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Design of manufacturing technology for plastic hung
Popelka, Jan ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
The aim of my graduation theses is to work up the literature search of polymer processing. To give a short summary of their structure, characteristic and fabrication technique. Then to make a structural design of injection mold for producing the scheduled aim and motivate this design with requisite calculation for construction of the tool, a choice of injection machine and rundown of injection cycle. At the end of my work is this aim economically reviewed and compared with alternative form of structural design.
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Production technology of plastic switch frame
Seidlman, František ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
This Diploma contains theme of injection of plastics. The theoretical section is focused on polymeric materials, their dividing and characteristics. From technologies for processing plastic is chosen injection of plastic, suitable for production technology of plastic switch frame. After that follows design of injection mould including calculation and designing drawing underlaid technical economic evaluation.
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Three-phase sinusoidal pulse width modulation algorithms
Rudolf, Ladislav ; Červinka, Dalibor (referee) ; Klíma, Bohumil (advisor)
The main theme of this bachelors‘s thesis is to introduce readers into the algorithm of generating three-phase sinusoidal pulse width modulation. Main attention is concentrating to methods of generating Pulse width modulation method such as comparate PWM modulation technique and space modulation of voltage vector SVM. The functional units of algorithms are analysed and described from the basics. In addition, this project describes the basic analog solutions and even the implementation of the PWM modulator into signal processors DSP56F800.
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Production technology for plastic socket outlet
Pokorný, Martin ; Orel, Daniel (referee) ; Kandus, Bohumil (advisor)
This project concentrates on the technology of manufacturing of the plastic socket outlet. It consists of two parts, where the first part is a literature study. Here are described the characteristics of the materials and their specifications. Further on is described basic knowledges technical methods of injection and some other technologies. The second section consists of the right proposal of the material. Further on in this section is described technological treatment. Mechanical function and its design and technical drawing are a part of this second section. As a final result is a brief comparison of the technology between the injection or pressing into molds. Herewith is also included a simplified financial budget calculation.
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Design of plastic cogvheel processing
Šváb, Petr ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
The publication contains manufacturing technology of injection cog-wheel, manufacturing plastic material specification and technical drawing documentation including injection shapes. Based on technical data of injecting machine the proper manufacturing technology is suggested. Basic evaluation of costs required to manufacture the whole series of injection cog-wheels is also included.
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The development of grouting for additional sealing of embankment dams
Michalčíková, Magdaléna ; Klablena,, Petr (referee) ; Drochytka, Rostislav (advisor)
Seal of sand or gravel by chemical injection is known and used for a long time. Chemical grouting are however expensive and sometimes the use of cement does not lead to desire effects. So it is trying to find new materials and methodologies injection arrangement works. To achieve savings of chemical products are added to a mixture clay and cement. Clay-cement grouting mix are used not only in order that they are better quality, but also because in this way proposed mixtures have a tendency to penetrate better into incoherent sediments that need additional sealant of chemical injection. For further possible reductions of economic terms the mixture is trying to replace the classic clay. As a suitable substitute for classic clay is to a certain extent the use of secondary raw materials. Above all it is fly ash. As a part of my thesis I deal with the appropriateness use of these materials and examining their properties in the mixture. It was found that by using fly ash were improving consistency of the fresh mixture, reducing the amount of water-cement ratio and reduce shrinkage of the mixture. On the other hand, by using fly ash has been increasing decantation, permeability atc. In the next stage of my work was examined the influence of the quality of cement, lime and liquefaction in the mixture. The aim of thesis is to propose the optimal injection mixture for additional sealing earth dams.
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Engine Motormanagement Software
Huška, Lukáš ; Kuchyňková, Hana (referee) ; Hájek, Vítězslav (advisor)
This master thesis deals with ignition systems which are used in cars vehicles with gas engines and also with setting of the best moment of ignition of gasoline-air mixture in cylinders of engine. Ways of gas injection at diesel engines and their control systems are also described in this thesis. Next chapter deals with control unit and describes main actions which are necessary for today’s motor vehicles. As illustration is used example of succession of actions which are necessary for calculation and setting regular value of pre-ignition. At the end is shown animation, which can be used for practice lessons in a subject Automobile Electric and Electronic Systems as a example. It will simplify understanding of described activities which are all accomplished by central control unit. For purposes of laboratory lessons is in this thesis also discussed measuring of engine performance with changes of parameter of central control unit.
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Production of the top of the pressure container
Sobotka, Jiří ; Císařová, Michaela (referee) ; Žák, Ladislav (advisor)
The project developed within the bachelor's degree, proposing a technological parameters of injection molding and tool design for plastic product– segment was suggested from the material PA 6 NOVAMID B30P nature. On the basis of literary study of technological plastic mould injection issues and experiences there was suggested mould injection tool with tunnel inflow, classical extractor was suggested for pressing demoulding. The mould uses standardized components and it corresponds by dimensions with production device ARBURG 420 C 1300-350 (manufacturer ARBURG Gmbh + Co KG, company Loßburg) or ENGEL VICTORY 500/120 Tech (manufacturer Schwertberg, company Schwetberg), with closing force 120 kN or 130 kN. The mould is produced from alloyed tool steel 19 436.9 (POLDI 2002).
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Design of injection mold via Autodesk Inventor
Křížka, David ; Šamánek, Otakar (referee) ; Paloušek, David (advisor)
This bachelor´s thesis deals with the design solution of injection mold for the roofing via software modul Autodesk Inventor - Tooling. In the reserche´s part of my bachelor thesis, the basic design and technological elements for the proposal of the injection mold are described. The separate construction design is divided into two parts. The first part deals with the description of each functions of the software modul Autodesk Inventor - Tooling. The second part of the construction design focuses on the proposal of 3D model plastic part and injection mold in Autodesk Inventor - Tooling. In conclusion, the assembly drawings of the injection mold is created.
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Electronic control units of present SI-engines
Michna, Lukáš ; Beran, Martin (referee) ; Dundálek, Radim (advisor)
Bachelor’s thesis named „Electronic control units of present SI-engines” treats of presently known and extended electronic control systems of SI-engines, so those ones, who mainly control both fuel-air mixture preparing and its ignition in combustion chamber. These are two fundamental functions for engine running, so they are described in light of basic principle of operation and also in light of each kind of these systems and its developmental stage description. Next point is enumeration and description of single parts of electronic control system participating in engine controlling, separated to logic sections. The end of publication makes reader acquainted with most extended types of electronic control systems, their producers and elementary differences.
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