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Low-temperature stoneware formula

A stoneware, low-temperature technology, applied in the field of low-temperature stoneware formulations, can solve the problems of increasing the expansion coefficient of the green body, high energy consumption, and low firing pass rate, and achieve the effect of increasing the firing pass rate

Active Publication Date: 2014-07-02
漳州汇宜陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The firing temperature of traditional stoneware is 1250-1280°C, its disadvantages are high energy consumption and low firing pass rate
[0003] Chinese patent CN101066862 discloses a low-temperature high-silicon stoneware and its manufacturing process. This process aims at the problem that the expansion coefficient of traditional high-silicon stoneware does not match some special art glazes. Introduce a large amount of quartz with different particle levels to increase the expansion coefficient of the green body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The formula of the low-temperature stoneware includes grouting mud and raw glaze;

[0018] The raw materials of the grouting mud are composed of 18.5% potassium feldspar, 26.5% lithium china stone, 15% quartz powder, 15% kaolin, 15% black clay, 5% pyrophyllite powder, and 5% porcelain powder according to the mass percentage of the grouting mud;

[0019] The raw material glaze can be a transparent glaze; the raw material of the transparent glaze consists of 13% potassium feldspar, 32% lithium china stone, 21% quartz powder, 3% strontium carbonate, 5% barium carbonate, calcined Talc 3%, light calcium carbonate 14%, kaolin 5%, porcelain powder 4%;

[0020] In the grouting mud, the potassium feldspar can be powdered with a quality standard of 200 mesh, K 2 O+Na 2 O≥12%, Na 2 O≤3%; the lithium china stone can be powdered with a quality standard of 100 mesh, Li 2 O≤2%, K 2 O+Na 2 O≥5%, for example: 801 lithium china stone produced in Jiangxi; the quartz powder can be 32...

Embodiment 2

[0025] Similar to Example 1, the raw material glaze adopts matte glaze, and the raw material composition of the matte glaze according to mass percentage is: potassium feldspar 23%, lithium china stone 13%, quartz powder 9%, strontium carbonate 3% , 5% alumina, 3% calcined talc, 12% light calcium carbonate, 8% kaolin, 4% calcined zinc oxide, 20% barium carbonate.

[0026] In the matte glaze, the potassium feldspar can be powdered with a quality standard of 200 mesh, K 2 O+Na 2 O≥12%, Na 2 O≤3%, for example: potassium feldspar produced in Taining; 2 O≤2%, K 2 O+Na 2 O≥5%, for example: 801 lithium china stone produced in Jiangxi; the quartz powder can be 325 mesh powder with quality standard, Si 2 O≥95%, for example: quartz powder produced in Xianyou, Fujian Province; the strontium carbonate can be in the form of 200-mesh powder with a content of 99%; the alumina can be in the form of a 200-mesh powder with a content of 99% The calcined talc can be calcined at 1250°C with a...

Embodiment 3

[0028] Similar to Example 1, the difference is that the raw material composition of the grouting mud is: potassium feldspar 19.5%, lithium china stone 25.5%; the raw material composition of the transparent glaze by mass percentage is: potassium feldspar 15% %, lithium china stone 30%;

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Abstract

The invention relates provides a low-temperature stoneware formula, relating to stoneware. The low-temperature stoneware formula provided by the invention has the advantages that the firing temperature and energy consumption can be obviously reduced and the firing pass rate can be increased. The low-temperature stoneware formula comprises grouting mud and raw glaze, wherein the grouting mud is prepared from potash feldspar, lithium porcelain stone, quartz powder, kaolin, black clay, pyrophyllite powder and ceramic powder; the raw glaze is transparent glaze or matte glaze; the transparent glaze is prepared from potash feldspar, lithium porcelain stone, quartz powder, strontium carbonate, barium carbonate, calcined talc, light calcium carbonate, kaolin and ceramic powder; and the matte glaze is prepared from potash feldspar, lithium porcelain stone, quartz powder, strontium carbonate, alumina, calcined talc, light calcium carbonate, kaolin, calcined zinc oxide and barium carbonate.

Description

technical field [0001] The invention relates to stoneware, in particular to a low-temperature stoneware formula. Background technique [0002] The firing temperature of traditional stoneware is 1250-1280°C, which has the disadvantages of high energy consumption and low firing pass rate. [0003] Chinese patent CN101066862 discloses a low-temperature high-silicon stoneware and its manufacturing process. This process aims at the problem that the expansion coefficient of traditional high-silicon stoneware does not match some special art glazes. A large amount of quartz with different grain levels is introduced to increase the expansion coefficient of the green body. On the basis of the composition of the original stoneware, quartz with different particle grades is added, the main mineral composition is feldspar, kaolin, quartz and dolomite, and the proportion of each composition is as follows: albite 15% to 35%; kaolin 25% %~40%; Quartz 35%~50%; Dolomite 1%~5%. The ordinary ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13
Inventor 蒲贻昆
Owner 漳州汇宜陶瓷有限公司
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