Fundição de precisão utilizando cinza volante de termoelétrica para a produção de peças de zinco com geometria complexa

Abstract

The investment casting process is characterized by an excellent surface finish and close dimensional tolerance of the pieces. This is mainly due to the wax's ease of copying details and their reproduction through the ceramic shell. Therefore, the knowledge of the relationship between processing, microstructure and properties of ceramic shells is of fundamental importance. This work focuses on the development of new precision casting techniques, aiming to obtain metallic parts, by means of gravity casting and which have a complex geometry as a formal characteristic, cost reduction using recycled materials, such as scrap and residual ash. thermoelectric plant for the manufacture of refractory shell. In addition, there was the preparation of the model parts, use of silicone for the production of molds, preparation of the parts in wax and pouring channels, manufacture of refractory ceramic shell, casting of the metallic alloy (Zamac), obtaining of the rustic part and machining process. In this way, we concluded our project by using a polluting material and recycling zinc scrap and, consequently, lowering the costs of this process and there may also be the generation of jobs for needy communities.