EUROPEAN STEEL TECHNOLOGY AND APPLICATION DAYS 2017 - ESTAD 2017

For flat steel production, the surface quality and the knowledge of surface defects is crucial to deliver a high quality product to the customer. Therefore, since end of 1990th as the first commercial systems came up, automatic surface inspection systems (ASIS) have been established as tightly integrated tool for surface quality supervision and the data provided by the systems are now more than ever basis for quality decisions as these systems provide objective online recognition and documentation of surface defects on a 24/7-base. However, even today no one in the world can precisely quantify ASIS performance for the whole running production as in contrast to common measuring systems where the accuracy of the measurement is well-defined, it is almost impossible for the user to determine comparable quantities for an ASIS. In the European RFCS project “CHECKSIS” methods are developed to enable the automatic verification of the performance of a Surface Inspection System. For this purpose, two approaches of external ASIS supervision are followed: periodical application of well-defined artificial defects for automatic system accuracy check and online synchronization with preceding ASIS results for instant verification of ASIS classification results. This project is a collaboration between BFI (coordinator), tkSE, voestalpine, tkPS and Tata Steel. In the presentation the need and aim of this development, first results and further progress will be discussed.