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连铸过程中,合适的保护渣消耗量可以控制结晶器与铸坯之间润滑和传热,保证铸坯质量。通过建立结晶器同步振动模型,在相同拉速下分别改变结晶器非正弦振动的波形偏斜率与振动频率,得出不同振动条件下的保护渣消耗量。结果表明:当波形偏斜率增大,保护渣消耗量增大;振动频率增大,保护渣消耗量减少。波形偏斜率α由0.1增长到0.4时,保护渣消耗量从0.402 kg/m2增大到0.501 kg/m2;振动频率从142次/min增大到250次/min时,保护渣消耗量从0.402 kg/m2下降到0.228 kg/m2。当α=0.4,f=142次/min时,保护渣消耗量最大。
In the process of continuous casting, proper consumption of mold flux can control the lubrication and heat transfer between the mold and slab to ensure the slab quality. By setting up the mold synchronous vibration model, the waveform skew and vibration frequency of the non-sinusoidal vibration of the mold were changed respectively under the same pulling speed, and the consumption of mold flux under different vibration conditions was obtained. The results show that when the waveform skew rate increases, the consumption of mold fluxes increases; the vibration frequency increases and the consumption of mold fluxes decreases. When the deflection α increases from 0.1 to 0.4, the consumption of mold flux increases from 0.402 kg / m2 to 0.501 kg / m2. When the vibration frequency increases from 142 to 250 cycles / min, the consumption of mold flux increases from 0.402 kg / m2 to 0.228 kg / m2. When α = 0.4, f = 142 times / min, the consumption of mold flux is the largest.