新型热锻模具钢4Cr2NiMoV的淬回火工艺的选择及应用  

INVESTIGATION AND APPLICATION OF HEAT TREATMENT TECHNIQUES FOR A NEW TYPE OF HOT-WORKING DIE STEEL 4Cr2NiMoV

作　　者：李香芝[1] 李国彬[1] 凌超[1] 谷南驹[1] 

机构地区：[1]河北工业大学

出　　处：《钢铁》1996年第2期43-48,53,共7页Iron and Steel

摘　　要：对新型热锻模具４Ｃｒ２ＮｉＭｏＶ钢热处理工艺进行了较系统的研究。结果表明，该钢具有较高的强韧性、良好的淬透性、回火稳定性和热疲劳特性。与３０ＣｒＭｎＳｉ钢电渣重熔铸成双金属热锻模并经９１０℃淬火、５８０℃回火代替５ＣｒＭｎＭｏ整体模块，可使模具寿命提高４７％～８０％。The heat treatment technique of a new type of hot-working die steel 4Cr2NIMoV was systematically investigated. Experimental results have shown that,4Cr2NIMoV steel has higher strength and toughness,better quenching degree and tempering steadiness,as well as better thermal fatigue properties. Mean while,4Cr2NiMoV and 30CrMnSi steels were casted into a bimetal die of electroslag remelting,then quenched at 910℃and tempered at 580℃.The lifetime of the die is longer by 47%～80% than that of 5CrMnMo die.

关 键 词：热锻模具钢 热处理 模具钢 淬火 回火 

分 类 号：TG161.3[金属学及工艺—热处理] TG161.5[金属学及工艺—金属学]