HOT ROLLING LONG

STATE OF THE ART SOLUTIONS:
FOR BAR, ROD, SECTIONS, AND RAILS

Unisons International has a complete portfolio of solutions for bar, wire rod, section and rail, and non-ferrous mills.
Today's demands for flexible and economic production of long products can only be met by the production process, electrical and automation solutions that are based on precise process modeling, high-performance control systems, and an in-depth understanding of long product rolling technology. Drawing on more than a century of experience and proven solutions, Unisons have the answers to complex and
diverse market demands – from the smallest upgrade to the greatest technical challenges for high-speed and special steel grade products. With our world-class equipment, processes, and design tools, we set benchmarks for rolling long products. We offer worldwide proven and extensively preconfigured solutions, including modular standard packages as well as global and intelligent service concepts for the entire equipment lifecycle.

 


 

BAR MILL:
BAR MILL SOLUTIONS ENSURE HIGH DURABILITY AND MAXIMUM AVAILABILITY

All components from Unisons are designed for high durability and maximum uptime during the operation of the bar mill. From the high productivity of rebars and merchant bars to the best tolerance and quality for special and high-alloy grades, the high quality of the components, as well as a reliable supply of spare parts, ensure that we meet or exceed our customers’ expectations.
Head-to-tail welding of billet increases the material yield. Reversing breakdown mills and flexible roughing mills offer automatic operation in a compact installation. Multi-slit and high-speed technologies ensure that the requirements of high productivity of rebars are safely and efficiently guaranteed. Through bar-in-coil operation by V+ coilers, compact and twist-free coils of bars and convex
shapes are produced. State-of-the-art cooling technologies are available, to control distortion of merchant bars, for thermo-mechanical rolling, and for quenching & tempering both carbon and alloy steels, including stainless. The 2+4 EVO reducing and sizing mill further improves the dimensional accuracy of SBQ bars and better controls the metallurgical structure.

 

ROD MILL EQUIPMENT:
THE MOST RELIABLE AND INNOVATIVE TECHNOLOGY FROM A SINGLE SOURCE

Speed, reliability, and process flexibility are key to productive rod rolling operations -- for high volume small sizes, maximum uptime, and multiple sizes/grades with quality tolerances, metallurgical, and surface properties.
As long rolling’s technology pioneers, Unisons apply knowledge and experience to supply your ferrous and non-ferrous mill’s best solution. The leading provider of efficient wire rod mill technology controlled cooling systems and thermomechanical rolling, we offer finishing blocks plus our High-Speed Trim Shear and
High-Speed Laying Head to roll reliably at high speeds for superior coil packages. For more difficult steel grades, our versatile Stelmor conveyor system creates a wide range of cooling conditions. Our coil reforming, handling, and compacting systems deliver the highest quality coil for demanding markets.

 

SECTION MILL:
STATE OF THE ART TECHNOLOGIES AND PROCESSES FOR MODERN SECTION AND RAIL MILLS

Unisons offer a portfolio of solutions for light, medium and heavy sections, and rail. Advanced answers for an array of applications, from construction and building to railways for high-speed and heavy-haul applications exist.
Universal stands provide precise deformation with a rigid and compact structure. 3+1 tandem mills increase yearly productivity in a small space for installation. Change-over times are reduced to a minimum by automated change systems. Reversing flat rolling blocks enable the production of a large range of flat bars, without the need for any roll change. Horizontal and vertical straightening systems remove deformations caused by asymmetrical cooling effects.
Stacking systems provide adjustable and flexible operations to handle different lengths. Inline cooling technologies improve the mechanical characteristics of medium-large sections and reduce their residual stresses, without expensive alloying elements. The idRHa+ inline and flexible rail hardening system applies defined cooling protocols to obtain the controlled microstructure and hardness distribution required for premium rails.

 

ENDLESS ROLLING:

The cutting-edge technologies and processes for efficient rolling of long products.
Endless rolling of long products via direct rolling linked to the caster or welding billet head to tail plays an important role in
minimizing the consumption of energy, improving product consistency, and maximizing yield.