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公开(公告)号:US20040148965A1
公开(公告)日:2004-08-05
申请号:US10430979
申请日:2003-05-07
IPC分类号: F25D013/06 , F25J003/00 , F25D025/00 , F25D017/02
CPC分类号: B29C44/22 , B29C35/16 , B29C48/09 , B29C48/11 , B29C48/12 , B29C48/30 , B29C48/304 , B29C48/34 , B29C48/49 , B29C48/904 , B29C48/908 , B29C48/9115 , B29C48/919 , B29C2035/1616 , B29C2035/165 , B29C2035/1658 , B29K2001/00 , B29L2031/60 , F25B9/002
摘要: The present invention relates to a system and method for directing a fluid through a die. One embodiment of the present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface that defines a hollow portion of an extrudate). In another embodiment of the present invention, a fluid may be directed through a die for forming a layer or portion of a product. More particularly, a fluid may be directed through a die to form an external or core layer of a product from a foamed or unfoamed material including, but not limited to, a cellulosic-filled plastic composite. For example, the present invention includes a system and method for through the die foaming of extruded products.
摘要翻译: 本发明涉及一种用于引导流体通过模具的系统和方法。 本发明的一个实施方案通过将冷却流体引向挤出物的表面(例如,限定挤出物的中空部分的内表面)来彻底冷却挤出物特别有用。 在本发明的另一个实施例中,可以将流体引导通过模具以形成产品的一个或多个部分。 更具体地,流体可以被引导通过模具以从发泡或未发泡的材料形成产品的外层或芯层,包括但不限于纤维素填充的塑料复合材料。 例如,本发明包括通过挤出产品的模头发泡的系统和方法。