Kinetics of hardening and drying of ceramic moulds with the new generation binder – colloidal silica

• Autorzy: Zych J. , Kolczyk J.
• Języki publikacji: EN

Abstrakty

EN

The influence of selected factors on drying ceramic moulds applied in the investment casting technology was determined by the gravimetric method. Moulds produced of ceramic sands based on the new generation binders – colloidal silica, were investigated. It was found that each successive layer, of a similar thickness, is drying longer than the previous one. The drying time of layers forming closed spaces is several times longer as compared with drying open surfaces (external). Grain size of matrix used for moulds sprinkling has none significant influence on drying rates.

Słowa kluczowe

EN

innovative foundry technologies; innovative foundry materials; colloidal binder; investment casting; drying rate; technological factor

PL

innowacyjna technologia odlewnicza; innowacyjne materiały odlewnicze; spoiwo koloidalne; szybkość suszenia; czynnik technologiczny

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2013
• Tom: Vol. 13, iss. 4
• Strony: 112--116
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Zych J.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Reymonta 23, 30-059 Cracow, Poland

autor

Kolczyk J.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Reymonta 23, 30-059 Cracow, Poland

Bibliografia

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• [4] Karwiński, A. (1999). Ecosil - water-based binder for investment casting. Biuletyn Instytutu Odlewnictwa. 5, 3-15.
• [5] Karwiński, A. (1997). The influence of the colloid silica content on the properties of liquid ceramic slurry used in investment casting. Krzepniecie Metali i Stopów. 31, 89-96.
• [6] Lechowa, L. & Stachańczyk, J., Łepniak. (1980). Investment casting. Instytut Odlewnictwa. 3, 680-683.
• [7] Piłkowski, Z. & Nadolski, M. (2004). Some strenght problems of sheell molds for investmens casting. Archives of Foundry. 4(14), 413-419.
• [8] Zych, J. (2006). Method of examining the hardening process of core and moulding sand mixes containing a hardenable binder. Akademia Górniczo-Hutnicza: G01N 29/00 (2006.01) Polska- opis patentowy; PL 192202 B1.
• [9] Zych, J.(2006). Moulding sands surface layer-kinetics of the changes its property. Archiwum Odlewnictwa. 6(20), 77-84.
• [10] Zych, J. (2006). Application of the novel ultrasonic method in the on line research of the setting, and hardening process of ceramic materials. Inżynieria Materiałowa. XXVII. 151.