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Preparation method of emerald ceramic

A technology of emerald porcelain and formula, which is applied to clay products, other household utensils, household utensils, etc., can solve the problems of reduced strength, high cost, and greater influence on the permeability of porcelain body, and achieve low production cost, low cost, Good effect of porcelain permeability

Inactive Publication Date: 2010-12-15
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above, it can be known that increasing the glass phase of the ceramic body is currently used to improve the light transmission performance of the body, but the increase in the content of the glass phase leads to a decrease in strength; in terms of color tone, the method of adding pigments to the body is basically used, and the mass ratio of the body glaze Generally, it is about 12:1. From an economic point of view, the cost of this method is relatively high, and the high-temperature pigment has a great influence on the permeability of the porcelain body.

Method used

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  • Preparation method of emerald ceramic
  • Preparation method of emerald ceramic
  • Preparation method of emerald ceramic

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The raw material composition of the green body is as follows: 10% of Longyan ball clay (high plasticity clay), 5% of Hunan silica (low plasticity clay), 50% of Guangxi kaolin ore, 10% of calcite, and 25% of quartz. The composition of the enamel slurry is as follows: 24% potassium feldspar, 27% quartz, 15% calcite, 2% calcined talc, 30% Longyan washing mud, 2% zinc oxide, and 0.1% praseodymium oxide.

[0036] According to the above porcelain blank formula, according to figure 1 In the process shown, quartz, Guangxi kaolin ore and calcite are first mixed and ball milled, and then Longyan ball soil and Hunan silica are added together for ball milling to control the fineness of the slurry. Press filtration for dehydration, stale for 5 days, press molding, and dry the green body at 80°C for 12 hours. According to the above enamel formula, 0.3% carboxymethyl cellulose CMC is added, and the glaze slurry containing praseodymium oxide is prepared through ball milling, sieving, ...

Embodiment 2

[0041] The raw material composition of the green body is as follows: 15% of Longyan ball clay (high plasticity clay), 5% of Hunan silica (low plasticity clay), 38% of Guangxi kaolin ore, 10% of calcite, and 32% of quartz. The composition of the enamel slurry is as follows: 24% potassium feldspar, 27% quartz, 15% calcite, 2% calcined talc, 30% Longyan washing mud, 2% zinc oxide, and 0.1% praseodymium oxide.

[0042] According to the above porcelain blank formula, first mix quartz, Guangxi kaolin ore and calcite for ball milling, then add Longyan ball soil and Hunan silica into ball milling together to control the fineness of the slurry, and pass through a 250-mesh sieve with less than 0.5% of the slurry. Carry out dehydration by pressure filtration, stale for 6 days, press molding, and dry the body at 110°C for 12 hours. According to the above enamel formula, 0.3% carboxymethyl cellulose CMC is added, and the glaze slurry containing praseodymium oxide is prepared through ball m...

Embodiment 3

[0044]The raw material composition of the green body is as follows: 8% Longyan ball clay (high plasticity clay), 5% Hunan silica (low plasticity clay), 54% Guangxi kaolin ore, 15% calcite, and 18% quartz. The composition of the enamel slurry is as follows: 24% potassium feldspar, 27% quartz, 15% calcite, 2% calcined talc, 30% Longyan washing mud, 2% zinc oxide, and 0.1% praseodymium oxide.

[0045] According to the above porcelain blank formula, first mix quartz, Guangxi kaolin ore and calcite for ball milling, then add Longyan ball soil and Hunan silica into ball milling together to control the fineness of the slurry, and pass through a 250-mesh sieve with less than 0.5% of the slurry. Carry out dehydration by pressure filtration, stale for 6 days, press molding, and dry the body at 110°C for 12 hours. According to the above enamel formula, 0.3% carboxymethyl cellulose CMC is added, and the glaze slurry containing praseodymium oxide is prepared through ball milling, sieving, ...

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Abstract

The invention discloses a preparation method of emerald ceramic, which comprises the steps of: (1) weighing raw materials according to a formula, mixing quartz, Guangxi Kaolinite and calcite for carrying wet-method ball-grinding, adding high-plasticity clay and low-plasticity clay for carrying out wet-method ball-grinding; (2) sieving and dewatering, ageing mud for 4-6 days, drying at a temperature of 80-110 DEG C after carrying out plastic forming; and (3) glazing, insulating the temperature at a temperature of 1240-1280 DEG C for 1-1.5h in an oxidizing atmosphere, and then cooling. The prepared emerald ceramic has the advantages of better permeability, light green color, emerald texture, high strength, good heat stability, lower production cost and better application value.

Description

technical field [0001] The invention relates to a preparation method of emerald jade porcelain, which belongs to the field of high-grade daily-use porcelain. Background technique [0002] With the improvement of living standards, people's consumption concepts are constantly changing, and daily-use porcelain is not only required to be practical, but also to have a certain appreciation value. Bone china has the reputation of "thin as paper, bright as mirror, white as jade, and full of sound" because of its high whiteness, fine porcelain quality, smooth glaze and good light transmission performance. It is recognized as a high-end porcelain in the world today. . The light transmission performance of bone china is closely related to the refractive index n of each phase of the porcelain body. Generally, the phase composition of bone china with good quality is: 42-46% of tricalcium phosphate, 34-39% of anorthite, 16-20% of glass phase, less than 3% of residual quartz, and 3-5% of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/00C04B41/86
Inventor 程小苏柯善军曾令可税安泽王慧刘平安
Owner SOUTH CHINA UNIV OF TECH
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