Comparação interlaboratorial dos resultados de ensaios de desgaste abrasivo em polímeros, segundo a norma ISO 4649

• Ano de defesa: 2013
• Autor(a) principal: Cunha, Leandro Rodrigues Pinto da
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Engenharia Mecânica; Centro Tecnológico; UFES; Programa de Pós-Graduação em Engenharia Mecânica
• Palavras-chave em Português: Interlaboratory comparison; Polymer abrasive wear; ISO 4649; ASTM E691; Comparação interlaboratorial; Desgaste abrasivo; Engenharia de materiais; Polímeros; Engenharia Mecânica; 621
• Link de acesso: http://repositorio.ufes.br/handle/10/6235

In this work, we conducted a comparative study of the abrasive wear resistance of four polymeric materials used in ore transport in Vale plants, being a polyurethane (used as a scraper) and three elastomers (belt layers and drums coatings). To make such a comparison, pin-on-drum type wear tests were performed, according to ISO 4649, between TRICORRMAT (Federal University of Espírito Santo) and LFS (University of São Paulo). An experimental procedure involving all stages of the test, from the procurement of materials to final storage, was developed jointly between the labs during this work. The determination of repeatability and reproducibility from the testing results were used to validate the experimental procedure. From the mass loss of each material were correlated controllable test parameters such as the sandpaper, the operator and the machine. It was observed that among the mentioned parameters, the machine was the parameter that exerted greater dispersion in the results between laboratories