公开(公告)号：EP2513357A1

公开(公告)日：2012-10-24

申请号：EP09805823.3

申请日：2009-12-18

申请人： Arcelormittal Investigación y Desarrollo SL

发明人： BOURDOUXHE, Michel

IPC分类号： C25C3/08 ,  C25C3/16 ,  B21B1/16

CPC分类号： C25C3/08 ,  B21B1/16 ,  C25C3/16

摘要： A method for producing a cathode bar for an electrolytic cell for aluminium smelting is described. A steel semi-product is hot rolled in such as way as to form a cathode bar (50) exhibiting a cross sectional shape composed of a semi¬ circular portion (54), a flattened portion (52), and two flanks (56) joining each side of said circular portion to the flattened portion. The width (WF) of the flattened portion is at least 1.1 times the radius (R
1 ) of the semi-circular portion, preferably about 1.5 times the radius (R
1 ) of the semi-circular portion, or more.