Cordierite transparent wear resistant glaze and preparation method thereof

A cordierite and transparent technology, which is applied in the field of cordierite transparent wear-resistant glaze and its preparation, can solve the problems of raw material cost, high firing energy consumption, easy peeling, poor bonding force, etc., to save mineral resources and energy consumption , The firing industry is simple, and the effect of improving heat resistance

Active Publication Date: 2017-07-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the particle size of the transparent frit is strictly required. If the particle size is too coarse and the base glaze has poor bonding force, it will easily peel off; if it is too fine, it will easily melt into the base glaze and reduce the wear resistance effect.
However, this patent does not explain in principle that there are transparent frit particles in the transparent glaze, and the glaze surface will be transparent, because if there are particles in the glaze surface, the viscosity around the particles is very large, and the air bubbles are difficult to get rid of; followed by transparent glaze and The bonding of the transparent frit is difficult to control, and there is no guarantee that the transparent frit particles will not react with ...

Method used

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  • Cordierite transparent wear resistant glaze and preparation method thereof
  • Cordierite transparent wear resistant glaze and preparation method thereof
  • Cordierite transparent wear resistant glaze and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Take by weighing 48 parts by weight of mineral raw material kaolin, 28 parts by weight of talc, 2 parts by weight of albite, 7 parts by weight of calcium carbonate, 6 parts by weight of boric acid, 4 parts by weight of lithium carbonate, and 5 parts by weight of quartz, and mix them by ball milling , dried and sieved, and then the powder was kept at 1400°C for 2 hours and then quenched to form a frit. The prepared frit was ball milled and dried through a 80-mesh sieve.

[0032] (2) Add a small amount of kaolin to the frit powder prepared in step (1) and put it into a ball mill tank for wet ball milling and mixing for 1 hour. The number of ball milling rotations is 400 rpm. According to raw materials: ball stone = 2:1, add 5wt % kaolin, add 0.8wt% CMC as a thickener, and keep the solid content at 55%.

[0033] (3) Glaze the slurry obtained in step (2) on the bisque-fired green body, after natural air drying, put it into an electric furnace to raise the temperature t...

Embodiment 2

[0038] (1) Take by weighing 50 parts by weight of mineral raw material kaolin, 32 parts by weight of talc, 2 parts by weight of albite, 5 parts by weight of tricalcium phosphate, 8 parts by weight of boric acid, 1 part by weight of lithium carbonate, and 2 parts by weight of quartz, and ball mill it After mixing, drying and sieving, the powder was kept at 1450°C for 1.5h and then quenched to form a frit. The prepared frit was ball milled and dried through a 80-mesh sieve.

[0039] (2) Add a small amount of kaolin to the frit powder prepared in step (1) and put it into a ball mill tank for wet ball milling and mixing for 0.5h. The number of ball milling rotations is 500 rpm. 8wt% kaolin, add 0.5wt% CMC as a thickener, and keep the solid content at 60%.

[0040] (3) Glaze the slurry obtained in step (2) on the bisque-fired green body, and after natural air drying, put it into an electric furnace to raise the temperature to 1250°C at a rate of 15°C / min and keep it warm for 30 mi...

Embodiment 3

[0044] (1) Adopt mineral raw materials to take by weighing 55 parts by weight of kaolin, 25 parts by weight of talc, 2 parts by weight of albite, 8 parts by weight of calcium pyrophosphate, 4 parts by weight of boric acid, 5 parts by weight of lithium carbonate, and 1 part by weight of quartz, Mix by ball milling, dry and sieve, then heat the powder at 1450°C for 2 hours and then quench to make a frit. The prepared frit was ball milled and dried through a 80-mesh sieve.

[0045] (2) Add a small amount of kaolin to the frit powder prepared in step (1) and put it into a ball mill tank for wet ball milling and mixing for 1 hour. The number of ball milling rotations is 400 rpm. According to ball stone: raw material = 2:1, add 5wt % kaolin, add 0.5wt% CMC as a thickener, and keep the solid content at 55%.

[0046](3) Glaze the slurry obtained in step (2) on the bisque-fired green body. After natural air drying, put it into an electric furnace to raise the temperature to 1200°C at ...

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Abstract

The invention discloses a cordierite transparent wear resistant glaze, which comprises the following components in percentage by weight: 50 to 55% of kaolin, 25 to 32% of talcum, 2 to 8% of albite, 5 to 8% of calcium containing compound, 4 to 8% of boric acid, 1 to 5% of lithium carbonate, and the balance being quartz. The invention also discloses a preparation method of the cordierite transparent wear resistant glaze. The wear resistant performance of conventional ceramic tiles is enhanced, the raw material utilization rate is improved, during the preparation process, no nucleating agent is needed, the sintering temperature is low, the sintering technology is simple, and the glaze coloring caused by a nucleating agent is avoided.

Description

technical field [0001] The invention relates to a glaze and a preparation method thereof, in particular to a cordierite transparent wear-resistant glaze and a preparation method thereof. Background technique [0002] The molecular formula of cordierite is 2MgO 2Al 2 o 3 ·5SiO2 2 , it has three crystal forms. It exists in the form of μ-cordierite at low temperature, also known as magnesium aluminum silicate, which belongs to the rhombohedral crystal system; crystallizes at 950°C to form β-cordierite, which belongs to the orthorhombic crystal system and exists in nature. A form of α-cordierite at high temperature, which belongs to the hexagonal plate. Because of its low thermal expansion coefficient, low thermal conductivity, good thermal shock resistance, low dielectric constant, and low dielectric loss, cordierite is widely used in automobile exhaust emissions, foam ceramics, honeycomb ceramics, and turbine engines. As well as various aspects of industrial heat exchanger...

Claims

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Application Information

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IPC IPC(8): C03C8/14
CPCC03C8/14
Inventor 吕明陈鹏彭诚饶平根吴建青
Owner SOUTH CHINA UNIV OF TECH
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