摘要:
A low melting point glass for covering electrodes, consisting, as represented by mass percentage based on the following oxides, essentially of: Mass percentage PbO 20 to 60%, Bi2O3 0 to 30%, B2O3 20 to 55%, SiO2 0 to 10%, Al2O3 0 to 15%, MgO + CaO 0 to 35%, SrO 0 to 35%, BaO 0 to 35%, ZnO 0 to 8%.