Písek a jeho využití pro slévárenské účely

Abstract

Bachelor thesis describes the use in the foundry industry and their subsequent regeneration. The most common opening materials are quartz, mainly because of their economy and the appropriate granularity Their disadvantage is the thermal expansion (flowed), reactivity (increased) and silikosa. Another of my work is applicable to the types of regeneration regeneration grog. The best mechanical regeneration is mainly for economic reasons. The most effective method of regeneration is thermal regeneration of grog. During this recovery is returned to the circulation up 98% of the opening material. The big disadvantage is the high energy demands.