制造高密度零件的一种新工艺.pdfVIP

学兔兔 第20卷第l期 粉 末 冶 金 工 业 Vo1．2O No．1 2010年 2月 P0WDER METAI LURGY INDUSTRY Feb．2O1O 制造高密度零件的一种新工艺 Semel F．J． (Hoeganaes Corporation。Cinnaminson，NJ 08077) 摘 要：介绍一种制造零件的粉末 台金新工艺，制造的零件性能可能相当于或好于球墨铸铁， 密度可达 7．55 g／cm。。这一工艺正处于初期研发阶段，它实质上是一种首创性技术，在很大 程度上既不是依靠高压力压制，也不是利用高温烧结。这一工艺有可能用于经济地生产大型 零件，因为所需生坯密度低于 6．8 g／era。，典型工艺温度为 H75℃。本文将详细介绍当前对该 工艺与技术依据的了解。 关键词：铁基熔渗；变形效应；扩散固化；熔渗剂；熔渗件性能 中图分类号：TF12 文献标识码：A 文章编号：l()(]6—6543(2010)0l一0001—07 A EW PR()CESS FOR MAKING HIGH DENSITY PARTS Semel F．J． (Hoeganaes Corporation，Cinnaminson。NJ 08077 USA) Abstract：A new P／M process for making parts potentially having equivalent or better proper— ties than the ductile cast irons and densities up to 7．55 g／cm is described．The process is in the early stages of development and is based on an essentially pioneer technology that does not depend significantly either on high pressure compaction or high temperature sinte ring．The process appears to offer considerable potential for economic production of large parts as the associated green densities and process temperatures that are required to imple— ment it are typically below 6．8 g／cm。and 1 1 75℃ respectively．What is currently known of the process and underlying technology is presented in detail． Key words：iron base infiltration；distortion effect；diffusional solidification；infiltrant；infiltra ted properties 料会议上，作为可行的零件制造技术报告了这一工 1 引言