SHAPEMON HSM
PRECISE INLINE SHAPE MEASUREMENTFOR HOT STRIP MILLS
During the rolling process for slabs and transfer bars inhot strip mills, the shape changes with every pass. In theroughing mill section the general shape is the main focus,
in the finishing mill section the focus is on the head andtail end camber as well as on central alignment of thestrip on the roller table during rolling. After rolling, thegeometrical dimensions of the hot band must correspondwith the target values. It is therefore essential to havegeometrical information about the rolled material during
the rolling process.
A tool to measure the shape of hot material on the roller
table between passes and between the mill stands isnecessary in order to evaluate the exact geometricalparameters of the product.

OUR SOLUTION
An optical sensor based on the self-radiation principle isinstalled safely above the roller table at a height where
it does not interfere with the rolling process or crane
movements. When the material passes through the field ofview, the sensor automatically detects the slab or transfer
bar and starts the measurement procedure. The results
are visualized and transferred to Level 1 and/or Level 2 foruse in rolling process optimization. This system is used forcamber and center line measurement at roughing mills andfinishing mills. Additionally, the head and tail end geometry
can be measured to support maximization of yield as wellas the speed of the material.

YOUR CHALLENGE
For process optimization and for quality purposes material
parameters must be measured and recorded. Strip
straightness must be optimized during the rolling process
and the geometry must be documented. Maintenanceefforts must be low, remote maintenance should bepossible and the tool must be easy to adjust and calibrate
in order to meet the requirements of the plant operator.
Despite a challenging environment with steam, water andscale, a high availability of shape measurement is also
required. In hot rolling mills, even good rolling models areoften limited in determination of accurate strip profiles andflatness. The camber (mainly at the roughing stand) andthe position of the strip between the finishing stands are
two important parameters for obtaining a high repeatabilityof the strip geometry. High temperatures and high speeds,in addition to the challenging environmental conditions
at the rolling mill, make it difficult to take accurate
measurements.

ShapeMon HSM sensor: simple and robust design

Robustness against harsh environment

Optional Mill Steering Expert

ShapeMon HSM constantly collects images of the slab ortransfer bar. Special predictive edge filtering algorithm
ensures reliable measurement even under the harshenvironment with the results calculated and available in realtime. The calculated values are:ADVANTAGES OF SHAPEMON HSM• Minimizing camber formation• Reduced scrap at head and tail end• Increasing productivity by prevention ofcoiling problems at HSM• Strip centerline deviation• Head end and tail end camber• Complete transfer bar shape (RM)
• Head and tail end geometry• Increase in throughput thanks to rolling
control optimization (avoidance of cobbles
in combination with Primetals Technologies
rolling model)• Automated threading process with no manualinteraction from operator• Width measurement• Speed measurement
ShapeMon HSM can also be supplied with the Primetals
Technology Mill Steering Expert for automatic rolling
process improvement with respect to geometriccharacteristics.
TECHNICAL DATA
• Sensor up to 2,400 x 2,000 pix• In HSM RM and FM: working distance 5-10m• In HSM RM and FM: field of view 2,5x2m• Up to 50 measurements per second

ShapeMon HSM operator view

• Temperature range > 700°C edge temperature

Primetals Technologies
Austria GmbHA joint venture of Mitsubishi Heavy
Industries and partners
Turmstrasse 44 | 4031 Linz | Austria
primetals.com
Order No. T04-4-N197-L2-P-V3-EN
Printed in Linz | © 2020

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