通过对18CrMnTi钢6yL-95榨油机榨螺等渗碳淬火热处理工艺的研究,提出了消除原工艺处理存在的连续性网状碳化物、残余奥氏体多、硬度偏低及内裂等缺陷的热处理新工艺。新工艺不仅细化了渗碳奥氏体晶粒,改善了渗层显微组织,而且获得了优异的综合机械性能,耐磨性为原工艺的7.5倍.榨螺等渗碳淬火件的使用寿命已达到40万斤的水平,为原工艺处理的4～10倍。 Through the research of 18CrMnTi steel 6yL-95 oil press quenching the carburizing quenching heat treatment process, proposed to eliminate the existence of the original process of continuous mesh carbides, residual austenite, low hardness and internal crack defects New heat treatment process. The new process not only refined the carburized austenite grains, improved the microstructure of the layer, and obtained excellent mechanical properties, wear resistance of the original process 7.5 times. Life expectancy has reached 40 kg level, the original process of 4 to 10 times.