Performance assessment for automatic surface inspection systems

CheckSIS – Performance assessment for automatic surface inspection systems

Initial situation

  • In modern steel production, automatic surface inspection systems (ASIS) are commonly used to detect and classify surface defects on strip steel
  • To “measure” the quality of a steel surface in the sense of measurement engineering is still an unsolved problem

Working topics:

  • Implementation of methods for the periodic online assessment of correct ASIS calibration and detection of decreasing system performance by means of artificial defects
  • Determination of methods for precise position synchronization of surface defect data provided by two ASIS installed at the same line and creation of more reliable surface defect data by online combination of the results
  • Definition of a first official standard for ASIS calibration and supervision procedures

Results:

  • Proven long-term reliability of ASIS and guaranteed minimum performance for detection and classification of surface critical defects
  • More comparable results of different ASIS considering different detection sensitivities
  • Improved repeatability (same coil same ASIS) and reproducibility (same coil different ASIS) of ASIS results

Siehe auch

CoolCut – Entwicklung einer innovativen industriellen Schneidtechnik für hochverschleißendes Bahnenmaterial

Situation: Hohe tribologische Beanspruchungen von Kreismessern führen zu einem sehr hohen Verschleiß. Verschleiß der Messer erfolgt durch unterschiedliche Mechanismen, abhängig […]

Presed – Predictive Sensor Data mining

Initial situation: Some steelworks experiences problems with product deficiencies like slivers and cracks. Several pre-studies indicated a relationship between the time […]

INCERV – Keramische Heißgasventilatoren

Ausgangssituation: Einsatz metallischer Ventilatoren aufgrund hoher Temperaturwerte in Industrieöfen nur begrenzt möglich. Aufgrund der Kriechverformung muss die Drehzahl metallischer Ventilatoren […]

OptiBlaFIns – Analysis of blast furnace hearth state

Initial situation: bad hearth condition influences energy consumption, operational stability, hot metal quality and productivity. from earlier research projects offline […]