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Analysis of the penetration behavior of molten cast iron into the sand mold
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0003-2929-7891
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0003-0534-3291
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0002-3644-213X
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0002-6548-8815
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2023 (English)In: International Journal of metalcasting, ISSN 1939-5981, E-ISSN 2163-3193Article in journal (Refereed) Epub ahead of print
Abstract [en]

An evaluation method for the initial penetration of molten cast iron into the sand mold was suggested based on the laboratory-scale penetration experiments for the cast iron. The horizontal penetration depth of the molten cast iron into the sand core was analyzed using the capillary model. The early stage of the penetration was discussed, and it was clarified that the penetration is not stopped by the solidification but is stopped by the decreasing of the equivalent pore radius. It was explained that the equivalent pore radius decreases with increasing the penetration depth, and the penetration is stopped when the critical pressure, i.e., the pressure required for the penetration, becomes higher than the pressure which is acting on the penetration front. Based on the analysis, an evaluation method of the penetration of depth at the early stage of the penetration was suggested. The analysis method was applied for the other type of metals (mercury and steel) as well, and reasonable results were obtained. A simplified finite-element model of liquid iron penetration into a sand core was developed, accounting for heat exchange between the melt and the porous medium, at different pore geometries.

Place, publisher, year, edition, pages
Springer, 2023.
Keywords [en]
penetration, molten metal, porous medium, casting, surface defects, cast iron, finite element simulation
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:hj:diva-62796DOI: 10.1007/s40962-023-01169-5ISI: 001089876100004Scopus ID: 2-s2.0-85174849547Local ID: HOA;;62796OAI: oai:DiVA.org:hj-62796DiVA, id: diva2:1807965
Funder
Knowledge Foundation, 20180033, 20200057, 20210082Available from: 2023-10-30 Created: 2023-10-30 Last updated: 2023-11-28

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Matsushita, TaishiBelov, IljaSvidró, József TamásSvidró, JuditDiószegi, Attila

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