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Jun porcelain biscuit cracking repairing glaze firing technology

A biscuit and glaze firing technology, which is applied in the field of Jun porcelain biscuit crack repair and glaze firing, can solve the problems of biscuit cracking and increased production costs, and achieve the effect of ensuring the yield

Inactive Publication Date: 2022-06-28
XUCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the biscuit firing process, the green body often cracks after firing, and the cracked green body can only be treated as waste parts, which increases the production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A glaze firing technology for repairing cracking of Jun porcelain china, comprising the following steps:

[0043] Step 1: prepare a repairing material, the repairing material includes high temperature resistant cotton powder, original billet and white vinegar;

[0044] a. The repaired traces should be significantly higher than the surface of the original porcelain, so as to avoid improper filling and shrinkage after firing;

[0045] Step 2: drying;

[0046] Step 3: Bi-firing and trimming the green body again;

[0047] a. Firing the repaired china to 900 degrees to ensure that the high-temperature cotton and blank powder that have been repaired and filled are turned into porcelain;

[0048] b. Then take out the two re-fired china, and listen to the sound by flicking your fingers to determine whether the china is completely fired. Use medium sandpaper and fine sandpaper to polish the surface of the over-repaired porcelain until it is seamless to the original plane. ; ...

Embodiment 2

[0057] A glaze firing technology for repairing cracking of Jun porcelain china, specifically comprising the following steps:

[0058] Step 1: prepare a repairing material, the repairing material includes high temperature resistant cotton powder, original billet and white vinegar;

[0059]a. The repaired traces should be significantly higher than the surface of the original porcelain, so as to avoid improper filling and shrinkage after firing;

[0060] Step 2: drying;

[0061] Step 3: Bi-firing and trimming the green body again;

[0062] a. Firing the repaired china to 900 degrees to ensure that the high-temperature cotton and blank powder that have been repaired and filled are turned into porcelain;

[0063] b. Then take out the two re-fired china, and listen to the sound by flicking your fingers to determine whether the china is completely fired. Use medium sandpaper and fine sandpaper to polish the surface of the over-repaired porcelain until it is seamless to the original...

Embodiment 3

[0072] A glaze firing technology for repairing cracking of Jun porcelain china, specifically comprising the following steps:

[0073] Step 1: prepare a repairing material, the repairing material includes high temperature resistant cotton powder, original billet and white vinegar;

[0074] a. The repaired traces should be significantly higher than the surface of the original porcelain, so as to avoid improper filling and shrinkage after firing;

[0075] Step 2: drying;

[0076] Step 3: Bi-firing and trimming the green body again;

[0077] a. Firing the repaired china to 900 degrees to ensure that the high-temperature cotton and blank powder that have been repaired and filled are turned into porcelain;

[0078] b. Then take out the two re-fired china, and listen to the sound by flicking your fingers to determine whether the china is completely fired. Use medium sandpaper and fine sandpaper to polish the surface of the over-repaired porcelain until it is seamless to the origina...

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PUM

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Abstract

The invention relates to the technical field of jun porcelain production, in particular to a glaze firing technology for repairing cracking of a jun porcelain biscuit. A Jun porcelain biscuit cracking repairing glaze firing technology specifically comprises the following steps that firstly, repairing supplementary materials are prepared, and raw materials of the repairing supplementary materials comprise high-temperature-resistant cotton powder, raw blank powder and white vinegar; the method comprises the following steps: a, repairing traces are obviously higher than the surface of the original porcelain, so that the repairing traces are prevented from being compressed uncompactly and shrunk after firing; step 2, drying; 3, biscuiting the green body again and finishing; 4, the Jun glaze proportion is adjusted, and the firing temperature rise curve is reduced; 5, anti-cracking glazing is carried out; and step 6, glaze firing, wherein the glaze firing temperature is 1200 DEG C. Compared with the prior art, the high-temperature-resistant cotton powder, the raw blank powder and the white vinegar are blended, and after the raw blank powder and the white vinegar with the same shrinkage rate are blended, no water absorption is achieved, and it is guaranteed that secondary cracking cannot occur when a biscuit is fired again.

Description

technical field [0001] The invention relates to the technical field of Jun porcelain production, in particular to a glaze firing technology for repairing cracking of Jun porcelain china. Background technique [0002] Jun porcelain, a special product of Yuzhou City, Henan Province, is a product of China's national geographical indication; Jun porcelain began in the Tang Dynasty and flourished in the Song Dynasty. It is one of the five famous porcelains in ancient China, and the kiln produced by its unique glaze and firing method has become magical and amazing. famous all over the world. As an important symbol in the history of Chinese ceramic art, Jun porcelain occupies an important position in the history of the development of world ceramics. Art is widely loved by ceramic lovers with its artistic characteristics of "one color in the kiln, and a variety of colors out of the kiln". [0003] The hook porcelain is fired twice, the first is low-temperature biscuit firing, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86C04B41/87C03C8/14
CPCC04B41/5022C04B41/86C04B41/009C03C8/14C04B41/5025C04B41/87C04B33/04C04B35/00C04B41/46C04B41/4572
Inventor 郭君健上官弘文刘小磊刘志钧常爽晋文龙
Owner XUCHANG UNIV
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