Feeding Against Gravity with Spot Feeders in High Silicon Ductile Iron

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A test pattern, with three different moduli castings was developed to investigate methods to optimise feeding of high silicon ductile cast irons. Different feeder types, modulus, and locations were investigated using both an insulating and an exothermal sleeve material. Porosities were analysed and...

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Autores principales: Vedel-Smith, N.K., Tiedje, N.S.
Formato: Other
Lenguaje:Inglés
Publicado: INTEMA - UNMdP-CONICET 2014
Materias:
Ductile Iron
Spot Feeding
Risering
Solidification
High Silicon
Ram-Up Sleeves
Acceso en línea:http://rinfi.fi.mdp.edu.ar/handle/123456789/55
Aporte de:
RINFI - Facultad de Ingeniería (UNMdP) de Universidad Nacional de Mar del Plata (UNMdP)
id I29-R182-123456789-55
record_format dspace
spelling I29-R182-123456789-552024-07-05T13:38:50Z Feeding Against Gravity with Spot Feeders in High Silicon Ductile Iron Vedel-Smith, N.K. Tiedje, N.S. Ductile Iron Spot Feeding Risering Solidification High Silicon Ram-Up Sleeves A test pattern, with three different moduli castings was developed to investigate methods to optimise feeding of high silicon ductile cast irons. Different feeder types, modulus, and locations were investigated using both an insulating and an exothermal sleeve material. Porosities were analysed and classified using X-ray imaging and ultrasound analysis. The effect of the different feeder configurations were classified in reference to defect location, sleeve material, and feeder type, modulus, and location. The analysis showed that exothermal feeder sleeves with the right configurations can feed uphill against gravity. This effect may contribute to the thermal expansion created by the exothermal reaction. It was also found that the optimum feeder size does not scale linearly with the casting modulus but that larger casting modulus requires relatively smaller modulus feeders. The thermal gradient created by the feeders made with the insulating sleeve material was not sufficient to significantly improve feeding. 2014-11-13 Other 10 Th International Symposium on the Science and Processing of Cast Iron. 2014. Argentina: Mar del Plata 10 to 13th of November. 978-987-45833-0-7 http://rinfi.fi.mdp.edu.ar/handle/123456789/55 en INTEMA - UNMdP-CONICET
institution Universidad Nacional de Mar del Plata (UNMdP)
institution_str I-29
repository_str R-182
collection RINFI - Facultad de Ingeniería (UNMdP)
language Inglés
topic Ductile Iron
Spot Feeding
Risering
Solidification
High Silicon
Ram-Up Sleeves
spellingShingle Ductile Iron
Spot Feeding
Risering
Solidification
High Silicon
Ram-Up Sleeves
Vedel-Smith, N.K.
Tiedje, N.S.
Feeding Against Gravity with Spot Feeders in High Silicon Ductile Iron
topic_facet Ductile Iron
Spot Feeding
Risering
Solidification
High Silicon
Ram-Up Sleeves
description A test pattern, with three different moduli castings was developed to investigate methods to optimise feeding of high silicon ductile cast irons. Different feeder types, modulus, and locations were investigated using both an insulating and an exothermal sleeve material. Porosities were analysed and classified using X-ray imaging and ultrasound analysis. The effect of the different feeder configurations were classified in reference to defect location, sleeve material, and feeder type, modulus, and location. The analysis showed that exothermal feeder sleeves with the right configurations can feed uphill against gravity. This effect may contribute to the thermal expansion created by the exothermal reaction. It was also found that the optimum feeder size does not scale linearly with the casting modulus but that larger casting modulus requires relatively smaller modulus feeders. The thermal gradient created by the feeders made with the insulating sleeve material was not sufficient to significantly improve feeding.
format Other
author Vedel-Smith, N.K.
Tiedje, N.S.
author_facet Vedel-Smith, N.K.
Tiedje, N.S.
author_sort Vedel-Smith, N.K.
title Feeding Against Gravity with Spot Feeders in High Silicon Ductile Iron
title_short Feeding Against Gravity with Spot Feeders in High Silicon Ductile Iron
title_full Feeding Against Gravity with Spot Feeders in High Silicon Ductile Iron
title_fullStr Feeding Against Gravity with Spot Feeders in High Silicon Ductile Iron
title_full_unstemmed Feeding Against Gravity with Spot Feeders in High Silicon Ductile Iron
title_sort feeding against gravity with spot feeders in high silicon ductile iron
publisher INTEMA - UNMdP-CONICET
publishDate 2014
url http://rinfi.fi.mdp.edu.ar/handle/123456789/55
work_keys_str_mv AT vedelsmithnk feedingagainstgravitywithspotfeedersinhighsiliconductileiron
AT tiedjens feedingagainstgravitywithspotfeedersinhighsiliconductileiron
_version_ 1807948689648386048

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