EASILY FUSIBLE GLASS COMPOSITION PRODUCTION METHOD Russian patent published in 2017 - IPC C03C8/24 C03C8/14 

FIELD: metallurgy.

SUBSTANCE: easily fusible glass composition is obtained by mixing easily fusible glass, containing PbO, As₂O₃, ZnO_, Al₂O_3, SiO₂, crystalline lead titanate PbTiO₃ and zircon ZrSiO₄. The specific surface area of zircon is 1200-1400 cm²/g, the easily fusible glass - 2500-2700 cm²/g. Lead titanate is introduced into bidispersed condition - in the form of powder with a value of specific surface area 1100-1300 cm²/g and up to 6 wt % above 100% as a fraction with a particles size less than 3 microns. The composition content is the following, mass %: lead titanate - 20-50; zircon - 0.1-5; easily fusible glass - the rest up to 100, lead titanate with a particle size of not more than 3 microns - up to wt % 6 above 100.

EFFECT: mechanical strength of obtained soldered products increase and improving the glass compositions obtaining technology.

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