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Electromagnetic priming of ceramic foam filters (CFF) for liquid aluminum filtration
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2016 (English)In: 142nd Annual Meeting and Exhibition, TMS 2013, Springer International Publishing , 2016, no 210869, p. 973-979Conference paper, Published paper (Refereed)
Abstract [en]

Commercial Ceramic Foam Filters (CFF) of 30, 50 and 80 Pores Per Inch (PPI) have been primed, using magnetic field strengths of 0.06–0.2T, for periods of 1–10 minutes. The influence of time and field strength on the gas removal from the CFF structure, and the resulting improvements in filter productivity, are discussed. The obtained results are related to Finite Element Modeling (FEM) of the metal flow fields induced by the electromagnetic Lorentz forces. Higher filtration rates were obtained for 50 PPI magnetically primed, than for 30 PPI gravity primed filters. This suggests that electromagnetic priming offers an opportunity to use 50 PPI filters, with a higher overall filtration efficiency than 30 PPI filters, in existing cast house applications where the low productivity/high priming head of these filters would otherwise rule them out. Estimated filtration efficiency of different filter types are presented as functions of velocity and thickness.

Place, publisher, year, edition, pages
Springer International Publishing , 2016. no 210869, p. 973-979
Keywords [en]
Aluminum, Cff, Electromagnetism, Priming, Bandpass filters, Ceramic foams, Ceramic materials, Efficiency, Finite element method, Functional electric stimulation, Metal casting, Productivity, Ceramic foam filters, Commercial ceramic foams, Filtration efficiency, Filtration rates, Liquid aluminum, Magnetic field strengths, Pores per inches, Filtration
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-227896DOI: 10.1007/978-3-319-65136-1_165Scopus ID: 2-s2.0-85042468610OAI: oai:DiVA.org:kth-227896DiVA, id: diva2:1206256
Conference
3 March 2013 through 7 March 2013
Note

QC 20180516

Available from: 2018-05-16 Created: 2018-05-16 Last updated: 2018-05-16Bibliographically approved

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