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For more than 60 years, little has changed in the processing of particle foams. Since then, the beads have been fusioned with steam, which requires complex installations.

The Kurtz WAVE FOAMER uses a steam-free process to remove previous restrictions. In brief: The foam beads are heated by excitation by means of high voltage in the form of radio waves. An alternating dielectric field causes polar molecule chains to oscillate – the resulting friction generates heat. Polar additives are added to work with a non-polar material.

The technology is suitable for new materials with process temperatures of up to 250 °C (= vapor pressure of 40 bar). Fusioning takes place from inside to outside. This makes it possible to process very compact compression processes and recyclates.

Applications for materials such as PET and polycarbonate are within reach in electromobility or aviation, since they meet high requirements for fire protection and temperature resistance.

Further reading

Exhibitor: Kurtz GmbH


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