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One-shot firing glass-ceramic composite board and its manufacturing method

A technology of glass-ceramics and composite boards, which is applied in the field of building ceramics production, can solve the problems of frequent adjustment of the once-fired glass-ceramic composite board process, strict requirements on raw material stability, and changes in green body raw materials, so as to reduce debugging frequency and The effect of shortening the debugging cycle and firing cycle and increasing the matching degree

Active Publication Date: 2014-10-22
FOSHAN SHI WAN YING BRAND CERAMICS CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in a relatively strict requirement for the stability of raw materials in the primary firing process, and in the published patent documents, the scope of the formula is also particularly narrow
However, at present, the standardization of domestic ceramic raw materials is poor, and the raw materials of the green body are frequently changed.
Different origins, or even different batches of raw materials from the same origin have certain differences in composition and performance, which makes the process adjustment of one-time fired glass-ceramic composite panels more frequent

Method used

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  • One-shot firing glass-ceramic composite board and its manufacturing method
  • One-shot firing glass-ceramic composite board and its manufacturing method
  • One-shot firing glass-ceramic composite board and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Refer to attached figure 2 The cross-sectional schematic diagram of the final product is selected from the invention patent No. 201110219027.6, which is disclosed in Example 1. The base blank formula and the frit formula are prepared for implementation 1. It should be noted here that the above is only an exemplary description, and other bottom blank formulations and frit formulations in the prior art can also realize the present invention.

[0034] Feldspar, clay, kaolin and other raw ores are used for batching in proportion. After ball milling, iron removal, and spray granulation, the weight percentage of each chemical component is: SiO 2 70%~73%, Al 2 o 3 20%~22%, CaO0.8%~1%, MgO2%~3%, K 2 O2.5%~3.0% and Na 2 O1% to 2% ceramic brick powder is used as the raw material for the green body layer. Among them, the feldspar is produced in the Gao'an area of ​​Jiangxi, and the clay is produced in Zengcheng, Guangdong.

[0035] The percentage of selected chemical compon...

Embodiment 2

[0046] Select and implement 1, comparative example 1 different batches of bottom blank raw materials, wherein feldspar is produced in Qingyuan, Guangdong, and clay is produced in Dongguan, Guangdong, and the ingredients are carried out according to the original proportion, but the iron in ball milling and spray granulation are obtained in Example 1. The chemical composition is slightly different, where SiO 2 67%~68%, Al 2 o 3 21%~23%, CaO0.8%~1.0%, MgO2.0%~3%, K 2 O3.5%~5.0% and Na 2 O2% ~ 3%.

[0047] The rest of the process is the same as in Implementation 1.

[0048] The rate of excellent products is 88%. Among the remaining 12% of products, 7% of the surface flatness is not up to standard, and 5% of other defects.

Embodiment 3

[0058] Refer to attached image 3 . In this embodiment, we press and form the green body through a mold with concave-convex patterns, so that the surface of the micropowder layer has concave-convex patterns, and the printing layer undulates with the concave-convex patterns of the micropowder layer. In addition, the chemical composition of the bottom base layer powder is SiO 2 68~73%, Al 2 o 3 17~23%, Fe 2 o 3 0.5~1%, TiO≤0.5, CaO0.8~1.2%, MgO≤2.5%, K 2 O≤2.5% and Na 2 O1% ~ 3%, and the loss on ignition of green body powder ≤ 5%.

[0059] The thickness of the micropowder layer is 1 / 3 of the thickness of the bottom base layer, and the raw materials are proportioned according to the volume expansion coefficient at 700°C of 1.02 to 1.04 times that of the bottom base layer.

[0060] In the present embodiment, the chemical composition of the micropowder layer powder is SiO 2 62~67%, Al 2 o 3 18~22%, Fe 2 o 3 0.1~0.5%, TiO≤0.5, CaO1.5~3%, MgO≤2.5%, K 2 O and Na 2 O5% ~...

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Abstract

The invention provides a one-time sintering glass-ceramic composite board and a preparation method of the one-time sintering glass-ceramic composite board, and belongs to the technical field of architectural ceramic production. The one-time sintering glass-ceramic composite board sequentially comprises a green body layer, a micro powder layer, a printing layer and a glass-ceramic layer from bottom to top. The micro powder layer is formed by stamping with the green body layer or spraying ball-milling slurry on the green body layer, the particle size of punch forming powder is smaller than or equal to 150 meshes, slurry used for spraying the ball-milling slurry is 325 meshes and screen residue is smaller than or equal to 0.3%, the expansion / shrinkage coefficient in the process of sintering the micro powder layer is between the expansion / shrinkage coefficient of the green body layer and the expansion / shrinkage coefficient of the glass-ceramic layer. According to the technical scheme, the problems of green body flatness defects caused by stress stretching and mismatching of the expansion / shrinkage coefficient of the green body layer and the expansion / shrinkage coefficient of the glass ceramic layer in the process of sintering can be solved. The matching rate of glass-ceramic clinkers for one-time sintering and green body raw materials is increased, the application range of the one-time sintering glass-ceramic composite board is increased, the influence on the superior product rate of products caused by instability of the green body raw materials is reduced, debugging frequency and debugging cycle are reduced, and therefore production is more stable.

Description

technical field [0001] The invention relates to a once-fired glass-ceramic composite board and a manufacturing method thereof, belonging to the technical field of building ceramic production. Background technique [0002] Glass-ceramic composite board is also called composite micro-ceramic stone. Composite micro-crystalline stone is a new type of composite plate that combines a layer of glass-ceramic on the surface of ceramic vitrified tiles. Because its surface is glass-ceramic layer, it is completely antifouling and easy to clean and maintain; in addition, it avoids the radioactive hazard of natural stone, and is a non-radioactive product, which is an ideal green building material for decoration. The color is natural, translucent, and never fades, and has the decorative effect of natural jade. It is the first choice for high-end wall and floor tiles. [0003] At present, glass-ceramic composite panels are usually manufactured in the way of secondary firing, that is, the g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B37/04C04B41/89
Inventor 陈贤伟周子松陈国海吴志坚范新晖
Owner FOSHAN SHI WAN YING BRAND CERAMICS CO LTD
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