Yukon and Danieli Collaborate on Infinite Rolling Technology

Using Danieli QSP-DUE technology, Yukon enjoys the greatest production flexibility thanks to three operating modes—infinite rolling, semi-infinite rolling, and coil-to-coil—which guarantee the widest range of steel grades and thicknesses. Danieli's patented DySen casting machine recently set record casting figures: 145 mm thick sheets were consistently produced, a significant achievement for molds. 165 mm thick sheets were also tested. Infinite rolling was achieved, with the minimum design thickness of 0.8 mm for the strip being reached during the first seven campaigns of infinite production. The coils demonstrated excellent surface quality, precise geometric dimensions, uniform microstructure, and properties. This followed the production of 25 mm thicknesses on the same line, a feat unique in the world. The QSP-DUE plant, operated by Yukon, is powered by advanced, user-friendly control systems from Danieli Automation and features two casting lines and continuous casting and rolling processes on a single line. Its annual production capacity exceeds 4.5 million tons of hot-rolled strip, the highest in the world for a direct casting and rolling plant. The plant is designed to produce strips with thicknesses ranging from 0.8 to 25 mm in low-carbon, medium-carbon, HSLA, and high-alloy medium-carbon steels. The plant holds more than 50 Danieli patents.