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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 19a
SUMMARY:Improving quality and performance of billet caster with optical inspection system
DESCRIPTION:For more than one and a half years ShapeMon Billet Bloom is installed now at Stahl- und Walzwerk Marienhütte GmbH in Graz. The system inspects their two lines of billet production. While the starting focus was on reliable length measurement and weight calculation, the modular design of the system with laser line projection, and cameras for evaluation of laser line and surface, shows more and more tasks, that can be fulfilled by the measurement device.
With the high data acquisition frequency strand jerking is detected by the system and a warning is generated in case of excessive jerking. It indicated that the mold taper does not fit to main parameters like casting speed, oil or powder used for lubrication. At best the jerking detection can help to prevent sticker breakouts.
The second use case for quality inspection via data analysis of the system, is the detection of surface cracks. With image analysis it is possible to detect longitudinal as well as transverse cracks, classified into two categories. Severe ones that may cause breakouts while being straightened and smaller ones that reduce the quality of billets and may create problems in the rolling process. Also, when cracks are detected, alarms are generated to inform operators and assist them in deciding on appropriate actions such as adjusting casting speed, water flows, etc.
Marienhütte was able to reduce breakout rates by approximately 80% and transverse crack surface defects close to zero with this system installed at the billet caster.

CLASS:PUBLIC
DTSTART:20230615T140000
DTEND:20230615T142000
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