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公开(公告)号:US20130234357A1
公开(公告)日:2013-09-12
申请号:US13787490
申请日:2013-03-06
IPC分类号: B29C47/00
CPC分类号: B29B9/10 , B01J2/04 , B29B9/06 , B29B2009/125 , B29C47/0011 , B29C47/0014 , B29C47/0066 , B29C47/0076 , B29C47/0085 , B29C47/12 , B29C47/92 , B29C2947/926 , B29C2947/92704 , B29C2947/92904 , B33Y10/00 , B33Y30/00
摘要: Polymer pellets are formed using air to influence the separation of polymer from a polymer melt. In accordance with one or more embodiments, a polymer material is extruded through a nozzle to form a polymer melt extending from the nozzle. A non-uniform thickness is generated in the polymer melt using a gas or gasses to apply a drag force to the polymer melt. This drag force reduces a thickness of a portion of the polymer melt adjacent the nozzle, and the polymer melt is fractured into discrete droplets at the reduced thickness. The discrete droplets are then solidified to form pellets.
摘要翻译: 使用空气形成聚合物颗粒以影响聚合物与聚合物熔体的分离。 根据一个或多个实施例,聚合物材料通过喷嘴挤出以形成从喷嘴延伸的聚合物熔体。 使用气体或气体在聚合物熔体中产生不均匀的厚度,以向聚合物熔体施加拖曳力。 该牵引力减小了邻近喷嘴的聚合物熔体的一部分的厚度,并且聚合物熔体在减小的厚度处被分裂成离散的液滴。 然后将离散的液滴固化以形成颗粒。