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1.发明授权METHODS OF PREPARING HIGH DENSITY POWDER METALLURGY PARTS BY IRON BASED INFILTRATION 有权用于生产公司生产的SHARE铁基渗高密度粉末
公开(公告)号：EP1692320B1
公开(公告)日：2009-10-07
申请号：EP04813036.3
申请日：2004-12-03
CPC分类号： C22C33/0242
摘要： The present invention provides iron-based infiltration methods for manufacturing powder metallurgy components, compositions prepared from those methods, and methods of designing those infiltration methods. Iron-based infiltration methods include the steps of providing an iron-based infiltrant composed of a near eutectic liquidus composition of a first iron based alloy system and an iron-based base compact composed of a near eutectic solidus powder composition of a second iron based alloy system. The base compact is place in contact with the infiltrant and heated to a process temperature above the melting point of the infiltrant to form a liquid component of the infiltrant. Lastly, the base compact is infiltrated with the liquid component of the infiltrant. During infiltration, the liquid component of the infiltrant flows into the pores of the base compact.
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