FIELD: manufacture of frit enamel. SUBSTANCE: enamel frit composition contains the following ingredients, % by weight: silicon oxide SiO2 52-62; sodium oxide Na2O 7- 16; boron oxide B2O3 2-8; alumina oxide Al2O3 2-8; lithium oxide Li2O 4-9 and perovskite CaTiO3 9-12. EFFECT: increased acid resistance. 2 tbl
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Authors
Dates
1994-02-28—Published
1991-07-02—Filed