, which affects the internal quality of slab.
Temperature control of molten steel in ladle: strictly control the tapping temperature according to the smelting steel grade to make it change in a narrow range; Secondly, the temperature drop from tapping, ladle, ladle transportation and the whole process of entering the tundish should be greatly reduced.
shengmiao
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
shengmiao
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
shengmiao
In continuous casting, low corrosion resistance often occurs, which directly leads to uneven composition and will eventually affect the smelting quality. In or