发明申请
US20120131954A1 APPARATUS AND METHOD FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
有权
用于制造维生素二氧化硅可溶性的装置和方法
- 专利标题： APPARATUS AND METHOD FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
- 专利标题（中）： 用于制造维生素二氧化硅可溶性的装置和方法
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申请号： US13389392申请日： 2010-08-09
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公开(公告)号： US20120131954A1公开(公告)日： 2012-05-31
- 发明人: Toshiaki Sudo , Eriko Suzuki , Hiroshi Kishi , Takeshi Fujita
- 申请人： Toshiaki Sudo , Eriko Suzuki , Hiroshi Kishi , Takeshi Fujita
- 申请人地址： JP Akita-shi, Akita
- 专利权人： JAPAN SUPER QUARTZ CORPORATION
- 当前专利权人： JAPAN SUPER QUARTZ CORPORATION
- 当前专利权人地址： JP Akita-shi, Akita
- 优先权： JP2009-187333 20090812
- 国际申请： PCT/JP2010/063455 WO 20100809
- 主分类号： C03B20/00
- IPC分类号： C03B20/00
摘要：
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.