-
公开(公告)号：US3993723A
公开(公告)日：1976-11-23
申请号：US480273
申请日：1974-06-17
CPC分类号： B29C47/904 , B29C47/0026 , B29C47/8835 , B29C47/90 , B29C47/903 , B29C47/905 , B29C47/907 , B29C47/908 , B29C2791/006 , B29C47/0057 , B29C47/0059 , B29C47/884 , B29C47/8895
摘要： Cooling an extruding thermoplastic tube by feeding the tube adjacent a cooling surface, maintaining a sheath of heat-transfer fluid between the tube and surface and preferentially cooling at least a selected area of the tube by transversely displacing the tube to decrease the thickness of the sheath between the selected area and the cooling surface. The invention is particularly suitable, for the production of thermoplastic films by orienting a cast tubular extrudate which has been cooled by means of an internal mandrel.
摘要翻译： 通过将管子靠近冷却表面进行冷却来冷却挤出的热塑性管，在管和表面之间保持传热流体的护套，并优先通过横向移动管来冷却管的至少一个选定区域，以减小护套的厚度 在选定区域和冷却表面之间。 本发明特别适用于通过使已经通过内部心轴冷却的铸管挤出物定向生产热塑性薄膜。
-
公开(公告)号：US4093412A
公开(公告)日：1978-06-06
申请号：US725686
申请日：1976-09-23
CPC分类号： B29C47/907 , B29C47/0026 , B29C47/8835 , B29C47/903 , B29C47/0023 , B29C47/0057 , B29C47/0059 , B29C47/884 , B29C47/888 , B29C47/8895
摘要： Cooling an extruding thermoplastic tube by feeding the tube adjacent a cooling surface, maintaining a sheath of heat-transfer fluid between the tube and surface and preferentially cooling at least a selected area of the tube by transversely displacing the tube to decrease the thickness of the sheath between the selected area and the cooling surface. The invention is particularly suitable, for the production of thermoplastic films by orienting a cast tubular extrudate which has been cooled by means of an internal mandrel.
摘要翻译： 通过将管子靠近冷却表面进行冷却来冷却挤出的热塑性管，在管和表面之间保持传热流体的护套，并优先通过横向移动管来冷却管的至少一个选定区域，以减小护套的厚度 在选定区域和冷却表面之间。 本发明特别适用于通过使已经通过内部心轴冷却的铸管挤出物定向生产热塑性薄膜。
-
搜索结果
2 条记录 (耗时 0.012 秒)
