Estudo sobre o desempenho dos marteletes usados em moinho feito com feixe de mola usado.

• Autor(a) principal: Souza, Dhônes Martins de
• Data de Publicação: 2020
• Outros Autores: Lima, Francisco das Chagas Soares, Silva, Wenyson Canuto da
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório do Centro Universitário Braz Cubas
• Texto Completo: https://repositorio.cruzeirodosul.edu.br/handle/123456789/1528
• topic: Aço manganês (ASTM 128 M-Gr A),; Martelos de feixe de mola usado,; Ensaios mecânicos,; Aço SAE 5160.; 3.05.00.00-1 Engenharia Mecânica

Hammers are one of the components responsible for the fragmentation of ores and scrap, among the types most used on the market are hammers made of manganese steel (ASTM 128 M-Gr A). However, the object of study in this article is a hammer made from a used spring beam. We know that steel is used in many ways due to its versatility, in addition to its durability and resistance. In addition to the economy, it is possible to observe several benefits, mainly in relation to the environmental issue, which prevents them from being eliminated in the environment, where they can cause great damage to nature. The rationale reflects the specific objectives of demonstrating the most used equipment in crushing as well as the mechanical and economic viability of this model. For the methodology of this study, laboratory tests of hardness, traction and metallography were performed. The samples were taken from different parts of the spring, through grinder cuts. In the metallography tests it was possible to observe the microstructure of the samples, detecting materials of martensitic structures. From the hardness test, we found materials with a high hardness, reaching more than 400HB, in the case of the SAE 5160 steel spring.