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公开(公告)号：US20160089814A1
公开(公告)日：2016-03-31
申请号：US14867036
申请日：2015-09-28
IPC分类号： B29B7/48
CPC分类号： B29B7/48 , B29C47/402 , B29C47/6075 , B29C47/6081
摘要： A double-screw extruder for thermoplastic materials, with a first and a second extruder screw, whereby the extruder screws have an inlet and an outlet and a core, helically extending screw flights being arranged through the core from the inlet to the outlet, so that the screw peaks and valleys are circumferential, and the peaks of the first screw penetrate into the valleys of the second screw, and vice versa. The screw flights may have a geometry which is step-shaped in cross section, whereby the steps may be provided such that the stepped course of the peaks is congruent with the stepped course of the valleys.
摘要翻译： 一种用于热塑性材料的双螺杆挤出机，具有第一和第二挤出机螺杆，由此挤出机螺杆具有入口和出口以及芯部，螺旋形延伸的螺旋排列通过芯从入口到出口布置，使得 螺旋峰和谷是周向的，并且第一螺钉的峰部穿入第二螺钉的谷部，反之亦然。 螺杆螺纹可以具有横截面为阶梯形的几何形状，由此可以设置这些台阶，使得峰的阶梯状行程与谷的阶梯状行程一致。
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公开(公告)号：US09827692B2
公开(公告)日：2017-11-28
申请号：US14867036
申请日：2015-09-28
CPC分类号： B29B7/48 , B29C47/402 , B29C47/6075 , B29C47/6081
摘要： A double-screw extruder for thermoplastic materials, with a first and a second extruder screw, whereby the extruder screws have an inlet and an outlet and a core, helically extending screw flights being arranged through the core from the inlet to the outlet, so that the screw peaks and valleys are circumferential, and the peaks of the first screw penetrate into the valleys of the second screw, and vice versa. The screw flights may have a geometry which is step-shaped in cross section, whereby the steps may be provided such that the stepped course of the peaks is congruent with the stepped course of the valleys.
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