Metal production and processing

Intelligent sensors are required in production, processing, conveyance and storage of metallic materials. There, sensors enable efficient and safe production and later failure-free processing. Micro-Epsilon has expertise and know-how in a wide range of applications: in the positioning of cranes, machine parts and materials, in the monitoring of the thickness of metal strips and slabs to the profile measurement of pressed moldings.

Steel production

Molten iron and steel - temperature measurement

Temperature is an important process variable in iron and steel production. Adhering to predetermined process temperatures ensures, amongst other things, high product quality. Providing reliable and reproducible ...

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Tempering - temperature measurement

In induction hardening, stresses can occur which can be counteracted by reheating to tempering temperature. For non-contact temperature measurements from a safe distance, Micro-Epsilon pyrometers are used. These are adapted to the wavelengths of the glowing measuring objects.

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Temperature measurement of molten metal

Temperature monitoring of liquid metal is important to maintain the corresponding process temperature during casting. With the thermoIMAGER TIM M05 camera, Micro-Epsilon offers the right spectral range as well as a continuous measuring range of from 900 °C to 2000 °C.

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Hot rolling of flat products

Thickness measurement of slabs during rough rolling

In order to monitor the slab thickness during the first rolling processes, laser distance sensors are used which measure from above onto the rolled material. Due to the high temperatures, steam and emulsions, ...

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Optical thickness measurement in rolling mills

The new generation of thicknessCONTROL thickness gauges stands for exceptional performance and overcomes the challenges of one of the most difficult applications for optical thickness measurements. The ...

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Temperature measurement in the hot rolling mill

In the rolling line, the forming temperature between the individual rolls is measured continuously. Micro-Epsilon's non-contact infrared pyrometers measure with a short response time and from a safe distance.

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Hot rolling of long products

Aluminum thickness

When manufacturing aluminum plates, it is important to keep the plate thickness constant. Micro-Epsilon offers geometrically measuring systems for the determination of thickness and width for cold and hot rolling mills. The distance and profile sensors used operate independently of material or alloy.

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Testing the longitudinal profile of forming bars

In section rolling mills, shaped steels are usually rolled in reversing operation. After the hot rolled bars (up to 1200 °C) have left the rolling stand, they are checked for dimensional accuracy. Here, ...

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Molding rollers for long products

Measurement of the diameter of profiles

Optical micrometers from Micro-Epsilon are used to monitor the thickness of metal bars. With the X-Frame measuring system the diameter is measured continuously. Two laser micrometers measure the diameter ...

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Gap measurement in forming lines

Before welding pipes, the gap is monitored with laser scanners. The scanners provide precise readings, allowing the position of the center point to be output. In this way, the pipe is brought into the ...

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Temperature measurement at the continuous casting plant

As efficiency increases, so does the stress on continuous casting equipment. This requires extensive process monitoring measures. For temperature measurement in continuous casting plants, ratio pyrometers ...

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Cold rolling of flat products

Coil diameter

The optical optoNCDT ILR length sensor continuously measures the surface of the coil and detects the diameter. By unwinding, the diameter of the coil is reduced, which is detected based on the increasing distance between the coil surface and the sensor.

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Optical thickness gauges for flat products

thicknessCONTROL MTS 8202 systems are used for process-reliable thickness measurement in cold rolling mills. Measurements are also possible on reflective and shiny surfaces, e.g., copper strip, coated ...

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Coating lines

Distance control of air scraper nozzles in galvanizing lines

For corrosion protection, a protective layer of zinc is applied to the metal strip. To do this, the steel strip is passed through a zinc basin, which causes a thin layer of zinc to adhere. The applied ...

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Measurement of the zinc strip color in the production plant

In the production of high-quality material strips and boards made out of titanium zinc, the surfaces receive specific treatment. Therefore, the coloring of the zinc products is already determined during the production process.

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Coating thickness measurement with two synchronized thickness measurements

Two synchronized thicknessGAUGE systems are used for precise thickness measurement in coating processes. One system records the strip thickness before coating and one system monitors the thickness after ...

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Service centers & Shearing lines

Coil unwinding

In the metal industry, rolled strips are reeled for transportation on coils. In the further processing when coils are unreeled, it is important to know how much material has already been unwound. This task can be easily solved by using an optical optoNCDT ILR length sensor.

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Coil edge

Directly before and after the coil it is important to inspect the position and the edge condition of the metal strip. This task can be easily solved using optical optoCONTROL micrometers. If the edge of the coil is within the measuring range during winding or unwinding, the position or the edge structure can be determined from this.

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Thickness measurement of metal strips

When measuring the thickness of metal strips, optical methods based on laser triangulation have numerous advantages compared with other methods. They measure without contact and therefore without wear. Moreover, independently of the condition of the material it is possible to carry out an exact geometrical measurement in relation to the strip surface.

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Measuring system for thickness and width measurements of metal strips

thicknessCONTROL MWS 8201.LLT combines thickness and width measurements in one O-frame system equipped with three laser line sensors. Two sensors are integrated in the upper belt and one sensor in the ...

