SCIENCEGATE

Cold mills

Thickness measurement for control and quality inspection is at many positions and so is an important element in the process landscape of cold rolling mills. Common places of application for systems detecting the center thickness or the cross profile are tandem lines and film stands.

Based on confocal sensor technology or laser line triangulation, Micro-Epsilon offers high-precision thickness measuring systems with the thicknessCONTROL MTS 8201/8202 series, which operate with high precision in the submicrometer range.

Measurement of inner and total thickness of checker plate with thicknessCONTROL MTS 8202.LLT C-frame systems

One application that can only be solved with laser line technology is the measurement of the inner and total thickness of checker plate. Since the laser line covers a significant portion of the pattern, its maximum and minimum can be reliably detected. In addition, the variants of the thicknessCONTROL MTS 8201/8202 series, in which laser line technology is used, demonstrate their advantages especially under the harshest environmental conditions:

•  Reliable measurement despite steam and emulsion, additional air purge can be integrated
•  Precise with a wide range of surface conditions
•  Large measuring range of 60 mm with high precision +/-2 µ
•  Calibration within seconds, integrated calibration to compensate for thermal effects
•  Material widths up to 2500 mm with C-frame and 3000 mm with O-frame

Hot mill

Typical applications in aluminum hot strip mills are the measurement of the thickness profile behind the roughing stand, the center thickness before the reversing finishing stand and finally after the reversing finishing stand the width, the thickness as well as the thickness profile with wedge shape and crown. For these measurement tasks, Micro-Epsilon offers thicknessCONTROL MTS 9201.LLT optical thickness measuring systems in O-frame design and the thicknessCONTROL MTS 9202.LLT in C-frame design. These systems impress with their high precision even across wide thickness variances, as well as their robust design to meet the challenging conditions found in hot rolling environments.

Thickness measurement in the hot rolling mill with thicknessCONTROL MTS 9202.LLT C-frame system and thicknessCONTROL MTS 9201.LLT O-frame system

The advantages of thicknessCONTROL MTS 9202.LLT come into their own especially with high thickness targets or large variations in thickness during the rolling process.

•  Suitable for material thicknesses from 400 mm to 1 mm
•  Thickness or thickness profile measurement, selectable by software
•  Integrated calibration to compensate for thermal effects
•  Excellent ratio of measuring range to precision
•  Optional integration of air purge for steam and emulsion

Aluminum

The demand for aluminum is constantly increasing due to its special technical properties. It can be made thinner and thinner as the strength increases. This is accompanied by tight manufacturing tolerances, which require measurement technology with more precision.

As a manufacturer of measuring systems for the aluminum industry, Micro-Epsilon offers a comprehensive portfolio based on optical sensors without radioactivity that ensures More Precision in applications regardless of complexity and material properties. Optimized sensor technology tailored to the respective application, innovative mechanical design, as well as cooling and protection devices enable the systems to meet the needs of the processes.

The high-performance signal processing and analysis software makes the systems the leading optical gauges on the market which detect the following parameters:

•  Thickness
•  Thickness profile, wedge and crown
•  Temperature and temperature cross profile
•  Width
•  Cambering

Service is the basis for a long-term partnership. We provide 24/7 maintenance and service with qualified staff. Support is initially provided via hotline and remote maintenance. This means that the majority of faults can be identified quickly and rectified cost-effectively.

In addition, our team is quickly on site from our service hubs to establish reliable operation of the systems.

Aluminium

Hot mills

Cold mills

Heavy plates

Long products

Service centers and cutting lines

In cutting lines such as slitting shears and cut-to-length shears, final quality control of the material to be supplied is an advantage. In addition to deciding whether the cut sheet or cut ring meets the requirements, the measuring systems from Micro-Epsilon also allow complete documentation and logging of the production. For measurements in front of the knife, the powerful software enables the evaluation and documentation of the individual strips.

One of the advantages of the C- and O-frame measuring systems of the thicknessCONTROL MTS 8201/8202 series becomes particularly clear in this area. The high lateral resolution of discrete laser lines enables both thickness measurements as well as width and cambering detection.

Thickness measurement and measurement of width and cambering with the thicknessCONTROL MTS 8202 C-frame system

Thanks to Micro-Epsilon's broad sensor portfolio, the thickness measuring systems can be customized for further measurement tasks or to compensate for influences on the mechanics due to temperature or mounting tolerances.

•  Patented compensation of angular errors of the sensor system to the material
•  Measurement of cambering with integrated optical micrometers
•  Material widths up to 1000 mm with C-frame and 3000 mm with O-frame
•  Independent of surface, material and alloy
•  Synchronized calibration for all measured variables in seconds