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Medium-temperature hard fine porcelain with high whiteness, high transparency and high strength and preparation method of medium-temperature hard fine porcelain

A high-strength, high-penetration technology, applied in clay products, other household appliances, applications, etc., can solve the problems of difficult process control, poor thermal stability, high cost, achieve good thermal stability, reduce firing shrinkage and deformation, The effect of reducing production costs

Inactive Publication Date: 2016-06-22
南京豪祺新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing bone china, talc china and high quartz porcelain meet the requirements of high whiteness, high transparency and high strength, they all have common shortcomings such as poor thermal stability, difficult process control and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for preparing high-white, high-transparency, high-strength medium-temperature hard fine porcelain, comprising the following steps:

[0047] (1) Ingredients

[0048] Ingredients by weight: 38 parts of kaolin, 31 parts of quartz, 18 parts of potassium feldspar, 7 parts of alumina, 6 parts of glass frit, 0.4 part of sodium humate, 0.2 part of water glass, and 0.1 part of sodium tripolyphosphate;

[0049] (2) ball mill

[0050] Obtain the slurry after ball milling for 15 hours according to the mass ratio of material: ball stone: water=1: 1.5: 0.35;

[0051] (3) Detect the fineness of the slurry

[0052] Particles whose slurry fineness is controlled below 10 μm account for 78wt%;

[0053] (4) Remove iron after passing the slurry meeting the fineness requirements through a 200-mesh sieve;

[0054] (5) stale

[0055] The mud that has been screened to remove iron is stale, the specific gravity of the mud is 1.68 g / ml, and the viscosity of the mud is 1800 centipois...

Embodiment 2

[0072] A method for preparing high-white, high-transparency, high-strength medium-temperature hard fine porcelain, comprising the following steps:

[0073] (1) Ingredients

[0074] Ingredients by weight: 36 parts of kaolin, 30 parts of quartz, 19 parts of potassium feldspar, 8 parts of alumina, 7 parts of glass frit, 0.4 part of sodium humate, 0.3 part of water glass, and 0.15 part of sodium tripolyphosphate;

[0075] (2) ball mill

[0076] Obtain the slurry after ball milling for 19 hours according to the mass ratio of material: ball stone: water=1:2:0.4;

[0077] (3) Detect the fineness of the slurry

[0078] 80wt% of particles whose slurry fineness is controlled below 10μm;

[0079] (4) Remove iron after passing the slurry meeting the fineness requirements through a 200-mesh sieve;

[0080] (5) stale

[0081] The mud that has been screened to remove iron is stale, and the performance of the mud is adjusted. The specific gravity of the mud is 1.6 g / ml, and the viscosity...

Embodiment 3

[0098] A method for preparing high-white, high-transparency, high-strength medium-temperature hard fine porcelain, comprising the following steps:

[0099] (1) Ingredients

[0100] Ingredients by weight: 38 parts of kaolin, 31 parts of quartz, 18 parts of potassium feldspar, 7 parts of alumina, 6 parts of glass frit, 0.3 part of sodium humate, 0.3 part of water glass, and 0.15 part of sodium tripolyphosphate;

[0101] (2) ball mill

[0102] According to the mass ratio of material: ball stone: water=1: 2.5: 0.45, the slurry was obtained after ball milling for 23 hours;

[0103] (3) Detect the fineness of the slurry

[0104] The particles whose slurry fineness is controlled below 10 μm account for 82wt%;

[0105] (4) Remove iron after passing the slurry meeting the fineness requirements through a 200-mesh sieve;

[0106] (5) stale

[0107] The mud that has been sieved to remove iron is stale, and the performance of the mud is adjusted. The specific gravity of the mud is 1.5...

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Abstract

The invention relates to medium-temperature hard fine porcelain with high whiteness, high transparency and high strength and a preparation method of the medium-temperature hard fine porcelain. The medium-temperature hard fine porcelain with high whiteness, high transparency and high strength is prepared from the following chemical components in parts by weight: 66 to72 parts of SiO2, 23 to 28 parts of Al2O3, 0.5 to 4 parts of CaO, 0.3 to 3 parts of MgO, 1 to 5 parts of K2O, 0.5 to 2.5 parts of Na2O and 0.2 to 1 part of B2O3. The preparation method of the medium-temperature hard fine porcelain with high whiteness, high transparency and high strength comprises the following steps of firstly, burdening; secondly, performing ball milling; thirdly, detecting the fineness of slurry; fourthly, sieving and removing iron; fifthly, ageing; sixthly, performing slip casting; seventhly, primary drying; eighthly, fettling; ninthly, glazing; tenthly, performing secondary drying; eleventhly, firing.

Description

technical field [0001] The invention relates to the technical field of daily-use ceramics, in particular to a medium-temperature hard fine porcelain with high whiteness, high transparency and high strength and a preparation method thereof. Background technique [0002] At present, the international ceramic industry is gradually reorganizing, and the production pattern is being adjusted and changed. Some developed countries, such as Germany, the United States, and Japan, rely on their technology and capital advantages to focus on the development of high-tech ceramics; while the production of daily-use ceramics is gradually shifting to developing countries due to the increase in raw materials and labor costs and relatively low added value. country, which provides a rare opportunity for my country's ceramic products to seize the international market. [0003] The export volume of my country's daily-use ceramics ranks first in the world, but the situation of low average selling ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B33/16C04B33/34C04B41/86C03C8/00
CPCC03C8/00C04B33/13C04B33/16C04B33/34C04B41/5022C04B41/86C04B2201/32C04B2201/50C04B2235/3217C04B2235/3427C04B2235/3472C04B2235/36C04B41/4539
Inventor 张垠张子祺
Owner 南京豪祺新材料有限公司
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