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Measurement of width, cambering and diameter of metal strips

thicknessCONTROL C-frame systems are used for the precise determination of width, cambering and diameter of metal strips in shearing lines. These are equipped with three laser micrometers and detect the ...

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Strip width when trimming metal strips

Since it is often necessary to trim the strips after the rolling process when producing metal strips in different widths, the two knives can be moved electrically. To maintain the nominal dimension, the distance is measured by differential measurement with laser sensors from Micro-Epsilon. Two optoNCDT sensors are used for this purpose.

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Burr measurement in slitting lines

The cutting process causes burrs to form on the cut surfaces of the metal strips. For inline monitoring of the burr, scanCONTROL laser scanners are used, which permanently monitor the sheet edges. Thanks ...

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Predictive maintenance & Quality assurance

Measuring the thinnest of coatings

The ISC1000 is a high performance instrument for measuring the thickness of coatings such as paint or plastic. It is used in process control through to final quality inspection. Its innovative technology ...

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Measurement of roll wear in the roll stand via the bearing gap

Capacitive displacement sensors are used to determine the wear of rollers. The roll wear is measured indirectly via the change in the bearing gap of the drive shaft. Thanks to the capacitive sensors, the ...

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Roller clearance

In rolling operations of metals, plastics or other materials, the distance between the two rollers to one another or between the roller and the bearing surface is the decisive measure. For sensitive processes and high material accuracies, it is important to constantly check the gap so that possible waste is avoided. For this purpose, inductive contacting or non-contacting methods are suitable.

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Welding inspection

3D scan of components before laser cladding

The components are first detected by a scanCONTROL laser scanner. If required by the component geometry, this is done from several directions. Regardless of the reflection properties of the material, the ...

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3D measurement of components prior to plasma cutting

In order to process these huge domes quickly, fully automatically and at extreme precision, it is necessary to determine their shape and exact position within the production line. As the pure CAD data of the dome often differs by several centimeters from the actual dimensions, the 3D profile of the covers is measured before processing using scanCONTROL 2900 laser scanners.

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Weld seam tracking for pipeline inspection

In pipelines, defective welds are often the reason for a leak. Therefore, the scanCONTROL profile scanner checks the seams on the outside after welding. After manual alignment, the scanner automatically inspects the weld, centering itself on the pipe.

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Weld seam inspection on pipes

For pipes, a perfect weld is essential for tightness. In spiral welding, scanCONTROL laser scanners are therefore used to align the welding flanks. This enables a significantly more reliable welding process.

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Weld seam profile

When joining metals, welding robots are often used to automate the joining process of the metals. In the case of visible components, the weld seam must meet certain visual criteria; for example, no weld beads may remain. For this purpose, a laser scanner is installed directly after the welding head. It measures all drawn welds and, if necessary, prompts the robot to make corrections.

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Machine control

Double sheet detection before pressing

Before shaped sheets are fed into the press, laser-optical displacement sensors are used, which enable double sheet detection. Two sensors are mounted above and below the continuous sheets and provide a thickness value regardless of the exact position of the sheets.

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Diameter measurement of coils

optoNCDT ILR2250-100 laser distance sensors from Micro-Epsilon measure the coils based on the phase comparison method. For this measurement task, a sensor is mounted at a distance of 0.2 to 10 m facing ...

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Monitoring metal sheet infeed during the pressing process

The measurement of the distortion is carried out using several optoNCDT 1420 laser triangulation sensors, which are placed around the metal sheet, either in the tool or on the side of the tool. The arrangement is chosen in such a way that the laser beam measures on the edges of the sheet, which is between the top and bottom of the tool.

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Monitoring mold deformations in aluminum die-casting

Monitoring tool deformation using inductive sensors based on eddy current enables high product quality combined with improved tool life and reduced rework. Usually, three to four eddyNCDT 3005 eddy current systems are used to ensure consistent gap monitoring.

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Quality assurance

Bending/smoothness of aluminum cast covers

After casting aluminum lids and before milling the sealing surfaces, the lids must be manually straightened and sorted according to OK/NOK. The previously used measuring probes are subject to very high wear and had to be replaced frequently. To minimize the cost of spare parts, the customer opted for the non-contact, wear-free eddy current measuring system.

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Aluminum rim dimension

When producing aluminum rims, highest quality is required so that smooth running is achieved in later use. For this purpose scanCONTROL laser scanners are used.

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Diameter monitoring on seamless rolled rings

optoNCDT ILR2250-100 laser distance sensors from Micro-Epsilon are used for this measurement task. They operate on the phase comparison method, which provides reliable results even on red-hot glowing measuring ...

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Measuring and inspecting laser welding seams

In the case of fully automatic welding systems, quality control in the form of a 100% inspection is indispensable in order to achieve defect-free weld seams. Laser profile sensors from Micro-Epsilon monitor the weld seam and immediately detect defects as well as the completeness of the width and height profile of the weld.

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Micro-Epsilon Messtechnik
Königbacher Str. 15
94496 Ortenburg, Germany
+49 8542 / 168 - 0
+49 8542 / 168 - 90