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ISSN Online: 2377-424X

International Heat Transfer Conference 12
August, 18-23, 2002, Grenoble, France

Ingot and mould temperature measurements during the production of large size steel ingots

Get access (open in a dialog) DOI: 10.1615/IHTC12.3540
6 pages

Sinopsis

Experimental data on solidification and cooling of steel in large size moulds, collected in a steelmaking plant, are presented and briefly discussed. In recent years numerical analysis of ingot casting have been addressed by several authors, but comparison with experimental results are rare because of difficulties in obtaining them in a laboratory. Temperature measurements presented here were made during the production process of a 32×103 kg steel ingot by means of thermocouples and infrared camera. Readings from sixteen thermocouples placed inside the mould wall have been recorded for eighteen hours from the beginning of mould filling until ingot extraction. At the same time, the temperature field on the mould external surface was acquired with IR camera. In a second test, the temperature field on the ingot external surface has been determined immediately after its extraction from the mould: six identical ingots were prepared and stripped at different times to obtain an approximate cooling curve of the ingot surface.