When manufacturing profiles (with hollow chamber structures), the design of the vacuum calibrations and the post-cooling represents a challenge. The number of calibrations, the geometry, the materials and coatings used, the vacuum control, the temperature control and much more must be optimally tailored to the product, the material and the […]
SHS_Extrusion_Training
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When producing profiles and tubes with internal hollow chamber structures, so-called supporting air is often used. Here, a volume of air is blown through the die into the interior of the hollow chambers or lumens so that they do not collapse. The outer surfaces of the extrudates are usually drawn […]
In the field of material feeding to an extruder, there are a variety of different systems on the market. Starting from a central conveyor system or individual vacuum conveyors, the plastic granulate is stored in the simplest case only in a small storage tank – the hopper – so that […]