整体淬火顶杆用钢65MnV的研制

The Study of 65MnV Steel Used for Quenching Ejector Pins of Plastic Dies

根据整体淬火顶杆的制造及使用性能要求，研制了一种新型整体淬火顶杆专用钢６５ＭｎＶ，研究了该钢的物理、力学及工艺性能，并与顶杆常用钢６５Ｍｎ进行比较。结果表明：６５ＭｎＶ钢具有良好的综合力学性能、加工性能和耐磨性。同６５Ｍｎ相比，σ０．２和σｂ分别提高了２９２ＭＰａ和２０３ＭＰａ，ａｋ和耐磨性分别提高了３倍和０．３倍。６５ＭｎＶ钢是一种理想的整体淬火顶杆用钢。

Based on servicing and manufactured property demands of quenching ejector pins of plastic dies,a new quenching ejector pin steel 65MnV was studiedThe physical,mechanical and technological properties were also tested and compared with other ejector pin steel(65Mn) generally usedResults showed that 65MnV steel has better mechanical,manufactured and wear resistance propertiesCompared with 65Mn,σ02 and σb increase by 292MPa and 203MPa respectively,ak and wear resistance increase by 3 and 03 times respectively.65MnV steel is a ideal steel for quenching eject pin