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Production technology of plastic body aperture
Dluhoš, Jan ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
This thesis deals with the production of a plastic body of the aperture by the method of injection moulding. The work includes a design of the injection mould for the given component. First, an appropriate material for the moulded piece was chosen and then the necessary calculations for the injection mould were made. A quadruplex injection mould with a heated inlet nozzle and pullout cores was designed based on these calculations. Modular components were chosen when designing the injection mould. The next part of the thesis contains the selection of the injection moulding machine for the given mould. The conclusion contains a technical-economical evaluation including the cost estimating for the injection mould and cost estimating for one moulded piece.
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Technology design manufacturing plastic worm gear
Petrucha, Roman ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
The master thesis deals with the design of the injection mold for the production of a plastic two-part worm which is part of the worm gear set in the sleeve. From the beginning, an analysis of the assigned component was performed, specifying its function and specifying the criteria that must be met by the component. In addition, design of the production technology (injection molding) was carried out, followed by theoretical analysis of plastic materials, injection molding technology and mold design. Subsequently, in the practical part, a complete design of the injection mold was made on the basis of simulations and technological calculations. On the basis of the parameters of the injection mold, a machine was chosen, on which production should be carried out according to the proposed technological procedure. The conclusion of the thesis contains a technical and economic evaluation of the proposed technology for the production of Plastics splatter component.
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Static Analysis of Parts of Thermoplastic Pipe Systems
Plášek, Jan ; Kuklík,, Pavel (referee) ; prof. Ing. Alois Materna, CSc., MBA (referee) ; Kytýr, Jiří (advisor)
Thermoplastic materials have significant nonlinear behaviour. The nonlinear behaviour is described by creep curves. The curves of creep modules are dependent on stress, temperature and time. The dissertation thesis deals with the approximation of the creep modules by Prony series. Subsequently three procedures are proposed to take account of creep modules. The proposed procedures are used in two applications. The first application deals with the ring stiffness value of a corrugated sewage pipe. The ring stiffness value is influenced by the creep modulus. The other one deals with a thermoplastic flange connection. The clamping force is dependent on the creep modulus of thermoplastics. The problems were solved by ANSYS program system.
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Dielectric Properties of Thermoplastic Materials with Ground Mica
Fiala, Ivo ; Havlíček, Svatopluk (referee) ; Polsterová, Helena (advisor)
The subject of this thesis are composite materials, measuring of their dielectric qualities, particularly of the polyamide and the polyamide filled with various weight percentage of the ground mica. The essential intent of the thesis is to determine the measuring methodology and respective measurement of the basic dielectrical quantities of materials, as are loss factor and the complex permitivity components. The measuring should be done for various temperature and humidity combinations. The thesic contains the physical explanation of measured dependences.
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The issue of heat treated waste and optimization of properties for their use in construction
Čermák, Jan ; Mareček,, Jan (referee) ; Žižková, Nikol (referee) ; Kohoutková,, Alena (referee) ; Šťastník, Stanislav (advisor)
Given the increasing consumption of plastic materials their reuse becomes a very topical issue. Recycling the single-cleaned plastic waste is simple, these products can be used as raw material or additive in the manufacture of new products. The problem remains the energy, economic and environmental demands in sorting, cleaning and eventual regranulation of waste to a suitable feedstock. This problem can be solved using technology that is able to handle multiple-type waste thermoplastics in further useful products.
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Plastics Processing Technology
Kubíček, František ; Kandus, Bohumil (referee) ; Žák, Ladislav (advisor)
This work is a literary research focused on plastics processing technologies with emphasis on injection moulding technology. From this field it is focused on materials suitable for injection moulding, moulding machines and parts of it, injection moulding process, defects emerging because of wrong optimalization of injection moulding process and special techniques of injec-tion moulding.
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Perspective materials for packaging
Gančev, Jan ; Psota, Boleslav (referee) ; Szendiuch, Ivan (advisor)
The first part of work deals with the theory of packaging of semiconductor chips and hybrid integrated circuits and defining material properties essential to the packaging. In the second, experimental part are defined the basic principles of heat transfer and heat dissipation of created package using thermocouple, thermal camera and static-thermal simulation. In the last part there is created design recommendations for package based on the comparison of the results.
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Static Solution of Water Pipes in Trenchless Technology
Mráčková, Martina ; Kytýr, Jiří (referee) ; Gratza, Roman (advisor)
The paper provides an overview of the most widely used trenchless technologies and the possibility of their utilization for laying new thermoplastic pipelines. It analyzes the static behavior of thermoplastic water pipes placed into the existing steel pipes using relining technology. The program system ANSYS is used as a tool for static solution of pipelines. Obtained results are compared with conventional approaches.
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Design of manufacturing technology for headlamp body
Pytlík, Radek ; Tomaj, Martin (referee) ; Kandus, Bohumil (advisor)
The project developed within the Master's degree is proposing a technology of manufacturing a headlight housing from the high temperature polycarbonate Apec 1695 with wall thickness of 1.8 mm. The batch size is set at 100,000 units / year. Based on literature studies of injection moulding and also on the calculation method, the injection moulding tool with the heated injector has been proposed. The injection moulding machine Allrounder 630 S 2500-800 from Arburg is used for the production of the plastic headlight housing.
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Application of Modern Technologies to Production of Prototype Form
Pospíšil, Josef ; Zemčík, Oskar (referee) ; Sedlák, Josef (advisor)
This Diploma Thesis deals with modern technologies such as 3D scanning, rapid prototyping and vacuum casting to production of prototype form. It considers advantages and disadvantages of the modern technologies compared to traditional process of manufacturing prototype form and economical contribution using the modern technologies. Part of the thesis considers a choice of suitable manufacturing technology of a particular product.
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