
基本信息:
- 专利标题: METHOD AND APPARATUS OF PRODUCING OPTICAL FIBER PREFORM
- 专利标题(中):生产光纤预制件的方法和装置
- 申请号:US13461374 申请日:2012-05-01
- 公开(公告)号:US20120279259A1 公开(公告)日:2012-11-08
- 发明人: Naritoshi YAMADA , Shunichirou HIRAFUNE
- 申请人: Naritoshi YAMADA , Shunichirou HIRAFUNE
- 申请人地址: JP Tokyo
- 专利权人: FUJIKURA LTD.
- 当前专利权人: FUJIKURA LTD.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2011-103132 20110502
- 主分类号: C03B37/018
- IPC分类号: C03B37/018
摘要:
A method of producing optical fiber preform includes: forming a deposited layer by depositing glass particles on a periphery of a target element in a deposition mode while burning a mixed gas containing a glass source material gas, a flaming gas, and a supporting gas by use of a flaming burner; maintaining a state where the supporting gas flows at a flow velocity greater than or equal to a flow velocity at which a nozzle end of the supporting gas discharge nozzles does not glow while maintaining a pilot burner by allowing the flaming gas to flow to the seal gas discharge nozzle after a seal gas is replaced with the flaming gas in a case where a mode is changed from the deposition mode to a non-deposition mode; and replacing the flaming gas flowing to the flaming gas port with a purge gas.
摘要(中):
制造光纤预制棒的方法包括:通过以沉积模式在目标元件的周围沉积玻璃颗粒而形成沉积层,同时通过使用燃烧包含玻璃原料气体,燃烧气体和支持气体的混合气体 的燃烧器; 保持支持气体以大于或等于支持气体排出喷嘴的喷嘴端不发光的流速流动的状态,同时通过允许火焰气体流到密封气体而保持引燃燃烧器 在模式从沉积模式改变为非沉积模式的情况下,用燃烧气体替换密封气体之后的排出喷嘴; 并用吹扫气体代替流入燃烧气体端口的燃烧气体。
公开/授权文献:
- US08869565B2 Method and apparatus of producing optical fiber preform 公开/授权日:2014-10-28
IPC结构图谱:
C | 化学;冶金 |
--C03 | 玻璃;矿棉或渣棉 |
----C03B | 制造、成型或辅助工艺 |
------C03B37/00 | 由软化的玻璃、矿物或渣制的絮片、纤维或细丝的制造或处理 |
--------C03B37/01 | .玻璃纤维或细丝的制造 |
----------C03B37/012 | ..拉制纤维或细丝用预制棒的制造 |
------------C03B37/014 | ...完全或部分用化学方法制造 |
--------------C03B37/018 | ....用玻璃基体上沉积玻璃法,例如用化学气相沉积法 |