| 摘要 |
<p>A mixing and kneading apparatus for granulate, esp. an extruder-type machine for PVC or other plastics, comprises a supply screw and a mixing screw which revolves and also moves axially, the barrel for the mixing screw is lined with sintered metal. This lining is connected externally to a vacuum source, for degassing during mixing or alternatively to a pressurised source, for introducing additives.</p> |
