- Tytuł:
- The Effect of a Thin-Wall Casting Mould Cavity Filling Conditions on the Casting Surface Quality
- Autorzy:
-
Trytek, A.
Orłowicz, A. W.
Tupaj, M.
Mróz, M.
Markowska, O.
Bąk, G.
Abram, T. - Powiązania:
- https://bibliotekanauki.pl/articles/382148.pdf
- Data publikacji:
- 2016
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
thin wall casting
grey cast iron
cold shots
computer simulation
odlew cienkościenny
żeliwo szare
symulacja komputerowa - Opis:
- The paper presents results of metallographic examination of faults occurring in the course of founding thin-walled cast-iron castings in furan resin sand molds. A non-conformance of the scab type was Observed on surface of the casting as well as sand buckles and cold shots. Studied the chemical composition by means of a scanning electron microscope in a region of casting defects: microanalysis point and microanalysis surface. Around the observed defects discloses high concentration of oxides of iron, manganese and silicon. A computer simulation of the casting process has been carried out with the objective to establish the cause of occurrence of cold shots on casting surface. The simulation was carried out with the use of NovaFlow & Solid program. We analyzed the flowing metal in the mold cavity. The main reason for the occurrence of casting defects on the surface of the casting was gating system, which caused turbulent flow of metal with a distinctive splash stream of liquid alloy.
- Źródło:
-
Archives of Foundry Engineering; 2016, 16, 4; 222-226
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł