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公开(公告)号：EP1395383B1
公开(公告)日：2006-12-13
申请号：EP02739027.7
申请日：2002-06-12
申请人： HÖGANÄS AB
发明人： BERGKVIST, Anders , ALLROTH, Sven , SKOGLUND, Paul
CPC分类号： C22C33/02 , B22F1/0059 , B22F3/087 , B22F3/17 , B22F2009/0828 , B22F2998/10 , C22C33/0285 , B22F9/082 , B22F3/10
摘要： The invention concerns a method of preparing products having a sintered density of above 7.3 g/cm3. This method comprises the steps of subjecting a water-atomised, stainless steel powder to HVC compaction with an uniaxial pressure movement with a ram speed of at least 2 m/s, and sintering the green body.
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公开(公告)号：EP1117499A1
公开(公告)日：2001-07-25
申请号：EP99951336.9
申请日：1999-09-17
申请人： HÖGANÄS AB
发明人： BERGKVIST, Anders
CPC分类号： B22F1/0059 , B22F2003/145 , C22C33/0285
摘要： The present invention concerns a process of preparing high density, warm compacted bodies of a stainless steel powder comprising the steps of providing a mixture of a low carbon, low oxygen stainless steel powder including 10-30 % by weight of Cr, optional alloying elements and graphite and inevitable impurities, mixing the powder with a high temperature lubricant and compacting the mixture at an elevated temperature. The invention also concerns a composition of the stainless steel powder, optional additional alloying elements and a high temperature lubricant.
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公开(公告)号：EP1513639A1
公开(公告)日：2005-03-16
申请号：EP03733739.1
申请日：2003-06-13
申请人： HÖGANÄS AB
CPC分类号： C10M161/00 , B22F2003/145 , B22F2009/0828 , B22F2998/00 , C10M141/06 , C10M2207/26 , C10M2215/08 , C10M2217/044 , C10N2240/409 , C22C33/0285 , B22F9/082
摘要： The invention concerns a composition for warm compaction comprising a water-atomised standard stainless steel powder including, in addition to iron and 10-30 % by weight of chromium, optional alloying elements and inevitable impurities, 0.8 %-2.0 % by weight of a warm compaction lubricant. The invention also concerns a process for the preparation of sintered bodies from this composition.
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4.发明公开
公开(公告)号：EP1395383A1
公开(公告)日：2004-03-10
申请号：EP02739027.7
申请日：2002-06-12
申请人： HÖGANÄS AB
发明人： BERGKVIST, Anders , ALLROTH, Sven , SKOGLUND, Paul
CPC分类号： C22C33/02 , B22F1/0059 , B22F3/087 , B22F3/17 , B22F2009/0828 , B22F2998/10 , C22C33/0285 , B22F9/082 , B22F3/10
摘要： The invention concerns a method of preparing products having a sintered density of above 7.3 g/cm3. This method comprises the steps of subjecting a water-atomised, stainless steel powder to HVC compaction with an uniaxial pressure movement with a ram speed of at least 2 m/s, and sintering the green body.
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公开(公告)号：EP1513639B1
公开(公告)日：2010-10-06
申请号：EP03733739.1
申请日：2003-06-13
申请人： HÖGANÄS AB
CPC分类号： C10M161/00 , B22F2003/145 , B22F2009/0828 , B22F2998/00 , C10M141/06 , C10M2207/26 , C10M2215/08 , C10M2217/044 , C10N2240/409 , C22C33/0285 , B22F9/082
摘要： The invention concerns a composition for warm compaction comprising a water-atomised standard stainless steel powder including, in addition to iron and 10-30 % by weight of chromium, optional alloying elements and inevitable impurities, 0.8 %-2.0 % by weight of a warm compaction lubricant. The invention also concerns a process for the preparation of sintered bodies from this composition.
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公开(公告)号：EP1117499B1
公开(公告)日：2005-06-01
申请号：EP99951336.9
申请日：1999-09-17
申请人： HÖGANÄS AB
发明人： BERGKVIST, Anders
CPC分类号： B22F1/0059 , B22F2003/145 , C22C33/0285
摘要： The present invention concerns a process of preparing high density, warm compacted bodies of a stainless steel powder comprising the steps of providing a mixture of a low carbon, low oxygen stainless steel powder including 10-30 % by weight of Cr, optional alloying elements and graphite and inevitable impurities, mixing the powder with a high temperature lubricant and compacting the mixture at an elevated temperature. The invention also concerns a composition of the stainless steel powder, optional additional alloying elements and a high temperature lubricant.
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