Preparation method of single 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.
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Embodiment 1-1
[0028] A method for preparing a once-fired transparent glass-ceramic composite board, comprising the following steps:
[0029] 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;
[0030] B. Spray water-repellent: Spray a layer of water-repellent layer on the surface of the green body, which is modified polyvinyl alcohol water-repellent (purchased from Jinan Yuekai Chemical Co., Ltd.);
[0031] C. Apply glass-ceramic frit: Spread transparent glass-ceramic frit on the surface of the hydrophobic layer in step B and spray a layer of polyurethane fixative. The thickness of the transparent glass-ceramic frit spread is 2mm, and the amount of fixative 350-450g / m2, such as figure 1 , the adobe made through the steps A, B, ...
Embodiment 1-2
[0036] A method for preparing a once-fired transparent glass-ceramic composite board, comprising the following steps:
[0037] 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;
[0038] B. Apply glass-ceramic frit: spread transparent glass-ceramic frit on the surface of the body in step A and spray a layer of polyurethane fixative, the thickness of the transparent glass-ceramic frit spread is 2mm, and the amount of fixative is 350-450g / m2;
[0039] The component of every 100kg polyurethane fixative: nonionic polyurethane associative thickener (Nae Woi Korea., Ltd. company, model HIRESOL85) 7.0kg, white carbon black 3.6kg, polyether type GPE defoamer (from Hangzhou Phil Chemical Industry Co., Ltd. purchases)...
Embodiment 2
[0068] A method for preparing a glass-ceramic composite plate with an ice crystal effect by firing once, comprising the following steps:
[0069] A. Green body stamping and forming: After the green body powder (fineness is 70 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;
[0070] 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;
[0071] C. Apply glass-ceramic frit: spread high-temperature transparent frit particles (purchased from Zibo Huaci Glaze Co., Ltd., 90 mesh) on the surface of the hydrophobic layer in step B and spray a layer of polyurethane fixative to spread high-temperature transparent The thickness of the glass-ceramic frit is 2mm, and the thickness of the...
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