一、前言锤锻模的锻模材料要求具有良好的机械性能以及在高温下保持高强度,高冲击韧性,耐磨性和耐热疲劳性。传统的锤锻模材料主要是5CrNiMo,5CrMnMo,然而锤锻模工作时对工作表面(型腔部分)和燕尾面的要求应有不同的性能。但在同一化学成份的模块上实现这种要求是比较困难的。因此,寻找更适合锤上模锻用的新的模具材料是必要的。40Cr2NiMoV/30CrMnSi双金属电渣熔铸模块是近几年研制出的锻模新材料。 I. Introduction Forging die forging die material requirements have good mechanical properties and high temperature at high strength, high impact toughness, wear resistance and thermal fatigue resistance. The traditional hammer forging die material is mainly 5CrNiMo, 5CrMnMo, however, when working forging die on the working surface (cavity part) and dovetail requirements should have different properties. But in the same chemical composition module to achieve this requirement is more difficult. Therefore, it is necessary to find a new mold material that is more suitable for hammering. 40Cr2NiMoV / 30CrMnSi bimetallic electroslag casting module developed in recent years forging die new material.