发明名称 |
APPARATUS FOR SINTERING A GLASS PREFORM FOR AN OPTICAL FIBER AND SINTERING METHOD THEREOF |
摘要 |
The present invention provides an apparatus for sintering a glass preform for an optical fiber, wherein the glass preform for the optical fiber is received in a muffle tube and is heated in an atmospheric gas while being suspended on a shaft and supported thereon, the apparatus comprising: a first gas seal that is provided at an upper end of the muffle tube, the shaft being inserted therethrough; a buffering chamber that is provided above the first gas seal and that covers the shaft; a second gas seal that is provided at an upper end of the buffering chamber, the shaft being inserted therethrough; and a unit that introduces the atmospheric gas exhausted from the muffle tube into the buffering chamber. |
申请公布号 |
US2014345332(A1) |
申请公布日期 |
2014.11.27 |
申请号 |
US201414276263 |
申请日期 |
2014.05.13 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
OTOSAKA Tetsuya;UCHIDA Kazuya |
分类号 |
C03B37/014 |
主分类号 |
C03B37/014 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus for sintering a glass preform for an optical fiber, the glass preform for the optical fiber being received in a muffle tube and being heated in an atmospheric gas while being suspended on a shaft and supported thereon, comprising:
a first gas seal that is provided at an upper end of the muffle tube, the shaft being inserted therethrough; a buffering chamber that is provided above the first gas seal and that covers the shaft; a second gas seal that is provided at an upper end of the buffering chamber, the shaft being inserted therethrough; and a unit that introduces the atmospheric gas exhausted from the muffle tube into the buffering chamber. |
地址 |
Tokyo JP |