Preparation method of one-step sintered glass-ceramic composite board

A technology of glass-ceramic and glass-ceramic frit, which is applied in the field of architectural ceramics, can solve the problems that glass-ceramic frit particles cannot play a role of bonding and fixation and are easily sucked away, and achieves the improvement of qualified yield and improvement The effect of flatness, avoidance of pinholes and air bubbles

Active Publication Date: 2015-01-07
泰州市海通资产管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in production, the bricks with good cloth are sent to the kiln for preheating in a low negative pressure environment, and the fine particles (especially less than 100 mesh) are easily sucked away due to their light weight, and the glue covering the surface The fixative cannot play a good bonding and fixing effect on the glass-ceramic frit particles

Method used

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  • Preparation method of one-step sintered glass-ceramic composite board
  • Preparation method of one-step sintered glass-ceramic composite board
  • Preparation method of one-step sintered glass-ceramic composite board

Examples

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preparation example Construction

[0025] Preparation of the bottom glaze: kaolin, quartz, potassium feldspar, albite, calcite, talc, dolomite, zinc oxide, zircon powder, and pyrophyllite are mixed as raw materials for the bottom glaze with a thickness of less than 100 mesh, and an appropriate amount of water and 0.5% Sodium tripolyphosphate, 0.3% methyl cellulose, wherein the chemical composition of the bottom glaze is (wt%) SiO2: 50%, Al2O3: 20%, CaO: 9%, MgO: 2%, K2O: 2%, Na2O : 3%, ZnO: 4%, ZrO2: 10%, and the fineness is 0.5% of the slurry bottom glaze of the million-hole sieve for use. It should be noted that the preparation of green body powder, micropowder formula components and bottom glaze given here can be replaced by other formula components in the common knowledge, and all can be applied to the composite glass-ceramics of the present invention. In the preparation method of the plate.

[0026] The pyrophyllite in the bottom glaze has good water absorption, which can alleviate the deformation of the ...

Embodiment 1-1

[0030] A method for preparing a once-fired transparent glass-ceramic composite board, comprising the following steps:

[0031] A. Green body stamping and forming: After the green body powder (fineness is 150 degrees) and micropowder powder (fineness is 150 degrees) are layered, punched into a green body with a bottom blank layer and a micropowder layer, wherein the micropowder layer The thickness is 1 / 2 of the bottom base layer thickness, dry;

[0032] B. Glaze printing: After drying the green body in step A, clean the surface of the green body, spray the bottom glaze, and design pattern printing with rich colors on the bottom glaze by inkjet printing; here it needs to be explained, if the following steps The used glass-ceramic frit has a decorative effect after burning, and the printing step can be omitted.

[0033] C. Apply glass-ceramic frit: Spread transparent glass-ceramic frit on the surface of the body in step B and spray a layer of polyurethane fixative. The thickness...

Embodiment 2

[0059] A method for preparing a glass-ceramic composite plate with an ice crystal effect by firing once, comprising the following steps:

[0060] A. Green body stamping and forming: After the green body powder (fineness is 100 degrees) and micropowder powder (fineness is 100 degrees) are layered, punched into a green body with a bottom blank layer and a micropowder layer, wherein the micropowder layer The thickness is 1 / 3 of the bottom base layer thickness, dry;

[0061] B. Glaze printing: After drying the green body in step A, clean the surface of the green body, spray the bottom glaze, and design pattern printing with rich colors on the bottom glaze by roller printing; The glass-ceramic frit has a decorative effect after firing, and the printing step can be omitted.

[0062] C, applying glass-ceramic frit: spread frit particles (buy from Zibo Huaci Glaze Co., Ltd., 80 orders) with ice crystal effect on the body surface of step B and spray one deck of polyurethane fixing age...

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Abstract

The invention discloses a preparation method of a one-step sintered glass-ceramic composite board. The preparation method comprises the following steps of A, carrying out impact molding on a green body; B, glazing and printing, namely after drying the green body obtained in the step A, cleaning the surface of the green body, spraying a ground coat, and printing in a way of inkjet printing, roller printing, silk screen printing or a combination of several selected from all the ways, wherein the ground coat contains 3-5% of pyrophyllite; C, applying glass-ceramic frits, namely spreading the glass-ceramic frits on the surface of the green body obtained in the step B, and spraying a layer of polyurethane fixing agent, wherein the polyurethane fixing agent is prepared from the following components in percentage by mass: 3.8-4.8% of nonionic polyurethane associative thickener, 1.8-2.4% of attapulgite clay, 0.6-1% of defoaming agent, 0.6-1.6% of dispersing agent and the balance of solvent; D, sintering, namely sintering in a kiln at the temperature of 1150-1250 DEG C; and E, polishing to obtain a finished product of the glass-ceramic composite board. By using the method, adverse effects caused by the adsorption effect of a preheating zone of the kiln to the glass-ceramic frits can be avoided, and the rate of finished products can be increased.

Description

technical field [0001] The invention relates to the technical field of building ceramics, in particular to a preparation method of a once-firing glass-ceramic composite plate. Background technique [0002] The glass-ceramic composite board is a new type of composite board that combines a layer of glass-ceramic on the surface of the ceramic tile. Because the surface is a glass-ceramic layer, it is completely antifouling and easy to clean and maintain. At present, the glass-ceramic frit is mainly covered with a certain thickness of glass-ceramic frit (particle size is 15-150 mesh) on the body surface or glaze surface by means of cloth, and a layer of fixing agent is sprayed to fix the particles on the surface of the body. The surface of the green body is reprocessed after firing. The quality of the glass-ceramic frit directly determines the flatness of the brick and the decorative effect of the brick. The fixing agent used in the prior art is only ordinary glue and water. Mix...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/89
Inventor 朱培祺朱丽萍岑永炽张远强刘敏玉
Owner 泰州市海通资产管理有限公司
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