9th ECCC European Continuous Casting Conference – ECCC 2017

Changing market situations demand sustainable usage of new available technologies to support steel producers with highly flexible plant configurations and tools. Therefore investments are focused to optimize production costs and product quality with short-term return. Modular design of upgrade solutions provides an individual configuration of metallurgical process-optimization respecting...

Dillinger has put into operation a new continuous caster. The fully vertical machine is equipped with 2 strands of a nominal widths of 2200 mm. The thickness varies from 300 to 500 mm in 50 mm increments. Each strand consists of 9 segments allowing the caster to align the slab optimally at any position during the casting process. Soft reduction adjustment of the segments guarantees lowest...

The challenging task assigned to Danieli in April 2014 involved revamping the single-strand slab caster on a turnkey basis, within a compressed shutdown period of four weeks, including the entire schedule for dismounting, erection and commissioning. Danieli, in close cooperation with the ArcleorMittal Industeel project team, completed all the activities including design, manufacturing,...

Puyang steel, one of China’s leading private steel producers, extended its grade portfolio to very demanding steels with the new caster being designed for a yearly production of 1.2 million tons of not only peritectic micro-alloyed and high-strength steels, but high carbon and boron-alloyed steels, high quality construction steels and pipeline grades. The slab format covers a medium size...

The field of computer-assisted layout engineering and material flow planning and evaluation has gained considerable interest in the last years, mainly thanks to the evolution of advanced numerical modeling tools. Danieli has developed a state-of-the-art solution with a dedicated set of simulation libraries able to model the logistics of the entire meltshop, from scrap yard through melting and...

A competitive landscape pressurizes the steel producers business, zero defect requirements from customers forces the producers for additional efforts in process control and quality management. The so called quality related cost, which include also rework, cost for downgrading or even scabbing of material is already a remarkable lever in a plants profitability breakdown. The introduction of...

ArcelorMittal Tubarão (AMT) is located in the State of Espírito Santo, southeast of Brazil. AMT has been in operation since November of 1983, and its main products are steel slabs and hot rolled coils. By using continuous improvement in the production process, maintenance and the latest technologies and equipment, AMT is aiming to increase the production of liquid steel at its steelmaking...

In May 2015 the modernized slab caster No. 3 in Hüttenwerke Krupp Mannesmann GmbH (HKM) Duisburg-Huckingen plant in Germany went into operation. The revamp was done by Primetals Technologies Austria, with the targets of enhancing quality and product tolerances of the slabs produced, widening the product portfolio, and improving process stability, availability, and workplace safety. For...

Increasing quality requirements on continuous casting products lead to the necessity of getting detailed information on physical phenomena occurring in the mould. Temperature measurements help to control the beginning solidification, e.g. with a sticker warning system. Up to now measurements with thermocouples are the state-of-the-art. An alternative is presented here with a fibre optical...

The dual strand casting machine CC No.4 at Linz steel plant is the eldest machine in operation and casts 215 mm thick slabs of ultra-low carbon, low carbon and HSLA steel. Recently bothering sliver defects appeared on the hot bands in a certain width range of approx. 1000 to 1200 mm when casting micro-alloyed construction steel. Such defects were not seen on hot band when rolling slabs from...

At Primetals Technologies Brazil Ltda. Rio de Janeiro Santa Cruz Workshop we electroplate mold coppers for continuous casting by tank plating. Tank plating submerges the copper in the bath of the plating solution. This is the most common method of plating and is applicable for both broad-face and narrow-face copper plates. Mold copper plates have a decisive impact on the product quality as...

Strand guide rollers in continuous casters are crucial components for an optimal process for the production of high-quality steel grades. The properties of these rollers greatly influence the quality of the slab produced. The most commonly used designs so far have been the axle roller and the solid roller. Through an intensive exchange of experience with the caster manager of continuous...

When continuous casting rolls are in operation, the load pressure and temperature changes from the top segment at the point of continuous contact to the horizontal zone. During this process, rolls must withstand the following phenomena:  Elevated temperature  Intensive water spray cooling  High slab contact pressure  Fatigue due to cyclic thermal and mechanical stresses  ...

The modern continuous casting machine is a highly complex mechatronic system where utmost precision has to be reached to ensure high product quality while the equipment has to be designed to withstand the harsh environmental conditions. These two requirements alone would make things difficult, but additionally the lowest operation costs have to be achieved to survive under highly competitive...

The prerequisites for using an Energy Collector (E-CO) for the recuperation of radiant heat are red-hot material at temperatures exceeding 750 degrees Celsius over a long roller table. The slabs are transported to the heat exchangers via the roller table. There, depending on their surface temperature, they radiate between 45 and 70 kW thermal energy per square meter. The heat exchangers take...