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通过对板坯连铸厂的调查发现连铸过程中铸坯的展宽现象在各厂都不同程度地存在,而且通过调整工艺参数来减小铸坯展宽量的方法不可行.根据结晶器的尺寸与铸坯展宽的关系,经推导得到矫正铸坯展宽的结晶器设置公式,结合在铸机出口位置处在线测量得到的铸坯宽度,可以算出矫正铸坯展宽的结晶器参数,从而精确控制铸坯的宽度.结合马鞍山钢铁公司坯连铸机的参数给出了一个具体应用实例.
Through the investigation of the slab continuous casting plant found that the phenomenon of broadening of the slab in the continuous casting process exist to varying degrees in each plant, and by adjusting the process parameters to reduce the amount of slab broadening method is not feasible.According to the size of the mold And broadening the relationship between the slab, derived by casting straightening broadening mold setting formula, combined with the caster at the exit position measured at the slab width, you can calculate the width of the straightening cast slab mold parameters to accurately control the casting The width of billet.According to the parameters of Ma’anshan Iron and Steel Company’s billet continuous casting machine, a concrete application example is given.