| 摘要 |
<p>Flow inducement or stirring apparatus 500 is able to circulate molten metal in a vertical plane. Preferably the apparatus 500 includes electromagnetic induction means. In use, the apparatus 500 may be inclined to the horizontal, at an angle of 45 or 30 degrees to 60 degrees, and may be positioned on an inclined furnace wall 502. Alternatively, the apparatus 500 can be positioned at an angle on a vertical wall by an attachment cradle or port 503. This cradle 503 may have an aperture which allows additives to be introduced to the molten metal, or sampling and degassing. Vertical circulation of the melt allows scrap materials etc. to be dragged down and submerged in the melt. The speed of stirring may be variable and may be pre-settable up to 50 Hz. The stirring apparatus 500 may be bi-directional, so that flow can be reversed to extract melt from a furnace. The electromagnetic induction may act through a thin, perhaps metal carbide, plate which may comprise tiles. Additionally, horizontal flow may occur between two chambers, wherein metal is melted in a first chamber. Also, an area for loading heavy scrap may be provided, and flow may be directed so that the heavy scrap is not submerged.</p> |
