SU1209624A1 - Glaze - Google Patents

Description

.

The invention relates to the technology of silicates and can be used in the building materials industry as a white and colored glaze for coating ceramic tiles with a dark and light cutting.

The purpose of the invention is to reduce the firing temperature, increase gloss and obtain a white coating.

The compositions of the glaze are given in table. one .

Table

Mgd

0.165

0.17

15

As a feedstock at

Perlite, zirconium concentrate, boric acid, borax, zinc oxide and carbonic acid barium are used in the manufacture of the charge. The charge components are mixed and fritted at 1350 C. The frit is granulated in water. The glaze is prepared by wet grinding with the addition of 3-4% clay. The glaze slurry is applied to the ceramic base by sprinkling or spraying and fired at 820-920 s.

After firing, the glaze has an even spill, a uniform glossy surface without knock-on tsek and other visible defects.

The properties of the compositions of the glaze are given in 0.185 in the table. 2,

25

thirty

Heat resistance, those areas

ten

Heat Resistant- Of2 Yap

Continuation of table 1

Table 2

eleven

eleven

.280

280

 Iznostoyko-bone, g / cm

Glaze can be used in the manufacture of products for interior lining in high-speed modes 1209624

Continuation of table 2

0.05

0.05

15

max roasting on modern flow-conveyor lines.

Claims (1)

GLAZE comprising SiO ^, Al ^ Oj, Fe ₂ Oj, Na ₂ 0, KjO, CaO, MgO, | TiO _z, BaO, ZrO _t H B2O3, characterized in that in order to decrease zheniya firing temperature, improve gloss and obtain a white coating, it additionally contains ZnO in the following ratio, May. %: SiOj 45.35-50.40 A1 _g 0 ₃ 7.87-9.04 Fe ₂ 0 ₃ 0.32-0.40 Na ₂ 0 3.41-3.68 K ₂ 0 2.12-2.50 CaO 0.42-0.55 MgO 0.165-0.185 TiO ₂ 0.015-0.025 Bao 4.95-5.59 ZrO ₂ 6.03-8.77 V _g 0 ₃ 16.59-19.18 Zno 5.92-6.52 SU n „1209624>