Detail publikace
State of the art of metal reoxidation study of iron castings
ELBEL, T. ŠENBERGER, J. ZÁDĚRA, A. VLADÍK, R.
Anglický název
State of the art of metal reoxidation study of iron castings
Typ
Článek recenzovaný mimo WoS a Scopus
Jazyk
en
Originální abstrakt
Metal reoxidation causes a number of iron castings defects, particularly when pouring them in green-sand moulds. One of them is pinholes the occurrence of which is explained by several hypotheses. One of possible causes is reoxidation processes in the foundry mould cavity. During its flowing in the gating system and in the mould cavity the liquid metal gets into contact with oxygen from air and water vapour. Secondary oxidation of elements takes place in sequence of their affinity to oxygen. Therefore the authors were aimed at cast irons. Besides indirect methods the reoxidation was researched mainly by direct measurement of oxygen activity during filling of a mould up to solidus temperature. Continuous monitoring of oxygen activity changes in a foundry mould is an original solution since other authors have done their measurements only in a furnace with disposable sensors. Obtained results have confirmed that oxygen activity measurement can serve to the casting quality control. But it is little sensitive for explanation of processes running in a cavity during metal casting.
Klíčová slova anglicky
metal reoxidation, oxygen activity measurements, iron castings
Vydáno
2007-11-15
ISSN
1897-2764
Časopis
Archives of materials Science and Engineering
Ročník
28
Číslo
11
Strany od–do
649–652
Počet stran
4
BIBTEX
@article{BUT43957,
author="Tomáš {Elbel} and Jaroslav {Šenberger} and Antonín {Záděra} and Radoslav {Vladík}",
title="State of the art of metal reoxidation study of iron castings",
journal="Archives of materials Science and Engineering",
year="2007",
volume="28",
number="11",
pages="649--652",
issn="1897-2764"
}