EuroWire January 2015

News Corporate

New standards for wire straightening

Eurobend operates through a new state-of the-art production facility and headquarters, and offices and service centres located throughout the world. The wire processing equipment lines include a complete range of high-output programmable wire straightening and cutting machines (type “MELC”) designed for heavy-duty continuous operation within the wire industry. The straightening method based on the rotor straightening principle using hyperbolically profiled rollers was invented and introduced by Eurobend engineers in the early 1980s, setting a standard for the wire producing and processing industries. All conventional straightening and cutting machines operate using two different principles: Both systems have advantages and disadvantages. The Eurobend method is based on the rotor straightening system but instead of dies, hyperbolically profiled steel rollers are used. These rollers execute the two fundamental operations of straightening and feeding simultaneously. This is achieved by positioning the rollers at an angle to the wire axis and rotating around it, thereby achieving feeding and straightening at the same time. The placement of the rollers at an angle to the wire axis results in line contact with the wire surface and not in point contact as in conventional rotors with dies. • Two-plane roller configuration at 90° to each other • Conventional rotor straightening with dies

▲ ▲ The MELC polyline series from Eurobend

When the rotor is spinning and the rollers are feeding the wire through, there is no sliding friction, but only rolling friction, and thus the wire surface is not damaged. The Eurobend straightening method ensures an optimal straightening quality and consistency without continuous wear of dies or conventional rollers. MELC straightening and cutting machines provide users with a number of advantages: • Machine downtime is minimised as continuous straightening mechanism adjustments are not needed • Straightening of high tensile steel (up to 1,800N/mm 2 UTS) has been achieved without the implementation of additional apparatus • Mechanical simplicity of machine construction due to simultaneous feeding and straightening results in a machine with stable, constant, efficient and reliable operation • Cutting of the required length is achieved with flying shear cutter, while the wire is fed without having to start and stop or to slow down the speed of the fed wire • The simplicity of the design allows construction of multi-line machines depending on the productivity requirements and the diameter ranges to be processed. Each line works independently from the others and any combination or all of them can work together. In addition, each line has a dedicated collecting bin and can cut the same or different lengths • By designing the right hyperbolic profile (curvature) of the roller, combined with the proper surface treatment of the roller and more rarely the proper coating, the machines can achieve the desired surface finish on the straightening wire surface • The different rotor sizes that are available cover diameter ranges from 4 to 50mm of regular wire, deformed, recessed or rebar, of any grade (high tensile or stainless steel) Eurobend SA – Greece Website : www.eurobend.com Stainless steel bars price hike Ugitech and Deutsche Edelstahlwerke, subsidiaries of Schmolz and Bickenbach Group, have announced a price increase on their stainless steel bars, wire rod and drawn wire products. Price increases range up to €50 per tonne and became effective as of January 2015. Ugitech – Germany Website : www.ugitech.com Deutsche Edelstahlwerke – Germany Website : www.dew-stahl.com

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January 2015