Supercharge Your Innovation With Domain-Expert AI Agents!

Microporous aluminum oxide burning plate and preparation method thereof

A technology of alumina and setter, applied in the field of refractory material preparation and ceramics, can solve the problem of inability to prepare high-purity, microporous alumina setter, unable to meet the requirements of high-purity, porous alumina setter, and the inability of the production process. It can meet the problems of preparing microporous materials, and achieve the effect of ensuring the uniformity of pores, promoting sintering, and reducing the sintering temperature.

Inactive Publication Date: 2010-04-07
SINOSTEEL LUOYANG INST OF REFRACTORIES RES
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this method cannot meet the requirements of high-purity, porous alumina setter
Invention patent "Method for preparing porous alumina ceramic support with sol as an auxiliary agent" (application number: 200810232268.2). This method uses the nano-effect of sol to significantly reduce the sintering temperature of porous materials, but its manufacturing process cannot meet the requirements of preparing microporous materials. need
[0007] Based on the above analysis, the traditional method of clay combination and adding a burning accelerator cannot prepare high-purity, microporous alumina setters.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Microporous aluminum oxide burning plate and preparation method thereof
  • Microporous aluminum oxide burning plate and preparation method thereof
  • Microporous aluminum oxide burning plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The raw material components and the mass percentage of each component are: 80% of α-alumina with a particle size of less than 1um, 3% of polyacrylamide, 15% of boehmite, and 2% of hexamethylphosphoric triamide.;

[0026] Its process steps are as follows:

[0027] 1) Add α-alumina, polyacrylamide and boehmite into the polyurethane mixing tank in proportion and add water to make a slurry with a solid content of 60% and blend for 5 hours;

[0028] 2) Add hexamethylphosphoric triamide to the slurry mixed in step 1 and stir for 30 minutes with a high-speed mixer (1000 rpm);

[0029] 3) Inject the slurry prepared in step 2 into a plastic mold, scrape the upper surface of the slurry, put it into an environment with a temperature of 40 degrees and a temperature of 70%, and maintain it for 10 hours to fully solidify;

[0030] 4) demoulding the solidified green body and putting it into an oven at 110°C to fully dry it;

[0031] 5) Put the dried green body into an electric furna...

Embodiment 2

[0036] The raw material components and the mass percentage of each component are: 85% of α-alumina with a particle size of less than 1um, 4% of polyacrylamide, 10% of boehmite, and 1% of hexamethylphosphoric triamide;

[0037] Its process steps are as follows:

[0038] 1) Add α-alumina, water-based resin polyacrylamide, and boehmite into the mixing tank according to the proportion, and add water to make a slurry with a solid content of 60% and blend for 3 hours;

[0039] 2) Add hexamethylphosphoric triamide to the slurry mixed in step 1 and stir with a high-speed mixer for 30 minutes;

[0040] 3) Inject the slurry prepared in step 2 into a plastic mold, scrape the upper surface of the slurry, put it into an environment with a temperature of 40 degrees and a temperature of 70%, and maintain it for 10 hours to fully solidify;

[0041] 4) demoulding the solidified green body and putting it into an oven at 110°C to fully dry it;

[0042] 5) Put the dried green body into an elect...

Embodiment 3

[0046] The raw material components and the mass percentage of each component are: 82% of α-alumina with a particle size of less than 1um, 5% of polyacrylamide, 11.5% of boehmite, and 1.5% of hexamethylphosphoric triamide.;

[0047] Its process steps are as follows:

[0048]1) Add alumina, water-based resin polyacrylamide, and boehmite to the mixing tank according to the proportion, and add water to make a slurry with a solid content of 60% and blend for 5 hours;

[0049] 2) Add hexamethylphosphoric triamide to the slurry mixed in step 1 and stir with a high-speed mixer for 30 minutes;

[0050] 3) Inject the slurry prepared in step 2 into a plastic mold, scrape the upper surface of the slurry, put it into an environment with a temperature of 40 degrees and a temperature of 70%, and maintain it for 10 hours to fully solidify;

[0051] 4) demoulding the solidified green body and putting it into an oven at 110°C to fully dry it;

[0052] 5) Put the dried green body into an elect...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of ceramic burning plates and provides a microporous aluminum oxide burning plate and a preparation method thereof. The burning plate comprises the following components in percentage by mass: 80 t0 85 percent of alpha magnesium oxide with a grain size less than 1mum, 10 to 15 percent of bodhmite with a crystal grain size between 10 and 20nm, 3 to 5 percent of water borne resin polyacrylamide and 1 to 2 percent of hexamethylphosphoric triamide. The water borne resin serving as a pore forming agent of the material can ensure the uniform dispersion of the pore forming agent in the material and the formation of micro pores; the bodhmite and hexamethylphosphoric triamide, which serve as a gel medium, can obviously reduce the burnt temperature of the aluminum oxide material, and the self-combination system of the aluminum oxide can ensure the purity of the material, and the pollution of a multiphase system on burning products is avoided; and the highly purified aluminum oxide burning plate with a porosity of 18 to 20 percent, a pore size of 2mm and an anti-bending strength at the normal temperature of 50MPa can meet double requirements of ceramic blanks in the ceramic industry on rubber discharging and burning.

Description

Technical field: [0001] The invention belongs to the technical field of preparation of ceramics and refractory materials, and relates to a microporous alumina setter and a preparation method thereof. The prepared microporous alumina setter is suitable for electronic ceramics, high-temperature ceramics and other ceramic products that need debinding during firing. Background technique: [0002] High-temperature alumina products have excellent high-temperature chemical stability and are widely used in ceramic products for firing. In some functional ceramic fields, in order to improve the plasticity of ceramic powder, the method of adding organic matter is mainly used; in order to facilitate the discharge of these organic matter during firing, alumina products that are responsible for firing must not only have high porosity but also have sufficient High strength to ensure use. Due to the strict requirements on purity, porosity, and strength of such products, domestic users mai...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/66C04B35/10C04B35/624C04B38/00
Inventor 王龙光刘鹏周会俊
Owner SINOSTEEL LUOYANG INST OF REFRACTORIES RES
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com