发明授权
US06202447B1 Method of making a glass fiber preform with adjusting a spacing while increasing acceleration of a starting glass powder
失效
制备玻璃纤维预成型件的方法，其中增加起始玻璃粉末的加速度的同时调节间隔
- 专利标题： Method of making a glass fiber preform with adjusting a spacing while increasing acceleration of a starting glass powder
- 专利标题（中）： 制备玻璃纤维预成型件的方法，其中增加起始玻璃粉末的加速度的同时调节间隔
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申请号： US09070871申请日： 1998-05-01
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公开(公告)号： US06202447B1公开(公告)日： 2001-03-20
- 发明人: Alain Drouart , Benoît Gouez , Pierre Ripoche
- 申请人： Alain Drouart , Benoît Gouez , Pierre Ripoche
- 优先权： FR9705446 19970502
- 主分类号： C03B37027
- IPC分类号： C03B37027
摘要：
The invention relates to manufacturing glass fiber preforms. It relates to a method comprising rotating preform about its own axis, and displacing a plasma torch in translation relative to the preform in a direction parallel to the axis of the preform, the axes of the flame and of the preform and being offset by a certain distance, and then inserting glass powder into the plasma flame under gravity. According to the invention, the glass powder is accelerated before penetrating into the plasma flame by means of an accelerator gas, and the offset distance between the axes is reduced with increasing acceleration of the powder. The invention is applicable to manufacturing glass fibers, and in particular optical fibers.
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