Molding material mixtures containing barium sulfate

The invention relates to molding material mixtures containing barium sulfate in combination with refractory basic molding materials and a waterglass-based binder system for producing casting molds and cores for the foundry industry in order to obtain cast pieces, in particular aluminum ones, which h...

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Bibliographische Detailangaben
Hauptverfasser: Oberleiter Martin, Deters Heinz, Körschgen Jörg
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to molding material mixtures containing barium sulfate in combination with refractory basic molding materials and a waterglass-based binder system for producing casting molds and cores for the foundry industry in order to obtain cast pieces, in particular aluminum ones, which have an improved cast surface.