Polyphase cold crucible for fusion of e.g. glass, at high temperature, has polyphase inductor creating rotating electromagnetic field, homopolar contour and superimposed crowns constituting enclosure i.e. shroud, and bottom of crucible

摘要

The crucible has a polyphase inductor creating a rotating electromagnetic field, homopolar contour, and superimposed crowns constituting an enclosure i.e. shroud. The crowns constitute the bottom of the crucible. The homopolar contour maintains an inductor by holding output of the phases by welding or brazing or by a mechanical unit. The homopolar contour constitutes a homopolar electric pole. The crowns are electrically insulated with respect to each other by constituting the enclosure.