Production method of quartz stick
A process for preparing quartz rod with a diameter more than 10 mm includes such steps as using tungsten mandrel and continuous smelting furnace to produce quartz tube for more than 100 hr, picking up tungsten mandrel, blocking its lower end, and putting it back in continuous smelting furnace to pro...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A process for preparing quartz rod with a diameter more than 10 mm includes such steps as using tungsten mandrel and continuous smelting furnace to produce quartz tube for more than 100 hr, picking up tungsten mandrel, blocking its lower end, and putting it back in continuous smelting furnace to produce quartz rod without black core and air foams. |
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