MIXING SECTION FOR A PLASTIC EXTRUSION SCREW
    102.
    发明公开
    MIXING SECTION FOR A PLASTIC EXTRUSION SCREW 审中-公开
    MISCHABSCHNITTFÜREINE STRANGPRESSKUNSTSTOFFSCHRAUBE

    公开(公告)号:EP3094467A1

    公开(公告)日:2016-11-23

    申请号:EP15718996.0

    申请日:2015-01-20

    摘要: A mixing section for an extrusion screw has an inlet end and an outlet end as well as alternating wiping lands and barrier lands. The wiping lands have a greater helix angle than the barrier lands. The wiping lands and the barrier lands define inlet channels which narrow toward the outlet end and outlet channels which widen toward the outlet end. A helical pattern of mixing channels is cut into the wiping lands and the barrier lands. The mixing channels may be oriented generally at approximately right angles to the wiping lands and the barrier lands. A portion of the extrudate encounters the inside wall surfaces of the mixing channels and changes direction which improves the mixing of the extrudate.

    摘要翻译: 用于挤出螺杆的混合部分具有入口端和出口端以及交替的擦拭区域和障碍区域。 擦拭地面的螺旋角大于挡土墙。 擦拭区域和障碍区域限定了朝向出口端变窄的入口通道和朝向出口端变宽的出口通道。 将混合通道的螺旋形图案切割到擦拭区域和阻挡区域中。 混合通道可以通常以与刮擦区域和阻挡平台近似成直角的方向定向。 挤出物的一部分遇到混合通道的内壁表面并改变方向,这改善了挤出物的混合。