新型Cr-Mo-V精铸热作模具钢的研制  

Development of a New Cr-Mo-V Precision Casting Hot Working Die Steel

作　　者：王树奇[1] 陈康敏[1] 崔向红[2] 洪扁[1] 

机构地区：[1]江苏大学材料科学与工程学院,镇江212013 [2]吉林大学材料科学与工程学院,长春130022

出　　处：《特殊钢》2005年第6期41-43,共3页Special Steel

基　　金：国家863基金资助项目(2002AA331180)

摘　　要：在研究热作模具钢主要成分合金化原理的基础上,用250 kg中频感应炉熔炼研究新型精铸热作模具钢,并采用MG2000高温摩擦磨损试验机对试验钢进行400 ℃磨损试验.研究结果表明,根据V/C 3.0,C余 0.1%～0.2%,Cr/(Cr+Mo) 0.68～0.85,Cr/C余＞16.6,Mo/C余＞16原则,设计的新型精铸热作模具钢(%:0.32C,3.54Cr,2.41Mo,1.02V)具有高的高温耐磨性,其400 ℃高温磨损率为H13钢(%:0.45C,5.3Cr,1.4Mo,0.83V)的30%,3Cr2W8V钢(%:0.37C,2.48Cr,7.82W,0.41V)的20%～25%.Based on research of main composition alloying principle for hot working die steel, the studied new precision casting hot working die steel was melted by a 250kg medium frequency induction furnace and the wearing test on test steels at 400℃ was carried by MG2000 high temperature friction-wear testing machine. The research results showed that according to the principle of V/C-3.0, Cres-0.1%～0.2%, Cr/（Cr＋ Mo）-0.68～0.85, Cr/Crew-〉16.6, Mo/Cres-〉16, a designed new precision casting hot working die steel - 0.32C, 3.54Cr, 2.41Mo, 1.02V had higher high-temperature wear resistance, of which the high-temperature wear rate at 400℃ was 30% that of 0.45C-5.3Cr-1.4Mo-0.83V hot working die steel H13 and was 20% ～ 25% that of 0.37C- 2.48Cr- 7.82W- 0.41V die steel 3Cr2W8V.

关 键 词：Cr-Mo-V新型热作模具钢 精铸 高温耐磨性 3CR2W8V钢 热作模具钢 Mo 摩擦磨损试验机 合金化原理 感应炉熔炼 主要成分 

分 类 号：TF762[冶金工程—钢铁冶金]