RU2484048C1 - Ceramic mixture - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to compositions of ceramic mixtures which can be used in making sanitary ware. The ceramic mixture contains clay, kaolin, quartz sand, potsherd, cobalt sulphate and silica gel, with the following ratio of components, wt %: clay - 31.0-38.0; kaolin - 25.0-30.0; quartz sand - 6.0-8.0; potsherd - 22.98-24.96; cobalt sulphate - 0.02-0.04; silica gel - 6.0-8.0.

EFFECT: low firing temperature of articles.

1 tbl

Description

The invention relates to compositions of ceramic masses that can be used for the manufacture of sanitary products.

Known ceramic mass containing, by weight. %: clay 29.0; kaolin 27.0; silica sand 28.0; ceramic skull 16.0; electrolytes 0.15-0.2; cobalt sulfate 0.03 [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, including clay, kaolin, quartz sand, a ceramic skull, cobalt sulfate, additionally contains silica gel in the following ratio of components, wt. %: clay 31.0-38.0; kaolin 25.0-30.0; silica sand 6.0-8.0; ceramic skull 22.98-24.96; cobalt sulfate 0.02-0.04; silica gel 6.0-8.0.

As part of the ceramic mass, high-quality white-burning clays and kaolins of any deposits can be used.

The table shows the composition of the ceramic mass.

Table Components Composition, wt. %: one 2 3 Clay 38,0 35.0 31,0 Kaolin 25.0 27.0  30,0 Quartz sand 6.0 7.0 8.0 Ceramic skull 22.98 23.97 24.96 Cobalt sulfate 0.02 0,03 0.04 Kremnegel 8.0 7.0 6.0 Firing temperature, ° C 1000-1050 1000-1050 1000-1050

The components are dosed in the required quantities, loaded into a ball mill, poured water and grinding the components for 6-8 hours to a residue of 3-4% on a sieve 0056. The moisture content of the slurry take 36-44%. Using the obtained slip in gypsum molds, articles of the desired configuration are cast. Cast products wither in molds to a moisture content of 18-21%, at which the castings freely separate from the walls of the molds. Then the products are dried to a moisture content of 1-6%, a layer of glaze is sprayed on their surface and sent for firing, which is carried out at a temperature of 1000-1050 ° C.

Information sources

1. Poduboyarinov D.N., Balkevich V.L. Handbook for the production of building ceramics. Finishing and special building ceramics. - M .: State. publishing house of literature on construction, architecture and building materials, 1961. - P.122.

Claims (1)

Ceramic mass, including clay, kaolin, silica sand, ceramic skull, cobalt sulfate, characterized in that it additionally contains silica gel in the following ratio of components, wt. %: clay - 31.0-38.0; kaolin - 25.0-30.0; quartz sand - 6.0-8.0; ceramic skull - 22.98-24.96; cobalt sulfate - 0.02-0.04; silica gel - 6.0-8.0.