| 摘要 |
The invention is based on the problem of producing a melt that is as homogeneous as possible, to which fresh material in the form of granulate is continuously supplied. Since the granulate is cooler than the melt, heat sinks form that are especially pronounced when the granulate forms clumps in the melt. Therefore the invention suggests the provision of means for distributing the granulate. Especially suitable means are inductors ( 6 ) arranged outside the melting crucible ( 3 ) that generate an alternating magnetic field in the melt. In this way, electrical currents are induced there that in turn cause the material flows. The inductors are arranged and controlled in such a way that a rapid distribution of the granulate is effected and thus its rapid melting. In this way, good homogeneity is achieved, especially in the center of the melt where the removal of the melted material also occurs.
|
