发明名称 |
SINTERING APPARATUS AND SINTERING METHOD FOR GLASS PREFORM FOR OPTICAL FIBER |
摘要 |
A sintering apparatus heat-treats a porous glass preform for an optical fiber at a high temperature. The sintering apparatus includes: a glass preform elevating/lowering mechanism; a furnace core tube having an upper part having an opening part into which the glass preform is inserted by the elevating/lowering mechanism, and made of quartz glass; a heating furnace disposed on an outer circumference of the furnace core tube; an upper lid for closing the opening part of the furnace core tube; and a sealing member holding mechanism included in the upper lid and configured to hold a sealing member interposed between the opening part and the upper lid. |
申请公布号 |
US2015274576(A1) |
申请公布日期 |
2015.10.01 |
申请号 |
US201514617154 |
申请日期 |
2015.02.09 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
UCHIDA Kazuya |
分类号 |
C03B37/014 |
主分类号 |
C03B37/014 |
代理机构 |
|
代理人 |
|
主权项 |
1. A sintering apparatus for heat-treating a porous glass preform for an optical fiber at a high temperature to sinter the glass preform,
the sintering apparatus comprising: a glass preform elevating/lowering mechanism; a furnace core tube having an upper part having an opening part into which the glass preform is inserted by the elevating/lowering mechanism, and made of quartz glass; a heating furnace disposed on an outer circumference of the furnace core tube; an upper lid for closing the opening part of the furnace core tube; and a sealing member holding mechanism included in the upper lid and configured to hold a sealing member interposed between the opening part and the upper lid. |
地址 |
Tokyo JP |