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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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Lubricants for bicycle chains
Brychta, Ondřej ; Navrátil, Václav (referee) ; Svoboda, Petr (advisor)
This bachelor thesis deals with the lubrication of bicycle chains. The introduction describes the basics of the friction processes, then there is an analysis of the chains used on bicycles, used materials, analysis of forces and wear in the chains. The last part is devoted to the properties of basic types of lubricants, their additives and the possibilities of their use in cycling.
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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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Present state of investment casting technology
Soukupová, Lucie ; Šmíd, Dušan (referee) ; Horáček, Milan (advisor)
The Bachelor’s thesis deals with the latest trends in investment casting technology, from wax pattern manufacture, ceramic shell manufacture, de-waxing, shell heat treatment up to metal pouring and finishing operation. In the first part, the outline of the world production and the usage of investment castings nowadays are introduced. The other parts of the project include the basic technique of using new technologies. The aim of this work is developing a literature search focused on the most modern equipment and raw materials that are used in investment casting technology and testing of wax mixtures and ceramic slurries.
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Properties of polymer modified bitumen for warm mix asphalt
Zábranský, Ivo ; Koudelka, Tomáš (referee) ; Dašek, Ondřej (advisor)
The Diploma thesis is focus on polymer modified bitumen for warm mix asphalt. The theoretical part of the thesis describes additives which influence the properties of bitumen for their use and reduction of production and service temperatures. Further, the theoretical part describes the conclusions from the researches. This part also describes empirical and functional tests of bituminous binders. The practical part presents the results of individual tests. Tests were performed on samples of non-aged, aged by RTFOT and RTFOT + PAV methods. The results of the work and the assessment of the suitability of bituminous binders are summarized at the end of the thesis.
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On the effect of tempering and storage conditions of rubber parts on final joint cohesion
Jílková, Ingrid ; Kalivoda, Milan (referee) ; Píška, Miroslav (advisor)
This bachelor’s thesis deals with an analysis of waxing phases occurrence on the surface of the technical rubber which is used in the automotive industry. The theoretical part of this thesis deals with a composition and manufacturing of the rubber. It is focused on the composition of rubber compounds and waxes. It explains technical properties, reasons (advantages) of the ingredients in the rubber components. Next, it also clarifies the substance of the wax and its use in relation to rubbers. The theoretical part also clarifies the storage of rubber parts and why is it desirable to identify the wax which is separated on free surfaces of rubber. The practical part deals with a suggestion of the identification methods for the waxes on the surface of rubber. It also presents the comparison of the possibilities of the methods used for the identification of wax and its evaluation.
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