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    METHODS OF PREPARING HIGH DENSITY POWDER METALLURGY PARTS BY IRON BASED INFILTRATION
    2.
    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

    申请人： HOEGANAES CORPORATION

    发明人： SEMEL, Frederick, J. ,  Kalathur S. Narasimhan

    IPC分类号： C22C33/02 ,  B22F3/26

    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.

    POWDER METALLURGICAL COMPOSITIONS AND METHODS FOR MAKING THE SAME
    3.
    发明授权
    POWDER METALLURGICAL COMPOSITIONS AND METHODS FOR MAKING THE SAME 有权
    冶金粉末组合物及其制造方法

    公开(公告)号：EP1735121B1

    公开(公告)日：2009-05-27

    申请号：EP05745085.0

    申请日：2005-03-29

    申请人： HOEGANAES CORPORATION

    发明人： LINDSLEY, Bruce ,  KING, Patrick ,  SCHADE, Christopher, T.

    IPC分类号： B22F1/00 ,  C22C33/02

    CPC分类号： C22C33/0207 ,  B22F1/0003

    摘要： Metallurgical powder compositions of the present invention include an iron based powder combined with a master alloy powder, as a mechanical property enhancing powder. The addition of master alloy powders has been found to enhance the mechanical properties of the final, sintered, compacted parts made from metallurgical powder compositions, especially at low sintering temperatures. Metallurgical powder compositions include at least about 80 weight percent of an iron-based metallurgical powder and from about 0.10 to about 20 weight percent of a master alloy powder. Master alloy powders include iron and from about 1.0 to about 40 weight percent chromium, and from about 1.0 to about 35 weight percent silicon, based on the weight of the master alloy powder.

    METHOD OF MAKING AN IMPROVED METALLURGICAL POWDER COMPOSITIONS AND USING THE SAME
    5.
    发明授权
    METHOD OF MAKING AN IMPROVED METALLURGICAL POWDER COMPOSITIONS AND USING THE SAME 有权
    方法改进的冶金粉末组合物和同用

    公开(公告)号：EP1246949B1

    公开(公告)日：2006-02-08

    申请号：EP00967370.8

    申请日：2000-08-08

    申请人： HOEGANAES CORPORATION

    发明人： BARRON, Michael, C. ,  NARASIMHAN, Kalathur, S.

    IPC分类号： C22C1/04 ,  C22C33/02

    CPC分类号： C22C33/0207

    摘要： The present invention provides iron-based metallurgical powder compositions and a method of making and using the same. The metallurgical powder compositions of the present invention contain certain amounts of an iron-alloy powder having iron and at least one alloying additive; substantially pure iron powder; and a carbon powder, such as graphite. The metallurgical powder compositions are prepared by admixing the iron-alloy powder with the iron powder and carbon powder. The metallurgical powder compositions thus produce and when formed into metal parts have, for example, improved machinability properties.

    IMPROVED POWDER METALLURGY LUBRICANT COMPOSITIONS AND METHODS FOR USING THE SAME
    6.
    发明公开
    IMPROVED POWDER METALLURGY LUBRICANT COMPOSITIONS AND METHODS FOR USING THE SAME 有权
    改进的粉末冶金润滑脂组合物及使用方法

    公开(公告)号：EP1468585A1

    公开(公告)日：2004-10-20

    申请号：EP03707443.2

    申请日：2003-01-17

    申请人： HOEGANAES CORPORATION

    发明人： LUK, Sydney ,  POSZMIK, George

    IPC分类号： H04Q11/04

    CPC分类号： B22F1/0059 ,  B22F2003/023

    摘要： The present invention relates to improved matallurgical powder compositions that incorporate solid lubricants, methods for preparing and using the same, and methods of making compacted parts. Ejection properties, such as stripping pressure and sliding pressure, of compated parts can be improved by using the solid lubricants.The solid lubricants contain functionalized polyalkylene lubricants have the formula: R1 Q- R2 where Q is a linear or branched, polyalkylene containing from about 10 to about 200 carbon atoms, and R1 and R2 are each independently a hydroxyl group, a carboxylic acid group or a metal salt thereof, an amine group, a mono- or di- C1 to C25 alkyl substituted amine group, or an alkylene oxide group having the formula: -[(CH2)qO]nH where q is from about 1 to about 7, n is from about 1 to about 100.

    IMPROVED METHOD OF MAKING POWDER METALLURGICAL COMPOSITIONS
    8.
    发明公开
    IMPROVED METHOD OF MAKING POWDER METALLURGICAL COMPOSITIONS 审中-公开
    改进的方法制作粉体粉末冶金组合物

    公开(公告)号：EP1198317A1

    公开(公告)日：2002-04-24

    申请号：EP00913718.3

    申请日：2000-03-02

    申请人： HOEGANAES CORPORATION

    发明人： SEMEL, Frederick, J.

    IPC分类号： B22F3/02

    CPC分类号： C22C33/0207 ,  B22F1/0059

    摘要： The present invention provides a method of making metallurgical powder compositions and a method of using the metallurgical powder compositions produced. The method of the present invention includes providing a prealloy powder containing iron and one or more alloying additives that is preferably molybdenum, and admixing the iron-based prealloy powder with a copper containing powder having a weight average particle size of 60 microns or less, and a nickel containing powder having a weight average particle size of 20 microns. The mixture containing the iron-based prealloy powder, copper containing powder, and nickel containing powder is bonded in some manner to facilitate adhesion of the prealloy powder with the other alloying powders. Preferably, a binding agent is used to effect bonding. The metallurgical powder compositions thus produced have, for example, improved mechanical strength properties when formed into metal parts.