RU2301218C1 - Tiling glaze - Google Patents

Abstract

FIELD: manufacture of building materials.

SUBSTANCE: tiling glaze for deposition on ceramic tiles is composed of, wt parts: clay 40-50, quartz sand 5-10, chalk 2-3, litharge 20-30, pyrolusite 6-10, blast furnace slag 30-60, and, additionally, calcium borate 3-5.

EFFECT: reduced cost price of glaze composition.

2 cl, 1 tbl

Description

The invention relates to the building materials industry and relates to glaze compositions for application to ceramic tiles.

Known glaze containing clay, metallurgical (copper) slag, frit, corundum [1].

Known matte black tiled glaze containing, parts by weight: clay 45; silica sand 6.7; chalk 2.5; lead litharge 40; iron oxide 9.7; pyrolusite 7.5 [2].

The objective of the invention is to reduce the cost of the composition of the glaze.

The technical result of the solution of this problem is achieved by the fact that tiled glaze, including clay, quartz sand, chalk, lead litharge, iron oxide, pyrolusite, additionally contains blast furnace slag in the following ratio of components, parts by weight: clay 40-50; silica sand 5-10; chalk 2-3; lead litharge 20-30; pyrolusite 6-10; blast furnace slag 30-60. Tiled glaze additionally contains 3-5 parts by weight. calcium borate.

Glaze is prepared as follows.

The components are prepared and dosed, for example, according to any selected composition (see table 1).

Take, for example, 50 kg of clay (used in the manufacture of tiles to be glazed), 5 kg of quartz sand (washed and dried), 3 kg of chalk, 30 kg of lead lead, 8 kg of pyrolusite, 30 kg of blast furnace slag, 3 kg of calcium borate. The components are milled after passing through mesh 008. Prepare the glaze suspension with a moisture content of 45-47%. The suspension is applied in the form of a thin layer on the surface of the molded and dried tiles, the products with the applied layer are dried again and fired. The firing temperature is selected depending on the technology of tile production and the properties of the clay used in the glaze.

Table 1 Tiled Glaze Compositions Components The content in the compositions, wt.%: No. 1 Number 2 Number 3 Number 4 Clay 40 fifty 40 fifty Quartz sand 10 5 10 5 a piece of chalk 2 3 2 2 Litharge twenty thirty twenty thirty Pyrolusitis 6 8 10 10 Domain slag 60 thirty fifty thirty Calcium borate - 3 5 -

During firing, the glaze may not melt into a glassy liquid, but only form a sintered layer that is firmly held on the surface of the tile. As a result, a protective and decorative glassy coating having a matte black color is obtained on the tile.

The composition of the tiled glaze is not very expensive, it includes a large amount of metallurgical waste (blast furnace slag). Perhaps the use of the proposed glaze in the production of ceramic bricks.

Information sources

1. Patent No. 255748 NDP, C 03 C, 1986.

2. Hecht G. Ceramics / Per. with him. - L. - M .: The main edition of the chemical literature, 1938. - P.177.

Claims (2)

1. Tiled glaze, including clay, quartz sand, chalk, lead litharge, iron oxide, pyrolusite, characterized in that it further comprises blast furnace slag in the following ratio of components, parts by weight: clay 40-50 quartz sand 5-10 a piece of chalk 2-3 litharge 20-30 pyrolusitis 6-10 blast furnace slag 30-60 2. Tiled glaze according to claim 1, characterized in that it further comprises 3-5 parts by weight calcium borate.