锻造余热淬火是将另件高温塑性成型与热处理工序连在一起的复合工艺。在保证零件质量的前提下,可节约能源和缩短工序,并可提高材料的性能。这一工艺已成功地应用于柴油机连杆、连轴节等须调质的机械零部件,齿轮方面尚少见报导。S—195柴油机齿轮用45钢制造,要求调质处理(硬度 HRC22～28),现普遍采用水淬—高温回火的普遍调质工艺。我们进 Forging residual heat quenching is the other piece of high temperature plastic forming and heat treatment process together with the composite process. In ensuring the quality of parts under the premise of saving energy and shorten the process, and can improve the performance of materials. This process has been successfully applied to diesel engine connecting rods, couplings and other mechanical parts that need to be tempered. Gear is still rarely reported. S-195 diesel engine gear made of 45 steel, requiring quenching (hardness HRC22 ~ 28), are generally used water quenching - tempering the general tempering process. We enter