Desarrollo de la metodología de ensayos aplicados a espumas de poliuretano utilizadas en asientos de vehículos según la Norma NTE 2020.

Abstract

With the change of productive matrix that pushes the Ministerio de Industrias y Productividad (MIPRO), the local auto parts companies experiment a relevant growing face to the demand and the diversification of offer to the market, it is necessary the applying of technical norms that determine the specifications that must fulfil a product. With the desire for verifying the fulfilment of stablished specifications for car seats in INEN 2020 and INEN – ISO 5999 standards, the methodologies have been developed in order to evaluate the consistency of polyurethane foam, for which seven representative tests for the realization of current research degree work, starting with an approach with ESPROM company, the same that builds car seats with flexible foam of polyurethane type HM of high resilience. The tests were carried out applying the outlined procedures in the standards, using existent equipment in the labs of Mechanical Faculty and other external labs. The test tubes were conditioned according to the description of standards, then the tests were done from which obtained result that were compared with the values and specifications were described in the standards. From the obtained results it is concluded that the flexible foams of polyurethane type HM of high resilience produced by the ESPROM Company, are consistent, demonstrating that the car seats of national manufacturing, fulfil with the appropriate standards, reaching the safety and quality in the product.