Thermally Hardened Moulding and Core Sands with Hydrated Sodium Silicate Designed for Al Alloy Castings

• Autorzy: Major-Gabryś K. A. , Grabarczyk A. P. , Dobosz S. M.

Identyfikatory

DOI

10.24425/123615

• Języki publikacji: EN

Abstrakty

EN

The necessity of obtaining high quality castings forces both researchers and producers to undertake research in the field of moulding sands. The key is to obtain moulding and core sands which will ensure relevant technological parameters along with high environmental standards. The most important group in this research constitutes of moulding sands with hydrated sodium silicate. The aim of the article is to propose optimized parameters of hardening process of moulding sands with hydrated sodium silicate prepared in warm-box technology. This work focuses on mechanical and thermal deformation of moulding sands with hydrated sodium silicate and inorganic additives prepared in warm-box technology. Tested moulding sands were hardened in the temperature of 140ºC for different time periods. Bending strength, thermal deformation and thermal degradation was tested. Chosen parameters were tested immediately after hardening and after 1h of cooling. Conducted research proved that it is possible to eliminate inorganic additives from moulding sands compositions. Moulding sands without additives have good enough strength properties and their economic and ecological character is improved.

Słowa kluczowe

EN

innovative foundry technologies; innovative foundry materials; moulding sand; hydrated sodium silicate; thermal hardening

PL

innowacyjne technologie odlewnicze; innowacyjne materiały odlewnicze; masa formierskia; krzemian sodu; hartowanie termiczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 3
• Strony: 132--137
• Opis fizyczny: Bibliogr. 23 poz., fot., tab., wykr.

Twórcy

autor

Major-Gabryś K. A.

• AGH University of Technology, Krakow, Poland

autor

Grabarczyk A. P.

• AGH University of Technology, Krakow, Poland

autor

Dobosz S. M.

• AGH University of Technology, Krakow, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).