Exothermic-insulating materials are used as secondary materials in metallurgical industry. They consist of an exothermic and an insulating component. The first component reacts exothermic, second component acts as an insulator. With the use of exothermic-insulating materials in foundries and steel plants, we achive a longer solidification time, due to reduced heat dissipation and an exothermic effect. The discussed material is being used in form of covers, so we want it to be as light as possible.
Within this bachelor’s thesis we took a look into already existing exothermic insulation material and its components. The main goal was to create a new sample with comparable properties to the original material, Exipp, yet lighter. The thesis consist of two parts. Firstly we took a look into existing literature regarding the exothermic-insulating materials and analysis methods, which were later used in our research. In our practical part we tested the existing material and its componetns reactivity with Al2O3. The DSC analyses were preformed after. According to the literature and analyses, we determined compositions of new lighter exothermic-insulating mixtures with a lighter mass. Samples were then made at Exoterm-IT d.o.o. The new samples were than analysed with DSC. We performed an industrial analysis with the Exoprobe method on both original material and the new samples. We compared the results of the analyses. At the end we chose the most suitable material which could replace the existing material, and which is 330 g lighter (31,8 %).
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