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Defects in steel castings
Jakubec, Petr ; Kaňa, Václav (referee) ; Pernica, Vítězslav (advisor)
This bachelor’s thesis deals with the problems of defects that occur in steel castings. First, the use of steel in the foundry industry and the development of classification of casting defects are described. Furthermore, it defines the term ‘casting defect’ and its division. The main part of the thesis focuses on the most frequent defects in steel castings. The aim of this literature search is to describe the casting defects and their causes and to present possible precautions against their rise. Possible ways of removing the casting defects are discussed as well as their repairs.
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Manufacture of cast iron mortar replica
Myška, Martin ; Pernica, Vítězslav (referee) ; Kaňa, Václav (advisor)
This bachelor thesis deals with the complete production technology of mortar replica. The first part describes the historical development of mortar and pestle in Bohemia and in the world. In the second part there is the description of the technological process of production of models and the methods of molding process. Finally, the production of the mold, subsequent casting and purifying process of the mortar are documented.
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Manufacture and use of high-alloy steel castings
Koláček, David ; Kaňa, Václav (referee) ; Pernica, Vítězslav (advisor)
This thesis includes material issue-knowledge of stainless steel cast. In the first part of thesis are analysed the causes of corrosion, its impact on metal material and is explained the creation of corrosion resistance.The next part of thesis introduces separation of stainless steel based on structure and chemical composition, explains its properties and its possibilities of using in practise. The thesis also explain some production processes of the stainless steel cast. In the final part of thesis are illustrated some possibilities of using stainless steel in practise.
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Electric induction furnaces in foundries
Bruštík, Josef ; Kaňa, Václav (referee) ; Šenberger, Jaroslav (advisor)
The main aim of this Bachelor thesis is to create a technical summary on the topic of “The electric induction furnaces in foundries” and be more closely familiar with this issue. A division of furnaces and ways of melting by particular types of furnaces are briefly described. On the basis of gained knowledge, an evaluation of economic and technical advantages of these melting devices was performed and subsequently it is recommended for further usage in the foundries.
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History of ferrous alloy manufacture at Czech-Moravian Highlands
Kolníková, Eliška ; Kaňa, Václav (referee) ; Šenberger, Jaroslav (advisor)
This thesis deals with the history of steel production focused on the Czech-Moravian Highlands in the 14th – 19th century. The introduction provides a survey of chemical and physical reactions taking place in the steel production. The next chapter focuses on technology of production of raw iron and steel, there are also mentioned raw materials and equipment for their production. The last part deals with the various localities in the Czech-Moravian Highlands in the 14th - 19 century.
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History of steelmaking
Houzar, David ; Kaňa, Václav (referee) ; Šenberger, Jaroslav (advisor)
Bachelor´s thesis is a technical summary describing the history of steelmaking. It is focused on time period from 1950s to nowadays. There has been mentioned the ancient history of steelmaking and ironmaking. The thesis also deals with kinds, composition and structures of the steel, with principle of making row iron and also priciples of steelmaking – electric furnace, oxygen converter and basic procedures of secondary metallurgy. There is mentioned a direct making of iron from the ore as well.
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History of steelmaking
Pešek, Jakub ; Kaňa, Václav (referee) ; Šenberger, Jaroslav (advisor)
This work aims to capture the historical development of treatment technology of iron and steel from the very beginning until about the 60th of the last century. To familiarize readers with the basic materials that are necessary for production of iron and history of procedurs that were and are important for the quality of the material . Another aim is to describe the basic furnaces and forges, which were used during this time and are still used.
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Compacted graphite cast iron
Švábenský, Petr ; Kaňa, Václav (referee) ; Laštovica, Jaroslav (advisor)
This labor search to summarize the known properties and methods of production of compacted graphite iron. The first part describes the structure, chemical composition, properties and uses. The second part focuses on the possibility of production of vermicular cast iron. Inoculation options and treatment and various manufacturing processes.
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Progressive anticorrosive metal materials
Bombera, Mojmír ; Kaňa, Václav (referee) ; Šenberger, Jaroslav (advisor)
This bachelor thesis is aimed at stainless steels problem. At the beginning history of steel and one of the biggest issue of steel, corrosion is described. Next part show basic type of stainless steels, their material characteristic, properties and possibilities of usage. After that metallurgy of stainless steels and process follows. In last topic of this bachelor work samples of usage in various branges are presented.
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