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Application of biogenous core binder for production of castings in automotive field
Vymyslický, Jakub ; Rusín, Karel (referee) ; Cupák, Petr (advisor)
This thesis deals with foundry binders and it is narrowly focused on biogenous binders used for production of castings in automotive field. There is a short overview of all groups of forming and core mixtures at the beginning of the thesis, which describes chemical composition of the mixtures and also development history of the mixtures. The thesis continues by focusing on biogenous binders, which are developed for the automotive field and with another biogenous binders which fits with the automotive field demands. Overview of technological and ecological properties was made for all of the listed biogenous binders. Advantages and disadvantages of the biogenous binders were also noted.
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Influence of ceramic filtrers on metal streaming in running systems
Vymyslický, Jakub ; Láník, Boris (referee) ; Roučka, Jaromír (advisor)
This thesis deals with influence of ceramic filters on metal streaming in running systems. The purpose of this thesis is to investigate the influence of porosity, thickness of ceramic filters and also viscocity of molten metal on mold filling. Hydraulic resistance of ceramic filters and possibility of its use in numeric simulation is also tested. At the beginning of the thesis there is theoretic analysis of filtration which inlcudes inclusions in cast irons, filtration matters, gatting systems design, hydraulic resistance and numeric simulation. The second experimental part of this thesis is focused on measuring shedding of molten grey cast iron and ductile iron through gatting systems with filters which are labelled VUKOPOR S. The experimental part then deals with evaluation of experiments results, calculation of hydraulic resistance and numeric simulation with the use of measured data.
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Influence of ceramic filtrers on metal streaming in running systems
Vymyslický, Jakub ; Láník, Boris (referee) ; Roučka, Jaromír (advisor)
This thesis deals with influence of ceramic filters on metal streaming in running systems. The purpose of this thesis is to investigate the influence of porosity, thickness of ceramic filters and also viscocity of molten metal on mold filling. Hydraulic resistance of ceramic filters and possibility of its use in numeric simulation is also tested. At the beginning of the thesis there is theoretic analysis of filtration which inlcudes inclusions in cast irons, filtration matters, gatting systems design, hydraulic resistance and numeric simulation. The second experimental part of this thesis is focused on measuring shedding of molten grey cast iron and ductile iron through gatting systems with filters which are labelled VUKOPOR S. The experimental part then deals with evaluation of experiments results, calculation of hydraulic resistance and numeric simulation with the use of measured data.
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Application of biogenous core binder for production of castings in automotive field
Vymyslický, Jakub ; Rusín, Karel (referee) ; Cupák, Petr (advisor)
This thesis deals with foundry binders and it is narrowly focused on biogenous binders used for production of castings in automotive field. There is a short overview of all groups of forming and core mixtures at the beginning of the thesis, which describes chemical composition of the mixtures and also development history of the mixtures. The thesis continues by focusing on biogenous binders, which are developed for the automotive field and with another biogenous binders which fits with the automotive field demands. Overview of technological and ecological properties was made for all of the listed biogenous binders. Advantages and disadvantages of the biogenous binders were also noted.
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