ENAMEL Russian patent published in 2008 - IPC C03C8/08 

FIELD: ferrous metallurgy industry; other industries; production of the enamels for deposition on the articles made out of the steel.

SUBSTANCE: the invention is pertaining to the composition of the enamels used for their deposition on the articles made out of the steel. The technical result of the invention is the increased strength of the enamel against the action of the impact. The enamel composition contains (in mass %): SiO₂ - 36.0-40.0; Р₂О₅ - 1.0-3.0; TiO₂ - 4.0-6.0; В₂О₃ - 40-6.0; MgO - 15.0-18.0; MnO - 6.0-10.0; К₂О - 0.8-1.8; CuO - 4.0-7.0; As₂O₃ - 0.1-0.2; SrO - 17.0-20.0.

EFFECT: the invention ensures the increased strength of the enamel against the action of the impact.

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