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HEAT-INSULATING REFRACTORY MATERIAL ON BASE OF HOLLOW CORUNDUM MICRO SPHERES
https://doi.org/10.17073/1683-4518-2014-12-29-31
Abstract
The influence of dispersion agents on the properties of both corundum hollow micro sphere mixtures and burnt materials was studied in the article. It was shown that the CASTAMENT FS10 and CASTAMENT FW10 additions allowed the obtaining the green ware with the ultimate compressing strength as much as 2 Megapascals. At the same time the fired material's porosity comparing to that of the material without dispersing additions doesn't decrease significantly. On base of hollow corundum micro spheres with poly-fraction composition after the burning at 1600 °C the heat-insulating ceramic materials were obtained having the open porosity at most 50,7 % and the ultimate compressing strength at most 35 Megapascals. The materials shrinkage at burning was no more than 0,2 %, providing the manufacturing the large-sized irregular shaped products out of this material and the handing them over to the customers. Ill. 2. Ref. 5. Tab. 3.
Keywords
About the Authors
B. L. KrasniiRussian Federation
V. P. Tarasovskii
Russian Federation
A. B. Krasnii
Russian Federation
A. L. Galganova
Russian Federation
A. V. Reznichenko
Russian Federation
References
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2. Гаоду, А. Н. Высокопрочные пористые огнеупоры на основе корундовых сферических гранул / А. Н. Гаоду, Н. С. Пащенко, И. Г. Субочев // Огнеупоры. — 1978. — № 11. — С. 39-41.
3. Писарев, Н. В. Виброуплотнение корундовых теплоизоляционных изделий / Н. В. Писарев, Т. М. Сан-дуца, А. Н. Гаоду // Огнеупоры. — 1986. — № 4. — С. 28-32.
4. Дегтярева, Э. В. Структурно-механические свойства корундовых масс с пористым заполнителем / Э. В. Дегтярева, Т. М. Сандуца // Огнеупоры. — 1987. — № 8. — С. 10-13.
5. ENV 1402-4:2002 [Unshaped refractory products — P. 4. Determination of consistency of castables: prEN 14024:2004.— Brussels : CEN, 2002.— 9 p.].
Supplementary files
For citation: Krasnii B.L., Tarasovskii V.P., Krasnii A.B., Galganova A.L., Reznichenko A.V. HEAT-INSULATING REFRACTORY MATERIAL ON BASE OF HOLLOW CORUNDUM MICRO SPHERES. NOVYE OGNEUPORY (NEW REFRACTORIES). 2014;(12):29-31. https://doi.org/10.17073/1683-4518-2014-12-29-31
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