Naslov
Parameters influencing wet tensile strength of moulding mixture

Autori
Budić, Ivan ; Novoselović, Daniel ; Škorić, Stephan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
4th International Conference "Industrial engineering - new challenges to SME" : proceedings / Papstel, J. ; Katalinić, Branko - Talin : University of Technology, 2004, 127-130

Skup
International Conference "Industrial engineering - new challenges to SME" (4 ; 2004)

Mjesto i datum
Talin, Estonija, 29.04.2004. - 30.04.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
scabbing in the mould; influential parameters; wet tensile strength

Sažetak
Scabbing occurs when pouring large size castings, resulting in presence of scabs in castings. Pouring of molten metal exerts following influences on the mould: mechanical influences, chemical and heat influences. Heat introduction dries the mould, so that at the top of the mould cavity we have temperature approximately equal to temperature of the molten metal, which varies depending on the height of the mould. Water content in the mould evaporates and condensate in the mould zone called wet tensile zone, where temperature reaches 100º ; ; C. Consequently we get reduction of mould mixture strength, scabbing, falling and creation of sand scabs on the casting. Numerous variables affect this phenomenon of scabbing, whereby our paper undertakes to examine only a few of them, such as: moisture percentage, bentonit content, medium size of quartz sand and mould compression strength.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA