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Buckling Analysis of Thermoplastic Pipes
Procházka, Martin ; Kytýr, Jiří (referee) ; Gratza, Roman (advisor)
This thesis deals with buckling analysis of thermoplastic pipes. An experiment was conducted in which the pipes were encumbered in axis. During this experiment, the loading force was monitored and measured at the material stability loss. For these measurements, polyethylene, polypropylene and polyvinylchloride pipes were used. Afterwards, the static and buckling analysis of pipe models were made in the ANSYS programme. The models were created on the basis of the experiment results. The outcomes of the analysis were compared with figures of the theoretical calculations. In the ANSYS programme pipes were strained by external overpressure.
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Production technology of a plastic headlight panel in a car
Vrána, Petr ; Žák, Ladislav (referee) ; Kandus, Bohumil (advisor)
Diploma thesis which is developed for the master’s degree program (M2I – K Mechanical engineering) presents a proposal solution for production technology plastic car headlins parts from polymer material PBT GF30. Literature review summarizes the findings of thermoplastic injection technology and the structural design possibility of injection molds. The paper examined two variants of the running system, which are suitable for production of injection molding components. Finaly, after technical - economic assessment, we came to the conclusion that the better option is to use the hot runner system. In the practical part is the specified product modeled by the help of 3D software and the injection mold was designed. The design was implemented by CATIA V5 R20. For the design and manufacture of injection mold were used normality from MEUSBURGER. For the chosen alternative technology of production were made calculations and was selected injection molding machine Electron 75 – 300 from FERROMATIC.
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Production technology of plastic bracket bearings motor
Svoboda, Vladimír ; Odehnal, Petr (referee) ; Kandus, Bohumil (advisor)
The target of this dissertation is based on the specified shape of plastic part to develop search technology of plastic injection molds, to the technological design process and construction of injection molds, including the necessary calculations. The project includes a search and a practical sections. Based on information from a search section a suitable material was chosen, which became the basis for practical section. The practical section with basic technology calculation is complemented by filling simulation analysis and stress analysis of critical elements. A part of this dissertation is the set of the drawings.
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Design of manufacturing technology for plastic terminal device
Adamiec, Pavel ; Žák, Ladislav (referee) ; Kandus, Bohumil (advisor)
The master thesis deals with design to produce terminal using the plastic injection molding. In the first part are theoretical information about injection molding and injection molding with inserts. The second part is a concrete design of production terminal which contains: injection mold design, calculation of the injection parameters, machine selection, technical and economic evaluation of production. Terminal is made of polyamide 66, inserts material is brass. Parts of injection mold assembly are selected from Hasco standards. The main parts of assembly are made of 1.2312 steel. Production cycle is placed on injection machine Allrounder 375 V from Arburg.
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Design of manufacturing technology for motorcycle headlamp body
Nosek, Jan ; Urbanec, Antonín (referee) ; Kandus, Bohumil (advisor)
The thesis is a proposal technology of the main body of motorcycle polymer material from Bayer's APEC - high temperature polycarbonate 1703. Literary study summarizes findings from a thermoplastic injection molding technology and the possibilities of structural design of injection molds, plastic plating technology from a focus on the most important technology in the field of lighting technology vehicles. Given the anticipated production run of 50 thousand. pieces are assessed a total of 2 variants of the molding parts. The practical part was modeled and specified product designed mold. Construction was done by using SolidWorks 2007 software and normalities FCPK Bytów and HASCO. For the selected option is implemented technological calculations. For the proposed technology was chosen Allrounder injection molding machine 570 A the manufacturer Arburg designed and suitable technological process of production.
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Production technology of plastic unit base
Vyškovský, Stanislav ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
Thermoplastic injection technology is widely used in all sectors of consumer electronics and automotive industry. The biggest advantage of this manufacturing technology is a high degree of automatization and good reproducibility of the manufacturing process. Another advantage is the possibility of recycling of the gating scrap and defective products. The main task of this work is to calculate the necessary parameters for the injection process, which takes place at the designed injection form. Next part is technical design which includes choice of standard parts of injection mold and idividual semi-finished parts for mold. Thesis continues with selecting the type of injection press based on calculated parameters of the injection process. Thesis is finished by technical-economic evaluation.
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Optimization of wall thickness for headlamp body
Prokeš, Radim ; Tomaj, Martin (referee) ; Kandus, Bohumil (advisor)
This project is concerned with the issue of the thickness optimalization of the wall thickness of the plascics headlamp housing by the simulation Moldflow analyse. There are mentioned the basic information about the plastic materials and their dividing over there. Furthermore the description of the injection process, the injection machines and the tools is included. The principles of the proposal and the construction of the plastics part is also mentioned here. In the application of the Moldflow Plastics Insight 6.0 there is provided the simulation of the melt moldflow for the proposed headlamp housing. Based on this analyse the proposal of the thickness reduction of the wall thickness of the headlamp housing is worked out with the aspect on the required qualities. It also contains the technoeconomic estimation of the benefit optimalization.
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Diaphragm Thermoplastic Press
Štindl, Martin ; Blecha, Petr (referee) ; Foller, Bronislav (advisor)
The basic of this work is the construction realization of membrane vacuum press, mark out for shaping thermoplastics by force of membrane. Specially designate for material Twintex. The work deals with the general conception and form this machines. Movement material in machine to the warm up parts and after it to moulding.
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Production technology of mobile phone plastic cover
Heralt, Aleš ; Orel, Daniel (referee) ; Kandus, Bohumil (advisor)
The master´s thesis is focused on technology of injection plastics. The specified part is guard cover of mobile phone. The first part of thesis is focused on description of technology with priority on construction of form. The second part of thesis includes calculations of parameters, which are needed for production, along with techno-economic evaluation of selected construction design.
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