SU887531A1 - Ceramic mass - Google Patents

Description

The invention relates to compositions of masses for the manufacture of ceramic products, for example facing tiles. Ceramic mass for the manufacture of building products, including clay and clay expanded clay waste fl. Closest to the offer is a ceramic mass for the manufacture of building products, comprising the following components, wt.%; Sawdust Pyramunite ceramsite production Clay is lightly melted. The Rest .. The disadvantages of the known ceramic compositions are high water absorption (15-16%) firing temperature (). The aim of the invention is to reduce the firing temperature and water absorption. This goal is achieved due to the fact that the ceramic mass, mainly for the manufacture of tiles, including low-melting clay and ceramsite clay pyleounos, contains non-melting low-melting clay with calcium carbonate content of 10-20% in the following ratio, wt.%: Non-melting clay with a calcium carbonate content of 10–20% 15–30 Peljunose ceramsite production 70–85 In addition, the introduction of keramzite production into the pulverized mass may contain 7–10% iron oxides. Expanded clay pyrolonos are parts of calcined, dihydrated, and dry -clay. They are not plastic (the plasticity number is 5) and not sensitive to drying (Kji 0.6). The content of iron oxides in claydite dust extracts is 710%. The grain composition of dusting is characterized by a content of particles from 0.08-0.14 mm in the amount of 25-30%, which include calcined particles.

During the interaction of the claydite production pitcheunos and the clay, the substances are transferred to the pyroplastic state, and sintering (the formation of a low-melting eutectic) is carried out at a low calcination temperature.

At the same time, a sufficient number of particles form the structural frame of the tile, helping to preserve its shape and size.

Ceramic mass is prepared by slip method with joint grinding of the components making up the mixture in a ball mill to a residue on a sieve of 0.06-4%. The mass is pressed at a pressure of 250 kg / cm Roasting speed. The duration of specific firing 40 min. Roasting temperature 950 C. Table. shows the properties of products derived from the proposed and known mass.

Offered

Dusty claydite production with an iron oxide content of 7%

The fusible clay is non-caking with a calcium carbonate content of 10%.

Pyraunosa expanded clay production with an iron oxide content of 10%

The fusible clay is non-caking with a calcium carbonate content of 20% 30

Pyramunite ceramsite production25-38

Sawdust9-13

Clay fusible 49-6615-16

The advantage of the mass is the utilization of waste of claydite production and the use of low-melting carbonate non-sintered clay in the production of facing tiles, as well as a decrease in water absorption and firing temperature.

The economic effect from the introduction of the mass is 74 thousand rubles. with a capacity of 100 thousand meters of tiles per year.

4.9

950

8.9

3.8

950

9.3

2.4-3.5 1000

Claims (2)

1. Ceramic mass, mainly for the manufacture of tiles, which includes low-melting clay and ceramsite clay dust, making it contain, in order to reduce the firing and water absorption temperatures, low-melting clay with non-melting calcium carbonate content of 10-20% at 5 887531.6 The following ratio of components, Sources of information, wt.%; taken into account in the examination of clay, a fusible non-sequestered with t Technologic studies of the content of carbonaceous porous fillers  -one. Oft5 and kepai “ki M., stroiizdat, 1974, 10-20% 15-30d Q2. Pyraunosa claydite production 70-85 2. Mass according to claim 1, distinguished by-2. Reference information VNIIHI Scha and with the fact that dust removal keram-.Q series Ceramic industry zitovogo production contain 7-10% of wall materials and porous iron seals, M., 1971, vol. 9, p. 4-1.