公开(公告)号：EP2589260A2

公开(公告)日：2013-05-08

申请号：EP11801363.0

申请日：2011-06-29

申请人： Graftech International Holdings Inc.

发明人： COLEMAN, Philip D. ,  MURRAY, Greg E. ,  NAPOLITANO, Marco ,  TOMASEK, Aaron ,  BOWMAN, Brian ,  KRASSOWSKI, Daniel W. ,  FRASTACI, Michael

IPC分类号： H04W92/08

CPC分类号： H05B7/07 ,  H01M4/96 ,  H05B7/06 ,  Y02E60/50 ,  Y10T29/49117 ,  Y10T29/4921 ,  Y10T156/1028

摘要： A graphite electrode exhibits oxidation resistance by modifying the outer radial surface characteristics. The outer radial surface may be modified by providing a textured portion which improves water flow while minimizing water absorbtion. Alternately, a layer of flexible graphite or plurality of particles of exfoliated graphite may be disposed on the outer radial surface of the electrode body.

公开(公告)号：EP2589260B1

公开(公告)日：2016-01-06

申请号：EP11801363.0

申请日：2011-06-29

申请人： GrafTech International Holdings Inc.

发明人： COLEMAN, Philip D. ,  MURRAY, Greg E. ,  NAPOLITANO, Marco ,  TOMASEK, Aaron ,  BOWMAN, Brian ,  KRASSOWSKI, Daniel W. ,  FRASTACI, Michael

IPC分类号： C01B31/04

CPC分类号： H05B7/07 ,  H01M4/96 ,  H05B7/06 ,  Y02E60/50 ,  Y10T29/49117 ,  Y10T29/4921 ,  Y10T156/1028

公开(公告)号：EP1707032B1

公开(公告)日：2008-11-19

申请号：EP04815624.4

申请日：2004-12-22

申请人： GrafTech International Holdings Inc.

发明人： BOWMAN, Brian ,  WELLS, Terrence, Patrick ,  WEBER, Thomas, William ,  PAVLISIN, James, J.

IPC分类号： H05B7/14 ,  H05B7/12

CPC分类号： H05B7/14 ,  Y02P10/256 ,  Y02P10/259

摘要： An electrode joint (50) is presented, the joint including two joined graphite electrodes (50a, 50b) and having a seal (10) interposed between the electrodes, the seal composed of a material having an oxidation rate equal to or less than that of the electrodes.

摘要翻译： 提供了一种电极接头（50），所述接头包括两个接合的石墨电极（50a，50b）并且具有介于电极之间的密封件（10），所述密封件由氧化速率等于或小于 电极。

公开(公告)号：EP2724104A1

公开(公告)日：2014-04-30

申请号：EP12802992.3

申请日：2012-06-22

申请人： Graftech International Holdings Inc.

发明人： BOWMAN, Brian

IPC分类号： F27D1/16

CPC分类号： F27D1/1684 ,  F27B3/085 ,  F27D1/0006 ,  F27D1/16 ,  F27D11/08

摘要： An improved method of operating an arc furnace is provided. The sidewall of the furnace includes a refractory lining. A charge of scrap metal is added to the furnace. The charge is melted and a slag layer is formed on the top of the melting charge. The furnace is tapped at the bottom to remove a portion of the melted charge. After tapping the furnace, the slag is splashed onto the sidewall to thereby coat the sidewall with a frozen slag layer.