Appts. for continuous supply of charge for a crucible - has the charge melted at an intermediate stage

摘要

The appts. for continuous supply of charge (37) for a crucible (14) during drawing of monocrystals in a vessel (4) includes a closable container for reception of the charge, a shut-off valve and an outlet pipe from the container in the crucible. The charge (37) for the crucible (14) is melted at intermediate stage, and is delivered to the crucible in molten state. USE/ADVANTAGE - In the semiconductor industry, for drawing of monocrystals. It allows the crucible to be continuously loaded without disturbances (mechanical) and/or thermal shocks) and dust particle ingress.