Šimon Kielar
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View article: Numerical Simulation and Optimization of Furnace Roll Casting Production Technology
Numerical Simulation and Optimization of Furnace Roll Casting Production Technology Open
This study investigates the use of steel and cast iron for producing cast furnace rolls to replace welded rolls, which often fail from cracks and limited durability. Casting had not been previously considered by the manufacturer, but risin…
View article: Design and optimization of a castability test for copper alloys applied to plaster moulds
Design and optimization of a castability test for copper alloys applied to plaster moulds Open
The paper deals with the design and execution of the test of the castability into preheated plaster moulds. Castability is an important parameter for the evaluation of foundry alloys. When the metal does not run, it usually causes an irrep…
View article: Evaluation of Mixing Efficiency and How it Affects the Properties of the New Green Sand Mixtures
Evaluation of Mixing Efficiency and How it Affects the Properties of the New Green Sand Mixtures Open
The current trend in the preparation of green sand mixtures emphasizes the acceleration of the mixing process while maintaining the quality of the mixture. This requirement results in the necessity of determining the optimal conditions for…
View article: Effect of the Composition of Hybrid Sands on the Change in Thermal Expansion
Effect of the Composition of Hybrid Sands on the Change in Thermal Expansion Open
In the foundry industry, silica sands are the most commonly used type of sands for the production of sand foundry moulds using various types of binders. Their greatest disadvantage is their significant volume changes at elevated temperatur…
View article: Mulling and its Effect on the Properties of Sand-Water-Bentonite Moulding Mixture
Mulling and its Effect on the Properties of Sand-Water-Bentonite Moulding Mixture Open
Today, foundries are facing increasing demands for greener and more economical production while maintaining or improving the quality of the castings produced.The importance and use of green sand mixtures using bentonite as a binder are thu…