烧结钎焊粉末冶金零件研究  

CONSIDERATIONS IN SINTER-BRAZING PM COMPONENTS

作　　者：Sokolowski Peter K. Thomas F.Murphy Bruce A.Lindsley 亓家钟 

机构地区：[1]Hoeganaes公司

出　　处：《粉末冶金工业》2012年第1期9-16,共8页Powder Metallurgy Industry

摘　　要：烧结钎焊是一种已确立的粉末冶金零件连接工艺,经常用于生产汽车零部件。成功的钎焊连接主要取决于钎焊合金、连接表面与烧结气氛间的相互作用。将广泛使用的钎焊合金,Ancorbraze 72(AB 72),设计成与焊接的母体材料形成合金和能局部密封钢粉末冶金零件的表面孔隙,从而可防止因熔渗造成钎料材料的大量损失。本文将检验在不同生产工艺条件下钎焊的性状,和研究与表征焊剂与铁使钎焊合金的改性对熔化与凝固性状的影响。Sinter-brazing is an established joining process for powder metallurgy components and is often used in production of automotive applications.A successfully brazed joint relies heavily on the interactions between the braze alloy,the joining surfaces,and sintering atmosphere.The widely used braze alloy,Ancorbraze 72（AB72）,was designed to alloy with the parent material and locally seal porosity of steel PM part surfaces,thereby preventing significant braze material loss due to infiltration.Brazing performance under different processing conditions will be examined and the influences of flux and iron modifications to the braze alloy on the melting and solidification behavior are explored and characterized.

关 键 词：烧结钎焊 钎焊合金 熔渗 钎焊连接 焊剂 

分 类 号：TF124.5[冶金工程—粉末冶金]