| 摘要 |
A kneader for kneading a synthetic resin and an organic or inorganic powder. Advantageously, this kneader is low in heat energy loss, simple and inexpensive, and adapted for using in combination with an extruder or injection molding machine. The kneader has a single screw (6) arranged in a cylinder (2), in which cylinder are provided a feed preheating zone, a plasticizing and kneading zone, a degassing zone and a metering zone, these zones being successively arranged in the above-mentioned order from a stock charging port side. In the kneading zone, the screw (6) is provided with flights which are designed such that grooves (16) between the adjacent flights are gradually decreased in depth backwards with respect to a rotational direction (R), and the cylinder (2) is formed on its inner surface with axially-extending recesses (12) which correspond to the grooves (16). The thus designed kneading zone contributes to effectuate high compression, cut and shearing of the stock. |
