Determination of the overheating degree of moulding sand with bentonite - on the grounds of simulation investigations

• Autorzy: Żymankowska-Kumon S. , Holtzer M. , Lelito J. , Dańko R.
• Języki publikacji: EN

Abstrakty

EN

A determination of the heating degree of the moulding sand with bentonite on the grounds of simulating investigations with the application of the MAGMA program, constitutes the contents of the paper. To this end the numerical simulation of the temperature distribution in the virtual casting mould was performed. It was assumed that the mould cavity was filled with a moulding sand with bentonite of a moisture content 3,2 % and bentonite content 8%. A computer simulation can be used for predicting the heating degree of moulding sands with bentonite. Thus, prediction of the active bentonite (montmorillonite) content in individual layers of the overheated moulding sand can be done by means of the simulation. An overheating degree of a moulding sand with bentonite, and thus the bentonite deactivation depends on a temperature of a casting alloy, casting mass, ratio of: masssand : masscasting, moulding sand amount in the mould and contact area: metal - mould (geometry of the casting shape). Generally it can be stated, that the bentonite deactivation degree depends on two main factors: temperature of moulding sand heating and time of its operation.

Słowa kluczowe

EN

green sand; bentonite; simulation; temperature; degradation of montmorillonite

PL

masa formierska; bentonit; symulacja; temperatura; montmorillonit

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 4
• Strony: 176--180
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Żymankowska-Kumon S.

autor

Holtzer M.

autor

Lelito J.

autor

Dańko R.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland,

Bibliografia

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