Influence of water-glass grade and quantity on residual strength of microwave-hardened moulding sands. Part 1

• Autorzy: Stachowicz M. , Granat K. , Nowak D.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a research on influence of dielectric drying process on mechanical properties of water-glass containing moulding sands. Examined were moulding sands containing additions of 1.5 and 2.5 % of hydrated sodium silicate grades 145, 149 and 150, most often used in foundry practice. Standard, cylindrical specimens for mechanical testing were held at temperatures from 100 to 1200 oC for 30 minutes and next cooled-down to ambient temperature. Then their residual strength was determined. Comparison of the obtained results with literature data indicates that dielectric drying is favourable for reduction of residual strength of used water-glass moulding sands, and thus improves their knock-out properties.

Słowa kluczowe

EN

water glass; moulding sand; microwave hardening; hydrated sodium silicate; residual strength; knock-out properties

PL

szkło wodne; piasek formierski; mikrofale; uwodniony krzemian sodu; wytrzymałość resztkowa; wybijalność masy formierskiej

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 1
• Strony: 93--98
• Opis fizyczny: Bibliogr. 16 poz., tab., wykr.

Twórcy

autor

Stachowicz M.

autor

Granat K.

autor

Nowak D.

• Foundry and Automation Team, Wroclaw University of Technology, ul. Łukasiewicza 5, 50-371 Wrocław, Poland,

Bibliografia

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