SU698955A1 - Ceramic mass - Google Patents

Description

(54) CERAMIC MASS

one

The invention relates to the building materials industry and can be used for the manufacture of sanitary construction products, mainly porcelain.

Ceramic mass is known for making porcelain products, including the following components, wt%: Kaolin30

Clay2O

Quartz sand22

Feldspar18

Porcelain fight 10 l.

Closest to the invention is a ker-1-wt mass for the manufacture of porcelain products, including the following components, wt%:

Kaolin45

Clay2

Quartz sand23

Quartz - felted sand30 2.

The disadvantage of the ceramic mass is the increased calcination temperature of 13OO s and the strength of the products is not high enough - 766 kg / cm.

The aim of the invention is to reduce the firing temperature and increase the strength of the products.

This is achieved by the TGM, that the ceramic mass, including clay, kaolin and quartz polystyrene sand, additionally contains perlite in the following ratio of components, wt.%:

Clay20-25

Kaolin 23-32

Quartz - felted sand 23-45

Perlit 7-25.

Quartz - Darpvets feldspar sand has the following mineralogical composition: quartz 6O-65%; field feldspar 35–40%, represented mainly by potassium and sodium feldspars, the ratio К „О: - 1: 8, which together with perlite provides a favorable flux effect.

which is the basis for reducing the sintering temperature of ceramics.

Products made by the following technology. The components of the ceramic mass were crushed, carefully re-mastered in / I-ball in ball shape and after reaching the third section, ensuring the passage through the I / OOR screen hole / cm, they are poured into plaster molds. With a set of the appropriate thickness (10-12 mm) of the skull, the samples are removed from the mold, existing and burned in a tunnel kiln at 1200-1220 C.

The invention is illustrated by the specific examples given in tab. one.

Properties of products are given in table. 2

The resulting sashggar building ceramics. The products are characterized by a shard with a shell fracture, high mechanical bending strength - 800-900 kg / cm, low OH water absorption, 2%, high heat resistance (more than 3 cycles). These indicators determine that GOST 13449-68.

Table 1