作者：Valeriy V.MARTYNENKO,Vladimir V.PRIMACHENKO,Pavlo O.KUSHCHENKO,Irina G.SHULIK,Ludmyla K.SAVINA
作者單位：The Ukrainian Research Institute of Refractories named after A.S.Berezhnoy
刊名：China’s Refractories
ISSN：1004-4493
出版年：2022-06-15
卷：31
期：2
起頁：1-6
止頁：
分類號：TQ175.732
語種：英文
關(guān)鍵詞：
內(nèi)容簡介The use of a combined additive consisting of silica-containing additives “F”(thinning) and “S”(accelerating castable hardening) instead of the previously used silica-containing additive “A” and a mixture of dispersing additives based on polyethylene glycol in low-cement silicon carbide castable allows to improve the castable workability by increasing(in 5.4times) the flowability of a freshly prepared castable, and increase by 1.2 and 1.1 times the cold crushing strength of heat-treated at temperatures of 110 and 1 580 °C, respectively, castable samples from low-cement silicon carbide castable with practically equal values of open porosity(15.8% and 16.0%). The petrographic studies of the castable sample microstructure after firing at a temperature of 1 580 °C showed that the investigated silica-containing additives “F” and “S” contribute to the denser and more uniform structure formation. As a result of the carried out research, the manufacturing technology of a low-cement silicon carbide castable was improved, of which the production was mastered at JSC “URIR named after A. S. Berezhnoy”.
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