Microcrystal green glaze based on yijun sand and preparing method of microcrystal green glaze

A technology of microcrystalline and celadon glazes, applied in the field of ceramic glazes, can solve the problems of low maturation temperature, high cost of raw materials, poor hardness and wear resistance of microcrystalline glazes, and achieve high mechanical strength, low price, and wear resistance good sex effect

Inactive Publication Date: 2017-03-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this preparation method introduces burnt talc, calcite, and a large amount of titanium oxide, zirconium oxide, etc. into the formula raw materials. Generally poor in terms of abrasiveness

Method used

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  • Microcrystal green glaze based on yijun sand and preparing method of microcrystal green glaze
  • Microcrystal green glaze based on yijun sand and preparing method of microcrystal green glaze
  • Microcrystal green glaze based on yijun sand and preparing method of microcrystal green glaze

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preparation example Construction

[0024] The preparation steps of the present invention comprise:

[0025] 1) Mix 20-80% of Yijun sand, 20-30% raw loess, 0-25% cooked loess, and 0-30% feldspar powder according to mass percentage to obtain a mixture, and then add the mass of the mixture to the mixture 2-4% calcium phosphate, 0.3-0.5% sodium tripolyphosphate and 1-2% CMC are mixed evenly, finely ground to 250 mesh with a fine grinder to obtain a secondary mixture, and the specific gravity of the glaze slurry is adjusted by the secondary mixture 1.6-1.7g / cm 3 ;

[0026] 2) Apply the glaze slurry obtained above evenly on the green body, and then put the green body into a high-temperature furnace and use a reducing atmosphere for glaze firing. The glaze firing temperature is 1150-1250°C, keep it warm for 20-50 minutes, take it out, and cool it naturally That is, the microcrystalline green glaze is obtained.

[0027] Preparation of cooked loess: Grind the raw loess evenly in a mortar, put it into a crucible and p...

Embodiment 1

[0029] 1) By mass percentage, 80% Yijun sand and 20% raw loess are mixed uniformly to obtain a mixture, then in the mixture, add calcium phosphate of mixture quality 4%, 0.4% sodium tripolyphosphate as suspending agent and 1% as suspending agent The CMC of the dispersant is mixed evenly and finely ground to 250 mesh to obtain a secondary mixture;

[0030] 2) Use the secondary mixture to prepare the glaze slurry with a specific gravity of 1.7g / cm 3 ;

[0031] 3) Apply the above-mentioned glaze slurry evenly on the green body, and then place the green body in a high-temperature furnace for glaze firing in a reducing atmosphere at a temperature of 1250°C, keep it warm for 50 minutes and cool naturally to obtain a microcrystalline green glaze.

Embodiment 2

[0033] 1) Mix 70% Yijun sand and 30% raw loess uniformly by mass percentage to obtain a mixture, then add 3% calcium phosphate, 0.4% sodium tripolyphosphate and 2% CMC to the mixture and mix uniformly , finely ground to 250 mesh to obtain a secondary mixture;

[0034] 2) Use the secondary mixture to prepare the glaze slurry with a specific gravity of 1.7g / cm 3 ;

[0035] 3) Apply the glaze slurry obtained above evenly on the green body, and then place the green body in a high-temperature furnace for glaze firing in a reducing atmosphere at a temperature of 1230°C, keep it warm for 40 minutes and cool naturally to obtain a microcrystalline green glaze.

[0036] Depend on image 3 It can be seen from the photo that the present invention prepares microcrystalline green glaze.

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Abstract

The invention provides a microcrystal green glaze based on yijun sand and a preparing method of the microcrystal green glaze. The preparing method comprises the steps of uniformly grinding a raw loess coarse material in a mortar, afterwards loading the grinded raw loess coarse material into a crucible, conducting roasting of the grinded raw loess coarse material into a high-temperature furnace till the temperature reaches 600 DEG C, conducting heat insulation for 60 minutes and then conducting natural cooling, conducting ball milling after cooling, and passing through a 80mesh sieve to obtain exquisite ripe loess; mixing the yijun sand, the raw loess, the ripe loess, feldspar, calcium phosphate, sodium tripolyphosphate, and CMC, grinding the materials and passing through a 250mesh sieve, adjusting glaze slip specific gravity to be 1.7g / cm<3>; uniformly applying the glaze slip on a blank, reducing atmosphere and raising the temperature to 1150-1250 DEG C, conducting heat insulation for 20-50 minutes and then conducting natural cooling. The prepared microcrystal green glaze presents a mild, humid and green jade luster, and a microstructure of the microcrystal green glaze presents a large amount of microcrystal grains. According to the microcrystal green glaze based on yijun sand and the preparing method of the microcrystal green glaze, wasted tailings are subjected to re-utilization resource, and thus emission of solid waste is reduced, use amount of high-level ceramic raw materials raw ore is lowered, and mineral sources are saved. The obtained ceramic products can achieve effects of low cost, high rigidity, and good abrasion resistance.

Description

technical field [0001] The invention belongs to the technical field of ceramic glazes, and in particular relates to a microcrystalline celadon glaze based on Yijun sand and a preparation method thereof. Background technique [0002] Celadon is the earliest color-glazed porcelain that appeared in the history of our country, especially the celadon of the Song Dynasty is famous for its fine porcelain, dignified and simple shape, and pure color, and has high ornamental value. Traditional celadon is based on a small amount of Fe 2 o 3 The raw material acts as a colorant and is fired under a reducing atmosphere. Usually, the color of iron oxide is the compound color of its divalent and trivalent ions, which is very sensitive to the basic composition and atmosphere of the glaze. [0003] The general microcrystalline glaze mainly introduces chemical raw materials such as titanium oxide and zirconium oxide as the main crystallization agent. By increasing the content of flux, the g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/14C04B41/86
CPCC03C8/14C04B41/5022C04B41/86
Inventor 王毅施佩张兆松王伟伟贺鹏杨晓燕
Owner SHAANXI UNIV OF SCI & TECH
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