High-temperature black body porcelain and its preparation method by oxidizing flame firing

A technology of oxidizing flame and high temperature, which is applied in the field of high-temperature black body porcelain and its oxidizing flame firing preparation, can solve problems such as damage to the green body, unsuitable expansion coefficient, cracking of the glaze surface, etc., and achieve high firing rate and excellent color. Pure, stable product performance

Active Publication Date: 2020-07-17
醴陵市科镭陶瓷釉料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, the black-bodied celadon is not compatible with the expansion coefficient of the body and the glaze, which leads to cracking (opening) of the glaze surface and damage to the green body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a high-temperature black-bodied porcelain, which is prepared from a blank and a glaze; wherein,

[0037] The raw materials for making the blank include: porcelain washing clay with a weight percentage of 18-20%, plaster with a weight percentage of 12-15%, white mud with a weight percentage of 36-44%, and 18-25% by weight of Red purple sand shale, quartz with a weight percentage of 16-20% and moraine rock with a weight percentage of 5-8%;

[0038] The raw materials for making the glaze include: 20-25% by weight potassium feldspar, 15-22% by weight albite, 25-30% by weight quartz, 10-15% by weight limestone, 5-13% by weight of zinc, 5-12% by weight of barium carbonate, 3-8% by weight of talc, 5-8% by weight of kaolin and 3-6% by weight % titanium.

[0039] In this embodiment, the ceramic product made from the above-mentioned raw materials not only has pure color, beautiful appearance, and strong surface artistic effect, but also has a high firin...

Embodiment 2

[0045] On the basis of Example 1, this example provides another high-temperature black body porcelain, which is prepared from a blank and a glaze; wherein,

[0046] The raw materials for making the blank include: porcelain washing clay with a weight percentage of 18-20%, plaster with a weight percentage of 12-15%, white mud with a weight percentage of 36-44%, and 18-25% by weight of Red purple sand shale, quartz with a weight percentage of 16-20% and moraine rock with a weight percentage of 5-8%;

[0047] The raw materials for making the glaze include: 10-18% by weight potassium feldspar, 10-15% by weight albite, 18-23% by weight quartz, 10-15% by weight Limestone, 10-20% by weight of barium carbonate, 3-6% by weight of bovine bone meal, 5-8% by weight of kaolin and 3-9% by weight of alumina powder.

[0048] In this embodiment, the ceramic product made from the above-mentioned raw materials not only has pure color, beautiful appearance, and strong surface artistic effect, but...

Embodiment 3

[0054] On the basis of Examples 1 and 2, this example further provides a method for preparing high-temperature black body porcelain by oxidizing flame firing, which includes the following production steps:

[0055] Step 1: Take porcelain washing clay with a weight percentage of 18-20%, plaster with a weight percentage of 12-15%, white mud with a weight percentage of 36-44%, and red purple sand shale with a weight percentage of 18-25% , Quartz with a weight percentage of 16-20% and moraine rock with a weight percentage of 5-8% for batching;

[0056] Step 2, ball milling the ingredients in step 1, wherein the ratio of ingredients, balls, and water is 1:2:1.2, ball milling until the sieve residue of the 250 mesh sieve of the ingredients granularity is 0.06%, and then Press filtration to form a mud cake with a water content of 21 to 27%. In this embodiment, as a preferred embodiment, sodium polyacrylate with a concentration of 0.06% is added during the ball milling process, and th...

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Abstract

The invention discloses high-temperature black-body porcelain, prepared with a preform body and glaze. The preform body is made from, by weight, 18-20% of washed clay, 12-15% of lime mud, 36-44% of white clay, 18-25% of red purple-sand shale, 16-20% of quartz, and 5-8% of tillite. The glaze is made from, by weight, 20-25% of potassium feldspar, 15-22% of soda feldspar, 25-30% of quartz, 10-15% oflimestone, 5-13% of zinc, 5-12% of barium carbonate, 3-8% of talcum, 5-8% of kaolin, and 3-6% of titanium. The finished porcelain has authentic color, good attractiveness and good surface artistic effect; product firing rate is high, product performance is stable, and glaze surface is free of cracking.

Description

technical field [0001] The invention relates to the technical field of ceramic preparation, in particular to a high-temperature black-bodied porcelain and an oxidation flame firing preparation method thereof. Background technique [0002] The black-bodied celadon is caused by the high iron content in the clay body (introducing purple gold soil, black mud, and purple sand raw ore). The amount of iron causes the color of the body to vary from gray to dark black; From rich to deep, there are patterns on the glaze surface, all kinds of textures are available; there are also the characteristics of purple mouth and iron feet. [0003] However, in the prior art, the black-bodied celadon is not adapted to the expansion coefficient of the green body and the glaze, resulting in cracking (opening) of the glaze surface and damage to the green body. [0004] Therefore, there is now provided a high-quality high-temperature black-bodied porcelain without glaze cracking and green body dama...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/04C04B33/13C04B41/86
CPCC04B33/04C04B33/13C04B41/009C04B41/5022C04B41/86C04B2235/3418C04B2235/5436C04B2235/606C04B2235/656C04B2235/6567C04B2235/6583C04B41/4535
Inventor 曾春
Owner 醴陵市科镭陶瓷釉料有限公司
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