我国长期以来都是采用按模锻锤的吨位来确定锤锻模硬度,即吨位法。我厂使用过国内外多种材质的模具钢。经过几十年的生产实践,觉得这种吨位法有不尽合理之处,应作适当的修改,以延长锤锻模寿命。吨位法的理论根据是,锤的吨位愈大,其打击时的冲击力愈大,若硬度高了,锤锻模易于破裂。实际并不尽然,锤锻模的破裂原因,一般为材质差、预热温度低且不均匀所致,尤 For a long time, China used the tonnage of forging hammers to determine the hardness of the hammer forging dies, that is, the tonnage method. I have used a variety of materials plant die steel at home and abroad. After decades of production practice, I think this tonnage method is not reasonable and should be appropriately modified to extend the life of hammer die. The theoretical basis of the tonnage method is that the larger the tonnage of the hammer, the greater the impact on the hammer. If the hardness is high, the hammer forging dies easily to rupture. The actual is not always the case, hammer rupture causes, generally poor material, low preheating temperature and uneven, especially