公开(公告)号：US3701357A

公开(公告)日：1972-10-31

申请号：US3701357D

申请日：1969-09-23

Applicant: ASEA AB

Inventor： GRANSTROM STAFFAN N ,  GORANSSON INGEMAR E

IPC: B22D45/00 ,  B22D11/18 ,  B22D39/00 ,  F16K31/06 ,  H05B6/16 ,  H05B6/20 ,  F15C1/04

CPC classification number: H05B6/20 ,  B22D11/18 ,  B22D39/003 ,  Y10T137/2191

Abstract: Valve means for ladles or furnaces, preferably of channel type, provided with at least one bottom tap hole. This means comprises a magnetic circuit with an ''''air gap'''' in the hole and with a flux direction straight across the flow direction in said hole. Current conductors are also arranged to conduct electric current straight across the stream, perpendicular to the flux, and a force is thus produced in the melt in the hole directed upwards or downwards and depending on the law of magnetic force. The invention also includes an embodiment with similar means in a channel type furnace, but used for circulating molten metal in the channels of the furnace.

Abstract translation: 用于装有至少一个底部抽头孔的浇包或熔炉的阀装置，优选地是通道型。 该装置包括在孔中具有“空气间隙”的磁路，并且在所述孔中具有沿流动方向直线的磁通方向。 电流导体还被布置成使电流直接穿过流，垂直于磁通，并且因此在孔中的熔体中产生的力被向上或向下指向并且取决于磁力的定律。 本发明还包括在通道式炉中具有类似装置的实施例，但是用于在炉的通道中循环熔融金属。