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W. Sillekens, D. Jarvis, A. Vorozhtsov, V. Bojarevics, C. Badini, M. Pavese, S. Terzi, L. Salvo, L. Katsarou, H. Dieringa (2014)
The ExoMet Project: EU/ESA Research on High-Performance Light-Metal Alloys and NanocompositesMetallurgical and Materials Transactions A, 45
V. Bojarevics, K. Pericleous (2018)
Electromagnetic particle separation in the cold crucible melting with novel type bottom pouring nozzleIOP Conference Series: Materials Science and Engineering, 424
T. Okumura, T. Shibata, N. Okochi (2006)
Production of Ti Alloy Gas Atomized Powder by Levitation Melting Furnace with Electric Nozzle, 77
V. Bojarevics, A. Roy, K. Pericleous (2011)
Numerical model of electrode induction melting for gas atomizationCompel-the International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 30
V. Bojarevics, K. Pericleous (2008)
Dynamic melting model for small samples in cold crucibleCompel-the International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 27
V. Bojarevics, K. Pericleous, R. Harding, M. Wickins (2004)
The development and experimental validation of a numerical model of an induction skull melting furnaceMetallurgical and Materials Transactions B, 35
R. Haun (2017)
Advances in the Systems and Processes for the Production of Gamma Titanium Aluminide Bars and PowderJOM, 69
(2009)
Large scale cold crucible levitation melting furnace with bottom tapping nozzle
H. Tadano, M. Fujita, T. Take, K. Nagamatsu, A. Fukuzawa (1994)
Levitational melting of several kilograms of metal with a cold crucibleIEEE Transactions on Magnetics, 30
The purpose of this paper is to investigate a new type of nozzle which is free from erosion and non-contaminating the outflow metal. Cold crucible melting technique with electromagnetic induction is used to obtain reactive metal castings and produce high-quality metal powders for aerospace, automotive and medical applications. An important part of this technology is the nozzle used to pour the molten alloy through the bottom opening.Design/methodology/approachThe paper uses mathematical modeling technique, previously validated on multiple similar cases, to investigate a new type of nonconsumable nozzle made of copper segments.FindingsThe design of the nozzle requires to satisfy the narrow balance between the thin solidified protective layer on the wall while avoiding the blockage of the outflow if the nozzle is frozen completely. The sensitivity of the outflow to the nozzle diameter is investigated. The AC electromagnetic force leads to high mixing rates, transitional flow structures and turbulence of the melt, contributing to the melt shape dynamics and the heat loss to walls.Originality/valueThe beneficial features of the cold crucible melting to purify the melt from particulate contamination are explained using the full melting and pouring cycle.
COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering – Emerald Publishing
Published: Mar 11, 2020
Keywords: Magnetic levitation; Induction heating; Time-domain modelling; Magnetohydrodynamics
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