METHODS AND APPARATUS FOR EXTRUDING ARTICLES
13-08-1985 дата публикации
Номер:
CA1191690A
Принадлежит: WESTERN ELECTRIC CO, WESTERN ELECTRIC COMPANY, INCORPORATED
Контакты:
Номер заявки: 398676
Дата заявки: 17-03-1982
METHODS AND APPARATUS FOR EXTRUDING ARTICLES A fused silica glass tube (26) is extruded from a melt (21) in a chamber (11) pressurized with an inert gas. A shield (for example 29) is placed in close, spaced, relation to the melt (21) surface during the gas pressure extrusion process to substantially eliminate losses from the melt due to vaporization.