ENAMEL Russian patent published in 1994 - IPC

FIELD: manufacture of bodies. SUBSTANCE: the enamel comprises the following components (wt % ): 20.2-27.4 silicon oxide; 1.0-3.2 aluminium oxide; 14.0-15.0 boron oxide; 2.5-6.9 phosphorus oxide; 6.0-9.0 sodium oxide; 1.5-4.0 titanium oxide; 2.5-5.0 ferric oxide; 2.3-4.1 chromium oxide; 6.8-12.0 zinc oxide; 0.1-1.0 molybdenum oxide; 10.3-14.2 α- wollastonite; and 9.0-11.0 potassium oxide. The enamel characteristics: the cooking temperature 1100-1200 C; the cooking time 40-45 min; the firing temperature 670-715 C; the color brown. EFFECT: improved properties of the enamel. 2 tbl