Talleres Y Acero S A de CV contracted Danieli to supply a new wire-rod mill at its Orizaba steel works, alongside the existing bar mill and steelmaking plant. The new mill will have a capacity for 300,000 tons per year of 5.5 to 16 mm diameter low carbon, medium carbon and low alloy wire rod in coils weighing up to 1.5 metric tons. The new Talleres Y Acero line will start in the second half of 2006.
The line will be arranged as 14 housing-less roughing and intermediate stands in a horizontal vertical sequence, plus a 10 pass twist free DWB high speed finishing block. This will be followed by a DSC controlled cooling line and wire rod coil forming and finishing facilities. The supply also includes the associated electrical and automation systems, a water-treatment plant, compressed-air system, and roll turning shop, etc.
In a separate project, Siderurgica Tultitlan SA de CV Sidertul placed an order with Danieli for a complete rebuild of its steelmaking facilities to increase billet production from 350,000 to 600,000 tons per year. The project includes also a rolling mill upgrade. The modifications to the melt shop and billet caster are planned to match the market’s raw material availability and produce commercial-grade billets.
The plans include replacing the electric furnace with a new 60-metric ton Danarc EAF, completely revamping and modernizing the existing three-strand with new tundish, tundish car, molds, oscillating tables, secondary cooling system, and withdrawal/straightening units. And, the new design will allow later addition of a fourth strand, new primary and secondary fume dust collection systems, Auxiliary systems, including a new water-treatment plant and all electrical, automation, and process control system. A new ladle furnace is expected in a later stage of the project.
Their existing rolling mill, originally supplied by Danieli in early 1990s, will be modernized by extending the cooling bed and installing a new CCL system comprising of multi strand straightener and pendulum type cold shear, to keep up with the mill’s production capability and improve finished product quality. New bending machines for bar bundles will also be installed too. Danieli Automation will install new process controls, up to Level 2. The redesigned mill will produce bars and profiles in smaller sizes at up to 75 tons per hour.
