| 摘要 |
<p>The present invention aims at meeting the need to increase the fusion viscosity index of hollow glassware to ensure a more efficient cooling of same, thereby reducing the manufacturing run. According to the invention, the inner area of the hollow glassware is crossed by a gas medium characterized by a great radiation absorption capacity of 2000 to 5000 nm. Use can be made for example of propane, methane, carbon monoxide, carbon dioxide or water steam. The gas medium can be fed to either an open or closed cycle. The inventive method finds its application when cooling the hollow glassware in fusion, including all kinds of hollow glassware, glass tubes of the most various shapes and picture tubes.</p> |
