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The production of coils and plates assumes that the slabs semifinished product, obtained from the continuous casting, are faultless. In order to eliminate any defects, the scarfing processes (using oxygen and methane flame) remove the part of the superficial area that contains the fault. This operation is carried out manually, after the cooling of the semifinished product. The aim is to perform this operation in a completely automatic way by a machine capable of both spot scarfing of the slab surface and scarfing of the slab edges. By so doing, many advantages are achieved : (i) increased productivity; (ii) automation of work carried out in critical environmental conditions; (iii) removal of defects from the product without cooling; (iv) consequent energy savings in the subsequent heating; (v) consequent improvement in working schedules. For this reason an existing machine has been employed optimising its performances for the scarfing of the slab surface, and equipping the machine with an experimental system for edge scarfing. At the same time a mathematical model has been developed testing its validity, to improve knowledge of the process.

Additional information

Authors: GRECO G, ILVA Spa., Taranto (IT)
Bibliographic Reference: EUR 13953 IT (1992) 64 pp., FS, ECU 10.50
Availability: (2)
ISBN: ISBN 92-826-4720-X
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