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Low-temperature once-fired environment-friendly ceramic

An environmentally friendly and low-temperature technology, applied in the field of ceramics, can solve the problem of high firing cost, achieve the effect of compact structure, improve market competitiveness, and improve mechanical strength

Inactive Publication Date: 2015-04-15
FUJIAN DEHUA COUNTY YONGDEXIN CERAMIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to overcome the disadvantages of high cost of secondary or tertiary firing of dolomite porcelain in the prior art, and provide a low-temperature primary-fired environmentally friendly ceramic

Method used

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  • Low-temperature once-fired environment-friendly ceramic
  • Low-temperature once-fired environment-friendly ceramic
  • Low-temperature once-fired environment-friendly ceramic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Low-temperature one-time firing of environmentally friendly ceramics. First, the porcelain clay raw material is formed into a green body, and then paint is painted on the green body as required, and then transparent glaze is applied on the paint, and decals are applied. Finally, firing is carried out at 1150-1190°C.

[0015] The chemical composition weight percentage of china clay is as follows: SiO 2 69.5%, Al 2 o 3 12%, Na 2 O 4%, K 2 O 1.2%, CaO 5.3%, B 2 o 3 6%, MgO 2%;

[0016] The chemical composition weight percentage of transparent glaze is as follows: SiO 2 8%, Na 2 O 4%, B 2 o 3 69%, Li 2 O 2%, SrO 0.8%, Al 2 o 3 7%, ZnO 2.8%, CaO 6%, K 2 O 0.4%.

[0017] The strength, water absorption and other performance indicators of the fired product are shown in Table 1.

Embodiment 2

[0019] Low-temperature one-time firing of environmentally friendly ceramics. First, the porcelain clay raw material is formed into a green body, then paint is painted on the green body, and then transparent glaze is applied on the paint, and then decals are applied. Finally, firing is carried out at 1150-1190°C.

[0020] The chemical composition weight percentage of described china clay is as follows: SiO 2 70%, Al 2 o 3 10%, Na 2 O 5%, K 2 O 1%, CaO 5.5%, B 2 o 3 5.5%, MgO 3%;

[0021] The chemical composition weight percentage of described transparent glaze is as follows: SiO 2 10%, Na 2 O 3%, B 2 o 3 70%, Li 2 O1.5%, SrO 1%, Al 2 o 3 6%, ZnO 3%, CaO 5%, K 2 O 0.5%.

[0022] The strength, water absorption and other performance indicators of the fired product are shown in Table 1.

[0023] Table 1 Product performance index after firing

[0024]

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Abstract

The invention relates to a low-temperature once-fired environment-friendly ceramic which is prepared by the following steps: forming porcelain clay raw materials into a green body, painting pigments on the green body, applying transparent glaze on the pigments, attaching pattern paper, and finally, firing at 1150-1190 DEG C. The porcelain clay comprises the following chemical components in percentage by weight: 68-72% of SiO2, 8-12% of Al2O3, 4-6% of Na2O, 0.8-1.2% of K2O, 5-6% of CaO, 5-6% of B2O3 and 2-4% of MgO. The low-temperature once-firing can greatly lower the energy consumption by at least 40% as compared with twice-firing, thereby greatly lowering the production cost and enhancing the market competition capacity of the product.

Description

technical field [0001] The invention relates to the technical field of ceramics. Background technique [0002] Dolomite porcelain is in a semi-sintered state, and when the product is not in use, it can be restored to clay after treatment, so it is an environmentally friendly ceramic. However, because dolomite is the main raw material of dolomite porcelain, it decomposes during firing to produce a large amount of gas, which affects the quality of the glaze layer. Therefore, the secondary firing process is adopted, and the product cost remains high; at the same time, due to the loose structure of the product , Low strength, high water absorption, resulting in short service life of the product, affecting the use of the product and limiting its development. Contents of the invention [0003] The main purpose of the present invention is to overcome the disadvantage of high cost of secondary or tertiary firing of dolomite porcelain in the prior art, and provide a low-temperatur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13C04B41/86
Inventor 郭山玉
Owner FUJIAN DEHUA COUNTY YONGDEXIN CERAMIC