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    • 80. 发明申请
    • PROCESS AND EXTRUSION DIE HEAD FOR FORMING A DIVIDED CONDUIT
    • 用于形成分割导管的工艺和挤出模头
    • WO2018017703A1
    • 2018-01-25
    • PCT/US2017/042835
    • 2017-07-19
    • MILLIKEN & COMPANY
    • MORRIS, David Drew
    • B29C47/04B29C47/28F16L9/19B29C47/10B29C47/08F16L11/22
    • A process for extruding a divided conduit (400) comprising obtaining an extrusion die head (10), inserting a strip-shaped substrate (300) into the extrusion die head (10) such that the strip shaped substrate (300) is located within the tip gap (150) and extends at least partially out of the tip gap (150) such that the longitudinal edges are located in the die gap (250), and flowing molten polymer through die gap (250), encapsulating the longitudinal edges of the strip-shaped substrate (300) in molten polymer. The extrusion die head (10) contains a tip (110) region and a bushing (200). The tip (110) region contains at least 2 tips (100, 110) separated by a tip gap (150). The bushing extends (360) around the tip (110) region and the distance between the tip (110) region and the inner surface (210) of the bushing (200) is defined to be the die gap (250) and the die gap (250) varies around the bushing (200).
    • 一种用于挤压分开的导管(400)的方法,包括:获得挤出模头(10);将带状基底(300)插入挤出模头(10)中,使得带状 衬底(300)位于尖端间隙(150)内并且至少部分地延伸出尖端间隙(150),使得纵向边缘位于模具间隙(250)中,并且使熔融聚合物流动通过模具间隙(250) ),将带状基材(300)的纵向边缘包封在熔融聚合物中。 挤压模头(10)包含尖端(110)区域和衬套(200)。 尖端(110)区域包含被尖端间隙(150)分开的至少两个尖端(100,110)。 套管围绕尖端(110)区域延伸(360),并且尖端(110)区域与套管(200)的内表面(210)之间的距离被限定为模具间隙(250)并且模具间隙 (250)在衬套(200)周围变化。