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Low-expansion heat-resistant ceramic plate

A ceramic plate and low-expansion technology, applied in the field of ceramics, can solve the problems of large expansion coefficient, polishing, and low strength, and achieve the effects of low expansion coefficient, good visual effect and good heat resistance

Inactive Publication Date: 2019-06-07
HEYUAN DONGYUAN EAGLE CERAMICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the glass-ceramic plate has a high melting point and low strength. It cannot be polished by mechanized and fully automatic methods in the production process. It can only be processed by semi-mechanized or pure manual processing. Therefore, its price is generally relatively high, resulting in high prices for induction cookers; Heat-resistant ceramic plates are generally produced by simple glazing methods, and their expansion coefficient is relatively large and water-absorbent, which cannot meet people's basic needs when used, and because the ceramic plates are relatively rough, the market acceptance is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take 10 parts of kaolin, 12 parts of talcum powder, 0.5 parts of polyvinyl alcohol, 0.4 parts of citric acid, 25 parts of cordierite, 3 parts of barium sulfate, and 1 part of titanium dioxide, add an appropriate amount of water, and use a ball mill for ball milling for 16 hours to obtain The fineness is 0.5% on a 250 mesh sieve. After removing iron, adjust the moisture content of the slurry to 38%, and then spray granulate to obtain particles with a particle size of 2-2.5mm, with a moisture content of 1%, and pass through the silo for 24 hours; then use an automatic brick pressing mechanism The billet has a thickness of 5.5mm and a length and width of 250mm. It is fired in a roller kiln at 1200°C, and the firing cycle is 35 to 45 minutes.

[0029] Take 75 parts of lithium feldspar, 5 parts of potassium feldspar, 6 parts of zinc oxide, 4 parts of kaolin, 8 parts of calcined talc, 2 parts of lithium carbonate, 3 parts of zinc carbonate, 1 part of dolomite, add appropriate...

Embodiment 2

[0031] Take 20 parts of kaolin, 8 parts of talcum powder, 1 part of polyvinyl alcohol, 0.2 parts of citric acid, 35 parts of cordierite, 1 part of barium sulfate, and 3 parts of titanium dioxide, add an appropriate amount of water, and use a ball mill for ball milling for 18 hours to obtain The fineness is 1.0% on a 250-mesh sieve. After removing iron, adjust the moisture content of the slurry to 42%, and then spray granulate to obtain particles with a particle size of 2-2.5mm, with a moisture content of 1%, and pass through the silo for 24 hours; then use an automatic brick pressing mechanism The billet has a thickness of 6.5mm and a length and width of 250mm. It is fired in a roller kiln at 1300°C, and the firing cycle is 35 to 45 minutes.

[0032] Take 65 parts of lithium feldspar, 15 parts of potassium feldspar, 4 parts of zinc oxide, 6 parts of kaolin, 6 parts of burnt talc, 4 parts of lithium carbonate, 1 part of zinc carbonate, 3 parts of dolomite, add appropriate amoun...

Embodiment 3

[0034] Take 15 parts of kaolin, 10 parts of talcum powder tailings, 0.8 parts of polyvinyl alcohol, 0.3 parts of citric acid, 30 parts of cordierite, 2 parts of barium sulfate, 2 parts of titanium dioxide, 1 part of polyurethane, and 3 parts of di-tert-butyl-p-cresol , add an appropriate amount of water, and use a ball mill to carry out ball milling for 18 hours to obtain a fineness of 250 mesh sieve remaining 0.8%. After removing iron, adjust the moisture content of the slurry to 40%, and then spray granulate to obtain particles with a particle size of 2-2.5mm, with a moisture content of 1%, and pass through the silo for 24 hours; then use an automatic brick pressing mechanism The billet has a thickness of 6mm and a length and width of 250mm. It is fired in a roller kiln at 1280°C, and the firing cycle is 35 to 45 minutes.

[0035] Take 70 parts of petalite, 10 parts of potassium feldspar, 5 parts of zinc oxide, 5 parts of kaolin, 7 parts of calcined talc, 3 parts of lithium ...

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Abstract

The invention provides a low-expansion heat-resistant ceramic plate, and belongs to the field of ceramics. The low-expansion heat-resistant ceramic plate comprises a plate, and the plate comprises, inparts by weight, 10-20 parts of kaolin, 8-12 parts of talcum powder, 0.5-1 part of polyvinyl alcohol, 0.2-0.4 part of citric acid, 25-35 parts of cordierite, 1-3 parts of barium sulfate and 1-3 partsof titanium dioxide. The low-expansion heat-resistant ceramic plate is good in heat-resistant performance, high in strength, low in expansion factor and free from water seepage.

Description

technical field [0001] The invention relates to the field of ceramics, in particular to a low-expansion heat-resistant ceramic plate. Background technique [0002] Glass-ceramic plates and heat-resistant ceramic plates are the mainstream choices for induction cooker panels in the market, among which glass-ceramic plates are the main ones. The advantages of glass-ceramic plates are good heat resistance, small expansion coefficient, and impervious to water; The main advantage is the low price. [0003] However, the glass-ceramic plate has a high melting point and low strength. It cannot be polished by mechanized and fully automatic methods in the production process. It can only be processed by semi-mechanized or pure manual processing. Therefore, its price is generally relatively high, resulting in high prices for induction cookers; Heat-resistant ceramic plates are generally produced by simple glazing methods, and their expansion coefficient is relatively large and water-abs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/195C04B35/622C04B41/86C03C8/00C04B35/634C04B35/632
Inventor 陈贤伟林伟吴则昌廖花妹程贵生
Owner HEYUAN DONGYUAN EAGLE CERAMICS CO LTD
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