| 摘要 |
<p>The plastic is granulated in a bath at over 100[deg]C. A water bath is employed. Granules in an amorphous state are transformed into the crystallized state. The granules, produced in a granulator (1), are immediately treated for an interval causing crystallization, at a temperature exceeding 100[deg]C, preferably in a water bath. Temperatures over 100[deg]C are obtained in a pressurized vessel or system. The freshly-produced granules may be air-locked into the pressure vessel. They may be separated from water before introduction into the pressure vessel system. The product granules are cooled in a further vessel, under water at less than 100[deg]C. A conveying system introduces the granules into the pressurized vessel.</p> |
