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Slip casting preparation method for high-whiteness earthenware

A technology of grouting molding and high whiteness, applied in the field of ceramics, can solve the problems affecting the beauty of products, poor whiteness, etc., so as to reduce the adverse effects of color development and improve the whiteness.

Inactive Publication Date: 2015-07-22
江苏省宜兴彩陶工艺厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the texture of daily-use pottery is generally poor in whiteness, which seriously affects the aesthetics of the product. This is caused by the natural raw materials directly used by ceramic companies without strict processing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method for grouting molding high whiteness pottery, comprising the following steps:

[0021] The billets are selected and washed first, and the billets are proportioned according to the mass: 38 parts of Suzhou soil, 33 parts of porcelain stone, 26 parts of feldspar, and 3 parts of talc;

[0022] Put the blank into the ball mill for 24 hours of ball milling, pass through a 100-mesh sieve and absorb iron, press the mud through the filter, and stir the slurry in the slurry tank to obtain a high-whiteness pottery blank;

[0023] The high-whiteness pottery blanks are grouted and molded to obtain blanks. After the blanks are dried, they are fired with an oxidation flame in a roller kiln. The temperature of biscuit firing is 1180-1189°C. The firing temperature is 1050-1100°C. After firing out of the kiln, it is a qualified product after inspection.

Embodiment 2

[0025] A preparation method for grouting molding high whiteness pottery, comprising the following steps:

[0026] The billets are selected and washed first, and the billets are proportioned according to the mass: 40 parts of Suzhou soil, 27 parts of porcelain stone, 28 parts of feldspar, and 5 parts of talc;

[0027] Put the blank into the ball mill for 24 hours of ball milling, pass through a 100-mesh sieve and absorb iron, press the mud through the filter, and stir the slurry in the slurry tank to obtain a high-whiteness pottery blank;

[0028] High-whiteness pottery blanks are grouted and molded to obtain blanks. After the blanks are dried, they are fired with an oxidation flame in a roller kiln. First, the temperature of bisque firing is 1180-1189°C. The firing temperature is 1050-1100°C. After firing out of the kiln, it is a qualified product after inspection.

Embodiment 3

[0030] A preparation method for grouting molding high whiteness pottery, comprising the following steps:

[0031] The billets are washed with selected water first, and the billets are proportioned according to the mass: 42 parts of Suzhou soil, 247 parts of porcelain stone, 30 parts of feldspar, and 4 parts of talc;

[0032] Put the blank into the ball mill for 24 hours of ball milling, pass through a 100-mesh sieve and absorb iron, then press the filter to squeeze the mud, and stir the slurry in the slurry tank to obtain a high-whiteness pottery blank;

[0033] High-whiteness pottery blanks are grouted and molded to obtain blanks. After the blanks are dried, they are fired with an oxidation flame in a roller kiln. First, the temperature of bisque firing is 1180-1189°C. The firing temperature is 1050-1100°C. After firing out of the kiln, it is a qualified product after inspection.

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PUM

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Abstract

The invention relates to the field of ceramics, in particular to a slip casting preparation method for high-whiteness earthenware. The method comprises the following steps: selecting mineral raw minerals, namely selecting the following ceramic mineral sources with high purity in parts: 38 to 42 parts of Suzhou kaolin clay, 26 to 30 parts of Pingjiang feldspar, 24 to 33 parts of Jiangxi porcelain stone and 3 to 5 parts of Haicheng talc, performing washing and preparation, treating mud after ball milling by virtue of an additional pressure filtration procedure, performing slip casting to obtain a blank and firing the blank. According to the method, a process flow of sequentially performing high-temperature biscuit firing and low-temperature glaze firing is adopted, the apparent quality of a burnt matrix is similar to that of ceramic whiteware, the section is substantially sintered to be compacted, the whiteness reaches 70 percent, and the water absorption is lower than 0.5 percent; the product has practical value, and is as white and pleasant as cream.

Description

technical field [0001] The invention relates to the field of ceramics, in particular to a method for preparing pottery with high whiteness through grouting. Background technique [0002] At present, the texture of daily-use pottery is generally poor in whiteness, which seriously affects the aesthetics of the product. This is caused by the natural raw materials that are directly used by ceramic companies without strict processing. Therefore, for judging the quality of daily-use ceramics, the whiteness of appearance is an important indicator, and it is imperative to innovate the processing technology of pottery blanks. Contents of the invention [0003] In order to solve the above problems, the present invention provides a method for preparing pottery products with high whiteness. [0004] A preparation method for grouting molding high whiteness pottery, comprising the following steps: [0005] The billets are selected and washed first, and the billets are proportioned acc...

Claims

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Application Information

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IPC IPC(8): C04B33/22C04B33/24
Inventor 徐伟雄
Owner 江苏省宜兴彩陶工艺厂
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