Examination of Gas Flows in Cores About the Changeable Cross-sections Executed in the Cold-box Technology

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

Abstrakty

EN

The measurement results of the gas pressure in intergranular spaces of fast-setting moulding sands, hardened by a reactive gaseous factor, are presented in the hereby paper. In addition, the new research stand for measuring gas pressure changes in the core of a variable cross-section, during hardening of this core, is shown. The measuring method is also described. Investigations concern determinations and recording of the gas pressure pathways in moulding sands along the core height, in five measuring points. The influence of the hardening gas pressure on the gas distribution in the moulding sand was determined. The influence of the shape change (cross-section) of the core on the character of changes of the hardening gas pressure in the core being hardened, was also shown. The hardening gas of a constant pressure was fed continuously into the core.

Słowa kluczowe

EN

cold-box process; gas flows; pressure measurement; carbon dioxide; moulding sands

PL

cold-box; przepływ gazu; pomiar ciśnienia; dwutlenek węgla; piaski formierskie; hartowanie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2015
• Tom: Vol. 15, iss. 1 spec.
• Strony: 41--46
• Opis fizyczny: Bibliogr. 7 poz., fot., rys., wykr.

Twórcy

autor

Jamrozowicz Ł.

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

autor

Zych J.

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

autor

Kolczyk J.

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

Bibliografia

• [1] Darcy, H. (1856). Les fontaines publiques de la ville de Dijon, Dalmont, Paris.
• [2] Kaczmarek, M. (2008). Aproximate Solution for Non-stationary Gas Permeability Tests, Transport Porous Media 75. 151 – 165.
• [3] Kaczmarek, M. (2010). Modeling reservoir gas permeability tests for cylindrical and spherical geometry. Transport in Porous Media 84: 95-108
• [4] Zych, J. (2002). The setting kinetic of moulding sands with water glass. Acta Metallurgica Slovaca, t. 8. nr 2. 93-98.
• [5] Zych, J. & Jamrozowicz, Ł. (2010). 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.
• [6] Zych, J. & Jamrozowicz, Ł. (2011). The change of the gas pressure in cores made in cold-box technology during their hardening. Archives of Foundry Engineering. vol. 11 iss. 4, 204–208.
• [7] Jamrozowicz Ł. (2013). Influence of the gas dosage method on pressure changes and technological properties of core sand used in the technology resol−CO2. Archives of Metallurgy and Materials. vol. 58 iss. 3. 891–894.