thyssenkrupp Rasselstein GmbH is Germany’s only manufacturer of tin plate. At the largest production site for packaging steel worldwide, it produces super-thin tin-plated or special chrome-plated strip in Andernach for, for example, food cans or aerosol packaging.
Rasselstein GmbH attaches a great deal of importance to the quality of the products of thyssenkrupp Rasselstein GmbH. Perfect quality control is no longer possible today without precise and reliable online measuring Systems.
Staudt mainly monitors the continuous annealing furnaces 3-5. Furnace 3 gave cause for concern at the beginning of this year. The two thickness meters at the uncoiler of the continuous annealing furnace no. 3 had performed duty reliably for 37 years. Staudt: “They had become a little old in the meantime.” These thickness meters stemmed originally from Hartmann & Braun AG, the predecessors of IMS Messsysteme GmbH, and the last adjustments were made by the technicians from Heiligenhaus in 1981.
In February 2016 IMS delivered a new measuring system to the tin-plate manufacturers in Andernach, especially adapted to their space requirements. The two new isotope thickness gauges in the two levels of the uncoiler at the continuous annealing furnace no. 3 were integrated in a new E-frame. “For IMS that was no problem,” says Staudt in surprise.
Before installation of the modern thickness meters the technicians of thyssenkrupp had the possibility to convince themselves in the test bay at IMS in Heiligenhaus of how the measuring system would later work. To top it all, IMS finished installation and commissioning in Andernach one day earlier than planned. “You have to go a long way to find such service,” says Staudt in his admiration of the new measuring System.
The Long Road From Mechanical Relay to Highly Modern Measuring System
The continuous annealing furnace was built back in the 1970s and was the first of its kind in Europe at the time. Elmar Staudt remembers: “We did not want to give our customers the first forty to fifty metres of a coil because they did not meet our requirements. With the help of the isotope thickness meter at the uncoiler, we were then able to monitor our thickness tolerances.”