Preparation method of wet-process dry-grain polished crystal brick and polished crystal brick

A technology of polished crystal bricks and dry granules, which is applied in the field of architectural ceramic bricks, can solve problems such as air bubbles, pinholes, concave glaze, air bubbles are not easy to be quickly discharged, and affect production efficiency, so as to achieve convenient adjustment of glaze amount and improve anti-corrosion. Pollution ability and short firing cycle

Active Publication Date: 2020-04-10
FOSHAN OCEANO CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the dry primary firing process currently used in the production of polished crystal bricks, (1) Since this process uses a combination of thick and fine dry grain frits, in order to make the dry grains on the surface of the dry grains can be melted to the greatest extent, it is necessary to accumulate on the brick surface The dry granules with a thickness of 2 to 5 kg / ㎡ can polish the glaze surface in the polishing process. At the same time, it is necessary to spray a layer of protective glaze to fix the dry granule layer after the dry granule frit is applied. The production is more complicated; thicker dry granules The granular layer makes it difficult for the air bubbles generated by the glaze layer and the brick to be quickly discharged, and defects such as air bubbles, pinholes, and concave glazes are prone to occur
(2) Distributing dry granules requires a new set of equipment such as a dry granule distribution machine on the glaze line, which requires a large investment
(3) Due to the high composition of coarse dry grain frit, in order to make the glaze surface as flat as possible, the firing temperature is high and the firing cycle is long, which affects production efficiency

Method used

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  • Preparation method of wet-process dry-grain polished crystal brick and polished crystal brick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method of wet-process dry-grain polished crystal bricks, comprising the following steps: (1) preparing adobe; the powder particle gradation of the adobe is 40-60 mesh, and the moisture content of the powder is controlled at 6.9%; (2) the first Secondary drying; the drying temperature is 150°C, and the drying cycle is 75 minutes; (3) spray water on the adobe; the water spray volume is 80g / m 2 ; Control the brick temperature to 100°C; (4) Apply surface glaze; The amount of application is 505g / m 2 ; (5) Inkjet printing; (6) Apply dry granular protective glaze in the way of bell jar pouring glaze, and the amount of application is 1100g / m 2 (7) second drying; the temperature of the drying kiln is 180°C, the drying cycle is 6-8 minutes, and the temperature of the bricks leaving the drying kiln is 60°C; (8) firing and molding; the firing temperature is 1170-1175°C, The firing cycle is 75min.

[0037] A wet-process dry-grained polished crystal brick, which compr...

Embodiment 2

[0041] A method for preparing wet-process dry-grain polished crystal bricks, comprising the following steps: (1) preparing adobe; the powder particle gradation of the adobe is 60-80 mesh, and the moisture content of the powder is controlled at 7.2%; (2) the first Secondary drying; the drying temperature is 155°C, and the drying cycle is 60 minutes; (3) Spray water on the adobe; the water spray volume is 90g / m 2 ; Control the temperature of the brick adobe to 90°C; (4) Apply top glaze; The amount of application is 500g / m 2 ; (5) Inkjet printing; (6) Applying dry granular protective glaze in the way of bell jar pouring glaze, and the amount of application is 1050g / m 2 ; (7) second drying; the temperature of the drying kiln is 170°C, the drying cycle is 6-8 minutes, and the temperature of the adobe leaving the drying kiln is 50°C; (8) firing molding; the firing temperature is 1170-1175°C, The firing cycle is 80min.

[0042] A wet-process dry-grained polished crystal brick, whic...

Embodiment 3

[0046] A preparation method of wet-process dry-grain polished crystal bricks, comprising the following steps: (1) preparing brick adobes; the powder particle gradation of the adobe bricks is 20-40 meshes, and the moisture content of the powder materials is controlled at 6.7%; (2) the first Secondary drying; the drying temperature is 175°C, and the drying cycle is 65 minutes; (3) Spray water on the adobe; the water spray volume is 70g / m 2 ; Control the temperature of the adobe to 115°C; (4) Apply surface glaze; The amount of application is 459g / m 2 ; (5) Inkjet printing; (6) Applying dry granular protective glaze in the way of bell jar pouring glaze, and the amount of application is 1150g / m 2 (7) second drying; the temperature of the drying kiln is 160°C, the drying cycle is 6-8 minutes, and the temperature of the bricks leaving the drying kiln is 65°C; (8) firing and forming; the firing temperature is 1170-1175°C, The firing cycle is 85min.

[0047] A wet-process dry-grained...

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Abstract

The invention discloses a preparation method of a wet-process dry-grain polished crystal brick and the polished crystal brick. The preparation method comprises the following steps: preparing a green brick; performing drying for the first time; applying surface glaze; performing ink-jet printing; applying dry particle protective glaze; performing drying for the second time; and performing firing and molding. The wet-process dry-grain polished crystal brick sequentially comprises a green brick layer, a cover glaze layer, a printing layer and a dry-grain protective glaze layer from bottom to top.The polished crystal brick with excellent performance is prepared by controlling production process parameters and the setting of proper components and proportion of dry particles and dry particle protective glaze. The method is suitable for existing production equipment, and a production line does not need to be modified; a glaze spraying process is adopted, a glaze layer is more uniform, and abell jar is adopted for glaze spraying, so that the glaze amount is more convenient to adjust, and the recycle is easy; the required glaze layer is thinner and is only 1/5 of the dosage of dry-processdry particles, so that the dosage is lower, the firing period is shorter, the production cost is reduced, and the production efficiency is improved; meanwhile, compared with a dry method, the defectsof bubbles, pinholes and the like of the glaze layer are fewer, and color development is finer and richer.

Description

technical field [0001] The invention relates to the technical field of building ceramic bricks, in particular to a preparation method of wet-process dry grain polished crystal bricks and polished crystal bricks. Background technique [0002] The biggest advantage of polished crystal tiles is that it has stronger physical and chemical properties compared with other polished glazed tiles. Wear resistance, pressure resistance, acid and alkali resistance and skid resistance are all very good. At the same time, due to the high composition of the glass when it is fired at high temperature, it has high gloss, fine hair color, strong three-dimensional effect, and shows a crystal clear appearance. The decorative effect is deeply loved by consumers. [0003] However, the dry primary firing process currently used in the production of polished crystal bricks, (1) Since this process uses a combination of thick and fine dry grain frits, in order to make the dry grains on the surface of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/02C03C8/14C03C8/20B28B11/00B28B11/04B28B11/24
CPCC03C8/14C03C8/02C03C8/20B28B11/044B28B11/243B28B11/001
Inventor 张良刘俊荣
Owner FOSHAN OCEANO CERAMICS
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