Increased demands on new materials and ever more complex components increasingly require higher process reliability. This also applies with regard to the oil coating for the forming process of steel and aluminium sheets. EMG SOLID® is a system for the up-to-date online measurement of oil deposits on running strips.
Especially in the automotive industry, the requirements for a uniform, defined lubricant application are becoming ever higher. EMG SOLID® offers a wide range of applications: from initial oiling in the rolling mill to the metal processor, for whom sufficient oiling during the shaping process or freedom from oil before painting measures are indispensable.
EMG SOLID® measures the oil layer within the production line online over the complete width and length and visualises it over the entire surface to be measured.
Our solution EMG SOLID® IR uses the technology of infrared spectroscopy. The system generates an infrared light that penetrates the oil layer, is reflected by the strip surface and penetrates the oil layer again. In the process, the intensity of specific wavelengths is attenuated by the oil layer: the thicker the oil layer, the less light is reflected.
EMG SOLID® IR then calculates the layer thickness of the oil layer according to Lambert-Beer's law.
Using laser-induced fluorescence spectroscopy, the system measures the weight per unit area of the oil layer and then visualises it over the entire surface of the material. A special solid-state laser delivers 10,000 individual pulses per second, robust and flexible quartz fibre bundles transmit the light energy to the measurement location.
Via a second quartz fibre bundle, a highly sensitive photomultiplier detects individual photons of the fluorescence signal. These are recorded by a counter system with time resolution in the nanosecond range and statistically evaluated. A microcontroller then controls the analysis system; it manages the system calibrations and calculates the results.
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"Our product family for online oil layer measurement EMG SOLID® is based on two technologies: Infrared Spectroscopy and Laser Induced Fluorescence Spectroscopy. The use of these two technologies puts EMG in a unique position to offer our customers the optimum solution for their requirements. We are happy to advise you, please contact us!"
Timo Gemmer, Product Manager
In the production of steel and aluminium strips, the increased demands on new materials and ever more complex components require an increasingly higher level of process reliability. With our innovative quality assurance systems for the cold rolling area, you can optimise your processes - and thus also your product quality. All EMG systems are based on the same hardware and software structure. Benefit from the use of our broad solution portfolio and reduce your TCO (Total Cost of Ownership).
EMG IMPOC is a well-proven magnetic-inductive measuring system for the automatic, non-destructive online determination of the mechanical properties tensile strength and yield strength of ferromagnetic steel strips.
In hot-dip galvanizing lines, the thickness of the zinc layer on the metal strip is adjusted with the aid of compressed air-driven blow-off nozzles - so-called air knives - directly above the zinc pot.
EMG SORM 3plus is the online measuring system for recording roughness parameters on running strips. Roughness characteristics are an important quality feature of uncoated and surface-finished strips.