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Thermoproperties of foundry moulds in dependence on different used foundry sands
Šuráň, Jiří ; Rusín, Karel (referee) ; Cupák, Petr (advisor)
The project elaborated in frame of engineering studies is submitting the study of thermal properties of holding mixtures using different types of sand. Were tested a total of 5 sands: zirkon, ŠH22, chromite, olivine and dunite. Molding compounds were tested for thermal capacity, thermal conductivity and heat accumulation. The highest heat capacity was achieved in dunite sand. The largest heat accumulation had mixture with chromite sand and the best thermal conductivity was found in a mixture with olivine sand.
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Production, structure, mechanical properties and usage of martensitic stainless steels
Zíka, Marek ; Myška, Martin (referee) ; Blažík, Petr (advisor)
This bachelor thesis deals with issues of production, mechanical properties and structure of martensitic stainless steels. Further a thesis is focused on heat treatment, which significantly improves mechanical properties of steels, and usage of this materials. In experimental part is solved influence of chromite sand on surface structure cast. On the images of structure of casting samples can be seen, that the chromite doesn’t have influence on surface structure.
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Production, structure, mechanical properties and usage of martensitic stainless steels
Zíka, Marek ; Myška, Martin (referee) ; Blažík, Petr (advisor)
This bachelor thesis deals with issues of production, mechanical properties and structure of martensitic stainless steels. Further a thesis is focused on heat treatment, which significantly improves mechanical properties of steels, and usage of this materials. In experimental part is solved influence of chromite sand on surface structure cast. On the images of structure of casting samples can be seen, that the chromite doesn’t have influence on surface structure.
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Thermoproperties of foundry moulds in dependence on different used foundry sands
Šuráň, Jiří ; Rusín, Karel (referee) ; Cupák, Petr (advisor)
The project elaborated in frame of engineering studies is submitting the study of thermal properties of holding mixtures using different types of sand. Were tested a total of 5 sands: zirkon, ŠH22, chromite, olivine and dunite. Molding compounds were tested for thermal capacity, thermal conductivity and heat accumulation. The highest heat capacity was achieved in dunite sand. The largest heat accumulation had mixture with chromite sand and the best thermal conductivity was found in a mixture with olivine sand.
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