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Ceramic manufacturing method using quartz as matrix material and product

A technology of matrix material and production method, which is applied in the field of daily-use ceramics, can solve the problems of lack of high-quality clay resources, and achieve the effects of abundant reserves, high strength, and stable chemical properties

Inactive Publication Date: 2011-10-12
HUNAN HUALIAN CHINA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] From the above analysis, it can be seen that the main raw material used in ceramics is clay, but high-quality clay resources are increasingly scarce.

Method used

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  • Ceramic manufacturing method using quartz as matrix material and product
  • Ceramic manufacturing method using quartz as matrix material and product

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A ceramic production method using quartz as the base material, using quartz (silicon dioxide) as the base material, and using alumina, basic oxide and magnesia as auxiliary materials; this embodiment uses the following raw material composition (mass percentage):

[0029] Silica 93-94%

[0030] Alumina 5%

[0031] Calcium Oxide 0.2%

[0032] Potassium Oxide 0.6%

[0033] Magnesium Oxide 0.5%

[0034] The remainder is impurity

[0035] First calcining the silicon dioxide raw material at 500-700°C, during the calcining process, β-quartz is transformed into α-quartz through crystal transformation to obtain a pre-synthesized powder, and then finely grind the obtained pre-synthesized powder. The raw materials with a particle size of less than 5 microns in the ground pre-synthesized powder account for 25% of the total amount of silica raw materials, and the rest are raw materials with a particle size greater than 5 microns. The pre-synthesized powder and other auxiliary m...

Embodiment 2

[0042] A ceramic production method using quartz as the base material, using quartz (silicon dioxide) as the base material, and using alumina, basic oxide and magnesia as auxiliary materials; this embodiment uses the following raw material composition (mass percentage):

[0043] Silica 90-92%

[0044] Alumina 3-4%

[0045] Calcium Oxide 0.2-0.3%

[0046] Potassium oxide 0.3-0.5%

[0047] Magnesium Oxide 0.2-0.5%

[0048] The remainder is impurity

[0049] First calcining the silicon dioxide raw material at 600-650°C, during the calcining process, β-quartz is transformed into α-quartz through crystal transformation to obtain a pre-synthesized powder, and then the obtained pre-synthesized powder is finely ground, finely The raw materials with a particle size of less than 5 microns in the ground pre-synthesized powder account for 25% of the total amount of silica raw materials, and the rest are raw materials with a particle size greater than 5 microns. The pre-synthesized pow...

Embodiment 3

[0055] A ceramic production method using quartz as the base material, using quartz (silicon dioxide) as the base material, and using alumina, basic oxide and magnesia as auxiliary materials; this embodiment adopts the following raw material composition (mass percentage):

[0056] Silica 92-93%

[0057] Alumina 4-5%

[0058] Calcium Oxide 0.6-0.7%

[0059] Potassium oxide 0.6-0.7%

[0060] Magnesium Oxide 0.6-1%

[0061] The remainder is impurity

[0062] Firstly, the silicon dioxide raw material is calcined at 500-700°C to convert β-quartz to α-quartz to obtain a pre-synthesized powder, and then the obtained pre-synthesized powder is finely ground, and the particle size of the pre-synthesized powder after fine grinding is Raw materials smaller than 5 microns account for 25% of the total amount of silica raw materials, and the remainder is raw materials with a particle size larger than 5 microns. Pre-synthesized powder, clay, potassium feldspar, talc and wollastonite are w...

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Abstract

The invention discloses a ceramic manufacturing method using quartz as a matrix material and a product. Silicon dioxide is used as the matrix material; aluminum oxide, basic oxide and magnesium oxide are used as auxiliary materials; and the ceramic comprises the following materials in part by weight: 90 to 94 percent of silicon dioxide, 3 to 6 percent of aluminum oxide, 0.5 to 1.5 percent of basic oxide, 0.2 to 1 percent of magnesium oxide and the balance of impurities. The method comprises the following steps of: calcining the silicon dioxide serving as the matrix material to obtain pre-synthesized powder, wherein the beta-quartz is converted into alpha-quartz by crystal transfer in the calcining process; grinding the obtained pre-synthesized powder, wherein the granularity distribution of the ground pre-synthesized powder meets certain requirements; weighing and proportioning the ground pre-synthesized powder and auxiliary materials in a ratio, performing wet milling in a ball mill to obtain slurry, and molding the slurry to obtain a daily ceramic blank; and preparing a ceramic product by the processes of drying, glazing, temperature controlled sintering and the like.

Description

technical field [0001] The invention relates to a ceramic production method and its products, in particular to a ceramic production method and product using quartz as a base material, belonging to the technical field of daily-use ceramics. Background technique [0002] Ceramics are indispensable daily necessities in people's daily life, and have been the main tableware, tea sets and containers for human life for thousands of years. The main component of traditional ceramic materials is aluminosilicate. The raw materials for making traditional ceramic materials are not high in purity, and the particle size is not uniform. Plastic molding technology or compression molding pressure is also low. Fine ceramics developed in modern times require high purity of raw materials, special requirements for particle size distribution, and relatively high pressure for compression molding. At present, according to different uses, ceramic materials can usually be divided into three categorie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B35/622
Inventor 李顺禄
Owner HUNAN HUALIAN CHINA IND
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