| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a colored glass tube with high shape accuracy. <P>SOLUTION: The angle of the rotation axis C of a sleeve 20 in the horizontal direction is represented byθ(°). The length of the sleeve 20 in the extension direction of the rotation axis C is represented by L (mm). The temperature of glass at the base end 20a of the sleeve 20 is represented by a(°C). The temperature of glass at the tip end 20b of the sleeve 20 is represented by b(°C). The ratio of (a-b)/Lcosθis made≥0.1. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
