- Tytuł:
- The Effect of Metal Pouring Conditions on the Formation of Defects in the Casting
- Autorzy:
-
Sowa, L.
Skrzypczak, T.
Kwiatoń, P. - Powiązania:
- https://bibliotekanauki.pl/articles/946863.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
castings defects
solidification process
numerical modelling
molten metal flow
wady odlewów
proces krzepnięcia
modelowanie numeryczne
metal ciekły - Opis:
- The mathematical model and numerical simulations of the solidification of a cylindrical casting, which take into account the process of the mould cavity filling by liquid metal and the feeding of the casting through the conical riser during its solidification, are proposed in the paper. The interdependence of thermal and flow phenomena were taken into account because they have an essential influence on solidification process. The effect of the pouring temperature and pouring velocity of the metal on the solidification kinetics of the casting was determined. In order to obtain the casting without shrinkage defects, an appropriate selection of these parameters was tried, which is important for foundry practice. The velocity fields have been obtained from the solution of Navier-Stokes equations and continuity equation, while temperature fields from solving the equation of heat conductivity containing the convection term. In the solidification modelling the changes in thermo-physical parameters as a function of temperature were considered. The finite element method (FEM) was used to solve the problem.
- Źródło:
-
Archives of Foundry Engineering; 2020, 20, 2; 31-36
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł