发明名称 |
MANUFACTURE OF METALLIC PIPE COVERING OPTICAL FIBER |
摘要 |
PURPOSE:To provide a method by which metallic pipe covering optical fiber can be efficiently manufactured by performing welding in a large quantity of heat without causing the thermal degradation of optical fiber. CONSTITUTION:In a manufacturing method of metallic pipe covering optical fiber constituted in such a way that a metallic belt M is bent in a pipe shape, and both side edge parts in the width direction of the metallic belt M are welded together, and a metallic pipe M is formed, and optical fiber F is inserted in the metallic pipe M through an optical fiber introducing pipe 20, the manufacturing method of the metallic pipe covering optical fiber is characterized in that a first inert gas supply pipe 21 is arranged in the optical fiber introducing pipe 20, and inert gas is flowed in. |
申请公布号 |
JPH07146425(A) |
申请公布日期 |
1995.06.06 |
申请号 |
JP19930296205 |
申请日期 |
1993.11.26 |
申请人 |
SUMITOMO ELECTRIC IND LTD;NIPPON KINZOKU CO LTD |
发明人 |
SANO HIROAKI;AMANO TSUGIO;ONISHI TOSHIO |
分类号 |
B21C37/08;B23K9/16;B23K9/167;B23K10/02;B23K26/00;B23K26/20;B23K31/00;G02B6/44 |
主分类号 |
B21C37/08 |
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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