稀土快速渗碳工艺  

Fast Carburizing with RE Catalysis

作　　者：金荣植 刘志儒[2] 

机构地区：[1]哈尔滨拖拉机配件厂,黑龙江哈尔滨150080 [2]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001

出　　处：《金属热处理》2004年第4期44-47,共4页Heat Treatment of Metals

摘　　要：采用改进型稀土催渗剂进行渗碳后 ,与常规渗碳工艺相比提高渗碳速度 2 0 % ;若采用稀土快速渗碳工艺并将Ⅱ区碳势提高到 1 3%时 ,与常规工艺相比提高渗碳速度 31 % ,同时金相组织得到了明显改善。通过一年生产应用证明这是一种操作简单、稳定可靠的工艺 。The carburization rate can be increased 20% compared with the conventional carburization process by using RE catalyzed carburizing.When the carbon potential in the region Ⅱ was increased to 1.3%,and adding RE,the carburization rate can be increased 31% compared with the conventional process and the microstructure can be improved remarkably.This process has been used in production more than a year,and it is confirmed that this is a simply operational,stable and reliable technology.It shows remarkable economical benefits.

关 键 词：稀土 高碳势 快速渗碳 连续式气体渗碳炉 

分 类 号：TG156.8[金属学及工艺—热处理]