| 摘要 |
A method and a device for braking the movement of a melt in non-solidified portions of a cast strand during casting of metal. Melt flows into a mould which comprises four copper plates (2, 3) which form a downwardly open casting mould with a substantially rectangular cross section. A static or periodic low-frequency magnetic field (5) is generated across the path of the inflowing melt whereby electric currents are induced in the melt. According to the invention, two opposite copper plates (2) are electrically insulated from each other, and the induced currents are returned via an external return conductor (13) which is connected between the two insulated copper plates (2). The induced currents together with the magnetic field give rise to a force which acts in such a direction that the movement of the melt is braked along the whole width of the mould. |
