SU637381A1 - Ceramic mass - Google Patents

Description

The invention relates to the manufacture of building ceramics.

The known ceramic mass for the production of tiles, including (wt.%) Glium, the main sintering - 70, melt perlite and 27 chalk 3 1. Most close to the invention is a ceramic mass for the manufacture of facade tiles, including (wt.%) Clay 52, bentonite 3 , pitcher 10, floccula and pegmatite in the amount of 32 and chalk 3 (2}. However, the known ceramic masses for the manufacture of facade tiles are characterized by relatively low indicators of density and strength and high shrinkage of products.

The aim of the invention is to increase the density and strength and reduce shrinkage. In the proposed mass, including clay, descendent, flux and chalk, this is achieved by the fact that it contains acidic non-sintering and basic sintering clay with the following ratio of components, wt./o.: Clay sour non-sintering from 33-40 Clay is main sintering from 20-32

Cleaner J3-20

Plaven13-20

Chalk 4-6

In addition, the sour non-clay clay contains at least 5% CaO.

Claims (2)

Prepared masses, samples and tiles are carried out in accordance with the modern construction technology of ceramics: click-training of the masses by wet grinding in ball mills; drying the slip and receiving press powder; semi-dry pressing of products; drying and roasting in conveyor units for high-speed modes. The masses containing emaciated I melts are ground in a ball mill to a tonium, corresponding to a residue on a sieve of 10,000 holes / cm 2-4%. Semi-dry pressing of samples of size 8.5 x 4.3 x 0.7 cm is carried out on a laboratory press, and tiles of size 120 x 65 x 7 mm and 150 x 150 x 6 mm - on a KRKp-125 press with a mode of pressing samples; primary pressure - 3.5 MPa; secondary pressure - 11.0 MPa. Drying of the figurative and tiles is carried out with a radiant gas gas 20 m long for W min to a residual moisture content of 0.5%. The samples and tiles are fired in a roller 1-az () furnace 20 m in length and 45-50 minutes at a maximum rate (970-10404 :). Example /. Gl on sour uncooked 1, and with content of CaO L ° / o33 Clay is basic sintering with 32 Chamotte-cleaner 15 Melting-cullet 15 Mel5 Example 2. Clay non-souring with CaO content of 20% 36 Clay is basic sintering -29 Cleaner-Chamotte 15 Melting -glass16 Mel4 Example 3. Clay is non-caking with a CaO content of 25% 40 Clay is basic sintering with 20 Scraping agent 17 Smooth-cullet 17, Mel 6 The resulting ceramic tiles have the following properties: Water absorption, / о7,5- Density, 8 Bending strength, mPa27- Shrinkage,% 4.5- The obtained results are shown in Keeping 4–6% of chalk in the composition of the mass of имиmimineral acidic and baking with calcite contains a significant increase in strength, density and loosening of the tiles. The technical use of the invention in terms of its use can increase the level of the physical properties of building ceramics, in particular ceramic tiles, while using the available resources of clay raw material with rational use of available clay resources. Claim 1. Ceramic mass, mainly for the manufacture of facade tiles, including clay, wax, flux and chalk, characterized in that, in order to increase density, strength and shrinkage, it contains acid non-caking and basic sintering clay in the following ratio of components , wt.%: Clay sour non-sap 33-40 shcha s Clay basic sinter 20-32 shcha Sonic Cleaner Mel 2. The ceramic mass according to claim 1, wherein the clay is non-caking and contains CaO not less than 5%. Sources of information taken into account in the examination: 1, Pavlov V. F, and others. The use of chalk in production, floor tiles on conveyor-flow lines. M., “Glass and Ceramics, 1976, No. 4, p. 19-23. 2. (handbook "Building ceramics. M.," Stroyizdat, 1976, p. 180-183.