快速压力渗碳工艺及其机理分析  

Rapid Carburizing Process by Increasing Furnace Pressure and its Mechanism Analysis

作　　者：刘利平[1] 李爱云 王云昌[3] 

机构地区：[1]郑州大学化工学院,河南郑州450002 [2]郑州齿轮厂,河南郑州450051 [3]河南省科学院,河南郑州450002

出　　处：《热加工工艺》2004年第6期25-26,28,共3页Hot Working Technology

摘　　要：介绍了快速压力渗碳工艺,并对其机理进行了分析。提高渗碳炉内压力,可提高气氛中的碳势,增大工件表面对活性碳原子的物理吸附速度,同时也可提高内扩散速度,从而提高此工艺的渗碳速度,缩短渗碳时间,提高生产效率。Rapid carburizing process by increasing furnace pressure is introduced and its mechanism is analysed. Carbon potential in gas atmosphere,physics absorption speed of active carbon atom on workpiece,and diffusion velocity in workpiece can being raised by increasing furnace pressure,Thus, this process can enhance the speed of carburizing, shorten the carburizing time and improve productivity.

关 键 词：快速渗碳工艺 压力 碳势 吸附 扩散系数 渗碳速度 

分 类 号：TG156.8[金属学及工艺—热处理]