Glass for covering electrode

摘要

Provided is a nonlead glass for covering an electrode, which comprises, in mol%, B₂O₃ 15-65%, SiO₂ 2-38%, MgO 2-30%, MgO+CaO+SrO+BaO 5-45%, Li₂O 1-15%, Li₂O+Na₂O+K₂O 2-25% and others, and which comprises ZnO 0-15%. Provided is a nonlead glass for covering an electrode, which comprises, in mol %, B₂O₃ 25-65%, SiO₂ 2-38%, MgO 2-30%, MgO+CaO+SrO+BaO 5-45%, Li₂O+Na₂O+K₂O 2-25%, Al₂O₃ 0-30, TiO 0-10% and ZnO 0-15%.