一、前言渗碳钢齿轮毛坯经高温锻造成型后，一般温度仍高达900℃以上，因此利用锻造余热进行热处理是可能的。目前锻造齿轮余热的利用研究最多的是锻造余热退火，与正火相比，节电50％以上[1～2]。齿轮锻造余热利用的经济效益非凡，在农机齿轮行业中已有部分企业应用，但锻造余 I. INTRODUCTION After the carburized steel gear blank is forged at high temperature, the general temperature is still as high as 900 ° C, so it is possible to use forging heat treatment for forging. At present, the most used forging gear heat recovery is forging residual heat annealing, compared with normalizing, saving more than 50% [1 ~ 2]. Gear forging waste heat utilization of extraordinary economic benefits, in the agricultural machinery industry has been part of the business applications, but forging more