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Method for firing underglazed color crack ceramic at high temperature

A technology of high-temperature ceramics and high-temperature firing, which is applied in the field of high-temperature firing high-temperature ceramics with color cracks under the glaze, which can solve the problems of poor shock resistance and thermal stability, brokenness, and no practicality, and achieve good shock resistance and thermal stability. Effect

Active Publication Date: 2013-09-04
GUANGDONG JIYU PORCELAIN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of ceramics is not suitable for daily-use ceramic products, because the glaze on the surface has been cracked, and the shock resistance and thermal stability are very poor. A slight collision may cause it to break, and generally it can only be used as a decoration. Without practicality, it cannot be widely used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Make the ceramic mud body, put the ceramic mud body into the kiln for biscuit drying, the bisque firing temperature is 700°C, the time is 4 hours, and it is ready for use.

[0024] (2) To make high-temperature feldspar transparent glaze slurry, weigh the following raw materials by weight percentage: 48% feldspar, 22% quartz, 10% cooked talc, 3% clay, 12% porcelain powder, 1% zinc oxide, silicic acid Zirconium 1%, kaolin 3%, put various raw materials weighed into the ball mill, ball mill for 48 hours, the fineness of the glaze slurry is 250 mesh sieve, add 1% ammonium chloride and stir to make 43°Be' high temperature feldspar Transparent glaze.

[0025] (3) Dip the dried ceramic mud body into the high-temperature feldspar transparent glaze slurry for 3 seconds, so that the thickness of the glaze layer on the ceramic surface reaches about 3 mm, take it out and dry it for later use;

[0026] (4) Put the glaze-dried ceramic clay body into a kiln and then fire it. The f...

Embodiment 2

[0032] (1) Make the ceramic mud body, put the ceramic mud body into the kiln for biscuit drying, the bisque firing temperature is 750°C, and the time is 5 hours, and set aside.

[0033] (2) To make high-temperature feldspar transparent glaze slurry, weigh the following raw materials by weight percentage: 52% feldspar, 23% quartz, 8% cooked talc, 3% clay, 9% porcelain powder, 1% zinc oxide, silicic acid Zirconium 1%, kaolin 3%, put various raw materials weighed into the ball mill, ball mill for 60 hours, the fineness of the glaze slurry is 250 mesh sieve, add 1.5% ammonium chloride and stir to make 45°Be' high temperature feldspar Transparent glaze.

[0034] (3) Dip the dried ceramic mud body into the high-temperature feldspar transparent glaze slurry for 5 seconds, so that the thickness of the glaze layer on the ceramic surface reaches 5mm, so as to achieve a good crack effect, take it out and dry it for later use;

[0035] (4) Put the glaze-dried ceramic clay body into a kil...

Embodiment 3

[0041] (1) Make the ceramic mud body, put the ceramic mud body into the kiln for biscuit drying, the biscuit temperature is 800°C, the time is 7 hours, and it is ready for use.

[0042] (2) To make high-temperature feldspar transparent glaze slurry, weigh the following raw materials by weight percentage: 45% feldspar, 30% quartz, 8% cooked talc, 4% clay, 8% porcelain powder, 1% zinc oxide, silicic acid Zirconium 1%, kaolin 3%, put various raw materials weighed into the ball mill, ball mill for 72 hours, the fineness of the glaze slurry is 250 mesh sieve, add 1~2% ammonium chloride and stir to adjust the high temperature of 47°Be' Feldspar transparent glaze slurry.

[0043] (3) Dip the dried ceramic mud body into the high-temperature feldspar transparent glaze slurry for 8 seconds, so that the thickness of the glaze layer on the ceramic surface reaches 8mm, so as to achieve a good crack effect, take it out and dry it for later use;

[0044] (4) Put the glaze-dried ceramic clay...

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Abstract

The invention discloses a method for firing an underglazed color crack ceramic at a high temperature, and belongs to the technical field of ceramic manufacturing methods. The method is technically characterized by comprising the steps as follows: (1), a ceramic clay body is manufactured and dried for spare; (2), the dried ceramic clay body is immersed in high-temperature transparent feldspar glaze paste for 3-8 seconds, and taken out and dried for spare; (3), the glaze-immersed and dried ceramic clay body is placed in a kiln for low temperature firing; (4), a ceramic semi-finished product is taken out and subjected to still standing for 1-3 days at a normal temperature, and cracks are formed in an glaze layer of the surface of the ceramic semi-finished product; (5), the ceramic semi-finished product with the cracks is immersed in colored glaze slurry, the immersion time is 3-8 seconds, and the ceramic semi-finished product is taken out and dried for spare; and (6), the secondarily glaze-immersed and dried ceramic semi-finished product is placed in the kiln for high-temperature firing. The method aims to manufacture the underglazed color crack ceramic with the cracks and good seismic resistance and thermal stability, and is used for manufacturing ceramics.

Description

technical field [0001] The invention relates to a method for making ceramic daily necessities, in particular to a method for firing underglaze color cracked high-temperature ceramics at high temperature. Background technique [0002] The existing ceramic crack glaze product has crack marks on the glaze surface. It is made by cracking the glaze on the ceramic surface during firing, and then artificially applying ink or machine oil to penetrate into the cracks to dye the cracks. This type of ceramics is not suitable for daily-use ceramic products, because the glaze on the surface has been cracked, and the shock resistance and thermal stability are very poor. A slight collision may cause it to break, and generally it can only be used as a decoration. Without practicality, it cannot be widely used. Contents of the invention [0003] The object of the present invention is to provide a method for high-temperature firing underglaze color cracked high-temperature ceramics that h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86
Inventor 钟优宴钟小斌邓英豪邓诗敬范向隆钟镇昌
Owner GUANGDONG JIYU PORCELAIN CORP
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