发明名称 |
METHODS FOR MANUFACTURING GLASS FINE PARTICLE DEPOSIT AND GLASS BASE MATERIAL |
摘要 |
One object of the present invention is to provide manufacturing methods of a glass-fine-particle-deposited body and a glass base material, the methods being capable of improving an adhering efficiency of the produced glass fine particles on a starting rod or a glass-fine-particle-deposited body. In the method for manufacturing a glass-fine-particle-deposited body, at least a part of a gas supplying pipe 25 from a temperature controlled booth 24 to a burner 18 for cladding is temperature-controlled so that the temperature at the burner side becomes high and temperature gradient becomes 5°C/m or more. The temperature control is performed so that the temperature gradient becomes preferably 15°C/m or more, more preferably 25°C/m or more. Specifically, the part is controlled to the predetermined temperature gradient by winding a tape heater 26 that is a heating element on the outer circumference of the gas supplying pipe 25 from the temperature controlled booth 24 to the burner 18 for cladding and temperature-controlling the tape heater 26. |
申请公布号 |
EP2762456(A4) |
申请公布日期 |
2015.06.03 |
申请号 |
EP20120834881 |
申请日期 |
2012.09.28 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
ISHIHARA, TOMOHIRO;FURUKAWA, MASATO |
分类号 |
C03B8/04;C03B19/14;C03B37/014 |
主分类号 |
C03B8/04 |
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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