| 摘要 |
<p>Dispersion section, suitable for rotatable incorporation into the barrel (4) of an extruder (2), of which the enveloping shell has the shape of a cylinder and in the external surface of said section at least a pair of spiral channels is present, consisting of an inlet channel (18) and an outlet channel (20), which are each bounded by a first (38) and a second flank (40), which channels each have an input end and an output end, the inlet channel (18) of each pair having an open input end and a closed output and the outlet channel (20) having an open output end and a closed input end. The section is characterised in that the first flank (38) is wider than the second (40) and fits with a first radial clearance (36) in the extruder barrel, and wherein the ratio of the length of the first flank (38) and the first radial clearance (36) is between 25 and 750.</p> |
