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Browsing by Subject "inorganic binders"

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  • thumbnail.journal.alt
    Item type:Report, Access status: Open Access ,
    REPORT no.2 on molding materials: Effect of binder type, including selection of inorganic binder, on properties of molding sands dedicated to 3D printing
    (2025) Major-Gabryś, Katarzyna; Halejcio, Dawid
    Wydział Odlewnictwa
    This report shows the results achieved partially within NetCastPL4.0 project. The project is being realized in cooperation between AGH Faculty of Foundry Engineering (Leader), CNR-ICMATE and Aalto University School of Engineering. The results presented in the work were presented during international scientific conferences - XXXI. medzinárodnej vedeckej konferencie slovenských, českých a poľských zlievačov SPOLUPRACA 2025 on 2-4 April 2025 in Rajecke Teplice (Slovak Republik), ECIG 2025 European Cast Iron Group Meeting 2025 on 29 April 2025 in Milan (Italy) and V International Conference of Casting and Materials Engineering ICCME 25 in Krakow (Poland). The work presents the influence of binder type on the properties of molding sands, including sands dedicated to 3D printing. The authors demonstrated the possibility of replacing environmentally harmful organic binders with inorganic binders.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    The Influence of Modified Inorganic Binders Intended for 3D Printing on Selected Properties of Thermally Cured Moulding Sands – Conventionally and with Microwaves
    (AGH University Press, 2026) Halejcio, Dawid M.; Major-Gabryś, Katarzyna
    This study determined the impact of thermal curing on the basic properties of moulding compounds made with commercial inorganic binders and binders based on them, modified for use in 3D printing technology (Binder Jetting). Two inorganic binders based on sodium silicate and a binder based on aluminosilicates were tested. As part of the work, the parameters for thermal curing of the mixtures were selected: for curing in a dryer, the best properties were obtained for mixtures containing 2.0 p.p.w. of binder cured for 10 min at 160°C. In the case of microwave curing, the best properties were obtained for moulding sands containing 2.0 p.p.w. of binder cured for 6 min at a device power of 800 W. The tests showed that the basic properties of moulding compounds with binders developed on the basis of commercial binders for use in 3D printing technology, thermally cured in a dryer, do not differ significantly from the properties of compounds with commercial binders. In the case of microwave curing, a reduction in the strength of compounds with new binders was observed in relation to compounds with classic binders. Thermal deformation tests of compounds with classic and modified binders confirmed the typical behavior observed for inorganic systems. It was proven that new, modified inorganic binders developed for 3D printing of moulds and cores using Binder Jetting technology can be used as binding materials in thermally cured moulding sands. Both thermal curing methods were assessed as suitable for curing moulding compounds with new binders.