Opravy vad odlitků tmelením a impregnací

Abstract

Bachelor thesis deals with sealing and impregnation of casting defects. Describes the casting defects and their classification as well as the defects which are repairable by sealant, impregnation and why these repair methods are preferable over other methods. In this work are listed types of sealants, their characteristics and composition. The practical part of the thesis engageds visits of two foundry companies. Visit of foundry Tafonco and company Slévárny Třinec. It states what materials and sealants these businesses operates with and how often repairs with sealing are performed. Then, this work describes the procedure sealing that I tried on two castings. I quote what materials have been used and evaluate the whole process.