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'Thin slab casting' and 'near net shape casting' for the production of hot-rolled flat or long products are nowadays real facts in steel processing technology. The reasons for such developments are numerous, and the main ones to be pointed out are low operation cost, the possibility of a direct linkage between the continuous casting and the hot-rolling processes, a shorter delivery time, and when combined with Electric Arc Furnace, the possibility to solve some environmental problems by the recycling of scraps.

The thin slab casting and direct rolling technologies have already proved to reveal a great deal of cost saving in steel production. Many activities in this field have been mainly focused on technical aspects for the process development, so that different technologies are now really under control. Many projects are in development or already applied throughout the world and different strategies are observed for example in terms of casting thickness, from 40 to 50 mm at NUCOR, from 70 to 50 mm for the Conroll process of Voest-Alpine, or by the introduction of the liquid core reduction, reduced from 60 mm to 35 to 40 mm at Arvedi. Significant differences are also observed for what concerns the thermal treatment applied just before hot rolling. In actual practice, equalising furnace of 150 to 200 m in length is operated at Nucor or Voest-Alpine while short induction heating and coil box are used at Arvedi. It is also interesting to note that some differences are observed as regards the number of stands in the finishing mill. .

Additional information

Authors: SCHWERDTFEGER K, TU Clausthal-Zellerfeld (DE);KÍTHE A, IFW, Dresden (DE);IBABE J.M.R, CEIT Paseo de Manuel, San Sebastian (ES);BLECK W, RWTH, Aachen (DE);MINTZ B, City University-London, Northampton Square (UK);ENGL B, Thyssen Krupp Stahl, Dortmund (DE);NIERDERHOFF K, MFI, Duisburg (DE);HERMAN J.G, CRM, Liþge (BE);DONNAY B, CRM, Liþge (BE)
Bibliographic Reference: EUR 19409/1 EN (2000), pp.574. Euro: 84.50 (Vol.1+2)
Availability: Available by EUR-OP Sales Agents
ISBN: ISBN: 92-894-0251-2
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