Effect of the Type of Inorganic Binder on the Properties of Microwave-Hardened Moulding Sands for Ablation Casting Technology

• Autorzy: Puzio S. , Kamińska J. , Angrecki M. , Major-Gabryś K.

Identyfikatory

DOI

10.24425/amm.2020.133704

• Języki publikacji: EN

Abstrakty

EN

The aim of this study is to demonstrate the possibility of using moulding sands based on inorganic binders hardened in a microwave chamber in the technology of ablation casting of aluminium alloys. The essence of the ablation casting technology consists in this that a mould with a water-soluble binder is continuously washed with water immediately after being poured with liquid alloy until its complete erosion takes place. The application of an environmentally friendly inorganic binder improves the ecology of the whole process, while microwave hardening of moulding sands allows moulds to be made from the sand mixture containing only a small amount of binder. The studies described in this article included microwave-hardened sand mixtures containing the addition of selected inorganic binders available on the market. The strength of the sands with selected binders added in an amount of 1.0; 1.5 and 2.0 parts by mass was tested. As a next step, the sand mixtures with the strength optimal for ablation casting technology, i.e. about 1.5 MPa, were selected and tested for the gas forming tendency. In the four selected sand mixtures, changes occurring in the samples during heating were traced. Tests also included mould response to the destructive effect of ablation medium, which consisted in the measurement of time necessary for moulds to disintegrate while washed with water. Tests have shown the possibility of using environmentally friendly, microwave-hardened moulding sands in ablation casting of aluminium alloys.

Słowa kluczowe

EN

innovative technologies; ablation casting; moulding sands; microwave hardening; environmentally friendly inorganic binders

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 4
• Strony: 1385--1390
• Opis fizyczny: Bibliogr. 14 poz., fot., rys., tab.

Twórcy

autor

Puzio S.

• Łukasiewicz – Kraków Institute of Technology, Centre of Casting Technology, 73 Zakopiańska Str., 30-418 Kraków, Poland

autor

Kamińska J.

• Łukasiewicz – Kraków Institute of Technology, Centre of Casting Technology, 73 Zakopiańska Str., 30-418 Kraków, Poland

autor

Angrecki M.

• Łukasiewicz – Kraków Institute of Technology, Centre of Casting Technology, 73 Zakopiańska Str., 30-418 Kraków, Poland

autor

Major-Gabryś K.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

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