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Manufacturing method of soft-light glazed ceramic chip

A manufacturing method and technology of soft glaze, applied in the direction of manufacturing tools, glass manufacturing equipment, glass furnace equipment, etc., can solve the problems of difficult control of firing temperature, increase of polishing cost, and increase of polishing process, so as to increase hardness and improve bonding Performance, effect of increasing opacity

Active Publication Date: 2020-11-03
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

The frits of the above-mentioned soft light brick surface glaze account for less than half, the main disadvantage is that the production is difficult to control, and its raw materials account for a large proportion, which is prone to pinholes and cause dirt absorption. At the same time, it is difficult to control the firing temperature, and sometimes it is more bright. sometimes matt
2. Full-frit glaze, the frit is more than 95%, plus kaolin, and it is obtained by ball milling; all-frit glaze, the frit is calcined at high temperature, and the production control is better than semi-raw glaze, but all materials All go to calcination, the cost is greatly increased
3. The soft glaze surface is obtained by soft polishing, which increases the polishing process and thus increases the polishing cost

Method used

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  • Manufacturing method of soft-light glazed ceramic chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of Soft Glazed Porcelain:

[0031] a. According to the weight percentage of frit raw materials: calcite: 12%, barium carbonate 15%, potassium feldspar 36%, zinc oxide 6%, kaolin 15%, calcium borate 4%, soda ash 2%, quartz sand 10% weighed raw material. After the raw materials are mixed, they are put into the frit furnace to be calcined and melted at 1540°C, and then flow out of the frit furnace and quenched into frit particles for later use.

[0032] The chemical composition of the frit is: SiO2 50.9%, Al 2 o 3 11.4%, MgO 0.35%, CaO 8.9%, Na 2 O is 1.5%, K 2 O is 4.5%, BaO is 13.45%, ZnO is 6.5%, B 2 o 3 2.2%, TiO 2 0.1%, Fe 2 o 3 0.2%.

[0033] b. Weigh 71% of frit, 15% of zirconium silicate, 5% of calcined kaolin, 8% of air-knife clay, 0.4% of methyl cellulose, and 0.6% of sodium tripolyphosphate according to the raw materials of soft glaze, and the water content is dry 39% of the weight of the material, ball milled for 8 to 12 hours to obtain a...

Embodiment 2

[0039] Preparation of Soft Glazed Porcelain:

[0040] a. According to the weight percentage of frit raw materials: calcite: 10%, barium carbonate 18%, potassium feldspar 36%, zinc oxide 5%, kaolin 15%, calcium borate 4%, soda ash 2%, quartz sand 10% weighed raw material. After the raw materials are mixed, they are put into the frit furnace to be calcined and melted at 1600°C, and then flow out of the frit furnace and quenched into frit particles for later use.

[0041] The chemical composition of the frit is: SiO 2 50.55%, Al 2 o 3 11.5%, MgO 0.35%, CaO 7.0%, Na 2 O is 1.5%, K 2 O is 4.5%, BaO is 16%, ZnO is 6.0%, B 2 o 3 2.3%, TiO 2 0.1%, Fe 2 o 3 0.2%.

[0042] b. Weigh 89.4% of frit, 2% of zirconium silicate, 4% of calcined kaolin, 4% of air-knife clay, 0.4% of methyl cellulose, and 0.2% of sodium tripolyphosphate according to the raw materials of soft glaze, and the water content is dry 39% of the weight of the material, ball milled for 8 to 12 hours to obtain ...

Embodiment 3

[0048] Preparation of Soft Glazed Porcelain:

[0049] a. According to the weight percentage of frit raw materials: calcite: 14%, barium carbonate 12%, potassium feldspar 40%, zinc oxide 7%, kaolin 12%, calcium borate 4%, soda ash 1%, quartz sand 10% weighed raw material. After the raw materials are mixed, they are put into the frit furnace to be calcined and melted at 1500°C, and then flow out of the frit furnace and quenched into frit particles for later use.

[0050] The chemical composition of the frit is: SiO 2 52.25%, Al 2 o 3 10%, MgO 0.35%, CaO 10.5%, Na 2 O is 1.0%, K 2 O is 5.0%, BaO is 10.5%, ZnO is 7.7%, B 2 o 3 2.3%, TiO 2 0.1%, Fe 2 o 3 0.3%.

[0051] b. Weigh 79.45% of frit, 12% of zirconium silicate, 8% of air-knife soil, 0.2% of methyl cellulose, and 0.35% of sodium tripolyphosphate according to the raw materials of soft glaze, and the water content is 39% of the weight of dry material , ball milled for 8 to 12 hours to obtain the glaze slurry, the ...

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Abstract

The invention provides a manufacturing method and a preparation method of a soft-light glazed ceramic chip, which comprises the following steps: spraying ground glaze on a biscuit, spraying soft-lightoverglaze, printing patterns, firing the ceramic, trimming the ceramic and finishing a finished product; by selecting the raw materials of the glaze, adjusting the frit content and selecting and optimizing the frit formula, the firing process is easy to control, the production cost is low, and the product quality is good. The frit accounts for 71-90% of the soft-light surface glaze, so that the possibility of dirt absorption caused by pinholes of the glaze is reduced, and the uniformity of the glaze is guaranteed. Zirconium silicate is stable in chemical performance and has the effects of whitening, improving opacification of the glaze, improving the bonding performance of the blank glaze and improving the hardness of the ceramic glaze in the glaze. The calcined kaolin acts in the glaze to increase the content of aluminum oxide, and the aluminum oxide can improve the stability and sintering strength of the glaze. The glossiness of the soft-light surface glaze is 15-35 degrees after the soft-light surface glaze is sintered, the glaze surface is smooth and moderate in brightness, and the requirements of consumers are met.

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 soft-glazed glazed tile. 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. 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°. Glossy ceramic products are currently the mainstream in the market, but soft glazed products are slowly becoming popular among consumers because of their smoothness and lack of brightness. Compared with polished tiles, soft glazed tiles can make the light irradiated on the surface produce a scattering effect, reduce the reflectivity...

Claims

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Application Information

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IPC IPC(8): C04B41/89C03C8/20C03C8/04C03C6/04C03B5/16
CPCC04B41/89C04B41/52C03C8/20C03C8/04C03C1/00C03B5/16C03C2204/04C03C2205/02C04B41/504C04B41/0072C04B41/5022C04B41/4539C04B41/4543C04B41/50
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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