Furnace cover of main furnace chamber of single crystal furnace

The utility model discloses a furnace cover of a main furnace chamber of a single crystal furnace, and the furnace cover comprises a main body and a neck part, wherein the main body and the neck part are respectively provided with a crystal-drawing hole communicated with the inner cavity of the main...

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Bibliographische Detailangaben
1. Verfasser:	LIN XIXIAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR CHEMISTRY CRYSTAL GROWTH METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Beschreibung
Zusammenfassung:	The utility model discloses a furnace cover of a main furnace chamber of a single crystal furnace, and the furnace cover comprises a main body and a neck part, wherein the main body and the neck part are respectively provided with a crystal-drawing hole communicated with the inner cavity of the main furnace chamber, the top surface of the neck part is connected with a flange, the upper surface of the main body around the neck part is provided with an observation window and a test hole, the main body is dish-shaped, a reinforcing rib and a lifting plate are arranged between the main body and the neck part, the bottom side of the reinforcing rib is welded on the upper surface of the main body, the vertical side of the reinforcing rib is welded on the neck part, the bottom side of the lifting plate is welded on the upper surface of the main body and extends to the edge of the main body, the vertical side of the lifting plate is welded on the neck plate, the main body and the neck part are sandwich layers, a spir