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High-performance foamed ceramics and its preparation method and application

A high-performance technology of foamed ceramics, applied in the field of architectural ceramics, can solve the problems of poor thermal shock resistance of foamed ceramics and damage to foamed ceramics, and achieve the goal of increasing processing performance, increasing resistance, and improving thermal shock resistance Effect

Active Publication Date: 2022-03-22
FOSHAN OCEANO CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of cooling pore structure, because it is easy to form thermal stress concentration during the cooling process, destroys the pore structure of foamed ceramics; and the phenomenon of thermal stress concentration that is easy to form during the cooling process of foamed ceramics will also appear in In the severe temperature change of foamed ceramics, it is shown that the thermal shock resistance of foamed ceramics is weak

Method used

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Examples

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preparation example Construction

[0047] The embodiment of the present invention provides a method of preparing the above high performance foaming ceramic, including:

[0048] The powder from the preparation of the first lightweight thermal insulation layer is prepared and the powder of the preparation of the second lightweight thermal insulation layer is branched in turn.

[0049] The preparation method provided by the present invention is to avoid the heat-resistant impact layer (dense layer) and the lightweight thermal insulation layer (foaming layer) at high temperatures without match, and the two layers of lightweight insulation layers are disposed on resistance. The relative two sides of the thermal impact layer also increase the resistance of foam ceramics on thermal stress when cooling, and ultimately achieve the purpose of improving heat resistance.

[0050] The preparation method is specifically:

[0051] S1, first of the preparation of the raw material of the lightweight insulation layer and the prepara...

Embodiment 1

[0064] The high performance foaming ceramic provided in this embodiment, the preparation method thereof is as follows:

[0065] (1) The heat-resistant impact layer and the material preparation of the lightweight insulation layer. The raw materials of the heat-resistant impact layer are arranged in the following columns: 50 pieces of polishing waste slag, 8 powder, clay 15 powder, quartz sand 8 powder, long stone mineral 8 powder, 8 copies of silica gray, 3 copies of talc. The chemical composition of raw materials includes: 68.3% SIO according to quality percentage 2 16.4% Al 2 O 3 0.3% Fe 2 O 3 0.2% TIO 2 , 3.8% CaO + MgO, 5.4% K 2 O + NA 2 O, the burning is 5.6%.

[0066] The raw material of the lightweight insulation layer is substantially the same as the feedstock of the above-mentioned heat-resistant impact layer, and the only difference is that 0.8 parts of the foaming agent, the blowing agent is silicon carbide.

[0067] (2) The raw material of the heat-resistant impact laye...

Embodiment 2

[0073] The high performance foaming ceramic provided in this embodiment, the preparation method thereof is as follows:

[0074] (1) The heat-resistant impact layer and the material preparation of the lightweight insulation layer. The raw materials of the heat-resistant impact layer according to the mass parts, 70 pieces of polishing waste, 3 glass powder, 12 clay, 5 pieces of quartz sand, 6 graylaws, 3 silicahydrate, talc 1 copy; the chemical composition of raw materials, including: 71.3% SiO according to quality 2 15.4% Al 2 O 3 0.2% Fe 2 O 3 0.1% TIO 2 , 3.2% CaO + MgO, 5.5% K 2 O + NA 2 O, the burning is 4.3%.

[0075] The raw material of the lightweight insulation layer is substantially the same as the feedstock of the above-mentioned heat-resistant impact layer, and the only difference is that the foaming agent is added, and the blowing agent is calcium carbonate.

[0076] (2) The raw material of the heat-resistant impact layer and the lightweight insulation layer is made. Th...

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Abstract

The invention discloses a high-performance foamed ceramic, a preparation method and application thereof, and relates to the technical field of architectural ceramics. The high-performance foamed ceramics include a lightweight thermal insulation layer and a thermal shock-resistant layer. The lightweight thermal insulation layer includes a first lightweight thermal insulation layer and a second lightweight thermal insulation layer. The first lightweight thermal insulation layer and the second lightweight thermal insulation layer are respectively It is arranged on opposite sides of the heat-shock-resistant layer; high-performance foamed ceramics are obtained by stacking the raw materials for the preparation of the light-weight insulation layer and the raw materials for the preparation of the heat-shock-resistant layer and then sintering together. The raw materials for the preparation of the light-weight insulation layer contain a foaming agent. The raw material of the heat shock resistant layer does not contain a blowing agent. The preparation method of the above-mentioned high-performance foamed ceramics includes: the powder for preparing the first light-weight insulation layer, the powder for preparing the heat-shock-resistant layer, and the powder for preparing the second light-weight insulation layer are sequentially piled up and distributed into layers. The material is fired. The prepared high-performance foamed ceramics have good thermal shock resistance.

Description

Technical field [0001] The present invention relates to the field of building ceramics, in particular, to high performance foam ceramics and preparation methods and applications. Background technique [0002] In recent years, with the tightening of environmental protection policies, and a large number of applications such as industrial solid waste such as polishing waste, the wide application of foaming ceramic products has become a trend in solid waste use. [0003] The foam ceramic is mainly decomposed or oxidized in a glass melt at a high temperature or the like by a blowing agent, and a foamed ceramic of the porous structure is formed after cooling. Due to the large amount of consumption of solid waste, as well as a large amount of reflex concrete in the building materials, the foaming ceramics form a large-specific preparation in the construction industry; so the application of foam ceramics in construction, mainly Large specifications with walls - foam ceramic wall panels. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/04C04B33/132C04B33/32C04B35/14C04B35/622C04B35/64C04B38/02E04F13/075E04B2/74
CPCC04B33/04C04B33/132C04B33/32C04B35/14C04B35/62204C04B35/64C04B38/02E04F13/0875E04B2/74E04B2/7403C04B2235/3463C04B2235/3454C04B2235/3445Y02P40/60
Inventor 马超柯善军朱志超田维
Owner FOSHAN OCEANO CERAMICS