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Protection of prints by varnishing
Lokotschová, Radka ; Dzik, Petr (referee) ; Veselý, Michal (advisor)
This bachelor thesis deals with the issue of basic inkjet printing principles. It describes the continual stream and the drop on demand technique. It also deals with the issue of paper media, which are used during the inkjet printing – supporting bases and receiving layers. The thesis includes a description of print degradation, which is caused by UV-VIS radiation, pollutants, humidity or by elevated temperature. It also deals with the basic characteristics of varnishing and lamination.
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Production of Multilayer PCB
Janda, Ondřej ; Zatloukal, Miroslav (referee) ; Starý, Jiří (advisor)
This master thesis introduces the problematics of multilayer printed circuit boards. Theoretical part is focused on materials used for production of multilayer PCB and their parameters. At the same time, it focuses on the pressing process of multi-layered PCB, the types of presses used and their advantages and disadvantages. Practical part describes the methodology and testing of the PCB to identify the reliability of chosen electrical parameters. Testing is aimed to simulate thermal stress during machine soldering and during thermal stress in the target environment.
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Lamination of ceramic tapes
Smiešková, Jana ; Pouchlý, Václav (referee) ; Trunec, Martin (advisor)
This master’s thesis deals with ways of lamination of ceramic tapes prepared by gel–tape casting method. The thesis is divided into two parts. The first part, a literary recherche, describes methods of production of thin ceramic layers. The main focus is on the tape casting method. The second, experimental, part of the thesis describes the preparation of ceramic suspensions, the fabrication of thin ceramic layers by gel–tape casting method, the preparation of laminated bodies from thick-walled discs and laminated tapes and it also shows a possibility of creating of ceramic layers by the spin coating method used on polycrystalline ceramic substrate.
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Enhancement of print lightfastness by varnishing and lamination
Komárková, Hana ; Reháková, Milena (referee) ; Dzik, Petr (advisor)
This diploma thesis deals with recent methods of lightfastness evaluation of both classic and digitally printed photographs. It summarizes the experimental methods used for colour change measurements. Primarily, it studies an influence of additional protection on lightfastness enhancement. Lightfastness testing of colour prints was carried out by accelerated ageing. Samples were prepared by 3 types of inkjet printers and 3 different print media. The surface of photographs was left untreated or modified by varnishing or lamination. A set of samples, thus achieved, was used to monitor a print behaviour during the light exposure. In conclusion effects of used receiving layer, ink or additional surface treatment were discussed. Colour changes were evaluated on the basis of measured reflectance spectra from which colorimetric quantities were calculated. Results were processed using VolGa application. An actual print-life was calculated from the plot of the normalized gamut volume loss and the exposure.
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Optimization of Cavity Fabrication in Low Temperature Co-fired Ceramics
Dóczy, Robert ; Somer, Jakub (referee) ; Štekovič, Michal (advisor)
This work deals with the fabrication of closed cavities in Low Temperature Co-Fired Ceramics (LTCC). In recent years, the LTCC ceramics have become widely used in the areas of sensors, MEMS and micro-fluidic applications. When fabricating such devices, it is important that the cavities maintain their compactness and dimensions after the manufacturing process . This is achieved primarily with the right choice of lamination process and its parameters and also by appropriate setting of the firing profile. The theoretical part describes the various steps in the production of LTCC structures and the most common technological processes used for creating structures with cavities and micro - channels . In the practical part are selected laminating procedures performed on the test pattern, which contains cavities of different sizes. Emphasis was placed on the correct execution of each method , while gradually modifying the lamination parameters. The achieved results are further discussed in terms of process parameters and their influence on the dimensions of manufactured cavities.
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Design of track-day car
Rzyman, Michal ; Jelenčík, Branislav (referee) ; John, David (advisor)
This diploma thesis deals with the design of the bodywork of a weekend sports car, based on the current Sigma TN vehicle, in order for better appearance and extended usability. The goal is accomplished by a new dynamic exterior design. Where the usability issue is solved by a modular roof system and luggage compartment. This work provides a new perspective on the concept and design of cars designed primarily for leisure driving.
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The lamination of Low Temperature Co-fired Ceramic
Hudeček, Ondřej ; Klíma, Martin (referee) ; Kosina, Petr (advisor)
Master’s thesis deals with the optimalization of low-temperature cofired ceramic lamination process that affects the final quality of 3D structures (eg., channels, cavities, membranes, etc.). The paper evaluates the influence of lamination parameters (pressure, temperature, time) on the formation of defects in the structure, which were detected by appropriate methods. The last parts describes designed and simulation cooling water system using LTCC technology.
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Numerical simulation of mold filling and casting solidification
Kolda, Vlastimil ; Herman,, Aleš (referee) ; Krutiš, Vladimír (advisor)
The object of this diploma thesis is to analyze, persuant to numerical simulation of current technology of production aluminous casting roller-reck V9X, causes of the rise of cold lap and laminations defects. Consequently, to work up a project of variant solution of the shape of casting so, as to come to elimination mentioned defects. This variant solving will be tested with numerical simulation as well. Fruitfulness of these designed changes will be verified by testing molten of the casting. In terms of solve the problem the simulation of cycling of the mold and subsequently the filling of the casting will be effected. During the analyse of filling of the die the first phase of filling will be effected too.It means the movement of the piston throught the chambre. Simulation of solidification of the casting wont be effected because of the type of the defect.
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Design of track-day car
Rzyman, Michal ; Jelenčík, Branislav (referee) ; John, David (advisor)
This diploma thesis deals with the design of the bodywork of a weekend sports car, based on the current Sigma TN vehicle, in order for better appearance and extended usability. The goal is accomplished by a new dynamic exterior design. Where the usability issue is solved by a modular roof system and luggage compartment. This work provides a new perspective on the concept and design of cars designed primarily for leisure driving.
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Lamination of ceramic tapes
Smiešková, Jana ; Pouchlý, Václav (referee) ; Trunec, Martin (advisor)
This master’s thesis deals with ways of lamination of ceramic tapes prepared by gel–tape casting method. The thesis is divided into two parts. The first part, a literary recherche, describes methods of production of thin ceramic layers. The main focus is on the tape casting method. The second, experimental, part of the thesis describes the preparation of ceramic suspensions, the fabrication of thin ceramic layers by gel–tape casting method, the preparation of laminated bodies from thick-walled discs and laminated tapes and it also shows a possibility of creating of ceramic layers by the spin coating method used on polycrystalline ceramic substrate.
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