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Possibilities of using filtration in lost wax technology
Boček, Vítězslav ; Soukupová, Lucie (referee) ; Horáček, Milan (advisor)
Final thesis, elaborated within the bachelor study field of Manufacturing technology, deals with literary analysis of using filtration in lost wax technology and with designing of best gating system for those filters. As result of this thesis the best criteria for choosing the best filter for aplication in lost wax casting and literary study maping possibilities of locating those filters in gating system was compiled.
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Actual trends in manufacture of ceramic shell moulds
Štipl, Pavel ; Vašťák, Patrik (referee) ; Horáček, Milan (advisor)
This thesis deals with the current trends in the production of ceramic shell moulds. The first part describes the history of investment casting, their use and an overview of world production. In the following parts is out of print the production process of ceramic shell mould using contemporary materials and technologies. The final section describes the defects associated with the production of ceramic shell moulds. The aim of this work is to create a literature search focused on raw materials and processes used to create a ceramic shell mould for investment casting technology.
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Water soluble cores for aluminum alloys and their influence on the surface quality of castings
Blažík, Petr ; Tomek, Ladislav (referee) ; Kaňa, Václav (advisor)
The goal of this thesis is to examine a possible influence of the water soluble cores on the microstructure of commonly used aluminum alloys AlSi7Mg and AlSi10Mg in the lost wax technology. This thesis only deals with the changes of the eutecticum on the contact surface between the metal and the core and its surroundings where interactions can appear between the core based on the alkali salts NaCl and KCl and the alloy modified by sodium or strontium. The experimental part investigates the influence of the alkali salts on the modification additives and the modification of the structure itself.
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Present state of investment casting technology
Bártů, Zbyněk ; Horenský, Jiří (referee) ; Horáček, Milan (advisor)
.The bachelor’s thesis is focused on the most modern and latest trends used in investment casting technology. The aim of this bachelor thesis is literary research on the most modern equipment that used wax pattern manufacture, ceramic shell manufacture, de-waxing, metal pouring and finishing operation. The first part describes the history and development of the investment casting technology. The following chapters disclose a general procedure for the production of the investment casting technology and equipment suitable for its manufacture.
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Production of real component by lost wax casting technology
Remeš, David ; Kolář, Ladislav (referee) ; Jaroš, Aleš (advisor)
This thesis deals with the real production of component by using investment casting technology. The thesis describes characteristics of investment casting technology, subsequently construction of 3D component, production of silicone mould, production of wax (plastic) of the model component. At the end of the work is provided technical and economic evaluation.
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Water soluble cores for aluminum alloys and their influence on the surface quality of castings
Blažík, Petr ; Tomek, Ladislav (referee) ; Kaňa, Václav (advisor)
The goal of this thesis is to examine a possible influence of the water soluble cores on the microstructure of commonly used aluminum alloys AlSi7Mg and AlSi10Mg in the lost wax technology. This thesis only deals with the changes of the eutecticum on the contact surface between the metal and the core and its surroundings where interactions can appear between the core based on the alkali salts NaCl and KCl and the alloy modified by sodium or strontium. The experimental part investigates the influence of the alkali salts on the modification additives and the modification of the structure itself.
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Optimation of manufacturing technology of high value castings
Šmíd, Dušan ; Vašťák, Patrik (referee) ; Horáček, Milan (advisor)
The main target of this thesis is to choose the suitable hard filled wax for the invest-ment casting foundry Fimes a.s. There are several suppliers of these waxes in the World and in this work waxes of the most reputable suppliers from Europe have been investigated. During these tests there were mainly technological properties of the waxes and also dimensions of both wax patterns and also the final castings measu-red. Suitability of the tested waxes, their technological characteristics, analysis of di-mensions and finally basic economical calculations have been then used in this the-sis as a tool for the recommendation for the most suitable wax for the Fimes foundry.
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