Studying the compositions and modes of manufacturing refractory products using steel production slag
Arinova S.K. Kulikov V.Y. Kvon S.S. Altynova A.E.
2025SciCell s.r.o.
Acta Metallurgica Slovaca
2025#31Issue 274 - 77 pp.
The article presents the results of studying the possibility of using steelmaking waste as an anthropogenic raw material for manufacturing refractory materials. Steelmaking slag, which is characterized by an increased content of calcium silicates, was used as an additive that increased the heat resistance of refractory materials. The studies show that it is most appropriate to use as the main filler a fraction of fireclay scrap 0.8-0.9 mm (60%); fine-grained fireclay (0.2-0.3 mm, 10%); clay suspension with a moisture content of 7-8% (30%), which ensures the production of high-quality refractory material. In this case, it is advisable to press the samples with the pressure of 22-23 MPa to sinter at 1250 - 1270 ºС within 10-12 hours. The microstructure of the samples was studied, and it was shown that the experimental fireclay sample had a more uniform structure and a smaller number of rounded pores. Thus, based on anthropogenic raw materials, it is possible to obtain refractory fireclay products that can be recommended as alternative materials for lining various types of thermal units of foundry and plants of metallurgical production with a maximum application temperature of 1250-1300 ºС.
anthropogenic raw materials , compressive strength , metallurgical slag , refractory materials
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Karaganda Technical University named after Abilkas Saginov, Department of Nanotechnology and Metallurgy, Nursultan Nazarbayev Avenue No. 56, Karaganda, 100003, Kazakhstan
Karaganda Technical University named after Abilkas Saginov
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