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Permanent magnet centrifugal pump for liquid aluminium stirring
Ist Teil von
International journal of cast metals research (Online), 2016-05, Vol.29 (3), p.154-157
Ort / Verlag
Taylor & Francis
Erscheinungsjahr
2016
Quelle
Taylor & Francis
Beschreibungen/Notizen
In liquid aluminium processing, it is important to ensure continuous mixing of the molten metal to ensure temperature and composition homogeneity, and to improve degassing of the metal. Aluminium and its alloys are often processed in special degassing chambers after preparation in order to avoid segregation and to improve material structure, and to avoid gas pores. This extra step increases material costs and may cause material contamination. In this article, we present the idea to use centrifugal permanent magnet stirrer to induce liquid aluminium motion through thick furnace wall by creating high-speed local liquid metal jet. Analytical estimation, numerical modelling and experimental tests using GaInSn alloy has been done and are presented in the article. Model experiments are used to elaborate dimensionless parameters to verify the feasibility of this technology for liquid aluminium.