APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
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United States of America Patent
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Issued Date -
Jun 7, 2012
app pub date -
Nov 30, 2011
filing date -
Dec 2, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided is an apparatus for manufacturing a vitreous silica crucible which has a structure which can reduce gaps between a partition wall and electrodes inserted into through-holes formed in the partition wall while enabling electrodes to move to adjust a heating temperature of arc discharge. A plate-shaped partition wall 15 is placed above the rotating mold 10. Electrodes 13 for heating and fusing are inserted into through-holes 16 penetrating in a thickness direction, and are directed toward the rotating mold 10. A rocking unit 40 is provided on an upper side of the partition wall 15 and rocks the electrodes 13 around virtual rocking axes P, and the virtual rocking axes P pass through the through-holes 16.
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