公开(公告)号：US20050262875A1

公开(公告)日：2005-12-01

申请号：US11081843

申请日：2005-03-17

申请人： Kohji Kusunoki ,  Shuichiro Kato ,  Yuichi Ohga

发明人： Kohji Kusunoki ,  Shuichiro Kato ,  Yuichi Ohga

IPC分类号： G02B6/00 ,  C03B23/04 ,  C03B23/043 ,  C03B23/045 ,  C03B23/049 ,  C03B37/012 ,  C03B37/018

CPC分类号： C03B23/0496

摘要： In a method of manufacturing the glass tube of the invention, a glass tube having an inner diameter of a predetermined size is formed by forming a softened portion by heating a glass material and inserting an inner forming member to the softened portion. An outer diameter of the softened portion is formed into an outer diameter of a predetermined size by bringing an outer forming member movable in a direction orthogonal to a longitudinal direction axis of the glass material into contact with an outer circumference of the softened portion.

摘要翻译： 在制造本发明的玻璃管的方法中，通过加热玻璃材料并将内部成形构件插入软化部来形成软化部，形成内径为规定尺寸的玻璃管。 通过使外部成形构件能够沿与玻璃材料的纵向轴线正交的方向移动而与软化部的外周接触，使软化部的外径形成为规定尺寸的外径。