| 摘要 |
The present invention relates to a single screw extruder with a cylinder (1), which has a melting zone (14) and a homogenizing zone (12), which adjoins the melting zone (14), and a screw (2) rotatably mounted in the cylinder (1), which has at least two process sections (6, 8) following each other, in the region of the homogenizing zone (12), the second of which in the conveying direction is constructed as a shear section. It is an object of the present invention to provide a single screw extruder which makes possible an improved melting effect with at the same time an increased throughput, reduced melt temperature and improved capability of pressure build-up. According to the invention it was discovered that this problem can be solved in that in the homogenizing zone (12) of the single screw extruder at least one groove (4) is provided running in the longitudinal direction in the inner wall of the cylinder, which groove, viewed in the conveying direction ends in the region between a first process section and the following shear section (8). |
