Volume 4, Issue 2-1, March 2015, Page: 1-6
Melting of a New Carbon –Free Waxed Sponge Iron in Electric Arc Furnace (EAF) for Steelmaking
Jaleel Kareem Ahmad, College of Materials Engineering, Babylon University, Babylon, Iraq
Received: Oct. 19, 2014;       Accepted: Nov. 2, 2014;       Published: Nov. 3, 2014
DOI: 10.11648/j.ijmsa.s.2015040201.11      View  3583      Downloads  181
Abstract
No problem with the melting of new carbon – free waxed coated sponge iron (Jaleel's process) for producing different steel alloys. Coated wax: (1) acts as inhibitor for inhibition of reoxidation of sponge iron. (2) provide the required carbon for reduction iron oxide as well as a balance for the chemical composition of steel. (3) provide part of the heat required for the reduction. (4) acts as a refiner for the steel via hydrogen formation in the slag which attacks impurities. Economic study was done show that (1) about 8-10% reduction in the electric energy consumption with the new carbon – free waxed sponge iron comparing with that of normal sponge iron under the same melting conditions. (2) long life ( ~ 20-25% more) for carbon electrode in the case of the new material melting comparing with that of normal sponge iron due to the reducing atmosphere created from the wax combustion during melting. (3) chemical analyses for produced steel show no traces of sulfur and phosphorous remain after melting. (4) calculation shows that there is a 5% reduction in the total steel cost production in case of using 50% sponge iron ( contain 5% wax according to Jaleel waxing process) according to HYL costs system.
Keywords
Direct Reduced Iron, Wax, Steel, Electric Arc, Furnace
To cite this article
Jaleel Kareem Ahmad, Melting of a New Carbon –Free Waxed Sponge Iron in Electric Arc Furnace (EAF) for Steelmaking, International Journal of Materials Science and Applications. Special Issue: Steel and Direct Reduced Iron (sponge Iron) Industry . Vol. 4, No. 2-1, 2015, pp. 1-6. doi: 10.11648/j.ijmsa.s.2015040201.11
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