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Method for firing underglaze colored cracked ceramics at high temperature

A high-temperature firing and ceramic technology, which is applied in the field of high-temperature firing underglaze color crack ceramics, can solve the problems of poor shock resistance and thermal stability, brokenness, and inability to be widely used, and achieve good shock resistance and thermal stability.

Inactive Publication Date: 2017-06-16
PINGDINGSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of ceramics is not suitable for daily-use ceramic products, because the glaze on the surface has been cracked, and the shock resistance and thermal stability are very poor. A slight collision may cause it to break, and generally it can only be used as a decoration. Without practicality, it cannot be widely used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] S1. Preparation of ceramic mud body

[0028] S11. Weigh 92 parts of zirconia, 1 part of silicon oxide, 1 part of feldspar, 0.5 part of kaolin, 1.5 parts of zirconium silicate, and 0.5 part of fluorine-containing additives and pour them into a ball mill. The mass ratio of raw materials to ball stones in the ball mill is 4 : 1, ball milled for 21 hours, and the ball mill rotating speed was 32r / min to obtain slurry;

[0029] S12. Weighing 1 part of inorganic nanoparticles and dispersing them in pure water through an ultrasonic oscillation device to form an inorganic nanoparticle dispersion;

[0030] S13. Inject the dispersion into the twin-screw extruder through the liquid feeding pump to blend with the slurry, heat until all the water evaporates, and granulate to obtain powder;

[0031] S14. Put the obtained powder into a homogenizer and stir for 25 minutes. The speed of the homogenizer is 12r / min. After passing through a 80-mesh sieve and a 115-mesh sieve, add it to a m...

Embodiment 2

[0038] S1. Preparation of ceramic mud body

[0039] S11. Weigh 95 parts of zirconia, 3 parts of silicon oxide, 2 parts of feldspar, 1.5 parts of kaolin, 2.5 parts of zirconium silicate, and 5 parts of fluorine-containing additives and pour them into the ball mill. The mass ratio of raw materials to ball stones in the ball mill is 6 : 1, ball milled for 25 hours, and the ball mill rotating speed was 36r / min to obtain slurry;

[0040] S12. Weighing 10 parts of inorganic nanoparticles and dispersing them in pure water through an ultrasonic oscillation device to form an inorganic nanoparticle dispersion;

[0041] S13. Inject the dispersion into the twin-screw extruder through the liquid feeding pump to blend with the slurry, heat until all the water evaporates, and granulate to obtain powder;

[0042] S14. Put the obtained powder into a homogenizer and stir for 35 minutes, the homogenizer speed is 15r / min, pass through a 90-mesh sieve in turn, and after sieving through a 130-mesh...

Embodiment 3

[0049] S1. Preparation of ceramic mud body

[0050] S11. Weigh 93.5 parts of zirconia, 2 parts of silicon oxide, 1.5 parts of feldspar, 1 part of kaolin, 2 parts of zirconium silicate, and 2.75 parts of fluorine-containing additives and pour them into the ball mill. The mass ratio of raw materials to ball stones in the ball mill is 5 : 1, ball milled for 23 hours, and the ball mill rotating speed was 34r / min to obtain slurry;

[0051]S12. Weighing 5.5 parts of inorganic nanoparticles and dispersing them in pure water through an ultrasonic oscillation device to form an inorganic nanoparticle dispersion;

[0052] S13. Inject the dispersion into the twin-screw extruder through the liquid feeding pump to blend with the slurry, heat until all the water evaporates, and granulate to obtain powder;

[0053] S14, put the obtained powder into a homogenizer and stir for 30 minutes, the homogenizer speed is 13.5r / min, pass through an 85 mesh sieve in turn, and after 112.5 mesh sieves, ad...

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PUM

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Abstract

The invention discloses a method for high-temperature firing of underglaze color crackle ceramic. The method comprises steps as follows: 92-95 parts of zirconia, 1-3 parts of silicon oxide, 1-2 parts of feldspar, 0.5-1.5 parts of kaolin, 1.5-2.5 parts of zirconium silicate and 0.5-5 parts of a fluorine-containing additive are weighed out for ball milling and then mixed with an inorganic nano-particle dispersion liquid, and a ceramic clay body is prepared; 30-35 parts of feldspar powder, 5-10 parts of calcium magnesium powder, 3-8 parts of melilite, 5-10 parts of calcite, 3-8 parts of dolomite, 5-10 parts of kaolin, 20-25 parts of silicon oxide, 5-10 parts of zinc oxide, 3-6 parts of calcium carbonate, 3-6 parts of a heat-resistant agent and 5-15 parts of water are weighed out for ball milling, and then transparent feldspar glaze slurry is prepared; the obtained ceramic clay body is placed in the slurry for soaking and placed in a kiln for firing after being dried. The prepared finished product has the concave-and-convex stereoscopic crackle effect and the good shock resistance and heat stability.

Description

technical field [0001] The invention relates to a method for making ceramic daily necessities, in particular to a method for firing underglaze colored crack ceramics at high temperature. Background technique [0002] Ceramic products are formed by processing the powder material into a certain state according to the compacting method of the ceramic itself, pressing it with a pressing method suitable for the product, and then sintering it, so the ceramic material is in the pressing stage. The strength of the material, the strength of the material after the drying process after pressing, the shrinkage during the drying process and the shrinkage during the sintering process, and the denaturation caused by the softening of the material during the sintering process all directly affect the quality of the ceramic product. Ceramic products are used in a wide range of fields, but the requirements for the characteristics of ceramic products used in different fields are also different. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/48C04B35/622C04B41/86
Inventor 刘斐宋亚萍史荣利轩一心周贝张杨刘光甫
Owner PINGDINGSHAN UNIVERSITY
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