公开(公告)号：EP0714330A1

公开(公告)日：1996-06-05

申请号：EP94921752.0

申请日：1994-07-29

申请人： FOSECO INTERNATIONAL LIMITED

发明人： CLARK, Michael Robert ,  SUTTON, Dennis

IPC分类号： B22D11 ,  C21C7 ,  C22B9

CPC分类号： B22D11/118 ,  C22B9/055

摘要： The invention relates to a means of purifying molten metal in a vessel, e.g. a tundish wherein an active inclusion-removing covering layer may be used in a more cost-effective manner. Accordingly, the invention provides a method of purifying molten metal in a molten metal handling vessel (10, 10'), the vessel having an inlet region (A, A') and an outlet region (C, C') for the molten metal, characterised in that the vessel (10, 10') is divided to include a cleaning region (B, B') between the inlet region (A, A') and the outlet region (C, C'), the molten metal (21, 21') is caused to flow from the inlet region (A, A') through the cleaning region (B, B') to the outlet region (C, C') and an active inclusion-removing covering layer (23, 23') is placed on the surface (22, 22') of the molten metal (21, 21') in the cleaning region (B, B').