Transcription of AISI | Electric Arc Furnace Steelmaking
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AISI | Electric Arc Furnace Steelmaking
9:36 AM SIGN UP to receive AISI's FREE e-news! Read the latest. Email: Name: JoinHome Steelworks Home Electric Arc Furnace SteelmakingBy Jeremy A. T. Jones, Nupro CorporationCourtesy of Mannesmann Demag Corp. Furnace OPERATIONSThe Electric arc Furnace operates as a batch melting process producing batches of molten steel known "heats". The Electric arcfurnace operating cycle is called the tap-to-tap cycle and is made up of the following operations: Furnace chargingMeltingRefiningDe-slaggingTappin gFurnace turn-aroundModern operations aim for a tap-to-tap time of less than 60 minutes. Some twin shell Furnace operations are achievingtap-to-tap times of 35 to 40 9:36 AMFurnace ChargingThe first step in the production of any heat is to select the grade of steel to be made. Usually a schedule is developed prior toeach production shift. Thus the melter will know in advance the schedule for his shift. The scrap yard operator will preparebuckets of scrap according to the needs of the melter.
The charge can include lime and carbon or these can be injected into the ... This energy can be electrical or chemical. Electrical energy is supplied via the graphite electrodes and is usually the largest contributor in melting operations. Initially, an intermediate voltage tap is selected until the electrodes bore ... the hot products of ...
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