Exquisite glaze, exquisite ceramic and preparation process of exquisite ceramic

A technology of Linglong glaze and Linglong, which is applied in the field of Linglong ceramics and its preparation technology, can solve the problems that flat or large-scale products cannot be produced, Linglong eyes have poor transparency and permeability, and Linglong eyes cannot be repaired or leaked, so as to broaden the firing range. The effect of increasing the range of forming, improving the regularity and consistency, and increasing the qualified rate of firing

Active Publication Date: 2013-07-31
SHENZHEN YONG FENG YUAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But so far, traditional Linglong ceramics are still produced by one-time high-temperature firing, and the surface quality of the product is poor; The transparency and permeability of Linglong Eye are poor; because the product is hollowed out before sintering, the stress structure of the product changes, and the product is prone to deformation when fired at high temperature; the products produced have large limitations (mostly small, three-dimensional products), flat or large-scale products cannot be produced at all, etc.

Method used

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  • Exquisite glaze, exquisite ceramic and preparation process of exquisite ceramic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Linglong eye glaze can be prepared as follows: quartz powder (325 mesh) 24-45%, nepheline powder (325 mesh): 20-40%, kaolin (325 mesh) 0-18%, borax 2-16%, Zinc oxide 2-7%, zirconium silicate 0-4%, diyttrium trioxide 0.1-3%, calcium carbonate 6-16%, magnesium carbonate 0-8%, phosphorus pentoxide 0-2%, strontium carbonate 0.5% ~6%, Lithium Carbonate 2~10%, Rubidium Oxide 1~2.5%, Hafnium Dioxide 1~2%, the above raw materials are mixed evenly, melted at 1520°C, put into cold water and quenched into frit.

[0030] Put the frit into a ball mill, add water, high alumina ball stone and kaolin 5% to grind it into a glaze slurry, the fineness is controlled at less than 0.03% on a million-hole sieve, and then dried at 80-100°C to make a powder and pass through 250 mesh Sieve, mix and stir the prepared dry powder according to the glaze moisture content of 10-15%, and then use it.

[0031] Table 1 is the chemical composition of the raw materials used in Example 1

[0032]

Embodiment 2

[0033] Implementation 2 Preparation of high-temperature glaze-fired Linglong ceramics

[0034] Taking the production of 350ml crystal exquisite cup as an example

[0035] Take the refined mud with a moisture content of 22-25%, roll and form it as required, and then dry it naturally with a mold. After the product can be taken out of the mold, the cup handle is bonded. The cup is naturally dried for 2-4 hours, and then the product is dried with hot air at 80-90°C. After the product is completely dried, the blank is repaired and then sent to the kiln for low-temperature bisque firing at 600-1050°C for subsequent glazing. After the biscuit firing is completed, apply glaze on the 350ml cup and perform high-temperature glaze firing at 1200-1400°C. The products after glaze firing are inspected. The qualified products are sent to the next process to punch 5mm round exquisite holes according to the design pattern. Inspection is carried out, and qualified products are poured with Lingl...

Embodiment 3

[0036] Embodiment 3 Preparation of low-temperature glaze-fired Linglong ceramics

[0037] Taking the production of 350mm crystal exquisite fish dish as an example

[0038] Take the refined mud with a moisture content of 22-25%, carry out plastic molding according to the requirements, demold and dry naturally for 4-8 hours, and then dry the product with hot air at 80-90°C. When the product is completely dried, carry out Repair and wash the blank, and then send it to the kiln for high-temperature biscuit firing at 1200-1400°C for subsequent punching work, and conduct biscuit inspection. The 350mm fish plate biscuit that passes the inspection is sent to the next process to punch 5mm round exquisite holes according to the design pattern. Inspection will be carried out after the hole is completed. The qualified products will be poured with Linglong glaze, and the products filled with Linglong glaze will be fired. Apply the upper glaze, and then perform glaze firing. The glaze firi...

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Abstract

The invention discloses exquisite glaze, exquisite ceramic and a preparation process of exquisite ceramic. The exquisite glaze comprises the following components: 44-63 percent of SiO2, 7-12 percent of Al2O3, 5-12 percent of CaO, 0.5-2 percent of SrO, 3-8 percent of ZnO3, 1-6.5 percent of K2O, 1-5 percent of Na2O, 0.5-4 percent of Li2O, 1-5 percent of B2O3, 0-3 percent of MgO, 0-1 percent of P2O5, 0-4 percent of ZrO2, 0.2-4 percent of Y2O3, 0.2-2 percent of Rb2O and 0.1-2 percent of HfO2, wherein the sum of the components is 100 percent. In the invention, the formulation of the exquisite glaze is optimized, and rare earth compound is introduced to substitute the glaze in the exquisite glaze for traditional exquisite ceramic, thereby ensuring reasonable chemical composition and good stability, improving the transparency and high-temperature viscosity of the exquisite glaze and widening the sintering range of the exquisite glaze.

Description

technical field [0001] The invention belongs to the technical field of ceramic product manufacturing, and in particular relates to a Linglong glaze, a Linglong glaze obtained by firing the Linglong glaze, and Linglong ceramics containing the Linglong glaze and a preparation process thereof. Background technique [0002] Blue and white Linglong porcelain is a traditional variety of Jingdezhen with obvious local characteristics and well-known at home and abroad. Linglong eyes are mostly in the shape of rice grains, but also in the shape of water spots, waves, orchid petals, peaches, and rhombuses. "Mihua" is called "Mitong" and "Firefly Hand" in Japan. Westerners call Linglong porcelain "glass-embedded porcelain". Blue and white exquisite porcelain was produced in the Song Dynasty. During the Song Dynasty, Jingdezhen made a hollow porcelain "incense burner". It is said that once the kiln temperature was too high and the enamel flowed, the holes that should have been vented in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/86C04B35/622
Inventor 刘权辉曾学富刘权耀
Owner SHENZHEN YONG FENG YUAN IND
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