Quartz glass crucibles

Glass manufacturing – Processes – With shaping of particulate material and subsequent fusing...


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65 71, 65144, C03B 1904




A flat-bottomed quartz glass crucible for the manufacture of monocrystalline silicon is made by disposing granular quartz particles on a flat base in a cylindrical mold. A vacuum is drawn on the particles through vacuum holes in the base to retain the particles thereon while the base and mold are rotated, and while the particles are heated to fuse them into a quartz glass crucible shape.

patent: 2026940 (1936-01-01), Hendryx
patent: 3038199 (1962-06-01), Bartow
patent: 4266925 (1981-05-01), Book
patent: 4370294 (1983-01-01), Franken
patent: 4416680 (1983-11-01), Bruning


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