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The Romanian manufacturer of electrical steel ERDEMIR Romania ordered three layer coating thickness gauges to optimize the overall process of their insulation coating process. The system was successfully tested and commissioned. Thickness measuring technology from MESACON® Messelektronik is already installed successfully in a four-high Quarto Mill for more than 10 years.

OLYMPUS DIGITAL CAMERA

F2800 Layer Thickness Gauge

The measuring task requires a highly constant coating over the whole width and length of the material to be produced. Laminated cores based on electrical steel (silicon steel) are used for transformers or rotors and stators of electrical motors. The coating with an insulation varnish is necessary to increase the electrical resistance, the eddy current resistance and also to protect the base material of the cores against corrosion.

The coating process is done in a continuous process. The thickness of the insulation layer is very important for the quality of the core. Variations in the coating thickness of the material can be drastically reduced with the MESACON® F2800 layer thickness measuring system.

Based on the beta backscatter principle the F2800EL-system has the capability to measure reliable very thin layers down to less than 0.5µm for the full production portfolio of the customer.

Author: Martin Kuss

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