RU2424204C1 - Ceramic mixture for making decorative tiles and panels - Google Patents

Abstract

FIELD: chemistry. ^ SUBSTANCE: invention relates to the technology of silicates and ceramic mixtures which can be used in making decorative tiles and art panels. The ceramic mixture for making decorative tiles and panels contains loess loam, kaolinite clay, expanded ground schungite and liquid potassium glass, with the following ratio of components in wt %: loess loam 81.8-89.5; kaolinite clay 2.0-3.0; expanded ground schungite 8.0-12.0; liquid potassium glass 1.0-1.5. ^ EFFECT: low burning temperature of articles. ^ 1 tbl

Description

The invention relates to the field of technology of silicates and relates to compositions of ceramic masses that can be used for the manufacture of decorative plates, art panels.

Known ceramic mass containing, wt.%: Loesslike loam 70.0-90.0; kaolinite clay 5.0-15.0; phosphorite 5.0–20.0 [1].

The objective of the invention is to reduce the firing temperature of products obtained from ceramic mass.

The technical result is achieved in that the ceramic mass for the manufacture of decorative plates and panels containing loesslike loam and kaolinite clay, further includes expanded ground schungite and liquid potassium glass in the following ratio of components, wt.%; loesslike loam 81.8-89.5; kaolinite clay 2.0-3.0; expanded ground shungite 8.0-12.0; liquid potassium glass 1.0-1.5. Ceramic mass for the manufacture of decorative plates and panels additionally includes pyrolusite in an amount of 1.0-5.0 wt.%.

To prepare the ceramic mass, loesslike loams containing, wt.%: SiO ₂ 50.58-55.08; Al ₂ O ₃ 11.58-13.16; Fe ₂ O ₃ 3.72-5.19; CaO 12.2-14.86; MgO 2.3-3.03; Na ₂ O 1.44-3.88; K ₂ O 0.73-0.94; pp pp 2.53-5.3.

Can be used kaolinite clay, characterized by the following composition, wt.%: SiO ₂ 46,02-46,5; Al ₂ O ₃ 38.69-40.17; TiO ₂ 0.47-0.52; Fe ₂ O ₃ 0.55-0.92; CaO 0.05-0.19; pp 13.34-13.97.

Use liquid potassium glass with a density of 1300-1500 kg / m ³ and a module of 3.6-4.

The table shows the compositions of the ceramic mass for the manufacture of decorative plates and panels.

Table Components Composition, wt.%: one 2 3 four Loesslike loam 89.5 85.8 81.8 84.0 Kaolinite clay 2.0 2.5 2.5 3.0 Exfoliated Ground Shungite 8.0 10.0 10.0 12.0 Liquid potassium glass 0.5 0.7 0.7 1,0 Pyrolusitis - 1,0 5,0 -

The components are dosed in the required amounts. Schungite is expanded, loaded into a ball mill, loesslike loam, kaolinite clay are added, dry crushed to a residue of not more than 2% on mesh 008. Then, with the addition of liquid potassium glass, a ceramic mass with a moisture content of 22-25% is prepared. Products of the required configuration, for example square plates with a side of 400 mm, are molded from a ceramic mass in a plastic way. The products are dried to a moisture content of 1-6%, painted on their surface with colored engobes, a layer of transparent colored or colorless glaze is sprayed and fired at a temperature of 970-990 ° С.

Information sources

1. SU 1548175, C04B 33/00, 1990.

Claims (2)

1. Ceramic mass for the manufacture of decorative plates and panels containing loesslike loam and kaolinite clay, characterized in that it further includes expanded ground schungite and liquid potassium glass in the following ratio of components, wt.%: Loesslike loam 81.8-89.5; kaolinite clay 2.0-3.0; expanded ground shungite 8.0-12.0; liquid potassium glass 1.0-1.5. 2. Ceramic mass for the manufacture of decorative plates and panels according to claim 1, characterized in that it further includes pyrolusite in an amount of 1.0-5.0 wt.%.