SU823326A1 - Opacified glass - Google Patents

Description

one

The invention relates to the production of jammed glass used for the manufacture of facing materials: carpet and mosaic tiles, glass marble and other products.

Known glass containing, wt.%: S i 0 / J 53-56, A1 /, Oz 3-6, 5.5-8, CaO 15, 3-l9-, 5, Mn0 3.5-7, 6 -9, BAO, 2-3, 3-4 I.

A disadvantage of the known composition is an insufficient degree of plugging. In addition, scarce materials (barium and boron compounds) are used as raw materials.

The purpose of the invention is to obtain glass with a high degree of jamming.

As a result of the studies, the phase separation was chosen as the most promising method that does not require the introduction of special silencers into the mixture. .

This object of the invention is achieved by the fact that glass, including / SiO, A1.0, .CaO, MqO.Naap .., additionally contains MpO in the following ratio of these components, wt.%:

SiOi 66-75 Ala.0 3.0 - 8.0

ten

3.5

14

ten

6.0

1.0

6.0

2.0

2.00, 2

2.0

0.2

Wherein .,.-,,.

RT

An increase in the degree of damping of the proposed composition is provided by the introduction of iron and manganese oxides, which, due to the large ion strength, contribute to the melt differentiation. This forms groups of different composition, the liquid becomes microheterogeneous and stratifies,

f

In addition, a greater amount of ° C compared to the known also enhances the degree of damping by increasing the volume of the droplet phase.

Optimal ratio n

component 1.1-1.4 in the proposed composition, prevents the homogenizing action of AlgO by binding them to sodium and alumophosphate complexes.

With a high content of {1 wt.%), Zinc oxide from 0.5-1.5 mlss.% Can be added to the glass composition to produce white jammed glass. Moreover, ZnO has a positive effect on the melt differentiation, similar to that of FeaOe.

To obtain colored facing tiles and other products from the jammed

glasses of the proposed composition can add known coloring additives to the mixture.

Electron microscopic study showed a uniform distribution of droplets of the damping phase in the volume of glass.

Specific compositions of jammed glass are given in table 1.

-Table I

The raw materials for the synthesis of glass are technical dolomite, double superphosphate, soda, chemical and mining waste, sulphate-silicon cake, which replaces sand.

Glasses of var t in gas furnaces in quartz crucibles x at 1500–1520 ° C,

90

95

0.001 0.001 0.001 0.001

holding time is 30 minutes, produced at 1320-1. ABO C / is cast into a metal mold in the form of discs of 150 mm and annealed in a muffle furnace at 600 -.

The reflection coefficient was determined 5 on an SF-10 spectrophotometer.

Properties of jammed glasses are given in table 2.

Table 2

75

85

0.1

, Continuation of table 2

Claims (3)

.Claim 1. Blown glass, including Si 0d_, Al ^ O-j, CaO, MqO, Na ^ O, # · ABOUT. 20 about t l and h and y u e e with me what with | purpose increase degree of jamming ! it additionally contains Fe Y ° E ^AND ’IGO in the next the ratio decree the components involved, wt.%: S i Ozj. 66 - 75 25 A1 ₂ ° 3 3.0 - 8.0 3,5 - 10 CaO 10-14 Mqo 1.0 - 6.0 Na ^ O 2.0 - 6.0 thirty Fe ^ oj 0.2 - 2.0 Μη 0 0.2 - 2.0 with THIS X 1'1-4. ^Ρ 2 ° 5 * - 2. The glass according to claim 1, o-l and more generally with the fact that, in order to bleach at a content of Fe ^ O- ^ l wt.%, It additionally contains ZnO in an amount of 0.5 -1.5 wt.%. 3. glass pop. 1, distinguish- further, in order to stain, it additionally contains at least one dye from the group CuO, Cr ^ O ^, N10, C ^ Au, CoO in the amount of 0.2-2.0 mass .%.