| 摘要 |
A passage for transferring molten plastic material processed in an extruder contains distributing elements for dividing the molten stream into partial streams and for recombining said partial streams in a different relation to each other. In order to minimize boundary layer faults which result from the distribution of the partial streams, the molten stream is divided into partial streams by at least one annular distributing disc, which is provided on its entrance side with an annular series of openings, and in which adjacent ones of said openings are succeeded by bores which extend radially outwardly and radially inwardly, respectively, so that the molten stream is divided into sectorlike partial streams which are conducted radially inwardly and radially outwardly, respectively, in adjacent bores and are then recombined. |
