Method of manufacturing quartz glass crucibles with low bubble c

Details Method of manufacturing quartz glass crucibles with low bubble c Method of manufacturing quartz glass crucibles with low bubble c

1986-02-24

1986-12-30

Kellogg, Arthur

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 182, 65 35, 65 71, 65302, 264101, 264102, 264311, C03B 1904

Patent

active

046326863

ABSTRACT:
In the manufacture of a quartz glass crucible of low bubble content, a first layer of granular quartz material is disposed on the interior of a rotating mold through the walls of which a vacuum can be drawn. A second layer of finer quartz material is then disposed on the first layer. The quartz material is then heated, melted and fused to form a crucible.

REFERENCES:
patent: 3853520 (1974-12-01), Rau
patent: 3902885 (1975-09-01), Rau
patent: 4416680 (1983-11-01), Bruning et al.

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