| 摘要 |
<p>The invention provides a process and apparatus for manufacturing flat plastic net. Tubular plastic net is made by extruding plastic material through coaxial circular counter-rotating die members to form a net structure having a plurality of crossing strands. The anglar displacement of successive longitudinally-aligned junctions of the crossing strands is controlled, preferably by controlling the relative counter-rotation of the extrusion die members, and successive longitudinally aligned junctions are cut longitudinally within each junction. The tubular net so cut is opened out to form flat net. The flat net so produced, the edges of which are charaterized by successive longitudinal edge junctions, in which each edge junction is cut longitudinally within the junction, is particularly useful for fencing material, for example.</p> |
