| 摘要 |
The invention relates to a method for making granules from strands of a melt of thermoplastic polymer material, comprising the steps of creating and providing the melt of thermoplastic polymer material, discharging the thermoplastic polymer material in multiple strands from a perforated plate, impinging the strands with an impinging flow fluid from an impinging flow nozzle, cooling the strands and dividing the strands up into individual granules, wherein the strands are only impinged by the impinging flow fluid as they are discharged from the perforated plate, and wherein, as it is discharged from the impinging flow nozzle, the impinging flow fluid has a temperature above the melting temperature of the polymer material and has a discharge rate in the range from 50 m/sec to 300 m/sec, and relates to a device for carrying out the method with an impinging flow device that can be pivoted by means of a pivoting joint. |
