Foamed glass ceramic material for wall and its production process

A technology of microcrystalline foam glass and wall materials, which is applied in the fields of building materials, ceramic material production, clay products, etc., can solve the problems of high price, and achieve the effect of excellent performance, excellent mechanical performance and good performance

Inactive Publication Date: 2004-09-22
NANJING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When made into a thin sheet with a smooth surface, it is mainly used as a decorative veneer material, which is expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: A mixture of glass powder and fly ash accounting for more than 90% by weight of the total weight is the main raw material. The weight percentage of each oxide in its chemical composition is SiO 2 66.24, TiO 2 0.18, Al 2 O 3 6.50, Fe 2 O 3 0.65, FeO0.12, MnO0.01, MgO3.10, CaO9.03, Na 2 O9.36, K 2 O2.81, P2 O 5 0.10, Ignition loss 1.30, with soda ash less than 10%wt of total raw material weight 2 CO 3 , Calcite and wollastonite. The particle size of the raw material components is as described in the previous paragraph of the specification. After being uniformly mixed mechanically, it is press-formed under the condition of a moisture content of 6-8%wt. After drying, it is fired in the kiln. The heating rate in the kiln is 1 to 1.5°C / min. The temperature is lowered to 915-925℃, and the cooling rate is the same as the heating rate. When it reaches 400℃, it will be cooled naturally, and it will be carried out automatically and uniformly in the kiln. Exit the kiln at ar...

Embodiment 2

[0038] Example 2: A mixture of glass powder and fly ash accounting for more than 90% by weight of the total weight. The weight percentage of each oxide in its chemical composition is: SiO 2 65.35, TiO 2 0.24, Al 2 O 3 7.41, Fe 2 O 3 0.62, FeO0.28, MnO0.02, MgO3.0, CaO9.28, Na 2 O9.14, K 2 O2.60, P 2 O 5 0.1. Loss on ignition 1.4. Equipped with soda ash Na which accounts for ≤10%wt of total raw material weight 2 CO 3 , Calcite and wollastonite. The raw material particle size is the same as described in the previous paragraph of the specification. After being uniformly mixed mechanically, press molding, kiln firing, cooling and cutting into finished products as in Example 1.

[0039] The main performance of the product in this embodiment is that the average density of five groups of 15 samples is 750kg / M. 3 , The average compressive strength of the cube is 10.7Mpa.

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PUM

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Abstract

The present invention discloses a nucleated foamed glass wall body material, which is characterized byt aht its composition contains glass powder whose grain size d(0.9) is less than 130 meshes, flyash whose grain size d(0.9) is les than 120 meshes and non-metallic mineral powder whose grain size d(0.9) is less than 230 meshes. Its preparation method includes: grinding glass powder, flyash and non-metallic mineral powder, adding water and mixing them, under the condition of containing water content pressing and forming, drying and kilning, cutting blank and forming to obtain the invented product. It is suitable for industrial production.

Description

1. Technical Field [0001] The invention relates to a wall material, in particular to a microcrystalline foam glass wall material which is between the microcrystalline glass and the foam glass in structure and performance, and a preparation method thereof. 2. Background technology [0002] The research, development and application of various glass-ceramics internationally has a history of at least 50 years. Domestic research and development have started in the 1980s, and some products have now come out. High density of glass-ceramic (≥2700kg / m 3 ), corrosion resistance, wear resistance, non-conductivity, non-magnetic conductivity, high mechanical strength, and are widely used in non-construction industries. When it is made into a thin sheet with a smooth surface, it is mainly used as a decorative veneer material, which is expensive. [0003] Foam glass began to be developed abroad in the 1930s, and introduced and developed in China in the late 1980s. It is made of ground glass pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/076C03C6/00C03C11/00C04B33/13C04B33/135E04C2/02
CPCC04B2235/36C03C11/00C03C3/087C03C11/007C03C3/097C04B33/1352C04B33/13Y02P40/60
Inventor 陈克荣曾家湖陈小明
Owner NANJING UNIV
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