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Publication
Estudo do processo de fabricação de perfis híbridos pultrudidos
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Abstract(s)
A realização deste trabalho teve como principal objectivo proceder ao projecto e
realização de dois sistemas de produção de perfis pultrudidos híbridos a acoplar aos
equipamentos de pultrusão já instalados na ALTO – PERFIS PULTRUDIDOS, Lda. A
realização de perfis pultrudidos híbridos visa melhorar as características de isolamento
térmico e acústico dos tubos habitualmente feitos por pultrusão, incrementando
simultaneamente a sua resistência, através da melhoria do momento de inércia do perfil,
sem que haja um aumento significativo do peso do conjunto. O projecto teve como base
de trabalho dois sistemas de produção completamente distintos: (a) a existência de
barras de cortiça e de poliuretano (pré-formas) sobre as quais se vai efectuar a pultrusão
de um tubo que abraça as barras e (b) o uso de resíduos de pultrusão como forma de
enchimento dos tubos, durante o seu processo produtivo. Estes equipamentos foram
projectados e parcialmente fabricados, antevendo-se que os mesmos entrem em
funcionamento muito brevemente.
The main goal of this work was to create two different hybrid pultrusion manufacturing systems that will be connected to the pultrusion equipment already installed at ALTO – PERFIS PULTRUDIDOS, Lda. The production of hybrid pultruded bars intends to increase the insulation thermal and acoustic properties of the traditional pultruded tubes, improving simultaneously its mechanical strength by increasing the moment of inertia of the common tubes using low weight components. The project was based on two distinct manufacturing approaches: (a) cork and polyurethane bars previously produced manufacturing the pultruded tube around them and (b) the use of pultruded wastes as filling form of the pultruded tubes in a continuous process. These systems were drawn and partially produced, foreseeing that they will be in service soon.
The main goal of this work was to create two different hybrid pultrusion manufacturing systems that will be connected to the pultrusion equipment already installed at ALTO – PERFIS PULTRUDIDOS, Lda. The production of hybrid pultruded bars intends to increase the insulation thermal and acoustic properties of the traditional pultruded tubes, improving simultaneously its mechanical strength by increasing the moment of inertia of the common tubes using low weight components. The project was based on two distinct manufacturing approaches: (a) cork and polyurethane bars previously produced manufacturing the pultruded tube around them and (b) the use of pultruded wastes as filling form of the pultruded tubes in a continuous process. These systems were drawn and partially produced, foreseeing that they will be in service soon.
Description
Keywords
Perfis pultrudidos Pultrusão híbrida Equipamentos de pultrusão Pultruded bars Hybrid pultrusion Manufacturing systems for pultrusion
Pedagogical Context
Citation
Publisher
Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto