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分析了中空钢锭凝固过程中压缩空气与中心芯子间的对流传热，通过确定二者间的传热系数及压缩空气的温升，结合普通钢锭的数值模拟方法，建立了中空钢锭凝固过程的数值模拟方法，为实现中空钢锭铸造工艺参数的优化设计及中空钢锭的国产化奠定了基础。
The convection heat transfer between compressed air and central core in the process of hollow ingot solidification was analyzed. By determining the heat transfer coefficient and the temperature rise of compressed air, the numerical simulation method of common ingot was used to establish the process of hollow ingot solidification The numerical simulation method lays the foundation for the optimization design of hollow ingot casting process parameters and the localization of hollow ingot.