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A preparation method of one-time fired glass-ceramic composite board

A technology for glass-ceramic and glass-ceramic frit, which is applied in the field of building ceramics, can solve the problems of increasing the moisture content of bricks, affecting the strength of green bodies, and being easily sucked away, and achieves the effects of improving flatness and improving yield.

Active Publication Date: 2016-01-20
金湖县项目服务中心
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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
In addition, if the use of glue fixative is applied to the production of once-fired glass-ceramics composite panels, the glue will penetrate into the glass-ceramic frit layer and continue to penetrate into the powder layer of the green body, making the originally dry powder layer absorb The moisture in the glue will affect the strength of the green body, and it will easily break when it is transported to the kiln, which will increase the moisture content of the brick and cause cracks, and the yield and qualified yield will be greatly reduced.

Method used

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  • A preparation method of one-time fired glass-ceramic composite board
  • A preparation method of one-time fired glass-ceramic composite board
  • A preparation method of one-time fired glass-ceramic composite board

Examples

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preparation example Construction

[0026] Preparation of the bottom glaze: mix kaolin, quartz, potassium feldspar, albite, calcite, talc, dolomite, zinc oxide and zircon powder with a thickness of less than 100 meshes as the bottom glaze raw material, add appropriate amount of water and 0.5% tripolymer Sodium phosphate, 0.3% methyl cellulose, ball milled into the chemical composition of 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 on the 10,000-hole sieve for use.

[0027] 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. The bottom glaze mainly serves as a covering function, so the make-up soil with high whiteness is usually selected, and its expansion and contractio...

Embodiment 1-1

[0031] A method for preparing a once-fired transparent glass-ceramic composite board, comprising the following steps:

[0032] 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 thickness of the bottom layer, dry;

[0033] B. Spray water-repellent: Spray a layer of modified polyvinyl alcohol water-repellent (purchased from Jinan Yuekai Chemical Co., Ltd.) on the surface of the green body;

[0034] C, glazing printing: spray the base glaze on the brick adobe of step B, and can print by inkjet printing;

[0035] D, applying glass-ceramic frit: spread transparent glass-ceramic frit on the surface of the bottom glaze layer of step C and spray a layer of polyurethane fixing agent, the thickness of spreading transparent glass-ceramic frit is 2mm, the...

Embodiment 1-2

[0040] A method for preparing a once-fired transparent glass-ceramic composite board, comprising the following steps:

[0041] A. Green body stamping and forming: After the green body powder (fineness is 150 mesh) and micropowder powder (fineness is 150 mesh) 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 thickness of the bottom layer, dry;

[0042]B. Glaze printing: Spray the base glaze on the green body in step A, and print by one or more combinations of inkjet printing, roller printing, and screen printing;

[0043] C, applying glass-ceramic frit: spread transparent glass-ceramic frit on the surface of the bottom glaze layer in step B and spray a layer of polyurethane fixing agent, the thickness of spreading transparent glass-ceramic frit is 2mm, the amount of fixing agent The dosage is 350-450g / m2;

[0044] The component of every 100kg polyurethane fixative: nonionic poly...

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Abstract

The invention provides a preparation method of a single fired glass ceramic composite board. The preparation method comprises the following steps: A, green body punch forming; B, spraying of a water repellent; C, glazing and printing; D, glass ceramic frit applying, namely distributing and spreading the glass ceramic frits on the surface of a ground coat layer obtained in the step C and spraying a layer of polyurethane fixing agents, wherein the polyurethane fixing agents are prepared from the following components by mass fraction: 6.5-7.5% of nonionic polyurethane associative thickening agent, 3.2-4.4% of white carbon black, 1-1.5% of defoaming agent, 0.3-1.3% of dispersing agents and the balance of solvents; E, firing, namely feeding the green body into a kiln and firing at a temperature of 1200-1300 DEG C; F, polishing and grinding, thus obtaining the finished product of the glass ceramic composite board. The preparation method has the beneficial effects that the adverse effects of a preheating zone of the kiln on the adsorption effects of the glass ceramic frits can be avoided and the product yield can be increased; the effects of the fixing agents on the green body strength can be avoided by using the water repellent in the scheme.

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 Patents(China)
IPC IPC(8): C04B41/89
Inventor 朱培祺朱丽萍刘向阳王燕玲刘仁昌
Owner 金湖县项目服务中心
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