Electromagnetic and thermal analysis of the induction heating of aluminum billets rotating in DC magnetic field

• R. Araneo ^[3] ; F. Dughiero ^[1] ; M. Forzan ^[1] ; A. Geri ^[3] ; A. Morandi ^[2]
  1. [1] University of Padua

     University of Padua

     Padova, Italia

     
  2. [2] University of Bologna

     University of Bologna

     Bolonia, Italia

     
  3. [3] University of Roma

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• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 27, Nº 2 (Special Issue: HES‐07), 2008, págs. 467-479
• Idioma: inglés
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• Resumen

  • Purpose – The paper aims to deal with the induction heating of metal billets rotating in a DC magnetic field.

    Design/methodology/approach – The induced power distributions are analysed and the main heating parameters are estimated with reference to an infinitely long Al billet 200 mm diameter. The paper refers to the activity developed in the frame of a National Italian Project carried out by research groups of the Universities of Bologna, Padua and Roma “La Sapienza.” Findings – The main process parameters have been evaluated for the heating up to 500°C of an Al billet 200 mm diameter.

    Practical implications – This innovative technology appears to be very promising for improving the efficiency of the through heating of high‐conductivity metals (e.g. copper, aluminum) before hot working, by using superconducting magnets.

    Originality/value – The paper analyses the induction heating of a infinitely long billet rotating in a uniform DC magnetic field.