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, Blue Laser sensors measure the rod centre at material speeds of up to 10 m/s. The optoNCDT1750-750BL is equipped with the patented Blue Laser Technology and measures reliably on glowing objects. Special optical filters block out the intrinsic radiation of the glowing target. Thanks to the large measuring range, different geometries of the rolled products can be reliably detected with only one sensor.

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