Can a conventional heated screw and barrel type machine be used for moulding?

This has been accomplished a few times and unsuccessfully a lot of times. Technomelt® has very low viscosity at the correct processing temperatures compared to engineering plastics. This low viscosity can cause the material to bleed backwards through the screw and essentially glue it together. Moldman® machines use positive displacement gear pumps designed for lower viscosity fluids to inject the molten material into the cavities.

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