发明申请
US20120167623A1 METHOD AND APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE
审中-公开
用于制造维生素二氧化硅可溶性的方法和装置
- 专利标题: METHOD AND APPARATUS 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方法和装置
-
申请号: US13335892申请日: 2011-12-22
-
公开(公告)号: US20120167623A1公开(公告)日: 2012-07-05
- 发明人: Toshiaki SUDO , Eriko SUZUKI
- 申请人: Toshiaki SUDO , Eriko SUZUKI
- 申请人地址: JP Akita-shi
- 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
- 优先权: JP2010-294630 20101231
- 主分类号: C03B20/00
- IPC分类号: C03B20/00 ; C03B19/09
摘要:
Accurate temperature measurement during manufacturing a vitreous silica crucible is enabled. The present invention provides an apparatus for manufacturing a vitreous silica crucible including: a mold for forming a silica powder layer by supplying silica powder therein; an arc discharge unit having carbon electrodes and a power supply unit and for heating and fusing the silica powder layer by arc discharge; and a temperature measurement unit for measuring temperature of a fused portion in the mold, wherein the temperature measurement unit is an radiation thermometer for measuring temperature by detecting radiation energy of a wavelength of 4.8 to 5.2 μm.