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Glaze composition

IPC classes for russian patent Glaze composition (RU 2508277):
C04B41/86 - Glazes; Cold glazes
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FIELD: chemistry.

SUBSTANCE: glaze composition contains the following components, wt %: quartz sand 60.0-62.0; borax 7.0-9.0; potash 4.0-5.0; zirconium dioxide 6.0-7.0; diamond beneficiation wastes in amount of 19.0-21.0, characterised by the following mineral composition, wt %: serpentine 70.0; calcite 2.0; dolomite 28.

EFFECT: high heat resistance of the glaze.

1 tbl

 

The invention relates to the technology of silicates and concerns of blended compositions of glazes for use on ceramic tiles, glazed tiles.

Known charge the glaze composition, comprising, by wt.%: quartz sand 41,5; dolomite 11,3; borax 29,9; alumina 7,9; chalk 11,3; potash 5,4; zirconium dioxide 6,6; soda ash 1,4 [1].

The objective of the invention is to increase the heat resistance of the glaze.

The technical result is achieved by the fact that the charge composition of the glaze, including silica sand, borax, potash, zirconium dioxide, additionally includes waste allatombamise characterized by the following mineral composition, wt.%: serpentine 70,0; calcite 2,0; dolomite 28, and the components are in the following ratio, wt.%.: quartz sand 60,0-62,0; borax 7,0-9,0; potash 4,0-5,0; zirconium dioxide 6,0-7,0; these waste allatombamise 19,0-21,0.

The table shows the variations of the charge composition of the glaze.

Table
Components Composition, wt.%
1 2 3
Sand quartz 60,0 61,0 62,0
Borax 9,0 8,0 7,0
Potash 4,0 4,5 5,0
The Zirconia 6,0 6,5 7,0
Waste allatombamise 21,0 20,0 19,0
Temperature glaze (heating to 100°C - cooling to 20°C in water), thermal cyclings 25-30 25-30 25-30

Waste allatombamise is a large man-made sand, consisting of ultrabasic rocks. Mineral waste composition comprises, by wt.%: serpentine 70,0; calcite 2,0; dolomite 28.

The components are crushed, dosed in the required quantities, mixed and cooked the charge when the temperature is 1450-1500°C cook Frit. Melt granularit in the water. The Frit is ground to a complete pass through mesh No. 0056 and prepare the suspension humidity of 45-55%. The finished glaze slurry is applied (spray irrigation) on the surface of the ceramic products, air-dried is calcined at a temperature of 1150-1170°C.

Sources of information

1. Kachkaev I.S. and other Production front ceramic products. - M.: stroiizdat, 1977. - P.150-151.

Charge composition of glazes, including silica sand, borax, potash, zirconium dioxide, characterized in that it further includes a waste allatombamise characterized by the following mineral composition, wt.%: serpentine 70,0; calcite 2,0; dolomite 28, and the components are in the following ratio, wt.%: quartz sand 60,0-62,0; borax 7,0-9,0; potash 4,0-5,0; zirconium dioxide 6,0-7,0; these waste allatombamise 19,0-21,0.

 

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