The change of the gas pressure in cores made in cold-box technology during their hardening

• Autorzy: Zych J. , Jamrozowicz Ł.
• Języki publikacji: EN

Abstrakty

EN

The results of measuring the gas pressure in intergranular spaces as well as the sand temperature in the core box for fast-binding moulding sands, hardened by the reactive gaseous agent, are presented in the paper. The experimental stand and the measurement method were described. Investigations concern the determination and recording of the gas pressure changes in the sand along the hardened core in three measuring points. The hardening gas was delivered in a continuous manner under a constant pressure. The determined pressure changes for the reactive gas (taking part in the chemical reaction of the hardening process) were compared with the pressure changes for the inert gas. In addition, the sand temperature changes during the hardening process were measured.

Słowa kluczowe

EN

cold box process; fast binding moulding sands; carbon dioxide; pressure; temperature; ultrasounds

PL

masa formierska; dwutlenek węgla; ciśnienie gazu; ultradźwięki

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 4
• Strony: 204--208
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr.

Twórcy

autor

Zych J.

autor

Jamrozowicz Ł.

• AGH University of Science and Technology, Department of Foundry, ul. Reymonta 23, 30-059 Kraków, Polska,

Bibliografia

• [1] Darcy H.: "Les fontaines publiques de la ville de Dijon", Dalmont, Paris, 1856.
• [2] Kaczmarek M.: "Aproximate Solution for Non-stationary Gas Permeability Tests", Transport Porous Media 75: 151 - 165, 2008.
• [3] Kaczmarek M.: "Modeling reservoir gas permeability tests for cylindrical and spherical geometry", Transport in Porous Media 84: 95-108, 2010.
• [4] J. Zych: The synthesis of the uses of ultrasonic technique in the analysis of the kinetics of chosen processes setting in moulding sands. AGH Uczelniane Wydawnictwa Naukowo-Dydaktyczne. Seria: Rozprawy i Monografie nr 163, Kraków 2007 (in Polish).
• [5] J. Zych: The setting kinetic of moulding sands with water glass, Acta Metallurgica Slovaca, t.8, (2002), nr 2, s.93-98.
• [6] Zych J., Jamrozowicz Ł.: "Advancement of the hardening front in forms and cores made of quickly bonding composites - ultrasonic analyses", Archives of Metallurgy and Materials 55(3): 963-968, 2010.