Strengthened dolomite pottery blank mud

A white cloud and pottery blank technology, applied in the field of white cloud pottery blank mud, can solve the problems of high glaze firing temperature, many blank glaze bonding defects, unstable process indicators of blank glaze adaptability, etc., and achieve the effect of offsetting stress contrast

Active Publication Date: 2015-03-11
FUJIAN WILL CERAMIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mud material can overcome the problems of the existing strengthened white cloud pottery, such as many defects in the combination of the glaze and the unstable process index of the adaptability of the glaze, and the high firing temperature of the glaze.

Method used

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  • Strengthened dolomite pottery blank mud

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0023] Strengthen the mud of Baiyun pottery, the mud preferably includes the following components by weight percentage: 65% SiO 2 , 12.7% Al 2 o 3 , 8.5% MgO, 5.0% CaO, 1.5% K 2 O, 0.6% Na 2 O, 5.8% loss on ignition and a small amount of Fe 2 o 3 、TiO 2 and other impurities. SiO in formulation 2、Al 2 o 3 , MgO, CaO, K 2 O, Na 2 O and other chemical components can be introduced through natural mineral raw materials such as kaolin, ball clay, magnesia clay, bentonite, porcelain stone, talc, tremolite, diopside, wollastonite, potassium, and albite. Among them, kaolin, ball clay, magnesia clay, bentonite, etc. can also contribute to the forming of mud mud, such as plasticity and cohesiveness.

[0024] The strengthened white cloud pottery mud of the present invention has a glaze firing temperature of 1080±10°C. The mud expansion coefficient is controlled at β200~230×10 —6 In the range of / ℃, the expansion coefficient range of the glaze is β170~200×10 —6 / °C, the fire...

Embodiment approach 2

[0026] Strengthen the white cloud pottery mud, the mud mud includes subordinate components by weight percentage: 69.8% SiO 2 , 11.6% Al 2 o 3 , 6.0% MgO, 6.9% CaO, 1.3% K 2 O, 0.5% Na 2 O, 3.5% loss on ignition and a small amount of Fe 2 o 3 、TiO 2 and other impurities. SiO in formulation 2 、Al 2 o 3 , MgO, CaO, K 2 O, Na 2 Chemical elements such as O can be introduced through natural mineral raw materials such as kaolin, ball clay, magnesia clay, bentonite, porcelain stone, talc, tremolite, diopside, wollastonite, and potassium albite feldspar.

Embodiment approach 3

[0028] Strengthen the mud of Baiyun pottery, which includes the following components by weight percentage: 60.7% SiO 2 , 14.7% Al 2 o 3 , 6.1% MgO, 8.0% CaO, 2.1% K 2 O, 0.8% Na 2 O, 7.0% loss on ignition and a small amount of Fe 2 o 3 、TiO 2 and other impurities. SiO in formulation 2 、Al 2 o 3 , MgO, CaO, K 2 O, Na 2 Chemical elements such as O can be introduced through natural mineral raw materials such as kaolin, ball clay, magnesia clay, bentonite, porcelain stone, talc, tremolite, diopside, wollastonite, and potassium albite feldspar.

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Abstract

The invention relates to strengthened dolomite pottery blank mud and particularly relates to a formula of the strengthened dolomite pottery blank mud, which can form a coupling and self-adapting blank glaze intermediate layer through blank glaze mass transfer interaction, and a preparation process thereof. The blank mud contains the following chemical ingredients in percentage by weight: 60-70% of SiO2, 11-15% of Al2O3, 6-10% of MgO, 2-8% of CaO, 0.5-3.0% of K2O, 0.5-3.0% of Na2O and 3.5-7.0% of loss on ignition, wherein the total ingredient content of MgO and CaO is higher than 12%, and the total ingredient content of Na2O and K2O is lower than 3%. According to strengthened dolomite pottery prepared from the blank glaze coupled and self-adapted strengthened dolomite pottery blank mud disclosed by the invention through firing, when the strengthened dolomite pottery is autoclaved for 30 minutes in an autoclave at the temperature of 170 DEG C while maintaining the pressure of 500KPa, the phenomena of glaze peeling and glaze cracking do not occur, so that the blank glaze binding performance reaches the standards of export products.

Description

technical field [0001] The invention relates to a white cloud pottery mud, in particular to a formula and a preparation process for strengthening the white cloud pottery mud which can form a coupling self-adaptive green middle layer through the mass transfer interaction of the body glaze. Background technique [0002] Strengthened white cloud pottery, also known as heavy white cloud pottery, is an upgraded version of light white cloud pottery. In the early 1990s, Taiwanese ceramic manufacturers went westward to invest in the mainland to set up factories, and introduced a new type of low-temperature lightweight ceramics originally produced in Japan-lightweight dolomites. Calcium-magnesium carbonate mineral raw materials such as magnesite and magnesite, endow the porcelain with the characteristics of light weight, low firing temperature (1060°C) and low shrinkage (shrinkage rate 4-6%), making this porcelain popular in Europe and America very quickly Furnishing porcelain marke...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13
Inventor 黄新开
Owner FUJIAN WILL CERAMIC CO LTD
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