- Tytuł:
- Ceramic filters for bulk inoculation of nickel alloy castings
- Autorzy:
-
Binczyk, F.
Śleziona, J.
Gradoń, P. - Powiązania:
- https://bibliotekanauki.pl/articles/379709.pdf
- Data publikacji:
- 2011
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
nickel superalloy
ceramic filter
CoAl2O4 inoculant
compression strength
nadstop niklu
filtr ceramiczny
inokulant CoAl2O4
wytrzymałość na ściskanie - Opis:
- The work includes the results of research on production technology of ceramic filters which, besides the traditional filtering function, play also the role of an inoculant modifying the macrostructure of cast nickel alloys. To play this additional role, filters should demonstrate sufficient compression strength and ensure proper flow rate of liquid alloy. The role of an inoculant is played by cobalt aluminate introduced to the composition of external coating in an amount from 5 to 10 wt.%. The required compression strength (over 1MPa) is provided by the supporting layers, deposited on the preform, which is a polyurethane foam. Based on a two-level fractional experiment 24-1, the significance of an impact of various technological parameters (independent variables) on selected functional parameters of the ready filters was determined. Important effect of the number of the supporting layers and sintering temperature of filters after evaporation of polyurethane foam was stated.
- Źródło:
-
Archives of Foundry Engineering; 2011, 11, 3 spec.; 29-32
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł