METHOD OF MELTING SILICA POWDER CHARGED INTO MELTING CRUCIBLE AND MELTING CRUCIBLE FOR EXECUTING SAID METHOD

Title:

METHOD OF MELTING SILICA POWDER CHARGED INTO MELTING CRUCIBLE AND MELTING CRUCIBLE FOR EXECUTING SAID METHOD

Document Type and Number:

Japanese Patent JPS6364910

Kind Code:

A

Abstract:

A process for continuous or batchwise melting of silicon powder in particular, powder having a large amount of fines, and a melting crucible for carrying out this process are specified. The melting crucible is designed so that a melt pool having a certain minimum height and which is covered by unmelted silicon powder is provided. Thus, added material first comes into contact with silicon powder which is already present and only gradually reaches the melting zone. The amount of melt produced which exceeds the minimum height of the melt pool flows out of the melting crucible. The minimum height is maintained in the process by using a crucible which has a siphon-like outlet in the base.

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Inventors:

YOOZEFU DEIITERU
IERUKU KOTEIRUGE

Application Number:

JP20009087A

Publication Date:

March 23, 1988

Filing Date:

August 12, 1987

Export Citation:

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Assignee:

HELIOTRONIC GMBH

International Classes:

C01B33/02; B01J6/00; C30B11/00; F27B14/18; (IPC1-7): C01B33/02; F27B14/18

Attorney, Agent or Firm:

Kiyotaka Sasaki

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