Danieli three-roll cross rolling mill in quick operation at Vallourec, Rath, Germany
After just two months of performance testing, Vallourec Deutschland released mill acceptance certification
Excellent performances achieved right from the beginning by Vallourec Deutschland (VAD) operating the new Danieli cross-rolling mill.
The CRM supplied to VAD is a unique, newly designed machine developed by Danieli Centro Tube to meet VAD demanding requirements. These include the flexibility to roll carbon, alloy, and high-alloy carbon steel grades, starting from 400 to 850 mm OD ingots. The finished products are tubes ranging from 244 to 711 mm OD (9-5/8 to 28 inches.)
In terms of the finished-product quality (ovality, eccentricity, straightness and reproducibility), the new mill’s performance targets were reached just after the equipment start up, and then followed in steps by the productivity and availability goals.
The machine was built, assembled and pre-tested at Danieli headquarters workshops, and installed during an outage of approximately 8 weeks for demolition, excavation, civil works and erection. Innovative, prefabricated foundation modules and erection techniques were adopted to achieve such short shutdown targets.
This installation is a new milestone in seamless pipe production.
According to Dr. Ulrich Menne, Chairman of the Management Board Vallourec Deutschland GmbH: “With the investment in a new CRM here in Düsseldorf-Rath we want to specifically expand our product range in the direction of higher-quality premium materials with higher resistance to deformation in particular in regard to alloyed and high-alloy materials. At the same time we want to expand our dimension range, too: in particular in regard to thin-walled pipes and pipe lengths we want to take a further step towards the new market requirements”.
source: Danieli
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