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Influence of the Power of Various Types of Induction Furnaces on the Shape of the Metal Bath Surface
Albert Smalcerz 1  
,   Bartosz Węcki 2  
,   Leszek Blacha 3  
 
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1
Faculty of Materials Science, Department of Industrial Informatics, Silesian University of Technology, Krasinskiego 8, 40-019 Katowice, Poland
2
Department of Testing and Certification "ZETOM", Ks. Herberta Bednorza 17, 40-384 Katowice, Poland
3
Faculty of Materials Science, Department of Metallurgy and Recycling, Silesian University of Technology, Krasinskiego 8, 40-019 Katowice, Poland
CORRESPONDING AUTHOR
Albert Smalcerz   

Faculty of Materials Science, Silesian University of Technology, Krasinskiego 8, 40-019 Katowice, Poland
Publication date: 2021-09-01
 
Adv. Sci. Technol. Res. J. 2021; 15(3):34–42
 
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ABSTRACT
The work shows the results of examinations conducted to ascertain the influence of the working power of a vacuum induction crucible furnace (ICF) and a furnace with a cold crucible(CCF), on the surface area of liquid Al-Zn alloy molten within these devices. It was determined that the increase of the value of this parameter causes the increase of the liquid alloys surface area. In the case of smelting alloy inside a crucible furnace the increase of power from 8 to 22 kW causes the increase of liquid alloy surface from 88 to 155 cm2. For a furnace with a cold crucible, the power increase from 70 to 130 kW causes the increase of the alloy surface from 280 to 330,3 cm2. For all power values a larger increase in surface area was observed in crucible furnaces (around two times). In cases of cold crucible furnaces, this increase was around 20%. Additionally, based on the examination results the way in which the surface area of liquid alloy can intensify the undesirable process of zinc fuming away, was discussed. It has been demonstrated that the process of zinc elimination from the examined alloy is more intensive while using a cold crucible induction furnace.