A test stand for quantifying the core gas release and the gas permeability of inorganically-bound foundry cores

  • Environmental and work safety aspects necessitate a radical change in the foundry industry. Organic binder systems for foundry sand cores create toxic combustion products and are, therefore, more and more often substituted by inorganic binder systems. While providing an environmental advantage by mainly releasing water vapor, inorganic binder systems impose new challenges for the casting process. The gas release of inorganically-bound foundry cores can lead to increased gas porosity in the cast parts and thus to high scrap rates. The present work aims to gain more understanding of the gas generation and transport in inorganic sand binder systems. We developed a test stand to measure the temperature-dependent core gas release in inorganically-bound foundry cores and their gas permeability. Samples were prepared in a core blowing process and analyzed using the test stand. The measurement results are in good agreement with validation experiments and existing literature.

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Author:Benedikt Kirchebner, Simon Kammerloher, Georg Fuchs, Erwin Reberger, Wolfram Volk, Philipp LechnerORCiDGND
Frontdoor URLhttps://opus.bibliothek.uni-augsburg.de/opus4/109192
Parent Title (English):International Journal of Metalcasting
Publisher:Springer Science and Business Media LLC
Date of first Publication:2023/07/24
Publishing Institution:Universität Augsburg
Release Date:2023/11/15
Tag:Materials Chemistry; Metals and Alloys; Industrial and Manufacturing Engineering; Mechanics of Materials
Institutes:Mathematisch-Naturwissenschaftlich-Technische Fakultät
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Materials Resource Management
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Materials Resource Management / Juniorprofessur für Data-driven Materials Processing
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 50 Naturwissenschaften / 500 Naturwissenschaften und Mathematik
Latest Publications (not yet published in print):Aktuelle Publikationen (noch nicht gedruckt erschienen)
Licence (German):CC-BY 4.0: Creative Commons: Namensnennung (mit Print on Demand)