Apparatus for the continuous feeding of material to be melted

摘要

In an apparatus for the continuous feeding of material to a melting crucible in the pulling of monocrystals in a vacuum tank, a first container (3) is provided which is provided with an internal lining (4) adapted to the container shape and having a funnel-shaped section (4') and a cylindrical outlet (4''') adjoining the latter, the outlet (4''') being displaceable through a lock valve (10) into the connecting pipe (11) of a second container (12) which in turn, through an outlet tube (18) with elbow (19) brought through the wall of the vacuum tank, leads into the area above the melting crucible. The two containers (3, 12) are for that purpose coupled with the hydraulic cylinder (28) of a linear actuator by which the distance between the two containers (3, 12) can be varied.