the basic version of the free radical (Alkali - free glass Substrate)

摘要

according to the invention, the quality of the alkali metal oxide content, but the high point of the drug, but with a strong and at the same time, the forming of it, and the density of the 2.6g / Cm3 following the alkali free radical in this stage, the alkali free radical. is the essence of the alkali metal oxide content, the percentage of weight SiO 250.0. 57.9%, Al2O 310. 25.0%, B2O 33.0. 12.0% and 0. 2% MgO, CaO 10.0 0 ~ 0.1%, BaO. 5.0%, SrO 0.1 ~ 0. 5.0 ZnO 15.0%% ZrO 5.0, 20%, 20% of the TiO 5.0 have been established.