Influence of thermal expansion in the utilization of hybrid sands

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F11%3A86081657" target="_blank" >RIV/61989100:27360/11:86081657 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Influence of thermal expansion in the utilization of hybrid sands
Original language description
Nowadays, it is important that foundries casting production will prove minimum production costs with ensuring the highest possible quality. Primarily this is related to elimination of products defects. One of the main causes of defects is the thermal dilatation of the sands in the molding mixtures. Usually used quartz sands demonstrated discontinuous (no-flowing) thermal expansion which is related to dimensional inaccuracies due to changes in modification of SiO2. Dilatation coefficient reports the dimensional changes after heat exposure. The high values of this coefficient define the utilization of this material for the production of thin-walled and very accurate castings. Thermal expansion of molding mixture is determined by dilatometric method, which records linear changes during analysis time. The result of this measurement is the dilatometric curve. Purity, shape, angularity, grain size, bulk density and micro-dilatation of individual grains influence dilatometric values of sands,
Czech name
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Czech description
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Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Den interních doktorandů 2011 : sborník semináře Fakulty metalurgie a materiálového inženýrství : Vysoká škola báňská - Technická univerzita Ostrava, 6.12.2011
ISBN
978-80-248-2523-6
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
15-18
Publisher name
Vysoká škola báňská - Technická univerzita Ostrava, Fakulta metalurgie a materiálového inženýrství
Place of publication
Ostrava
Event location
Ostrava
Event date
Dec 6, 2011
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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