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通过建立保护渣道压力计算模型,研究了保护渣道压力随结晶器振动的周期性变化规律以及保护渣道形状参数、连铸工艺参数和保护渣黏度对渣道压力的影响.结果表明:结晶器达到最大上振速度和最大下振速度时,渣道压力分别达到最大负压和最大正压;保护渣道形状参数对渣道压力有重要影响,渣道入口宽度和出口宽度增加,渣道正负压力都明显下降,而渣道长度增加,渣道正负压力最大值都增加;拉坯速度与结晶器振动速度都影响渣道压力,拉坯速度增加,渣道最大负压增加,而最大正压减小;结晶器振动速度和保护渣黏度增加,使渣道最大正负压力都增加.
Through the establishment of the pressure calculation model of the protective slag lane, the periodic variation of the pressure of the protective slag lane with the mold vibration and the influence of the shape parameters of the protective lanes, the continuous casting process parameters and the viscosity of the protective slag on the pressure of the slag lane were studied. When the maximum vibration velocity and the maximum vibration velocity are reached, the pressure in the slag channel reaches the maximum negative pressure and the maximum positive pressure, respectively; the shape parameters of the protective slag channel have an important influence on the pressure of the slag channel, the entrance width and outlet width of the slag channel increase, Both the positive and negative pressure drop obviously, while the length of slag lanes increases, the maximum positive and negative pressure of slag lanes increase. Both the casting speed and the mold vibration speed affect the slag pressure, and the casting speed increases, while the maximum negative pressure of slag lanes increases The maximum positive pressure decreases; mold vibration speed and the increase of mold powder viscosity, so that the maximum positive and negative pressure of slag increases.