- Tytuł:
- Accuracy of ceramic mould filling with liquid AlSi9 aluminium alloy in the process using back-pressure
- Autorzy:
-
Karwiński, A.
Haratym, R.
Biernacki, R. - Powiązania:
- https://bibliotekanauki.pl/articles/381142.pdf
- Data publikacji:
- 2013
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
casting
back pressure
investment casting process
capillarity phenomena
odlewanie
przeciwciśnienie
metoda wytapianych modeli
zjawisko kapilarne - Opis:
- The paper presents the effect of suction pressure exerted on the liquid AlSi alloy when it is introduced into a ceramic mould made in the investment process and the results compared with data obtained on gravity poured castings. The study used special pattern sets and ceramic moulds made with the alternately applied soluble silicate binder and ethyl silicate. Additionally, self-supported moulds based entirely on the Ekosil binder were used. In the analysis of castings, the following parameters were examined: a linear dimensional accuracy, the state of surface microgeometry and the possibility of metal penetration into a complex ceramic mould, allowing also for the presence of capillary phenomena. In the process of casting with back-pressure, the pressure values of 500 hPa, 600 hPa and 700 hPa were applied in the chamber where the ceramic mould was located, with the temperature of the said mould kept at a level of 150±10ºC.
- Źródło:
-
Archives of Foundry Engineering; 2013, 13, 1; 73-76
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł