Studium zabíhavosti tavenin pro účely výroby litých kovových pěn

Abstract

Diploma thesis deals with the topic of metal foams and other highly porous metallic materials, focusing on the possibilities of their production using conventional foundry production processes and technologies. In the framework of the selected technology for the production of cast metal foams (sponges) - the two-stage investment casting process using a polyurethane (PUR) pattern, particular attention is paid notably to the study of castability as a technological characteristic which is a limiting factor for the production of such castings. The theoretical part of this diploma thesis summarizes the previous knowledge in the field of production methods and possibilities of application of cast metallic porous materials, and also presents a theoretical analysis of the castability, especially in terms of the factors that influence it. The content of the practical part is the experimental study of castability in the form of monitoring the influence of selected process parameters of the given technology and the subsequent evaluation for the purpose of defining optimal conditions of the process.