| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention pertains to enamel compounds, which can be used for coating products made from silver, copper-nickel alloys and steel. The enamel contains SiO2, PbO, Sb2O3, ZnO, Na2O3, Al2O3, BaO, CaO, B2O3, K2O, TiO2, with the following percentage mass ratios: SiO2 - 30.0-35.0, PbO - 10.0-12.0, Sb2O3 - 1.5-2.0, ZnO - 4.0-5.0, Na2O - l.0-2.0, Al2O3 - 18.0-23.0, BaO - .0-1.5, CaO - 3.0-4.0, B2O3 - 10.0-12.0, K2O -1.0-2.0, TiO2 - 10.0-12.0. ^ EFFECT: increased acid-resistance of enamel. ^ 1 tbl |
