STEP project: Microwave Technology for Stone Eco-Efficient Production

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The production chain in natural stone factories involves a drying stage in natural gas kilns, followed by the application of reinforcement resins to seal cracks or fractures, and finally a curing stage to harden the resins in natural gas furnaces.

These are the 2 eco-innovations achieved thanks to the STEP Project:

  • The industrial scale validation of a new microwave on-line processing system for rapid and continuous curing resin reinforcement of flat semi finished natural stone products, replacing conventional thermal systems based on natural gas and electric support elements.
  • Validation of water-based eco-resins based on nano-composites with zero emission of volatile organic compounds.

DIMAS participated in the project with the development of the new on-line open system for continuous marble drying and resin curing process with microwave energy.

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Logo_EC_ECO_InnovationThe implementation of this development results in significant benefits for the natural stone sector in terms of efficiency, productivity and utilization of raw materials, as well as in health and safety aspects for employees of the production lines.

Paper at the European Microwave Week

Dimas group participated in the European Microwave Week that was held in Nuremberg in October 2017, with the paper entitled “Analysis of an Overmoded Re-Entrant Cavity“. It was authored by David Marques-Villarroya, Felipe Penaranda-Foix, Beatriz Garcia-Banos, Jose Manuel Catala-Civera, Jose Daniel Gutierrez-Cano.

The paper deals with the well knows reentrant cavity, but taking into account the complete set of modes and presenting a chart to fully charaterize the cavity. It is based on the Circuit Analisys Method, being developed in the Microwave Division of ITACA Research Institute since some years ago.

The paper was selected for a short video presentation that can be found here and also in this YouTube link: