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公开(公告)号：EP1616464A1
公开(公告)日：2006-01-18
申请号：EP04728515.0
申请日：2004-04-21
申请人： Kjellberg Finsterwalde Elektroden & Maschinen GmbH , Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： KRINK, Volker , LAURISCH, Frank , LOTZE, Gerd , WEISSGÄRBER, Thomas , KÜMMEL, Kerstin , MÖHLER, Wolfram
IPC分类号： H05H1/34
CPC分类号： H05H1/34 , H05H2001/3457
摘要： The invention relates to nozzles for plasma torches that are essentially made of a metal or of a metal alloy. The nozzles are subjected to an increased amount of wearing, in particular, when operating plasma torches of this type during cutting processes involving the use of oxygen whereby requiring the nozzles to be frequently exchanged. The aim of the invention is thus to lengthen the serviceable life of these nozzles. To this end, the invention provides that wear-resistant microparticles of a hard material, preferably of a ceramic hard material, are embedded in the metal or the metal alloy at least in areas. The nozzles can be advantageously produced by extrusion.
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公开(公告)号：EP1836433B1
公开(公告)日：2009-08-26
申请号：EP06707681.0
申请日：2006-01-09
发明人： ADLER, Jörg , STANDKE, Gisela , KOPEJZNY, Daniela , STEPHANI, Günter , KÜMMEL, Kerstin , BECKERT, Wieland
IPC分类号： F16L59/08
CPC分类号： F27D1/0006 , B22F5/006 , B22F2998/00 , F16L59/08 , F27D1/0033 , Y10T428/24997 , B22F3/1125 , B22F3/1137
摘要： The invention relates to the field of mechanical engineering and concerns a thermal radiation shield for vacuum and protective atmosphere furnaces, which is used for effecting a thermal radiation shielding that is a good at possible. The aim of the invention consists in providing thermal radiation protective shields with a reduced weight while having an identical or lower effective emissivity. To this end, the invention provides a thermal radiation protective shield for vacuum and protective atmosphere furnaces that is comprised at least of a porous ceramic and/or metallic material, which comprises, on a surface in the direction of the heat source, high thermal radiation-reflecting properties.
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公开(公告)号：EP1616464B1
公开(公告)日：2009-07-22
申请号：EP04728515.0
申请日：2004-04-21
申请人： Kjellberg Finsterwalde Plasma und Maschinen GmbH , Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： KRINK, Volker , LAURISCH, Frank , LOTZE, Gerd , WEISSGÄRBER, Thomas , KÜMMEL, Kerstin , MÖHLER, Wolfram
IPC分类号： H05H1/34
CPC分类号： H05H1/34 , H05H2001/3457
摘要： The invention relates to nozzles for plasma torches that are essentially made of a metal or of a metal alloy. The nozzles are subjected to an increased amount of wearing, in particular, when operating plasma torches of this type during cutting processes involving the use of oxygen whereby requiring the nozzles to be frequently exchanged. The aim of the invention is thus to lengthen the serviceable life of these nozzles. To this end, the invention provides that wear-resistant microparticles of a hard material, preferably of a ceramic hard material, are embedded in the metal or the metal alloy at least in areas. The nozzles can be advantageously produced by extrusion.
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公开(公告)号：EP1836433A2
公开(公告)日：2007-09-26
申请号：EP06707681.0
申请日：2006-01-09
发明人： ADLER, Jörg , STANDKE, Gisela , KOPEJZNY, Daniela , STEPHANI, Günter , KÜMMEL, Kerstin , BECKERT, Wieland
IPC分类号： F16L59/08
CPC分类号： F27D1/0006 , B22F5/006 , B22F2998/00 , F16L59/08 , F27D1/0033 , Y10T428/24997 , B22F3/1125 , B22F3/1137
摘要： The invention relates to the field of mechanical engineering and concerns a thermal radiation shield for vacuum and protective atmosphere furnaces, which is used for effecting a thermal radiation shielding that is a good at possible. The aim of the invention consists in providing thermal radiation protective shields with a reduced weight while having an identical or lower effective emissivity. To this end, the invention provides a thermal radiation protective shield for vacuum and protective atmosphere furnaces that is comprised at least of a porous ceramic and/or metallic material, which comprises, on a surface in the direction of the heat source, high thermal radiation-reflecting properties.
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