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Preparation method of low-temperature sintered high-strength ultrathin ceramic tile

A low-temperature firing, ceramic brick technology, applied in the field of material science, can solve problems such as increasing the cost of ceramic brick raw materials, and achieve the effects of reducing preparation costs, reducing costs, and saving production costs

Inactive Publication Date: 2015-06-03
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The document "Research on Improving the Performance of Large-scale Ultra-thin Building Ceramic Bricks", published in the Journal of Ceramics, Volume 27, No. 3, September 2006, reported a method of preparing high-strength ultra-thin bricks by adding industrial alumina ultrafine powder method, the alumina content reaches about 40%, and the strength is >140MPa, but in order to reduce the firing temperature, it is necessary to use alumina superfine powder and add lithium china stone, which will undoubtedly increase the raw material cost of ceramic tiles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Bauxite tailings were calcined at 600°C for 2 hours to obtain calcined bauxite tailings;

[0027] 2) Weigh 50 parts by weight of the calcined bauxite tailings in step 2), 19 parts by weight of feldspar, 25 parts by weight of quartz sand, 4.5 parts by weight of talc and 1.5 parts by weight of ball soil; ball mill to a particle size of 250 mesh;

[0028] 3) The ball-milled particles prepared in step 2) are spray-granulated, dry-pressed to a thickness of 3mm, and fired at 1100°C to obtain high-strength ultra-thin ceramic tiles.

[0029] The obtained high-strength ultra-thin ceramic brick has a flexural strength of 105MPa and a water absorption rate of 0.5%. The detection method is in accordance with the national standard GB / T23266-2009 "Ceramic Plate".

Embodiment 2

[0031] 1) Bauxite tailings were calcined at 600°C for 2 hours to obtain calcined bauxite tailings;

[0032] 2) Weigh 59 parts by weight of calcined bauxite tailings in step 2), 17 parts by weight of feldspar, 19.5 parts by weight of quartz sand, 1.5 parts by weight of talc and 3 parts by weight of ball soil; ball mill to a particle size of 250 mesh;

[0033] 3) The ball-milled particles prepared in step 2) are subjected to spray granulation, dry-pressed to a thickness of 3mm, and fired at 1130°C to obtain high-strength ultra-thin ceramic tiles.

[0034] The obtained high-strength ultra-thin ceramic brick has a flexural strength of 120 MPa and a water absorption rate of 0.45%. The detection method is in accordance with the national standard GB / T23266-2009 "Ceramic Plate".

Embodiment 3

[0036] 1) Bauxite tailings were calcined at 600°C for 2 hours to obtain calcined bauxite tailings;

[0037] 2) Weigh 71 parts by weight of calcined bauxite tailings in step 2), 9 parts by weight of feldspar, 15 parts by weight of quartz sand, 2.5 parts by weight of talc and 2.5 parts by weight of ball soil; ball mill to a particle size of 250 mesh;

[0038] 3) The ball-milled particles prepared in step 2) are subjected to spray granulation, dry-pressed to a thickness of 3mm, and fired at 1170°C to obtain high-strength ultra-thin ceramic tiles.

[0039] The obtained high-strength ultra-thin ceramic brick has a flexural strength of 165MPa and a water absorption rate of 0.3%. The detection method is in accordance with the national standard GB / T23266-2009 "Ceramic Plate".

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Abstract

The invention discloses a preparation method of a low-temperature sintered high-strength ultrathin ceramic tile, belonging to the field of material science. The preparation method disclosed by the invention comprises the steps: calcining alumina tailings at the temperature of 600 DEG C for 2h to obtain calcined alumina tailings; taking 50-71 parts by weight of calcined alumina tailings, 9-19 parts by weight of feldspar, 15-25 parts by weight of quartz sand, 1.5-4.5 parts by weight of talcum and 1.5-3 parts by weight of ball clay; and carrying out ball milling on the components to form the particle size of 250 meshes, carrying out spray granulation as well as dry pressing and forming to obtain a blank with the thickness of 3mm, and sintering at the temperature of 1100-1170 DEG C to obtain the high-strength ultrathin ceramic tile. The high-strength ultrathin ceramic tile obtained by the invention is widely applied to architectural ceramics.

Description

technical field [0001] The invention belongs to the field of material science, and in particular relates to a preparation method of low-temperature firing high-strength ultra-thin ceramic bricks. Background technique [0002] Bauxite tailings refer to low aluminum-silicon ratio, high kaolin content, high content of flux impurities such as potassium and sodium, or non-ferrous metal impurities such as iron and titanium. Good use of bauxite. Bauxite tailings are often discarded as waste ore due to poor grade, resulting in waste of resources and environmental pollution. Raw materials with high aluminum content are relatively high-grade raw materials in the ceramic industry. The alumina content of ordinary ceramics does not exceed 25%. Generally, alumina in ordinary ceramics is introduced with high-grade kaolin or feldspar, and the cost is relatively high. The ceramic industry uses less low-grade bauxite, because the crystal phase of ordinary ceramics is mainly quartz and mulli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/10C04B35/622
Inventor 吕明饶平根吴建青彭诚
Owner SOUTH CHINA UNIV OF TECH