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ISSN 2063-5346
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Application of Taguchi Method for Experimental Design of Dephosphorization process of steel through Induction furnace route

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Md Izhar Hussain1,* M. Kalyan Phani2*, P Mallikharjuna Rao3, A. Majumder4, B N Roy5
» doi: 10.48047/ecb/2023.12.10.913

Abstract

The industries who are using induction melting furnace to produce steel does not carry out any refining process, the steel produced by induction route was considered to be of inferior quality and not suitable for critical applications. Thus, in this work a methodology has been designed to produce steel from induction routes of similar quality as the steel produced through electric arc furnace and Basic Oxygen Furnace. In this new design a ladle refining furnace was implemented after induction melting. In this process the removal of phosphorous was achieved by addition of calcium oxide as a flux to maintain the basicity of the ladle refining furnace. The phosphorous has been removed in great extent and degree of dephosphorization has been achieved up to 78-85%. The extent of phosphorous removal was achieved by maintaining dephosphorization index and basicity in best possible range and is found to be in line with the design of experiment framed by Taguchi method. Taguchi method was used to find the best possible combination of degree of dephosphorization, dephosphorization index and V-ratio to remove the phosphorous from steel.

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