|Shape||Section size [mm]||Internal diameter||External diameter||Height||Coil weight|
|Coil||Section size [mm]: 5 - 63 mm||Internal diameter: 900 mm||External diameter: 1.250 mm||Height: 600 - 2.400 mm||Coil weight: 1.250 - 3.000 kg|
Annealing [ machinability – globular ]
The QWR plant represents state-of-the-art technology for rolling wire rod. Nothing has been left to chance. Just think that it is fed with a 200 mm round section semi-product so that there are no edges, which are a known source of surface defects, and so that the reduction ratio is maximized. The presence of an oversized rougher and three shiftable inductors allows the rolling temperatures to be reduced to the advantage of the grain size while maintaining absolute temperature control. Water boxes are installed at the entrance of each of the three rolling blocks and at the exit of the last one to ensure optimal plastic deformation temperature and accurate profile control. The cooling conveyor, equipped with hoods and fans, allows the mechanical properties of the different steels to be modulated in a personalized way according to the customer’s requirements. Last, but not least, is the presence of the Danieli patented EDC system that simulates the patenting treatment without any environmental impact. A robust RFID tracking and redundancy system guarantees the absolute traceability of each coil. The line is completed by the automated warehouse equipped with Teflon-coated bays to guarantee zero-defect surfaces and the line of heat treatments in a controlled atmosphere for machinability or globular annealing.