Polysialates binders preparation and their influence to shear strength of foundry sand mixtures

• Autorzy: Fridrich R. , Jelinek P.
• Języki publikacji: EN

Abstrakty

EN

This paper deals with polysialates water-glasses preparation. There were used various procedures with the goal to create inorganic polymer on silicon and aluminum base. The one composed of SiO2 and AlO4 tetrahedron chains. For the preparation was concentrated NaOH solution used together with metakaolinite in a way low-temperature synthesis in the presence of alkaline silicate: higher pressure and temperature (autoclave) to direct making of alkaline silicate made of sand, NaOH with metakaolinite addition and by melting fritted glass together with metakaolinite and dissolution in autoclave. The dissolving effectivity was evaluated by the concentration of aluminum in alkaline silicate and by the influence to reduce strengths after heat exposition with this inorganic binder.

Słowa kluczowe

EN

innovative foundry technologies; innovative foundry materials; binders preparation; foundry sand mixtures

PL

innowacyjne technologie odlewnicze; innowacyjne materiały odlewnicze; spoiwo; piasek odlewniczy

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 2
• Strony: 37--40
• Opis fizyczny: Bibliogr. 2 poz., rys., tab.

Twórcy

autor

Fridrich R.

autor

Jelinek P.

• Department of Foundry, VŠB--echnical University of Ostrava, 17. listopadu 15/2172, Ostrava-Poruba, 708 33, Česká republika,

Bibliografia

• [1] F. Škvára, Alkali activated material - geopolymer; Alkali acticated materials - research, production and utilization, proceedings of international conference, Prague 2007, p. 661-676, ISBN 978-80-86742-18-2.
• [2] R. Fridrich, Polysialates as alternative binder of foundry sand mixtures. In 4th International PhD Foundry Conference. Brno 2007. ISBN 978-80-214-3496-7.