SU1063797A1 - Porcelain composition - Google Patents

Abstract

PORCELATED MASS, including refractory clay, kaolin, pegmatite, quartz sand and porcelain fights, characterized in that, in order to shorten the time of product design and increase heat resistance, it contains these components in the following ratio, wt.%: 6-9 Refractory clay 14-18 Kaolin 26-29 Pegmatite 29-31 Quartz sand 20-22 Porcelain bout

Description

35

00

with

The invention relates to compositions of ceramic masses and can be used in the production of sanitary porcelain products.

The known composition of the mass ij-for products, including clay, perlite, carbonate manganese ore and bottle glass in the following ratio of the indicated componeites, wt.%: Clay 37-42 Perlite 7-10

Carbonate manganese ore33-36 Bottle glass 15-25

The disadvantage of this composition is the long period of registration of sanitary products (18.5-22 hours), which is a brake on the mechanization of labor-intensive casting technology.

Closest to the proposed one is porcelain mass 2, including refractory clay, kaolin, pegmatite, quartz sand and porcelain bout in the following ratio of components, wt.%:

Refractory clay 13-23 Kaolin27-30

Feldspar18-20

Quartz sand22-27

Porcelain Battle8-12

The disadvantage of this porcelain aces is the long period of product design (18.5-2-2 hours), as well as the low temperature resistance of the product.

The purpose of the invention is to reduce the fate of product design and increase heat resistance.

This goal is achieved by the fact that the porcelain mass, including refractory clay, kaolin, pegmatite, varietal sand and porcelain fights, will gain these components at the following ratio, maso%: Refractory clay. 6-9 Kaolin 14-18

Pegmatite26-29

Quartz sand 29-31 Porcelain stand20-22

Foundry porcelain mass (slip) is sent by separate grinding of non-plastic materials (quartz sand, pegmatite, porcelain bo) in ball mills and their subsequent mixing with plastic materials previously diluted in propeller mixers - refractory clay and kaolin. Electrolytes by weight of dry matter were injected into the schlicker: soda ash O, 1J-soluble glass 0.1-0.13. The grinding is carried out to a residue on sieve No. 006 1. about "

Products are cast in plaster molds. . Semifinished product after casting goes to the basement and then to the drying. The sub can be carried out directly in and on the shelves. Drying is carried out in a tunnel dryer at the initial temperature of the heat carrier 40-5.S and the final 90-100 C. Continued; 2 hours 24-30 h. Dried semi-finished product subjected to kerosene control and glazed by dipping. Roasting products. It is carried out in tunnel kilns at 1230-1260 ° С. The duration of roasting is 22-24 hours.

In tab. 1 shows the specific compositions of porcelain masses, in table. 2 properties of the samples obtained.

The proposed mass, which allows to significantly speed up the casting process f, behaves satisfactorily at all stages of the casting, drying and roasting process, and the finished products made from it are water-absorbent and heat-resistant fully meet the requirements.

As can be seen from the above data, the proposed mass has improved filtration properties, which allows you to design products for 1.53 hours, while the known mass allows you to design products for 18.522 hours.

Thus, the proposed mass can significantly accelerate the process of pouring sanitary products while improving the properties of the resulting porcelain.

T a b

and c

Refractory clay Kaolin Pegmatite Quartz sand Porcelain fight

19 29 20 22

9

18 26 29 20

14 26 29 22

ten

Set shard (method-gigold / cm

Time of product design (set of shard and its fixation), h

Humidity of the casting mass,% Shrinkage,.%:

air

total water absorption,%

Flexural strength of baked samples, kg / cm

Resistance to pricing (thermal resistance of products), heat change (GOST 13449-78)

table 2

0.36 0.38 0.38 0.27-0.31

1.5-3 .1.5-3 1.5-3 18.5 27.5 29.5 29.7 31.2-32

3.4 3.4 3.0

3-4

2 12.2 12.0

12-13

0.2 0.3 0.2

0.2-0.5

850

800

800

600-800

6-8

6-8

6-8

Claims (1)

PORCELAIN MASS, including refractory clay, kaolin, pegmatite, quartz sand and porcelain battle, characterized in that, in order to reduce the time of product design and increase heat resistance, it contains these components in the following ratio, wt.% :. , Refractory clay 6-9 Kaolin .14-18 Pegmatite26-29 Quartz sand29-31 Porcelain battle 20-22>