Impurities and defects in Rockwool insulation can now be detected already during production by using an X-ray machine which scans the material for traces of adhesive or stone. To ensure that the results are accurate, approximately 4000 different values per second must be analyzed using an algorithm and a program that identify areas with impurities.
DTU Informatics (Informatics and Mathematical Modeling) has contributed to this work. Rockwool has previously tried similar methods but without success. "This time we had the right organization of the project and the right partners. We do not have a chance to generate the specialized knowledge that is required. So we have benefited greatly from the competencies and knowledge offered by DTU in developing the machine that is being implemented in our factories, "says Thomas Heldgaard, Development Director at Rockwool International.