发明名称 |
Rod in tube method for producing optical fibres, comprises reducing pressure inside cavity between rod and tube during heating and flushing with inert gas |
摘要 |
During the heating step the pressure inside the annular cavity (22) between the rod (11) and tube (12) is reduced and this cavity is flushed with an inert gas (19). A forming method for producing optical fibres (13) comprises placing a tubular mantle around a rod-shaped primary forming part and heating so that the mantle is shrunk onto the rod. During the heating step the pressure inside the annular cavity between the rod and mantle is reduced and this cavity is flushed with an inert gas. |
申请公布号 |
NL1025476(C2) |
申请公布日期 |
2005.08.15 |
申请号 |
NL20041025476 |
申请日期 |
2004.02.12 |
申请人 |
DRAKA FIBRE TECHNOLOGY B.V. |
发明人 |
JELLE PHILLIP TERPSMA;DENNIS ROBERT SIMONS |
分类号 |
C03B37/012;C03B37/027 |
主分类号 |
C03B37/012 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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