| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to the technology of silicates, specifically to stone casting compositions, products of which can be used at high temperature. The stone casting contains SiO2, TiO2, Al2O3, Fe2O3, FeO, CaO, MgO, Na2O, K2O, F2, in the following ratio, wt %: SiO2 - 41.2-47.7; TiO2 - 1.2-1.4; Al2O3 - 10.0-14.0; Fe2O3 10.0-12.0; FeO - 0.4-1.0; CaO - 3.0-4.0; MgO - 18.0-20.0; Na2O - 1.2-1.4; K2O 6.0-7.0; F2 - 0.2-0.3. ^ EFFECT: increased thermal stability of the products. ^ 1 tbl |
