Artificial jade dishware and preparation method thereof

A jade and artificial technology, which is applied in the field of artificial jade tableware and its preparation, can solve the problems of no technical data retrieved, low thermal expansion coefficient, thermal shock stability, etc., and achieve the effect of moist and smooth appearance and high thermal shock resistance

Active Publication Date: 2012-04-18
ZIBO GT INDAL CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The Mohs hardness of cordierite mineral is 7-7.5, and its chemical formula is 2MgO·2Al 2 o 3 ·5SiO2 2 , the theoretical chemical composition is MgO13.7%, Al 2 o 3 34.9%, SiO 2 51.4%, because it has a very low coefficient of thermal expansion and excellent thermal shock stability, it is widely used in the manufacture of kiln furniture for industrial ceramics or ceramic accessories that are resistant to high temperature and impact. Currently, there is no retrieval of cordierite as the main crystal phase. Technical data of tableware

Method used

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  • Artificial jade dishware and preparation method thereof
  • Artificial jade dishware and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: add the vanadium blue of 1.5% of raw material gross weight, spray and granulate into 16-100 mesh particle, the granularity of particle is: 16-40 mesh sieve residue: 30%; 40-80 mesh sieve residue: 48%; 80 -100-mesh sieve: 20%; 100-mesh sieve accounted for 2%; isostatic pressing forming green body, the pressure of isostatic pressing is 60Mpa. After 3 days of natural drying, the green body is fired in a kiln at a firing temperature of 1280°C and a firing holding time of 45 minutes.

Embodiment 2

[0036] Example 2: adding 0.6% of the total weight of the raw materials to the iron red, spraying and granulating into 16-100 mesh particles, the particle size of the particles is: 16-40 mesh sieve residue: 35%; 40-80 mesh sieve residue: 40%; Remainder of 80-100 mesh sieve: 18%; 100 mesh sieve accounted for 7%; the green body obtained by isostatic pressing, the pressure of isostatic pressing is 100Mpa. The green body is naturally dried for 3 days and then fired in a kiln at a firing temperature of 1280°C and a firing holding time of 120 minutes.

Embodiment 3

[0037] Embodiment 3: Spray granulation into 16-100 mesh particles, the particle size of the particles is: 16-40 mesh sieve: 20%; 40-80 mesh sieve: 48%; 80-100 mesh sieve: 19%; 100 Under the mesh sieve, it accounts for 13%; the green body is obtained by isostatic pressing, and the pressure of isostatic pressing is 160Mpa. The green body is naturally dried for 2 days and then fired in a kiln at a firing temperature of 1300°C and a firing holding time of 90 minutes.

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Abstract

The invention belongs to the field of artificial synthesis of jades, in particular to an artificial jade dishware and a preparation method thereof. The artificial jade dishware comprises the following components by weight percent: 6.5-10.0% of MgO, 22-28% of A12O3, 60-67% of SiO2, 1.7-4.0% of K2O, less than or equal to 0.2% of Fe2O3 and less than or equal to 0.2% of TiO2. The preparation method of the artificial jade dishware comprises the following steps of material preparation, grinding, granulation, blank making and firing. The invention has the advantages that: the artificial jade dishware is prepared by synthetic cordierite, industrial alumina, high-purity kaolinite clay, quartz and other common inorganic raw materials, and the surface of the prepared product has no glaze layer, and the prepared product does not contain lead, cadmium or other heavy metals compared with the traditional ceramics, The appearance is moist and smooth and has a jade texture, and the light transmittance, the hardness and the thermal shock resistance are much higher than those of bone china, magnesia strengthening porcelain and other traditional ceramics.

Description

technical field [0001] The invention belongs to the artificial synthesis field of jade, and in particular relates to an artificial jade tableware and a preparation method thereof. Background technique [0002] Natural jade is dense and tough. It is processed into various handicrafts and has high ornamental, use and collection value. However, the resources are limited and the price is too expensive to be accepted by the public. In recent years, artificial jade products have been appearing on the market, most of which are made by adding stone powder to resin. The main disadvantages are low hardness, poor thermal and chemical stability, and cannot be used to make tableware. [0003] Patent CN101717248A records a kind of medium and low temperature sintered daily-use talc porcelain with talc, kaolin, feldspar, and alumina as raw materials. Difficult to form, difficult to fire and easy to fry porcelain, but the product contains many kinds of crystals such as cordierite and origin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/08
Inventor 张守智张启山沈松龄张昆李玉强李宇平蒋绪贵刘杰李志军朱秀水
Owner ZIBO GT INDAL CERAMICS
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