发明名称 |
Dehydration-sintering furnace, a manufacturing method of an optical fiber preform utilizing the furnace and an optical fiber preform manufactured by the method |
摘要 |
A dehydration-sintering furnace for dehydrating and/or sintering an optical fiber preform for use in production of an optical fiber includes a muffle for accommodating the optical fiber preform, a heater for heating the muffle, and a pressure fluctuation absorbing apparatus connected to the muffle. Since the pressure fluctuation absorbing apparatus is thermally insulated from a room temperature atmosphere or heated, vapor produced in a dehydration-sintering process is prevented from condensing (liquefying) in a pressure fluctuation absorbing apparatus, thereby preventing reduced dehydration effectiveness in the muffle and reduced quality of the optical fiber preform.
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申请公布号 |
US2005166640(A1) |
申请公布日期 |
2005.08.04 |
申请号 |
US20040004966 |
申请日期 |
2004.12.07 |
申请人 |
FUJIKURA LTD. |
发明人 |
SAITOU MANABU;YAMADA NARITOSHI |
分类号 |
C03B37/014;(IPC1-7):C03B37/018 |
主分类号 |
C03B37/014 |
代理机构 |
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代理人 |
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