| 摘要 |
<p>The invention relates to an extrusion nozzle comprising at least one core ( 21 - 25 ). Said extrusion nozzle is also provided with a plurality of flow channels ( 11 - 19 ) for melt streams, said channels merging inside the extrusion nozzle to form the desired profiled element. The inventive extrusion nozzle consists of a plurality of plates ( 1 - 7 ). The flow channels ( 11 - 19 ) are separated from each other for all plates comprising at least one core ( 3 - 7 ), with the exception of the last plate ( 7 ), such that the at least one core ( 21 - 25 ) is connected to the remaining plate by the connecting elements ( 34 - 38 ) between the flow channels ( 11 - 20 ). When the flow channels ( 11 - 19 ) in the last plate ( 7 ) are continuously interconnected, the at least one core ( 21 - 25 ) of the last plate ( 7 ) is screwed onto the corresponding core or cores of the adjacent plate ( 6 ). When the flow channels ( 11 - 19 ) in the last plate ( 7 ) are interconnected only over part of the height thereof, the at least one core ( 21 - 25 ) of the last plate ( 7 ) is connected to the remaining plate ( 7 ) by means of the remaining connecting elements.</p> |
