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Abstract(s)
Esta dissertação foi elaborada em colaboração com a Continental Mabor – Indústria de Pneus S.A., empresa que se dedica à produção de pneus, maioritariamente para a indústria automóvel, sob a forma de estágio curricular. Este projeto teve como principal foco a redução de gastos inerentes à utilização e manutenção das válvulas proporcionais para o processo de vulcanização, procurando assim aumentar o Mean Time Between Failures (MTBF) e reduzir o Mean Time To Repair (MTTR) das mesmas. Para tal, as principais melhorias foram realizadas no âmbito da qualidade das reparações, tanto internas como externas, da gestão de stocks e também na criação de ferramentas, o que inclui a recolha de dados, para que se possam elaborar estudos concretos acerca da atual fiabilidade das válvulas. Apesar de menos enfatizadas, foram efetuadas também algumas melhorias na oficina da Engenharia 5, maioritariamente relacionadas com aspetos de organização e limpeza, aplicando algumas das ferramentas associadas à metodologia Lean.
This dissertation was developed in collaboration with Continental Mabor - Indústria de Pneus S.A., a company that dedicates itself to the production of tires, mainly for the automotive industry, under the form of a curricular internship. The main focus of this project was to reduce the costs inherent to the use and maintenance of proportional valves for the vulcanization process, searching for ways to increase the Mean time Between Failures (MTBF) and reduce the Mean Time To Repair (MTTR) of the latter. To reach that goal, most of the improvements were focused on the quality of the repairs, both internal as external, stock management as well as in the creation of tools, which includes gathering data, for carrying out more concrete studies about the current reliability of the valves. Although less emphasized, there were also carried out some improvements in the Engineering 5 workshop, mostly related to the aspects of organization and cleanliness, applying some of the tools associated with the Lean methodology.
This dissertation was developed in collaboration with Continental Mabor - Indústria de Pneus S.A., a company that dedicates itself to the production of tires, mainly for the automotive industry, under the form of a curricular internship. The main focus of this project was to reduce the costs inherent to the use and maintenance of proportional valves for the vulcanization process, searching for ways to increase the Mean time Between Failures (MTBF) and reduce the Mean Time To Repair (MTTR) of the latter. To reach that goal, most of the improvements were focused on the quality of the repairs, both internal as external, stock management as well as in the creation of tools, which includes gathering data, for carrying out more concrete studies about the current reliability of the valves. Although less emphasized, there were also carried out some improvements in the Engineering 5 workshop, mostly related to the aspects of organization and cleanliness, applying some of the tools associated with the Lean methodology.
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Keywords
Continental Mabor Manutenção Mean Time Between Failures Fiabilidade Lean Maintenance Reliability Control valves Lean philosophy Tire manufacturing Vulcanization process