| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for designing a dropping nozzle capable of forming a glass gob having a required mass, a dropping nozzle formed by using it, and an apparatus for manufacturing a glass gob using it. <P>SOLUTION: The method is for designing a dropping nozzle to prepare a molten glass droplet having a required mass. The shape of a molten glass droplet hanging at the tip of a dropping nozzle is calculated and the minimum diameter of the neck of the droplet shape is calculated so as to satisfy the formula: (the maximum volume of a molten glass droplet capable of hanging at the dropping nozzle)×(the density of the molten glass droplet)=(the required mass). The minimum diameter is used as the diameter of the dropping nozzle. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
