SU1447798A1 - Ceramic composition - Google Patents

Abstract

The invention relates to the manufacture of porcelain stoneware. In order to increase the strength of products, the ceramic mass includes the following components, May. % J quartz sand 20-35; clay 15-25; kaolin 10-25; battle porcelain 2-10; plagioclase 20-30. Moreover, plagioclase has the following x1-1mic composition, wt.%; SO2 65.0-68.0; A1gO, 19.0-21.5; 0.05-0.35; Tyu 0.01-0.35; CaO 0.1-2.0; MgO 0.01-0.80; K, 0 3.5-5.5; 4.4-10.0, and the porcelain bout is introduced in the following composition, May. %: SiO 63.0-68.0; , 26.2- 29.7; FeO, 0.3-0.7; South 0.3-0.7; CaO 0.2-1.0; MgO 0.15-0.30; 0.7-1.4; 1.6-3.2. Static bending strength is 99-109MPa1 2 Cp. f-ly. 1 tab. (L

Description

4 i4 h «h

About 00

This invention relates to ceramic industry. mainly for the production of silicate porcelain insulators. The purpose of the invention is to increase strength.

The preparation of mass slips is carried out according to the following procedure.

In a ball mill load quartz sand, the battle of porcelain products, plagioclase and water. After grinding the residual components, clay materials (clay and kaolin) are added.

The contents of the mill are mixed, the resulting slip is dehydrated on a filter press, after which the mass is fed to a vacuum press. Samples of 10 mm diameter and 120 mm length are made from the mass by extrusion. Samples are calcined and tested for flexural strength according to GOST 24409-80,

The table shows the composition of ceramic masses,.

In the manufacture of masses used plagioclase three different chemical compositions, May,%:

in examples 1-2 SiO. 65fO; 20.54; , 0.05; TiO ,, 0.01; CaO 0.1; MgO 0.8; 3.5;

 10.0;

in examples 3-4 SiOj 68.0; AlzO, 19.0; FejO, 0.35; TiO 0.35; CaO 2.0; IgO 0.4; 5.5; Na, 0 4.4;

in examples 5-6, SiO 65.7; , 21.5; , 0.23; TiO 0.22; CaO t, 34; MgO 0.01; 4.3; 6.7;

as well as the battle of porcelain of different chemical composition, May,%:

in examples 1-2, SiO 63.0; Al2.0j 29.7; , 0; 7; TU 0.7; CaO 1.0; MgO 0.3; KjpO 1.4; 3.2;

in examples 3-4 SiOj 67.0; 29.1; Fe20, 0.3; TiO 0.3; CaO 0.85; MgO 0.15; 0.7; NaiO 1.6;

in examples 5-6, SiOz 68.0; 26.2; , 0.6; 0.7; CaO 0,2; MgO 0.3; CgO 1,2; 2.8,

Below are the indicators of strength:

0

Composition

five

0

five

Claims (1)

1 2 3 4 5 6 7 five 0 Static Flexural Strength, MPa 107 109 105 100 99 106 78 (prototype) Pho. Ceramics of the invention Ceramic mass, mainly for the manufacture of insulators, including quartz sand, clay, kaolin, porcelain blasts and alkali-containing flux, characterized in that, in order to increase the strength, it contains plagioclase in the following ratio components, mass,%: Quartz sand Clay Kaolin Porcelain fight products Plagioclase 2, Mass according to claim, 1, y and with the fact that the following chemical composition, wt.%: SiOt65.0-68.0 , 19.0-21.5 , 0.05-0.35 TiOz0.01-0.35 CaO0,1-2,0 MgO0,0i-0,80 KjO3,5-5,5 4-10,0 3, Mass of pop, 1, differs with the fact that the battle of porcelain products has the following chemical composition, May,%. SiOa63.0-68.0 26.2-29.7. 0.3-0.7 0.3-0.7 20-35 15-25 10-25 2-10 20-30 I have - plagioclase has 0 AliO, , Tio j Cao MgO Naj, 6 0.2-1 .0 0.15-0.30 0.7-1.4 1.6-3.2