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Tribune of athletic stadium in Zlín
Gregor, Martin ; Žižka, Lukáš (referee) ; Vajkay, František (advisor)
The Diploma thesis deals with the processing of project documentation of tribune construction and sporting facilities of athletic stadium in Zlin. Project documentation and attachments are processed according the current legislation, regulations and standards. The tribune is situated on a plot 1090/26, st.5541, which belongs to cadastral area of municipality Zlín, Hradská 854, Zlín. The premises takes up ground plan area of 988,5m2 and the carrying system is designed by skeletal system from prefabricated pieces. This three-storey building lies in natural slope and partly is embedded into in. Capacity of tribune is about 650 spectators and sporting facilities can use about 90 persons.
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Heat treatment of hand tightening tools
Gregor, Martin ; Kouřil, Miloslav (referee) ; Doležal, Pavel (advisor)
Bachelor´s thesis deals with problems of heat treatment of hand tightening tools. Literary analysis is focused on the principles of heat treatment such as annealing, austenitizing, quenching and tempering. Attention is also focused on unconventional heat treatment technology using vacuum and furnace atmospheres based on nitrogen. Analysis of dividing and heat treatment of tool steels is another subject of literary research. In the experimental part are machinery and technological progress of the stock in the company Wera Werk s.r.o., which has more than 50 years engaged in the manufacture, sales and innovation of hand tightening tools. Following processing of the experimental material with a focus on heat treatment and mechanical properties indicate in laboratory tests. Based on the measured and statistically processed values of mechanical quantities is developed design optimization process of heat treatment of hand tightening tools of Wera Werk.
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Trends in geographical information systems applications in waste management
Polášek, Marek ; Gregor, Jiří (referee) ; Pavlas, Martin (advisor)
The objective of this bachelor thesis is explanation of geographical information system issue and their application in waste management. The first part introduces the concepts of geographical information system and waste management, second part deals with usual GIS applications in waste management including the perspective trends, third part contains the overview of existing GIS software solutions and platforms including the mobile apps. Fourth part presents the specific design of GIS system for waste management.
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Formation of Hypereutectic Aluminium Alloys Using Sacrificial Coatings
Gregor, Martin ; Jech, David (referee) ; Čelko, Ladislav (advisor)
Master‘s thesis deals with the forming of hypereutectic aluminium alloys using sacrificial coatings. Literature research is focused on analysing the characteristics of aluminium and its alloys. Attention is also focused to the heat treatment of aluminium alloys and the influence of alloying elements on these alloys. Analysis of characteristics and increase the useful properties of Al - Ni alloys is another object of literary research. Attention is also focused to the analysis of thermal spraying methods by focusing on the principle of individual methods and the characteristics of the coatings made by these methods. The object of experimental part is to prepare the hypereutectic aluminium alloys using sacrificial nickel based coatings. This is an unconventional manufacturing process comprising coating the surface of the aluminium substrate with using HVOF technology and subsequent thermal exposure. Furthermore, the work deals with the metallographic evaluation of prepared samples with a particular focus on the influence of temperature and time of heat treatment on the final structure of the experimental samples.
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Effective management of plastic waste
Kostková, Kateřina ; Pavlas, Martin (referee) ; Gregor, Jiří (advisor)
The main content of the submitted diploma thesis is the implementation of analysis of separated plastic waste and examination of the issue of extrusion tests. The practical knowledge is preceded by a search of waste management in the Czech Republic and get acquainted with the issue of polymer materials. The research is about plastic waste management and preparation of polymeric materials for extrusion tests. Theoretical knowledge is then applied in the practical implementation of extrusion tests.
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Effective proposal and operation of recycling line as an element in waste management
Dufka, Martin ; Janošťák, František (referee) ; Gregor, Jiří (advisor)
This master thesis deals with the current situation of waste management of material usable municipal waste with focus on various fractions of plastics. The theoretical part summarises the legislation of waste treatment, also contains an analysis of the current situation of waste management in the Czech Republic and comparison the situation in the European Union. In the next part of thesis are described basic fractions of plastics and their properties. There are mentioned the current problems with plastics processing and the risks of leakage to the environment. Furthermore, a complex chain of plastic waste reprocessing is described, since the inception of plastics waste to the manufacture of products made from recycled plastics. The most attention is paid to the discription of recycling plant, where the output material from sorting lines is reprocessed into a secondary material in the form of flakes or granules. Also this part is focused on the technology of recycling line and the individual devices are described. In the practical part of the thesis is created techno-economic model of recycling line with the aim of its use for balance calculations of recycling and also economic evaluation. As a part of the model was made a market research of secondary raw materials with a focus on price development. Subsequetly, sensitivity analyzes of selected parameters are applied to the model and the impact of scenarios on the economic results are evaluated.
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Optimalization of ultrasonic interconnection
Gregor, Pavel ; Hejátková, Edita (referee) ; Buršík, Martin (advisor)
The thesis summarizes the basic knowledge of Wirebonding. It also closely studying the various influences on the final shape, strength and reliability of the bonds. In the experimental part are found the optimal settings of various wire bonders. For wire bonder TPT HB-10 are found the optimal settings for different types of surfaces, which were contacted.
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Transportation systems in waste management
Koutná, Marie ; Pavlas, Martin (referee) ; Gregor, Jiří (advisor)
The aim of the thesis is to elaborate on transport systems in waste management as they represent a key part of the waste management process. Its theoretical part covers legislation in waste management and sorts and systems of household waste collection. In the practical part there are commercially used vehicles chosen out and the fixed costs of their operation determined. Based on operation data, average velocities in an out of urban areas are calculated. As an outcome of a waste transport prices software, the influence of transport distance and waste mass are described, taking the average velocities into account.
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Recovery and recrystallization of austenitic steel 08Cr18Ni10T
Čech, Jan ; Gregor, Martin (referee) ; Foret, Rudolf (advisor)
This thesis deals with influences of graded deformations, temperatures and holding times on the grains and subgrains size in steel 08Cr18Ni10T. In literary part of the thesis there are described static and dynamic annealing treatments, then also austenitic stainless steels and some selected types of their processing. In experimental part there is studied grain size on differently deformed samples annealed in temperature range 1050–1200 °C for 10, 50 and 100 minutes. Analysis of present structures units was perform by EBSD. Except of that, there were realized chemical analysis of selected inclusions and also hardness test were realised. Achieved measurement shown, that grain size of chosen steel is depended on all 3 variable values.
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Manufacturing concept of a composite swing arm
Gregor, Lukáš ; Slaný, Martin (referee) ; Zouhar, Jan (advisor)
The subject of this master’s thesis is manufacturing design and production of CFRP swingarm prototype for off-road motorcycle. Theoretical part describes conventional types of swingarm, provides basic introduction to composites and manufacturing technologies. Practical part describes production steps, assembly jigs and assembly process. The last part of thesis deals with measuring stiffness properties using photogrammetry system TRITOP.
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