RU2301217C1 - Brick glaze - Google Patents

Abstract

FIELD: manufacture of building materials; production of glaze applied on ceramic bricks.

SUBSTANCE: proposed brick glaze contains low-melting clay, chalk, yellow lead, pyrolusite and metallurgical slag at the following ratio of components, mass-%: low-melting clay, 90-100; chalk, 10-15; yellow lead, 40-50; pyrolusite, 6-10; metallurgical slag, 1-30. Brick glaze additionally contains 10-15 parts by weight of broken glass.

EFFECT: low cost.

2 cl, 1 tbl

Description

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

Known glaze containing clay, metallurgical (copper) slag, frit, corundum [1]. Such glaze is not intended for application to ceramic bricks.

Known brick glaze, including, parts by weight: fusible clay 100; chalk 10; lead litharge 57; pyrolusite 8 [2].

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

The technical result is achieved in that the brick glaze, including low-melting clay, chalk, lead litharge, pyrolusite, additionally contains metallurgical slag in the following ratio of components, parts by weight: low-melting clay 90-100; chalk 10-15; lead litharge 40-50; pyrolusite 6-10; metallurgical slag 10-30. Brick glaze additionally contains 10-15 parts by weight. cullet.

Glaze is prepared as follows.

Prepare and dose the components, according to the selected composition, table 1. As metallurgical slag, blast furnace slag is preferably used.

Take, for example, 100 kg of fusible clay (used in the manufacture of bricks to be glazed), 15 kg of chalk, 40 kg of lead lead, 10 kg of pyrolusite, 10 kg of blast furnace slag, 15 kg of cullet (sheet or container glass). The components are milled to fully pass through mesh 008.

Humidity of the glaze suspension is 45-47%. The suspension is applied in the form of a thin layer on the surface of the brick after it is dried, the products with the applied layer are dried again and fired.

Table 1 Brick Glaze Compositions Components Content in the formulations. weight parts No. 1 Number 2 Number 3 Number 4 Fusible clay 90 one hundred one hundred one hundred a piece of chalk 10 fifteen 10 fifteen Lead glieg fifty 45 40 40 Pyrolusitis 6 8 10 10 Metallurgical slag: domain thirty - - 10 steelmaking - twenty - - copper smelter - thirty - Cullet 10 - - fifteen

During firing, the glaze may not melt into a glassy liquid, but only form a sintered layer, firmly held on the surface of the brick. The firing temperature is selected depending on the technology of brick production and the properties of clay used in the glaze. The result is a brick with a protective and decorative glassy coating having a color from dark brown to black.

The composition of the glaze has a low cost, includes a large amount of waste (metallurgical slag, cullet).

Information sources

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

2. Hecht G. Pottery. / Per. with him. - L.-M.: Main edition of chemical literature, 1938. - P.177.

Claims (2)

1. Brick glaze, including fusible clay, chalk, lead litharge, pyrolusite, characterized in that it further comprises metallurgical slag in the following ratio of components, parts by weight: fusible clay 90-100 a piece of chalk 10-15 litharge 40-50 pyrolusitis 6-10 metallurgical slag 10-30 2. Brick glaze according to claim 1, characterized in that it further comprises 10-15 parts by weight cullet.