Projeto, construção e aferição de um dispositivo de solidificação unidirecional horizontal refrigerado à água
The aim is about the solidification structures of thermal parameters is important to mechanic behaviour of the metallic materials. These structures are influenced by means of heat removal conditions of metal/ mould system during the solidification process. Despite of this, some mathematic models...
| Autor principal: | SILVA, José Nazareno Santos da |
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| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Pará
2014
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/5565 |
| Resumo: |
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The aim is about the solidification structures of thermal parameters is important to
mechanic behaviour of the metallic materials. These structures are influenced by means of
heat removal conditions of metal/ mould system during the solidification process. Despite of
this, some mathematic models have been developed to appraise the structural and thermal
variation mainly considering the upright unidirectional solidification process . This research
plans to project, construct and check up one device in order to be able to represent the
horizontal unidirectional solidification process cooled by water which considers the solute
convection effects. To check up the solidification device, a comparative study was done
between the representative experimental bend of metal´s thickness solidification related to
time to Al-4%Cu, Sn-5%Pb, Sn-15%Pb e Sn-20%Pb alloys. The present results shows
positive consonances. The unidirectional aspect of the heat removal constructed was estimate
trough the macrostructure characterization of the studied alloys. Finally a comparative study
is done between values of the interface metal/mold heat transfer coefficient obtained trough
other newly works developed about ascendant and descendent unidirectional solidification
process. |