Ingeniería Mecánica

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    Análisis de la flamabilidad de placas de policloruro de vinilo (pvc) utilizadas en tomacorrientes con el fin de determinar su índice de flamabilidad, según la norma NTE INEN-ISO 11925-2.
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2025-02) Guayaquil Peralta, Alexis Gabriel; Espín Guerrero, Víctor Rodrigo
    Fire safety is crucial in construction materials, making the implementation of safety standards with certifications essential to ensure their reliability. This research analyzes the flammability of polyvinyl chloride (PVC) plates used in electrical outlets, evaluated under the NTE INEN – ISO 11925 – 2 standard. The objective of this test is to determine the flammability index of PVC. The material was conditioned to meet the parameters imposed by the standard and exposed to a flame source for 30 and 60 seconds in two configurations: edge and surface, as well as longitudinal and transverse orientations. The parameters evaluated according to the standard included ignition, flame propagation up to 150 mm, material dripping, and filter paper ignition. The gases generated were captured using a gas meter, while thermal characterization and the use of a thermographic camera were valuable in developing a flammability test simulation. The test results were recorded and analyzed according to the standard, helping to determine the flammability index. Due to its characteristics, polyvinyl chloride (PVC) has a low flammability index and was classified based on its fire reaction behavior as: A1 – s2, d0. Finally, the toxicity levels of the emitted gases were analyzed, and the simulation results revealed the percentage variation in temperatures between the actual and simulated scenarios, providing a complementary contribution to this research.
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    Diseño y construcción de un molde de inyección bicolor en aluminio para la producción de suelas de PVC para la microempresa A.T.I. Industrial
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2022-08) Rojas Guevara, Fernando Andrés; Vera Sabando, Ander Daryan; Carrillo Rosero, Carlos Mauricio
    The objective of this project is the development of an injection mold in which a bicolor box-type sole is presented as a product, destined for the production of the A.T.I INDUSTRIAL microenterprise and it was built in cast aluminum. For this, the dima was based on the technical specifications, modeled using CAD software for bicolor injection in order to have the dimensions to build the various parts that conform and determining the quality of the sole through tests. For the previous processes, various changes and verifications were made until a model that meets the expectations for approval was obtained. At the end of the processes, the respective checks were carried out using PVC Expander as raw material, where it was verified that the dimensions, calculations, and design were adequate for the manufacture of the sole. The built mold was used for bicolor injection and can also be used for monocolor. In addition, it will be produced based on tests that there are two factors by which the final product may vary, losing its characteristics depending on the type of material and color, requiring a greater or lesser percentage for the same filling
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    Diseño y construcción de un molde de inyección para fabricación de suelas de PVC para la empresa Carvifactory Cia. Ltda.
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2021-06) Tubón Carpio, Christian Israel; Carrillo Rosero, Carlos Mauricio
    For the realization of this project, the geometric parameters requested by the sponsoring company were taken as a starting point, once they were delimited, the design was carried out considering the machinery and equipment available in the company. Once the design was approved by the company, calculations were made based on the PVC, which is the material to be injected, and the injection machine where the mold would be used, to ensure the correct operation and cooling of the mold. Resulting in estimated feed channel values and ensuring adequate heat dissipation in each injection cycle. Subsequently, the mold was manufactured with the machinery available in the company, performing machining tasks in CNC machines and manual operations according to the need, to finally assemble the mold and mount it in the injection machine for the operation tests, thus validating the calculations and parameters used in the sizing of the mold.