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Performance Evaluation of Two Different Industrial Foam Filters with LiMCA II Data

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Plant-scale filtration experiments with molten aluminum have been carried out with two different types of 10 × 10 × 2 in, 30 ppi ceramic foam filters. The filters were produced in the same production line where the only difference was the composition of the ceramic slurry used for the filter production. The inclusion contents in the aluminum melt before and after the filters were measured with two constantly running liquid metal cleanliness analyzer (LiMCA) II units. Three methods for analyzing the recorded data are presented. A significant difference in the filtration performance as function of time was found when settling of inclusions in the melt was taken into account. Statistical treatment of the time dependent LiMCA II data was performed.

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Acknowledgments

This research was carried out as part of the Norwegian Research Council (NRC)-funded BIP Project (No. 179947/I40) Remelting and Inclusion Refining of Aluminium (RIRA). It includes the following partners: Hydro Aluminium AS, SAPA Heat Transfer AB, NTNU, and SINTEF. Funding from the industrial partners and NRC is acknowledged gratefully. Thanks are also owed to Arne Nordmark at SINTEF and Bjørn Rasch at Hydro Aluminium Sundalsøra for support in the industrial experiments.

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  1. SINTEF Materials and Chemistry, 7465, Trondheim, Norway

    Martin Syvertsen (Research Scientist) & Sarina Bao (Research Scientist)

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  1. Martin Syvertsen
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  2. Sarina Bao
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Correspondence to Martin Syvertsen.

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Manuscript submitted July 9, 2013.

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Syvertsen, M., Bao, S. Performance Evaluation of Two Different Industrial Foam Filters with LiMCA II Data. Metall Mater Trans B 46, 1058–1065 (2015). https://doi.org/10.1007/s11663-014-0251-4

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  • DOI: https://doi.org/10.1007/s11663-014-0251-4

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