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Abstract(s)
O presente trabalho foi realizado durante um perĆodo de estĆ”gio, em contexto industrial numa empresa do setor de compĆ³sitos de cortiƧa e surge da necessidade de melhorar, investigar e desenvolver processos, assim como a sua normalizaĆ§Ć£o. Este subentende trĆŖs subprojectos, que foram desenvolvidos ao longo do projeto principal. O primeiro, sobre expansĆ£o de cortiƧa atravĆ©s da aĆ§Ć£o de vapor sobreaquecido. Esta Ć© uma tecnologia patenteada, onde foram revistos os pressupostos desta e comparados com o momento inicial de observaĆ§Ć£o do equipamento. ApĆ³s, foram restabelecidas as condiƧƵes de funcionamento e realizado um exaustivo trabalho de testes, de forma a chegar Ć parametrizaĆ§Ć£o que permitisse a obtenĆ§Ć£o de melhores resultados. Os resultados de expansĆ£o tiveram um acrĆ©scimo de 480% face Ć parametrizaĆ§Ć£o inicial, obtendo-se valores de expansĆ£o da cortiƧa de 35%. O segundo, prende-se com a necessidade de um ramp-up a um equipamento, um moinho de facas. Para esta otimizaĆ§Ć£o foi utilizada a metodologia DOE, onde foi construĆdo um modelo de output em funĆ§Ć£o do input, com 80% de capacidade em justificar o resultado final. Foram realizadas duas sĆ©ries de testes de forma a ser possĆvel uma conclusĆ£o, tendo sido determinada a influencia de cada parĆ¢metro, assim como a parametrizaĆ§Ć£o ideal. Contudo, esta nĆ£o foi capaz de atingir o objetivo de produĆ§Ć£o uma vez que foi sentida a necessidade de repensar os componentes a utilizar no equipamento, de forma a que o valor Ć³timo (para aquele conjunto de inputs cumprisse o objetivo. A Ćŗltima parte relaciona-se com a necessidade de criar uma base para a gestĆ£o de conhecimento, assim como a sua padronizaĆ§Ć£o, de forma a que seja possĆvel criar uma base e partir destas, a implementaĆ§Ć£o de melhorias. Ao longo de todo o processo, todos os equipamentos foram submetidos Ć criaĆ§Ć£o de normas, realizadas atravĆ©s de OPL, num total de 25 instruƧƵes de trabalho.
The present work was carried out during an internship period, in an industrial context in a company in the cork composites sector and arises from the need to improve, investigate and develop processes, as well as its normalization. This implies three subprojects, which were developed in the course of the main project. The first, on expansion of cork, through the action of overheated steam. This is a patented technology, where its assumptions were reviewed and compared with the initial moment of observation of the equipment. Afterwards, the operating conditions were restored, and an exhaustive test work was carried out, in order to reach the parameterization that would allow the best results to be obtained. The expansion results had an increase of 480% compared to the initial, obtaining cork expansion values of 35%. The second concerns the need for a ramp-up to equipment, a knife mill. For this optimization, the DOE methodology was used, where an output model was built according to the input, with 80% capacity to justify the output. Two series of tests were carried out to make a conclusion possible. The influence of each parameter was determined, as well as the ideal parameterization. However, it was not able to achieve the objective. The need was felt to rethink the components to be used in the equipment, so that the optimal value for that set of inputs would fulfill the objective. The last part relates to the need to create a base for knowledge management, as well as its standardization, so that it is possible to create a base in order to implement improvements. Throughout the process, all equipment had the creation of standards, carried out through OPL, in a total of 25.
The present work was carried out during an internship period, in an industrial context in a company in the cork composites sector and arises from the need to improve, investigate and develop processes, as well as its normalization. This implies three subprojects, which were developed in the course of the main project. The first, on expansion of cork, through the action of overheated steam. This is a patented technology, where its assumptions were reviewed and compared with the initial moment of observation of the equipment. Afterwards, the operating conditions were restored, and an exhaustive test work was carried out, in order to reach the parameterization that would allow the best results to be obtained. The expansion results had an increase of 480% compared to the initial, obtaining cork expansion values of 35%. The second concerns the need for a ramp-up to equipment, a knife mill. For this optimization, the DOE methodology was used, where an output model was built according to the input, with 80% capacity to justify the output. Two series of tests were carried out to make a conclusion possible. The influence of each parameter was determined, as well as the ideal parameterization. However, it was not able to achieve the objective. The need was felt to rethink the components to be used in the equipment, so that the optimal value for that set of inputs would fulfill the objective. The last part relates to the need to create a base for knowledge management, as well as its standardization, so that it is possible to create a base in order to implement improvements. Throughout the process, all equipment had the creation of standards, carried out through OPL, in a total of 25.
Description
Keywords
CortiƧa ExpansĆ£o Processo DOE IndĆŗstria Standard Work OPL Cork Expansion Process Industry Standard Work