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Glaze. RU patent 2513817.

IPC classes for russian patent Glaze. RU patent 2513817. (RU 2513817):

C03C6/02 - containing silicates, e.g. cullet
Another patents in same IPC classes:
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FIELD: chemistry.

SUBSTANCE: glaze contains, wt %: scrap window and/or container glass 77-80; kaolin 2-3; borax 10-14; cryolite 6-8. The glaze has frost-resistance of 40 cycles. The glaze is fired at temperature of 830-900°C.

EFFECT: high frost-resistance of the glaze.

1 tbl

 

The invention relates to the technology of silicates and refers to compositions of glazes for application of facade ceramic tiles.

Known icing, comprising, mass%: the breakage and/or container glass 60-90; kaolin 5-20; at least one component of the group: sodium silicate, metasilikat of sodium, soda ash, potassium hydroxide, the melt of alkalis of NaOH, and KON 5-20 [1].

The objective of the invention consists in increasing the frost resistance glaze.

The technical result is achieved by the fact that the glaze, including breakage and/or glass containers, kaolin, additionally contains borax and cryolite in the following ratio of components, mass%: the breakage and/or container glass 77-80; kaolin 2-3; borax 10-14; cryolite 6-8.

In the table structures glaze.

Table

Components

Composition, wt.%

Breakage of glass

- window

77 40 -

- container

- 38,5 80 Kaolin 3 2,5 2 Bura 14 12 10

Cryolite

6 7 8

Frost resistance, cycles

approximately 40

approximately 40

approximately 40

Glaze obtained as follows.

Prepare and dispense components. The breakage and/or container glass crushed, mixed with other components and melted at temperature of 1400°N Melt granuliruth into the water. Received the Frit grind to a full pass through the sieve № 0056 and preparing a suspension with a humidity of 45%to 50%. The prepared suspension is applied (spraying, irrigation) on the surface of the tiles, dried and fired at a temperature of 830-900°N

Sources of information

1. A.S. №773031 the USSR, SW 41/00, 1980.

Glaze, including breakage and/or glass containers, kaolin, characterized in that it additionally contains borax and cryolite in the following ratio of components, mass%: the breakage and/or container glass 77-80; kaolin 2-3; borax 10-14; cryolite 6-8.

 

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