| 摘要 |
PROBLEM TO BE SOLVED: To provide a glass tube molding apparatus and a method of molding a glass tube such that a glass tube can have its viscosity adjusted speedily to suitable viscosity at a place where the glass tube starts landing on a support roller in an annealer without entailing temperature change in a muffle furnace, and thereby can maintain constant quality. ! SOLUTION: An annealer 5 has a plurality of support rollers 52, 52, ..., arranged linearly in parallel in a tube drawing direction of a glass tube G to support the glass tube, and can move vertically and/or rotate vertically. ! COPYRIGHT: (C)2015,JPO&INPIT |
