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The problems connected with the solidification parameters estimation

Bartocha D.

Archives of Foundry Engineering

2008

Vol. 8, iss. 1

198-208

In the article results of thermo-physical properties estimation are presented. Thermo-physical properties estimation was carried out with trial-and-error method on the base of the model computer simulations results. In the first step the computer simulations of self-cooling and heating processes for different thermo-physical properties of specimen alloy and for proposed two testers geometry was carried out. thermo-physical properties of specimen alloy were artifical, assumed by author. The results of simulation in the form of self-cooling and heating curves were used in the second step of work. In the second step the computer simulations to thermo-physical properties estimation by trial-and-error method was carried out. In these simulations only thermo-physical properties of specimen alloy were estimated, thermophysical properties of others materials and boundary conditions were exactly the same as in model simulations. finally thermo-physical properties assumed in first step were compared to estimated in second step.

Eksperymentalno-symulacyjny sposób identyfikacji strefy przewilżonej w formie

Ignaszak Z., Graczyk L., Popielarski P.

Archiwum Odlewnictwa

2006

R. 6, nr 22

216-223

Badania opisane w artykule dotyczą identyfikacji obecności strefy przewilżonej w masie formierskiej z dodatkiem szkła wodnego, po zalaniu takiej formy ciekłym stopem. Wykonano badania eksperymentalne, a ponadto symulacyjne za pomocą systemu Calcosoft 2D. Przeprowadzono analizę wyników oraz pierwszą próbę walidacji modelu z uwzględnieniem zmienności parametrów termofizycznych masy.

The study described in paper concerns the identification of the over moist zone presence in mould sand with the addition of the water glass after pouring of this mould with liquid alloy. Experimental and simulation examinations were made with the use of the system of Calcosoft 2D. Analysis of results and the first trial of the validation of the model were carried with taking into consideration the changeability of mould sand parameters.