| 摘要 |
FIELD: construction. ^ SUBSTANCE: composition versions are proposed. Glass may contain, wt %: SiO2 7.3-7.5; CaO 4.5-4.8; Na2O 14.7-14.8; CdO 1.25-1.5; Se 0.4-0.5; S' 0.1-0.15; B2O3 71.0-71.5. Glass may contain, wt %: SiO2 7.3-7.5; CaO 4.6-4.8; Na2O 14.6-14.8; CdO 1.3-1.5; B2O3 70.8-71.0; Ag and/or Au 0.6-1.0. Glass may contain, wt %: SiO2 7.3-7.5; CaO 4.6-4.8; Na2O 14.6-14.8; CdO 1.4-1.5; B2O3 70.7-71.0; MnO2 0.8-1.0. Boiling temperature makes 900-1200C. ^ EFFECT: reduced temperature of glass boiling. ^ 3 tbl |
