SIROLL^CIS SIAS

The challenge:

With outstanding quality requirements from their customers and an increased competitive environment that imposes to do more with less, traditional surface quality control practices (visual inspection) are now inappropriate for steel makers. The challenge is to replace human experts with automatic systems capable of performing constant, round-the-clock surface inspection. The reliability of these systems is critical: they should guarantee that no critical defect will go undetected, but without generating many false alarms that make the system unusable.
Another challenge is to perform inspection at locations where it was previously unfeasible due to many obstacles (speed, temperature, environment). This is for example the case at the hot strip mill, where stakes for early defect detection are enormous: avoiding "defect crisis" by early identification of the defects origin (e.g. roll change); early removal of defective product from the production stream without adding further value; yield reduction due to "traditional" quality control practices (wrap, re-inspection); faster feed-back to upstream plants (e.g. caster).

Our solution:

The SIAS system was specifically designed for on-line surface quality monitoring of metals, detecting and classifying the following defects:

• area defects e.g. rolled-in scale, dross
• periodic defects e.g. roll marks, dents
• individual defects e.g. blisters, slivers, laminations, scratches

The results are available in real-time in order to take immediate decisions that ensure:

• cost optimization
• productivity increases
• final user satisfaction

The SIROLL^CIS SIAS solution is the result of 15 years of focused development and continuous improvement. Our exclusive on-line sensor arrangement, the dual HMI design elaborated together with end-users, an open database structure for results storage and user-friendly administration tools are some of the advantages of the SIAS technology.

SIROLL^CIS SIAS systems are successfully operating on the following applications:

• Hot Mills
• Pickling Lines
• Cold Mills
• Continuous Annealing Lines
• Continuous Galvanizing Lines / Electrolytic Galvanizing Lines
• Electrolytic Tinning Line
• Continuous Coating Lines
• Stainless Steel Lines

Good reasons for SIROLL^CIS SIAS:

• Quick and Simple Set-up
• Increased productivity throughout the plant
• Elimination of defect crisis and prevention of downstream damages
• Improved process control and feed-back/feed-forward capacity
• Perfect Knowledge of the delivered products
• Customer satisfaction
• Product flow optimization