SU1351910A1 - Glaze - Google Patents

Abstract

The invention relates to the ceramic industry and can be used in the production of glazed facade tiles and floor tiles made from low-melting and refractory clays and having a dark shard. In order to increase abrasion, the glaze contains, in wt.%: SiOj 54.00-54.16; NajO 2.75-3.15 {AIjOj 6.43-6.61; CgO 1.13-1.15; 9.23-9.61; Zr02 0.21-0.38; Ca022,14-. 22.54; Zn 0.01-0.02; MgO 1.50-1.53; 1.48-1.53; BaO 0.10-0.21. Frosting semi-frit contains 3-5% frit. The glaze agrees well with the ceramic dyes, forming a variegated color glassy coating as well as a coating with a multicolor pattern. Abrasion glaze 0.01-0.012 g / cm. 2 tab. (L cond

Description

113519

The invention relates to ceramic industry and can be used in the production of glazed facade tiles and tiles for floors made of low-melting and refractory clays and having a dark shard.

The purpose of the invention is to reduce abrasion .10

The glaze of the proposed composition mainly contains (95-97%) raw materials

components that do not require pretreatment and 3-5% frit. The components are weighed according to the recipe and subjected to wet grinding in a ball mill until the residue on the sieve 006 0.05-0.10%. The density of the glazing suspension is 1.70-1.75 g / cm (by hydrometer), the humidity is 35 ± 1%.

A layer of glaze slurry is applied to a slightly moistened front surface of a tile with a temperature not exceeding 6 ° C and a method of 014 spraying or watering. The consumption of glaze 35-40 g per tile size mm. After drying the layer of glaze on its surface can be applied. Single or multi-color pattern by screen printing. Next, a single firing is performed in a roller oven at 1060–1130 ° C for 35–72 min. To increase the stability of the glaze slurry to settling and improve the adhesion of the glaze layer to the crock above 100%, 0.25% CMC (carboxymethylcellulose) is introduced into the glaze slurry and 0.05% electrolyte is thinned. After firing glazed components

Broken glass

Datolite concentrate

Clay DN (VS) Quartz sand Fritta 4a (33)

102

on the surface has a deaf white slightly creamy, elastic defect-free coating. The glaze is in good agreement with ceramic dyes, forming a vitreous color coating as well as a coating with a multi-color pattern.

The mixture and chemical composition of the glazes are given in table 1. . at

Properties of the proposed and known compositions are given in table 2.

The coating of the front surface of the tiles of the facade and for the floors with the proposed glaze ensures the constancy of the color of the tile regardless of the color of the crock, strengthens the tile and creates conditions for obtaining a multi-color pattern.

Claims (1)

Formula izob. reteni Glaze, including SiO, APjGj, CaO, MgO, KjO, NajO, V20z, 2pO, ZrOj, BaO, characterized in that, in order to reduce abrasion, it contains these components in the following amounts, wt.% 0 five Sioj Aljo Cao MgO Kjo NazO. Vaoz Zno ZrOz BaO Gezoz 54.00-54.16 6.43-6.61 22.14-22.54 .1.50-1.53 1.13-1.15 2.75-3.15 9.23-9.61 0.01-0.02 0.21-0.38 0.10-0.21 1.48-1.53. Table 1 The content of components, wt.% In the compositions one i: i: i 27 48 ten 12 3 27 45 ten sixteen 2 Temperature coefficient of linear expansion, (U-YuM / grad52.1 The temperature of the poured roasting, with Gloss,% Whiteness,% Heat Resistance, ° C Abrasion, g / cm 1060-1130 1060-1130 1060-1130 960-1060 36 7682-84  200 200 0,0120,12-0,2 Cost of food, rub / t51.03 52.21 52.07 50-53.2 36 7682-84  200 200 0,0120,12-0,26 42.80 37.00 198-263