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Manufacturing method of matte transparent glazed ceramic sheet

A manufacturing method and technology of transparent glaze, applied in the field of ceramic building decoration materials, can solve the problems of brick shape inversion, glaze strength and thermal stability reduction, easy ink penetration, etc.

Active Publication Date: 2020-11-17
FOSHAN SANSHUI NEW PEARL CONSTR CERAMICS IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, relatively matt transparent glazes are very rare in the market, mainly due to the fact that matt and transparent glazes are a pair of contradictions. Matte is a slow reflection, which requires a certain opacity phase, which in turn will affect the transparent effect. In order to adjust the transparency of matt porcelain, it is necessary to reduce the opacity phase such as zirconium dioxide, but the reduction of zirconium dioxide will lead to the decrease of glaze strength and thermal stability, and it is easy to see through ink and the brick shape is warped

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of matt transparent glazed tiles:

[0034] a. According to the important percentage of frit raw materials: quartz sand 17.2%, kaolin 25.3%, dolomite 3.5%, calcite 15.2%, soda ash 2.5%, potassium feldspar 23.2%, barium carbonate 11.9%, strontium carbonate 1.2%. After weighing the raw materials and mixing them, they are put into the frit furnace to be calcined and melted at 1400°C, and then flow out of the frit furnace and quenched into frit particles for later use. The chemical composition of the frit is: SiO 2 55.7%, Al 2 o 3 14.5%, MgO 1.4%, CaO 11%, Na 2 O is 1.8%, K 2 O is 3.5%, SrO 2 1%, BaO 10.7%, ignition loss 0.3%, Fe 2 o 3 +TiO 2 0.1%.

[0035] b. Weigh 80.2% of frit, 11.2% of calcined zinc oxide, 8.2% of air-knife soil, 0.1% of methyl cellulose, and 0.3% of sodium tripolyphosphate according to the raw material of matte transparent glaze, and the water content is 39% by weight of dry material Add and ball mill for 8-12 hours to obtain glaze...

Embodiment 2

[0041] Preparation of matt transparent glazed tiles:

[0042] a. According to the important percentage of frit raw materials: quartz sand 15%, kaolin 23%, dolomite 3.5%, calcite 17%, soda ash 2.5%, potassium feldspar 23.2%, barium carbonate 12.8%, strontium carbonate 3%. After weighing the raw materials and mixing them, put them into the frit furnace to be calcined and melted at 1600°C, and then flow out of the frit furnace and water-quench to form frit particles for later use. The chemical composition of the frit is: SiO 2 53%, Al 2 o 3 13.5%, MgO 1.4%, CaO 12.3%, Na 2 O is 1.8%, K 2 O is 3.5%, SrO 2 2.6%, BaO 11.5%, ignition loss 0.2%, Fe 2 o 3 +TiO 2 0.2%.

[0043] b. Weigh 92.8% of frit, 3% of calcined zinc oxide, 3.9% of air-knife soil, 0.1% of methyl cellulose, and 0.2% of sodium tripolyphosphate according to the raw materials of matte transparent glaze, and the water content is 39% by weight of dry material Add and ball mill for 8-12 hours to obtain glaze slur...

Embodiment 3

[0049] Preparation of matt transparent glazed tiles:

[0050] a. According to the important percentage of frit raw materials: quartz sand 19%, kaolin 25.3%, dolomite 5%, calcite 15.2%, soda ash 2.5%, potassium feldspar 20%, barium carbonate 12%, strontium carbonate 1%. After weighing the raw materials and mixing them, put them into the frit furnace to be calcined and melted at 1500°C, and then flow out of the frit furnace and water-quench to form frit particles for later use. The chemical composition of the frit is: SiO 2 55%, Al 2 o 3 13.2%, MgO 1.7%, CaO 12.7%, Na 2 O is 1.7%, K 2 O is 3.2%, SrO 2 0.9%, BaO 11.1%, ignition loss 0.1%, Fe 2 o 3 +TiO 2 0.4%.

[0051] b. Weigh 84.7% of frit, 7% of calcined zinc oxide, 7.8% of air-knife soil, 0.15% of methyl cellulose, and 0.35% of sodium tripolyphosphate according to the raw materials of matt transparent glaze, and the water content is 38% by weight of dry material Add and ball mill for 8-12 hours to obtain glaze slurr...

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PUM

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Abstract

The invention provides a manufacturing method of a matte transparent glaze ceramic sheet. The method comprises the following steps: spraying a biscuit with a ground glaze, printing, spraying with a matte transparent glaze, firing, and edging to obtain the finished product, wherein the matte transparent glaze comprises the following raw materials in percentage by weight: 80-93% of frit, 3-11% of calcined zinc oxide, 4-8% of air knife soil, 0.1-0.4% of methyl cellulose and 0.2-0.6% of sodium tripolyphosphate, and the frit is prepared from calcite, barium carbonate, strontium carbonate, potassiumfeldspar, kaolin, sodium carbonate, quartz sand and dolomite. According to the invention, zirconium dioxide is not added into the obtained matte transparent glazed ceramic sheet, transparency is good, calcined zinc oxide is used for adjusting expansion of glaze to achieve the purpose of adjusting the shape of a brick, and air knife soil improves the suspension property and viscosity of the glaze;and after the matte transparent glaze is sintered, the glossiness is 5-20 degrees, the glaze surface is smooth, a printing layer can be placed below the matte transparent glaze, the printing layer isprevented from being scratched, and the matte transparent glaze layer can also be used for polishing.

Description

technical field [0001] The invention belongs to the field of ceramic building decoration materials, and in particular relates to a method for manufacturing a matt transparent glazed porcelain sheet. Background technique [0002] Porcelain tiles are a kind of ceramic tiles in ceramic tiles, which have many names such as interior wall tiles and glazed tiles. Porcelain tiles are ceramic tiles with a water absorption rate between 10% and 20%. Currently, the water absorption rate on the market is generally around 16%. The main place of use is indoors. Traditional glazed tiles are classified according to the gloss due to the limitation of the type of glaze formula. There are usually glazed tiles with glossy and matte gloss effects. The glossiness of bright glazed tiles is between 90-98°, and the glossiness of matte glazed tiles The gloss is between 10-30°. [0003] Glossy tile products are currently the mainstream in the market, but matte glazed tile products are slowly becoming...

Claims

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Application Information

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IPC IPC(8): C04B41/86C04B41/89C03C8/02C03C8/14
CPCC03C8/14C03C8/02C04B41/5022C04B41/86C04B41/52C04B41/89C04B41/009C04B35/00C04B41/504
Inventor 叶德林韦前李辉黄诗程谢石长
Owner FOSHAN SANSHUI NEW PEARL CONSTR CERAMICS IND
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