Apparatus and method for manufacturing vitreous silica crucible
AssigneeJapan Super Quartz Corporation
InventorsToshiaki Sudo, Eriko Suzuki, Hiroshi Kishi, Takeshi Fujita
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Abstract
There are provided an apparatus and a method for manufacturing a vitreous silica crucible which can prevent the deterioration of the inner surface property in the manufacturing process of a vitreous silica crucible. The apparatus includes a mold defining an outer shape of a vitreous silica crucible, and an arc discharge unit having electrodes and a power-supply unit, wherein each of the electrodes includes a tip end directed to the mold, the other end opposite to the tip end, and a bent portion provided between the tip end and the other end.
Claims11
An apparatus for manufacturing a vitreous silica crucible, comprising a mold defining an outer shape of a vitreous silica crucible, a position displacement control unit for enabling displacement of the position state of the mold, and an arc discharge unit having electrodes and a power-supply unit, wherein
- each of the electrodes includes a tip end directed to the mold, the other end opposite to the tip end, and a bent portion provided between the tip end and the other end so that an axis line at the other end and an axis line at the tip end do not overlap.
Dependencies are inferred from the claim text.