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Faculty of Metallurgy and Technology Travnička cesta 1, Zenica, University of Zenica , Zenica , Bosnia and Herzegovina
Faculty of Metallurgy and Technology Travnička cesta 1, Zenica, University of Zenica , Zenica , Bosnia and Herzegovina
In the technology of bentonite mixture mold unexplored fields are the properties of a mixture of a quartz sand fraction 0.106 mm, 0.3 mm and 0.425 mm and the possibility of stacking in horizontal layers in the mold. The investigation is related to the layers of the following combination of sand fractions: 0.3 / 0.106 / 0.425 mm, 0.106 / 0.425 / 0.3 mm and 0.106 / 0.3 / 0.425 mm. Examples of good praxis in castings, smooth surface castings are bound to the use of a model mixture in the front layer casting mold. The results of the research show a high smoothness of the surface of the oil pump cover made in the mold of bentonite mixture from one fraction 0.3 mm of quartz sand.
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