| 摘要 |
A glass composition for glass components of lamps includes: SiO<SUB>2 </SUB>55-80 wt %; Al<SUB>2</SUB>O<SUB>3 </SUB>0.5-5 wt %; B<SUB>2</SUB>O<SUB>3 </SUB>0-5 wt %; Na<SUB>2</SUB>O 2-15 wt %; Li<SUB>2</SUB>O 0-5 wt %; K<SUB>2</SUB>0 1-15 wt %; MgO 0.1-10 wt %; CaO 0.1-10 wt %; SrO 0-4 wt %; BaO 0-4 wt %; ZnO 0-5 wt %; Sb<SUB>2</SUB>O<SUB>3 </SUB>0-1 wt %; and CeO<SUB>2 </SUB>0-1 wt %. The total content of Na<SUB>2</SUB>O, Li<SUB>2</SUB>O, and K<SUB>2</SUB>O falls within a range of 3-25 wt %. The total content of MgO, CaO, SrO, BaO, and ZnO falls within a range of 1-20 wt %. The total content of SrO and BaO is less than 4 wt %. The ratio of Li<SUB>2</SUB>O to Na<SUB>2</SUB>O by weight falls within a range of 0.05:1 to 0.7:1. The ratio of K<SUB>2</SUB>O to Na<SUB>2</SUB>O by weight falls within a range of 0.4:1 to 1.3:1.
|
