WCA September 2009

news

news

❍ Rosendahl RX45 with a ROEX extruder Advanced crosshead technology

Rosendahl’s ongoing communication with polymer manufacturers ensures that all technology is completely up to date. Rosendahl, as supplier of extruders, crossheads and of complete extrusion lines, is in a position to investigate and under- stand the polymer extrusion process. The integrated simulation results, together with the experiential data, have enabled optimisation of the head design and ultimately to achieve a high quality of extrudate. Rosendahl Maschinen – Austria Fax : +43 3113 5100 59 Email : office@rosendahlaustria.com Website : www.rosendahlaustria.com wire rod and rebar rolling mills with hot discharging route. SMS Concast delivered the auto- mation software, including level-2 Controlware which is linked to the level-3 system of the plant. SMS Concast AG – Switzerland Email : sales@sms-concast.ch Website : www.sms-concast.ch

The simulation also enables analysis of pressure, temperature rise, velocity, stress and strain rate distributions over the entire simulation domain. Especially when designing the distri- butor, it is important to adapt the distributor’s channels to the flow path of the melt. In order to offer a broad material spectra, Rosendahl partnered with university institutes to research a wide range of materials for the cable industry, and now offers a material database that includes standard as well as special material (such as foamed material blends, LSOH or XLPE). The billet caster can be used for open and submerged casting. It is designed for a production capacity of 1.7million ton of billets per year. The high-speed caster contains the convex mould technology, electro- magnetic mould stirring, hydraulic mould oscillation and the Conseal IV technology. The production process is directly tuned to the downstream

The challenge in distributor design is to find the optimum dimensions of the distributor to attain a balanced flow at the exit. Rosendahl’s distributor concept is said to guarantee homo- geneous material flow – independent of the processed materials and independent of the output. This opti- mised material flow provides high centricity and allows a reduction in average wall thickness and therefore reduces the manufacturing costs. With the help of the latest finite element simulation programmes, Rosendahl conducts mechanical cal- culations and rheological analysis of its cross-head series. JSW Steel Ltd (JSW), located in Toranagallu in the state of Karnataka in India, has commissioned the first eight-strand billet caster on the Indian subcontinent together with SMS Concast, Zurich (Switzerland), a com- pany of the SMS group, Germany. The billet caster is part of JSW’s expansion programme which will bring the production capacity at the Vijayanagar works to 7million tpy.

SMS Concast AG commissions eight-strand billet caster at JSW

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Wire & Cable ASIA – September/October 2009