- Tytuł:
- Effect of atmosphere in a foundry mould on casting surface quality
- Autorzy:
-
Chojecki, A.
Mocek, J. - Powiązania:
- https://bibliotekanauki.pl/articles/382388.pdf
- Data publikacji:
- 2012
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
forma piaskowa
wada powierzchni odlewu
stężenie wodoru
żeliwo sferoidalne
sand mould
defects on casting surface
hydrogen concentration
ductile iron - Opis:
- Changes of gas pressure in the moulding sand in the zone adjacent to mould cavity were analysed during pouring of cast iron. No significant effect of pressure on the surface quality of castings was observed. In the second series of tests, the concentration of hydrogen in the gas atmosphere was measured. It has been found that the value of this concentration depends on metal composition and is particularly high in cast iron containing magnesium. This is due to the reduction of water vapour with the element that has high affinity to oxygen. The presence of hydrogen causes the formation of gas-induced defects on the casting surface.
- Źródło:
-
Archives of Foundry Engineering; 2012, 12, 1; 13-18
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł