在普通型高铬铸铁轧辊基础上,添加V及Nb再合金化,形成高硬度、弥散分布MC型碳化物,从而提高轧辊外层基体显微硬度,即碳化物改进型,它比普通型轧辊具有更好的耐磨性。讨论了改进型高铬铁轧辊的铸造工艺,着重介绍了成份选择及主要工艺参数的确定。 On the basis of ordinary high-chromium cast iron roll, adding V and Nb re-alloying to form a high hardness, dispersed distribution of MC type carbide, thereby increasing the hardness of the outer surface of the roll matrix, that is carbide modified type, Has better wear resistance. The casting process of the improved high chromium iron roll is discussed. The selection of the components and the determination of the main process parameters are emphatically introduced.