公开(公告)号：US3618917A

公开(公告)日：1971-11-09

申请号：US3618917D

申请日：1970-02-09

申请人： ASEA AB

发明人： FREDRIKSON BENGT ,  HELLSING SVEN ,  FOLGERO KARE

IPC分类号： H05B6/16 ,  C21C5/52 ,  C22B4/00 ,  F27D11/06 ,  H05B6/20 ,  C21C7/00

CPC分类号： H05B6/20 ,  C21C5/5241 ,  C22B4/00 ,  Y02P10/253

摘要： A channel-type induction furnace has one or more inductors, a bottom channel beneath the inductor or inductors and side channels connecting the bottom channel to the hearth. In the case of more than one inductor, there is also at least one central channel running between the inductors. Nozzles are provided openings into the bottom channel opposite the side and central channels for the supply of inert and/or active gas into the channels to modify the flow therein and to carry to the top of the melt various impurities.