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1. 发明授权

US09738558B2 Processing method of glass base material for optical fiber 有权
公开(公告)号：US09738558B2
公开(公告)日：2017-08-22
申请号：US14692745
申请日：2015-04-22
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Hideki Fujii
IPC分类号： C03B37/025 , C03B37/012
CPC分类号： C03B37/01242 , Y02P40/57
摘要： Provided is a method of processing a glass base material for optical fiber in which the glass base material for optical fiber is elongated to reduce a diameter thereof until reaching a final elongation diameter and form a completed base material. The method includes measuring an outer diameter distribution that includes an outer diameter of the glass base material for optical fiber; setting an effective region; calculating a target elongation diameter that is larger than the final elongation diameter and less than an average diameter of the effective region, and elongating the glass base material for optical fiber until reaching the target elongation diameter; and after reaching the target elongation diameter, further elongating the glass base material for optical fiber until reaching the final elongation diameter.

2. 发明授权

US09328012B2 Glass base material elongating method 有权
标题翻译：玻璃基材伸长方法
公开(公告)号：US09328012B2
公开(公告)日：2016-05-03
申请号：US14320652
申请日：2014-07-01
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Hideki Fujii
IPC分类号： C03B37/012 , C03B23/045 , C03B23/047
CPC分类号： C03B37/01242 , C03B23/045 , C03B23/047 , C03B37/0126 , Y02P40/57
摘要： To manufacture glass base material with high manufacturing yield, provided is a glass base material elongating method comprising forming a tapered portion where the outer diameter of the glass base material changes continuously, holding the glass base material with chucks, heating the glass base material held by chucks with a heat source, and with a portion of the glass base material softened, increasing the distance between the chucks to elongate the glass base material. The elongation begins from a state in which a position of the heat source at a position at which the outer diameter of the glass base material is set in a range from no less than 95% to no more than 98% of an average outer diameter of the trunk portion of the glass base material.
摘要翻译：为了制造高产率的玻璃基材，提供了一种玻璃基材延长方法，包括形成玻璃基材的外径连续变化的锥形部分，用卡盘保持玻璃基材，加热由玻璃基材保持的玻璃基材夹具与热源，并且玻璃基材的一部分软化，增加卡盘之间的距离以拉长玻璃基材。伸长开始于将玻璃基材的外径设定在不超过平均外径的95％以上且98％以下的范围内的热源的位置的状态玻璃基材的主干部分。

3. 发明授权

US10011516B2 Optical fiber base material machining method 有权
公开(公告)号：US10011516B2
公开(公告)日：2018-07-03
申请号：US15063437
申请日：2016-03-07
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Hideki Fujii , Takashi Koshigai
IPC分类号： C03B37/012 , C03C25/00 , C03C25/002 , C03B37/027
CPC分类号： C03B37/01251 , C03B37/02772 , C03B2205/47 , C03C25/002 , Y02P40/57
摘要： An optical fiber base material machining method for forming spindle-shaped portions at ends of the optical fiber base material by severing the optical fiber base material after reducing an outer diameter of the optical fiber base material to a predetermined target outer diameter at a predetermined machining position, comprising: reducing the outer diameter to a predetermined intermediate outer diameter between the outer diameter before the machining and the target outer diameter at the machining position; flame polishing a surface of the optical fiber base material in a region including the machining position; and further reducing the outer diameter of the optical fiber base material.

4. 发明授权

US09493374B2 Glass base material elongating method 有权
标题翻译：玻璃基材伸长方法
公开(公告)号：US09493374B2
公开(公告)日：2016-11-15
申请号：US13757860
申请日：2013-02-04
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Hideki Fujii
IPC分类号： C03B37/012 , C03B37/025 , C03B37/014
CPC分类号： C03B37/0124 , C03B37/01466 , Y02P40/57
摘要： A glass base material elongating method of elongating a glass base material to make a diameter of the glass base material smaller by connecting a pulling dummy at an end of the glass base material and then gripping and pulling the pulling dummy with a pair of rollers that grip or release the pulling dummy is provided. The method includes forming a rough surface part on the pulling dummy before elongating the glass base material.The rough surface part may be formed by grinding the pulling dummy. Also, the rough surface part of the pulling dummy may have a roughness of 5 μm or more.
摘要翻译：粗糙表面部分可以通过研磨拉动模具而形成。此外，拉动模具的粗糙表面部分可以具有5μm以上的粗糙度。

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