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Company News


MILESTONES IN MONOLITHIC STEEL LADLE MANAGEMENT DISCUSSED IN TECHNICAL MEETING SEVEN REFRACTORIES PROMOTES NEW TECHNOLOGIES


Recent changes in the geopolitical and economic landscape of steel and refractory manufacturing have led to significant technology shifts when it comes to steel ladles. With the change from traditional bricks to monolithic solutions, Seven Refractories finds itself on the forefront of technological change.


A recent international meeting in Divaca was dedicated to the in-depth presentation and discussion of modern solutions. Close to 50 international experts joined the venue.


“Unshaped refractories in steel ladles have many advantages“, states Luca Folco, Research & Development at Seven Refractories. “Seamless installations


present less interface


environmentally as well as technologically viable. As a declared technology leader, Seven Refratories sees its task to promote this change in a fairly traditional surrounding.“


The agenda contained such diverse subjects as shotcreting for steel ladle walls, castables for steel ladle bottoms, steel, monolithic concepts for steel ladle lining, electric arc furnace repair and finally a presentation on complete refractory solutions from Seven’s joint venture partner Dalmia OCL from India.


problems and are economically,


“One of the core ideas was to promote the exchange of international best practice examples. Our speakers showed real-life solutions from Austria, India, Russia, Slovakia, Spain, and the Ukraine, which led to a lively and fruitful discussion“, summarized Giuliano Copetti, Group Technical Manager. “Technology has seen vast improvements over the last few years, and never before have the benefits been as outstanding. All things considered, we are now in an ideal environment to promote these advanced solutions for the benefit of our customers.“


CONTINUOUS BILLET CASTER REVAMPED BY PRIMETALS TECHNOLOGIES STARTED UP AT FERALPI SIDERURGICA IN ITALY


Recently, a six-strand billet caster revamped by Primetals Technologies was started up in the Lonato del Garda works of Feralpi Siderurgica S.p.A., part of the Italian Feralpi Group. The aims of the project were to increase production capacity from 1.1 to 1.2 million metric tons of billets per year, to produce billets with a larger square cross section of 150 x 150 millimetres with predisposition for cross section of 160 x 160 millimetres, and to improve plant availability.


Before the revamp, the six-strand billet caster of Feralpi Siderurgica in Lonato del Garda in the Brescia Province, had an installed annual capacity of 1.1 million metric tons of billets with a square cross sections of 140 x 140 millimetres. It produces medium carbon, carbon and low alloyed steels for the construction industry. Within the revamping project, the casting machine was equipped with new DiaMold high-speed casting molds,


characterized by tapered mold tubes and open bottom-mold corners to reduce strand friction. The DynaFlex hydraulic oscillator with online and flexible adjustment of the mold-oscillation parameters serves to improve strand-surface quality. The scope of supply included a new secondary cooling and a dummy bar head and the existing straightener has been modified according to Primetals Technologies' model of continuous straightening to optimise the straightening strains. Primetals Technologies was responsible for the basis, detail engineering and supply of the above components.


Feralpi Group is one of the most important steel suppliers to the European construction industry and operates four subsidiary companies in Italy and runs production and sales locations in Europe and North Africa.


March 2019 Issue


ENGINEER THE REFRACTORIES


11


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