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Blank body of fine porcelain ceramic, preparation method and application thereof

A technology of ceramic body and fine ceramics, which is applied in the field of inorganic non-metallic material production, can solve the problem of high production cost of bathroom products that are not suitable for large plane and large size, and fine ceramics, and achieves small firing shrinkage and firing Deformation rate, product straight and regular, not easy to deform

Active Publication Date: 2010-05-05
LIXIL AS SANITARY MFG (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production cost of this fine pottery ceramic is high, and it is not suitable for making large-scale and large-size bathroom products

Method used

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  • Blank body of fine porcelain ceramic, preparation method and application thereof
  • Blank body of fine porcelain ceramic, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0069] Embodiment 1~3. Preparation fine pottery sanitary ceramic body

[0070] raw material:

[0071] Calcined burnt gem: Al 2 o 3 The weight percentage is 43-48%, the linear shrinkage rate is less than 2.4%, and the 20-1000 degree linear thermal expansion coefficient is 4.4×10 -6 .

[0072] Ceramic waste powder: Obtained after crushing sanitary ceramic waste, and controlling the remaining amount after crushing through a 100-mesh sieve to <3%.

[0073] Quartz sand: SiO in the main mineral quartzite 2 The weight percentage is 97-98%, and the LOI (loss on ignition) is less than 1%.

[0074] Ball clay "The main mineral is kaolinite, containing a small amount of illite, and the impurity minerals are: quartz, lignite, and iron-titanium compounds. This clay is soft clay, with high plasticity, good dispersion, moderate fire resistance, and bonding strength: > 40Mpa. Contains the following chemical weight percentage composition: SiO 2 50-55%, Al 2 o 3 : 23-28%.

[0075] Low-...

Embodiment 4

[0092] Embodiment 4. Preparation fine pottery sanitary ceramics

[0093] raw material:

[0094] Calcined burnt gem: Al 2 o 3 The weight percentage is 43-48%, the linear shrinkage rate is less than 2.4%, and the 20-1000 degree linear thermal expansion coefficient is 4.4×10 -6 .

[0095] Ceramic waste powder: Obtained after crushing sanitary ceramic waste, and controlling the remaining amount after crushing through a 100-mesh sieve to <3%.

[0096] Quartz sand: SiO in the main mineral quartzite 2 The weight percentage is 97-98%, and the LOI (loss on ignition) is less than 1%.

[0097] Ball clay "The main mineral is kaolinite, containing a small amount of illite, and the impurity minerals are: quartz, lignite, and iron-titanium compounds. This clay is soft clay, with high plasticity, good dispersion, moderate fire resistance, and bonding strength: > 40Mpa. Contains the following chemical weight percentage composition: SiO 2 50-55%, Al 2 o 3 : 23-28%.

[0098] Feldspar, ...

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Abstract

The invention relates to a blank body of fine porcelain ceramic, a preparation method and an application thereof. The raw materials of the blank body comprise the following components in the percentage by weight: 30-50% of calcined kaolin with high aluminum, low contraction and low thermal expansion, 10-20% of porcelain waste powder, 10-20% of quartz sand and 20-40% of ball clay. The invention also further discloses fine porcelain ceramic and a preparation method thereof. The fine porcelain ceramic can be used for casting a product with the size greater than 1,000 mm, and the product is flat, straight and regular and is not easy to deform.

Description

technical field [0001] The invention belongs to the technical field of production of inorganic non-metallic materials, and in particular relates to fine pottery ceramic body and its preparation and application. Background technique [0002] As one of the three major materials, ceramic materials are widely used in various fields because of their good acid and alkali resistance, high mechanical strength, excellent surface hardness and high temperature and oxidation resistance. The application of ceramic materials in sanitary ware It has a history of nearly a hundred years, but it is mainly concentrated in porcelain, while the drying shrinkage and firing shrinkage of traditional porcelain sanitary ware are generally 10-13%. The product is easily affected by temperature, particle distribution, moisture content, etc. The difference in the distribution of the shrinkage stress causes the concentration of shrinkage stress, and sanitary products often have internal and external struc...

Claims

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Application Information

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IPC IPC(8): C04B35/185C04B35/622C04B35/63
Inventor 曹琛
Owner LIXIL AS SANITARY MFG (SHANGHAI) CO LTD
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