The Effect of the Addition of Bentonite Clay to Traditional Sand Mixtures on the Surface Quality of Iron Castings

• Autorzy: Kamińska Jadwiga , Puzio Sabina , Angrecki Michał , Stachowicz Mateusz

Identyfikatory

DOI

10.12911/22998993/112505

• Języki publikacji: EN

Abstrakty

EN

Successful casting demands that during pouring of the foundry mould with molten metal the mould cavity suffers no deformation. This, in turn, demands the use of binding materials that can give the base sand adequate strength. The main bonding materials are clay binders. The foundry industry uses minerals rich in clay, such as kaolinite, halloysite, hydromica, montmorillonite, polygorskite, vermiculite and allophane. Due to their binding capacity, montmorillonites are the most interesting minerals of all the plastic clay rocks. The basic clay rock containing montmorillonite, used as a common binding material for traditional foundry sand mixtures, is bentonite. The domestic demand for raw bentonite materials is almost entirely satisfied by imports from Slovakia, Turkey, Italy, Germany and the Czech Republic, in order of import size. In Poland, the bentonite deposits occur in very small quantities. The exploitation of bentonites is carried out only in the Krzeniów deposit, where they constitute a mineral accompanying basalt. Much more common are bentonite clays containing in addition to smectites also a large amount of other clay minerals. The article presents the results of studies of the physico-chemical and mechanical properties of moulding sand mixtures containing pure bentonite, pure clay or hybrid bentonites which are a bentonite-clay mixture. Melting was also carried out to determine the effect of the type of binder on the surface quality of iron castings.

Słowa kluczowe

EN

bentonite; bentonite clay; traditional sand mixtures; casting surface quality

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2020
• Tom: Vol. 21, nr 1
• Strony: 160--167
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Kamińska Jadwiga

• ŁUKASIEWICZ – Foundry Research Institute, Department of Technology, Zakopianska 73, 30-418 Cracow, Poland

autor

Puzio Sabina

• ŁUKASIEWICZ – Foundry Research Institute, Department of Technology, Zakopianska 73, 30-418 Cracow, Poland

autor

Angrecki Michał

• ŁUKASIEWICZ – Foundry Research Institute, Department of Technology, Zakopianska 73, 30-418 Cracow, Poland

autor

Stachowicz Mateusz

• Wrocław University of Technology, Faculty of Mechanical Engineering, Chair of Foundry Engineering, Plastics and Automation, Ignacego Łukasiewicza 5, 50-371 Wrocław, Poland

Bibliografia

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• 9. Pałyga Ł., Stachowicz M., Granat K., 2015. Evaluation of 2D and 3D surface roughness of die castings from alloy AlSi9Cu3. Archives of Foundry Engineering, 15 (1), 75–80.
• 10. Priyadharsini S., Karunakaran P., 2016. Determination of the physical properties of sand moulding bonded with composite of ipomoea batatas and bentonite with casting application. International Research Journal of Engineering and Technology, 3 (4), 2913–2919.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).