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Abstract(s)
A indústria de moldes é um setor inovador e de alta intensidade tecnológica. Portugal é internacionalmente reconhecido como um dos principais produtores de moldes de precisão para a indústria de plásticos e tem aumentado, cada vez mais, o seu valor, com competências especializadas desde a área do design e engenharia, até à produção de peças finais. Este trabalho teve como principal objetivo proceder ao projeto de um molde para uma peça de grandes dimensões, injetada com agente expansor para a indústria alimentar. Devido à sua forma e dimensão, foi preciso ter especial atenção à metodologia de extração a adotar, no momento de serem tomadas as decisões da mecânica do molde. Foi também realizado o estudo reológico do molde, recorrendo ao software Autodesk® Moldflow Insight 2018, onde foram comparadas as simulações sem agente expansor e com agente expansor, para melhor compreender as vantagens e desvantagens deste processo. O projeto foi realizado com sucesso, e as vantagens dadas pelo agente expansor bem aproveitadas.
The mold industry is an innovative and high technology sector. Portugal is internationally recognized as one of the leading producers of precision molds for the plastics industry and has progressively increased its value, with expertise from the area of design and engineering to the production of final parts. This work had as main objective to proceed with the design of a mold for a large part injected with blowing agent for the food industry. Due to its shape and dimension, it was necessary to pay special attention to the extraction methodology to be adopted at the time of making the mold mechanics decisions. It was also carried out the rheological study of the mold with a normal injection and another one with expander, so that the advantages and disadvantages of this process could be understood. The project was successfully carried out, and the advantages given by the blowing agent well utilized.
The mold industry is an innovative and high technology sector. Portugal is internationally recognized as one of the leading producers of precision molds for the plastics industry and has progressively increased its value, with expertise from the area of design and engineering to the production of final parts. This work had as main objective to proceed with the design of a mold for a large part injected with blowing agent for the food industry. Due to its shape and dimension, it was necessary to pay special attention to the extraction methodology to be adopted at the time of making the mold mechanics decisions. It was also carried out the rheological study of the mold with a normal injection and another one with expander, so that the advantages and disadvantages of this process could be understood. The project was successfully carried out, and the advantages given by the blowing agent well utilized.
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Keywords
Indústria de moldes Setor inovador Agente expansor Mecânica do molde Mold industry Innovative sector Blowing agent Mold mechanics