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Integrally crystallization process microcrystaline glass-ceramic composite brick and its production process

A technology of glass-ceramic ceramics and glass-ceramics, which is applied in the field of building materials, can solve problems such as spotting of finished products, waste of resources, and affecting the excellent rate of finished products.

Inactive Publication Date: 2007-06-06
FOSHAN OCEANO CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this process are: ①The interstitial gas between the glass particles is difficult to be completely eliminated during the sintering process, and the porosity in the glass is high, and porosity defects are prone to appear after grinding and polishing, which affects the high-quality rate of the finished product; ②The sintering process requires strict control, even if Under the best sintering conditions, only 1.0-1.5mm thick dense layer can be obtained on the surface of glass-ceramic; brick deformation, glass-ceramic surface not melting, etc. will lead to increased grinding and polishing, and porosity defects; ③ glass-ceramics Particles are easily polluted during water quenching, drying, crushing, grading, storage and transportation, etc., resulting in spots and impurities in the finished product; Add ZnO, H 3 BO 3 、BaCO 3 These raw materials do not directly participate in crystallization and enter the required crystal phase, and the price is very high, resulting in high cost of glass-ceramics and waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The overall crystallization glass-ceramic composite brick of the present invention comprises a glass-ceramic layer and a ceramic blank layer, and its production method comprises the following production steps:

[0018] First prepare the glass-ceramic layer, according to chemical composition: SiO 2 61.62%, Al 2 o 3 6.16%, CaO25.43%, MgO1.53%, (Na 2 O+K 2 O) 5.26%, plus clarifying agent Sb 2 o 3 0.3%, select the corresponding quartz, feldspar, heavy calcium, dolomite, sodium nitrate, sodium carbonate, antimony trioxide below 200 mesh, weigh them in proportion, mix them evenly, and melt them in a 5 kg electric furnace crucible at a melting temperature of 1500 °C , keep warm for 1.5 hours. Pour the melt into a cast iron mould, and after rolling, place it in an annealing furnace at 760°C for 10 minutes, then cool and anneal naturally with the furnace to obtain a non-decrystallized transparent glass mother board;

[0019] Then according to the chemical composition of t...

Embodiment 2

[0023] The production method of the glass-ceramic composite brick is as follows: first prepare the glass-ceramic layer, according to the chemical composition: SiO 2 59.0%, Al 2 o 3 8.35%, CaO21.95%, MgO2.34%, (Na 2 O+K 2 O)6.10%, ZnO1.42%, B 2 o 3 0.84%, plus clarifying agent Sb 2 o 3 0.4%, colorant MnO 2 1.2%. Select corresponding quartz, feldspar, heavy calcium, calcined kaolin, dolomite, sodium nitrate, sodium carbonate, zinc oxide, boric acid, antimony trioxide, and manganese oxide below 180 mesh to weigh in proportion, and mix them uniformly to form a batch. Put the above batch materials into a glass melting furnace for melting, the melting temperature is 1500°C±10°C, after clarification, it is shaped by a calender, with a thickness of 5mm±0.3mm, annealed and cut in an annealing kiln, and it is made into a transparent brown color without crystallization glass mother board.

[0024] According to the chemical composition and manufacturing method of the ceramic bod...

Embodiment 3

[0026] Prepare a glass-ceramic mother board according to the steps of Example 1, except that 0.5% CoO is added to the crystallite formula to obtain an uncrystallized transparent dark blue glass mother board.

[0027] According to embodiment 1 step, produce ceramic biscuit brick.

[0028] Fired in a roller kiln according to Example 1, the semi-finished product is processed to produce a light gray glass-ceramic-ceramic composite solid-color brick, which is similar to a ceramic brick but has a glass texture.

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Abstract

The present invention discloses integral crystallization process of microcrystalline glass-ceramic composite brick and its production process. The brick includes microcrystalline glass layer and ceramic layer. The present invention features that by means of the available glass forming process, the microcrystalline glass is first produced into transparent glass mother board, then set on unglazed ceramic base and sintered in the roller kiln into semi-finished product through nucleation and crystallization of microcrystalline glass and the compounding with ceramic. The semi-finished product is strickled off, ground, polished, edge ground and sorted to form the microcrystalline glass-ceramic composite brick product. Compared with sintering process, the present invention has lowered cost, less faults and high product quality.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a novel integral crystallization glass-ceramic-ceramic composite wall and floor tile and a production method thereof. Background technique [0002] At present, there are two known active production technologies of glass-ceramics for architectural decoration, namely, the sintering method and the calendering method. Among them, the sintering method is the most widely used, and the technology is relatively mature. Now the glass-ceramic composite panels produced by ceramic manufacturers also use the sintering method. The calendering method is currently in the ascendant, and the formula and technology are not yet very mature, and only a few domestic enterprises are producing it. The production of glass-ceramic composite panels by calendering is still blank at present, and no manufacturers are producing them. As we all know, the production process of sintered glass-cerami...

Claims

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Application Information

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IPC IPC(8): C03C10/14C04B35/14C04B37/04
CPCC03C10/00C03C3/085C03C3/083C03C3/087
Inventor 孙树江史杰
Owner FOSHAN OCEANO CERAMICS
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