| 摘要 |
FIELD: encapsulation of electric bulbs. ^ SUBSTANCE: proposed glass contains the following components, mass-%: SiO2, 64.0-66.0; Al2O3, 0.5-1.0; CaO, 5.06.8; MgO, 2.5-3.5; K2O, 4.0-6.0; Fe2O3, 1.0-2.0; FeO, 3.0-4.0; FeS, 0.2-0.4; ZrO2, 14.5-15.5; As2O3, 0.1-0.2. ^ EFFECT: enhanced heat resistance of glass. ^ 1 tbl |
