| 摘要 |
The invention relates to a device for extruding a thermoplastic plastic product, comprising an extruder screw (2) that is mounted in a housing (1), said screw having a plasticizing section (P) on the supply side, a degasification section (E) mounted upstream of a discharge section (A) and a flow arrester (S) between the plasticizing section (P) and the degasification section (E), said flow arrester having a screw section with a counter rotating delivery flight (3) and at least one flow channel (5) that bridges the flow arrester (S) and contains a melt filter (4). To reduce the drive output of the extruder screw (2), a sleeve (7), which encompasses the screw (6) and is mounted in the housing (1) in a rotationally fixed manner, is allocated to the screw section that forms the flow arrester (S) and the screw (6) in the screw section of the flow arrester (S) has a smaller screw diameter in relation to the plasticizing section (P) and the degasification section (E). |
