Low expansion mat glaze and cordierite barbecue plate coated with glaze

A low-expansion, matte glaze technology, applied in the field of ceramic glazes, can solve difficulties and other problems, and achieve the effect of fine and smooth glaze surface, small thermal expansion coefficient and good thermal shock resistance

Active Publication Date: 2014-12-10
广东道氏陶瓷材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very difficult to prepare a glaze that matches the coefficient of thermal expansion and meets the requirements of cordierite low-expansion ceramic material in terms of appearance quality.

Method used

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  • Low expansion mat glaze and cordierite barbecue plate coated with glaze
  • Low expansion mat glaze and cordierite barbecue plate coated with glaze
  • Low expansion mat glaze and cordierite barbecue plate coated with glaze

Examples

Experimental program
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Effect test

preparation example Construction

[0039] (1) Preparation of bottom glaze slurry

[0040] 1) Weigh raw materials for bottom glaze: 50-75 parts of spodumene, 0-10 parts of quartz, 5-10 parts of dolomite, 5-15 parts of talc, 0-3 parts of lithium carbonate, 3-7 parts of kaolin, barium carbonate 0-3 parts, mix well;

[0041] 2) Add sodium carboxymethyl cellulose, sodium tripolyphosphate and water to the above mixture, the mass of which is respectively 0.2-0.4%, 0.2-0.5% and 50-70% of the total mass of the bottom glaze raw materials, and ball mill to form a glaze slurry , control the fineness of the glaze slurry to be 250 mesh sieve ≤ 1.5%, and obtain the bottom glaze slurry;

[0042] (2) Preparation of surface glaze slurry

[0043] 1) Weigh the surface glaze raw materials: 50-75 parts of spodumene, 5-15 parts of quartz, 0-8 parts of dolomite, 3-10 parts of kaolin, 0-5 parts of zinc oxide, and mix well;

[0044] 2) Add sodium carboxymethyl cellulose, sodium tripolyphosphate and water to the above mixture, the mas...

Embodiment 1

[0056] (1) Preparation of bottom glaze slurry

[0057] 1) Weigh the bottom glaze raw materials: 50 parts of spodumene, 10 parts of quartz, 10 parts of dolomite, 11 parts of talc, 2 parts of lithium carbonate, 6 parts of kaolin, 3 parts of barium carbonate, and mix well;

[0058] 2) Add sodium carboxymethyl cellulose, sodium tripolyphosphate and water to the above mixture, the mass of which is respectively 0.25%, 0.3% and 50% of the total mass of the bottom glaze raw materials, and ball mill it into a glaze slurry to control the fineness of the glaze slurry It is 250 mesh sieve remaining 1%, obtains bottom glaze slurry, and its specific gravity is 1.65g / cm 3 ;

[0059] (2) Preparation of surface glaze slurry

[0060] 1) Weigh the surface glaze raw materials: 58 parts of spodumene, 13 parts of quartz, 6 parts of dolomite, 10 parts of kaolin, 2 parts of zinc oxide, and mix well;

[0061] 2) Add sodium carboxymethyl cellulose, sodium tripolyphosphate and water to the above mixt...

Embodiment 2

[0069] (1) Preparation of bottom glaze slurry

[0070] 1) Weigh the bottom glaze raw materials: 60 parts of spodumene, 6 parts of quartz, 9 parts of dolomite, 11 parts of talc, 2.5 parts of lithium carbonate, 4 parts of kaolin, 2.5 parts of barium carbonate, and mix well;

[0071] 2) Add sodium carboxymethyl cellulose, sodium tripolyphosphate and water to the above mixture, the mass of which is respectively 0.25%, 0.3% and 50% of the total mass of the bottom glaze raw materials, and ball mill it into a glaze slurry to control the fineness of the glaze slurry Be 250 mesh sieve remaining 0.5%, obtain bottom glaze slurry;

[0072] (2) Preparation of surface glaze slurry

[0073] 1) Weigh the surface glaze raw materials: 60 parts of spodumene, 13 parts of quartz, 5 parts of dolomite, 10 parts of kaolin, 2 parts of zinc oxide, mix well;

[0074] 2) Add sodium carboxymethyl cellulose, sodium tripolyphosphate and water to the above mixture, the mass of which is respectively 0.25%, ...

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Abstract

The invention discloses low expansion mat glaze and a cordierite barbecue plate coated with the glaze. The glaze comprises bottom glaze and surface glaze, wherein the bottom glaze is made from spodumene, quartz, dolomite, talc, lithium carbonate, kaolin and barium carbonate, and the surface glaze is made from spodumene, quartz, dolomite, kaolin and zinc oxide. The preparation method of the cordierite barbecue plate coated with the glaze comprises the following steps: uniformly mixing a bottom glaze raw material and adding an adhesive, a dispergator and water, and ball-milling to obtain bottom glaze slurry; uniformly mixing the surface glaze raw material and adding an adhesive, a dispergator and water, and ball-milling to obtain surface glaze slurry; spraying the bottom glaze slurry to the surface of the cordierite barbecue plate, and then applying the surface glaze slurry to the plate; and firing for 40-60 minutes at 1200-1260 DEG C and cooling. The glaze layer formed by the glaze is good in thermal shock resistance, high in compactness and fine and smooth and can be used for effectively preventing harmful matters from internally permeating.

Description

technical field [0001] The invention belongs to the technical field of ceramic glazes, in particular to a low-expansion matte glaze and a cordierite barbecue plate coated with the glaze. Background technique [0002] Compared with aluminum and iron daily necessities, heat-resistant ceramic products can not only process food on a variety of heat sources without any side effects on the human body, but also have many advantages such as beautiful appearance and easy cleaning, and are more and more accepted and loved by the public. [0003] With the improvement of people's requirements for the quality of life, people's requirements for porcelain tend to be artistic for daily-use ceramics and practical for artistic ceramics. The low-expansion ceramic materials used in industry are plain porcelain, which has poor decorative effect and is not easy to clean; but when used in household cookware and other products, in order to facilitate washing and cleaning and aesthetic requirements,...

Claims

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Application Information

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IPC IPC(8): C04B41/86
Inventor 赵秀娟余水林曾青蓉陈科恺
Owner 广东道氏陶瓷材料有限公司
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