| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention concerns contents of stone casting. Products, made of this casting can be used in conditions of high temperatures and corrosive medium effect. Stone casting contains following components, wt %: SiO2 - 50.0-52.0; TiO2 - 0.6-1.0; Al2O3 - 4.0-5.0; Fe2O3 - 10.5-11.9; FeO - 0.4-1.0; CaO - 3.1-4.5; MgO - 9.0-11.0; Na2O - 2.0-2.5; K2O - 3.5-4.0; F2 - 4.2-4.3; ZrO2 - 2.8-3.5; B2O3 - 5.0-6.0. ^ EFFECT: increasing of thermostability and chemical stability of stone casting. ^ 2 tbl |
