用3Cr3Mo3W2V钢制作钢管热冲孔凸模的试验  

The Experiment of Manufacturing the Hot Piercing Punch for Steel Pipes with3Cr3Mo3W2V Steel

作　　者：何鹤林[1] 董勇[1] 

机构地区：[1]湖南大学衡阳分校,湖南衡阳421101

出　　处：《模具工业》2004年第1期56-58,共3页Die & Mould Industry

摘　　要：用3Cr3Mo3W2V钢代替3Cr2W8V钢制作钢管热冲孔凸模,凸模采用双重淬火和表面硫氮共渗处理工艺,冲孔时将凸模冷却方式由强制水冷却改用PF冷却介质冷却,可使凸模寿命提高2～3倍。The hot piercing punch for making steel pipes was manufactured with3Cr3Mo3W2V,to substiˉtute3Cr2W8V steel.The processes of Double quenching and surface sulphurizing tufftride processing were adopted for the punch,and PE cooling medium instead of tap water was used for cooling the punch while piercing.Thus the service life of the punch has extended by2-3times.

关 键 词：3Cr3Mo3W2V钢 凸模 双重淬火 硫氮共渗 

分 类 号：TG162.41[金属学及工艺—热处理]