Method of manufacturing quartz double crucible assembly

Details Method of manufacturing quartz double crucible assembly Method of manufacturing quartz double crucible assembly

1989-09-27

1991-12-03

Kunemund, Robert

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

1566191, 1566204, 156DIG64, 156DIG83, 422249, C30B 1552

Patent

active

050697412

ABSTRACT:
A quartz double crucible assembly utilized for producing silicon crystalline rods is manufactured as follows. First, outer and inner quartz crucibles are prepared by means of arc fusion method. Then, the outer and inner crucibles are received in a vessel accommodated in a heat-treating furnace. Subsequently, the crucibles are heated to a prescribed elevated temperature. Thus, the outer and inner crucibles are caused to join together, and a double crucible assembly is produced.

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patent: 4036595 (1977-07-01), Lorenfini et al.
patent: 4207293 (1980-06-01), Scholl et al.
patent: 4235848 (1980-11-01), Sokolov et al.
patent: 4352784 (1982-10-01), Lin

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