Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/38706
Título: | Design and optimization of an extrusion die for the production of wood–plastic composite profiles |
Autor(es): | Gonçalves, Nelson Daniel Ferreira Teixeira, P. Ferrás, Luís Jorge Lima Afonso, A. M. Nóbrega, J. M. Carneiro, O. S. |
Palavras-chave: | Extrusion die design flow balancing Numerical simulation |
Data: | 2015 |
Editora: | Society of Plastics Engineers (SPE) |
Revista: | Polymer Engineering and Science |
Citação: | Gonçalves, N. D., Teixeira, P., Ferrás, L. L., Afonso, A. M., Nóbrega, J. M., & Carneiro, O. S. (2015). Design and optimization of an extrusion die for the production of wood-plastic composite profiles. Polymer Engineering and Science. doi: 10.1002/pen.24024 |
Resumo(s): | In this work, the optimization of an extrusion die designed for the production of a wood–plastic composite (WPC) decking profile is investigated. The optimization was performed with the help of numerical tools, more precisely, by solving the continuity and momentum conservation equations that govern such flow, and aiming to balance properly the flow distribution at the extrusion die flow channel outlet. To capture the rheological behavior of the material, we used a Bird-Carreau model with parameters obtained from a fit to the (shear viscosity versus shearrate) experimental data, collected from rheological tests. To yield a balanced output flow, several numerical runs were performed by adjusting the flow restriction at different regions of the flow-channel parallel zone crosssection. The simulations were compared with the experimental results and an excellent qualitative agreement was obtained, allowing, in this way, to attain a good balancing of the output flow and emphasizing the advantages of using numerical tools to aid the design of profile extrusion dies. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/38706 |
DOI: | 10.1002/pen.24024 |
ISSN: | 0032-3888 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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AI53_Die Design.pdf Acesso restrito! | 442,51 kB | Adobe PDF | Ver/Abrir |