A method for preparing a heat-insulating tile body that can withstand high temperatures of 2000°C

A heat-insulating tile and green body technology, which is applied in the field of thermal protection material preparation, can solve problems such as low strength, poor oxidation resistance, and poor uniformity of the green body, and achieve the effect of improving the stability of ceramics and improving the sintering temperature

Active Publication Date: 2022-05-03
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of insufficient heat-resistant temperature, low strength, poor oxidation resistance, complicated after-treatment, and poor uniformity of the body of the rigid heat-insulating tile, and provide a heat-insulating tile blank that can withstand high temperatures of 2000°C The preparation method of the body; the prepared rigid insulation tile body has the advantages of high body strength, uniform composition, high heat resistance temperature, good oxidation resistance, and simple preparation and operation.

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
  • A method for preparing a heat-insulating tile body that can withstand high temperatures of 2000°C

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for preparing a heat-insulating tile body that can withstand a high temperature of 2000°C, the specific steps are as follows:

[0038] Step 1. After impregnating the fiber in sol A, take it out and vacuum dry it (vacuum degree is 0.08MPa, drying temperature is 180°C), then transfer it to sol B, take it out after impregnating it and dry it in vacuum, and then transfer it to a hydrophobic tank for hydrophobic treatment, and then transferred to solution A for immersion, taken out and vacuum dried, then transferred to solution B for immersion, taken out and vacuum dried, then transferred to solution C for immersion, taken out and vacuum dried to obtain pretreated fibers;

[0039] The fibers are carbon fibers;

[0040] The sol A is an aluminum sol solution with a mass fraction of 15%;

[0041] The sol B is a zirconium sol solution with a mass fraction of 15%;

[0042] The solution A is a polyborazane solution; the solution B is a polycarbosilane solution; the solu...

Embodiment 2

[0057] A method for preparing a heat-insulating tile body that can withstand a high temperature of 2000°C, the specific steps are as follows:

[0058] Step 1. After impregnating the fiber in sol A, take it out and dry it in vacuum (vacuum degree is 0.09MPa, drying temperature is 120°C), then transfer it to sol B, take it out after impregnating it and dry it in vacuum, and then transfer it to the water-repellent tank for water-repellent treatment, and then transferred to solution A for immersion, taken out and vacuum dried, then transferred to solution B for immersion, taken out and vacuum dried, then transferred to solution C for immersion, taken out and vacuum dried to obtain pretreated fibers;

[0059] Described fiber is the composition of zirconia fiber, zirconium carbide fiber, silicon carbide fiber, boron nitride fiber, silicon nitride fiber, and its mass ratio is 6:1:1:1:1;

[0060] The sol A is an aluminum sol solution with a mass fraction of 5%;

[0061] The sol B is ...

Embodiment 3

[0076] A method for preparing a heat-insulating tile body that can withstand a high temperature of 2000°C, the specific steps are as follows:

[0077] Step 1. After impregnating the fiber in sol A, take it out and dry it in vacuum (vacuum degree is 0.10 MPa, drying temperature is 80°C), then transfer it to sol B, take it out after impregnating it and dry it in vacuum, and then transfer it to a hydrophobic tank for hydrophobic treatment, and then transferred to solution A for immersion, taken out and vacuum dried, then transferred to solution B for immersion, taken out and vacuum dried, then transferred to solution C for immersion, taken out and vacuum dried to obtain pretreated fibers;

[0078] Described fiber is the composition of carbon fiber, zirconium carbide fiber, silicon carbide fiber, boron nitride fiber, and its mass ratio is respectively 4:2:1:1;

[0079] The sol A is an aluminum sol solution with a mass fraction of 35%;

[0080] The sol B is a zirconium sol solutio...

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
densityaaaaaaaaaa
compressive strengthaaaaaaaaaa
densityaaaaaaaaaa
Login to view more

Abstract

The invention proposes a method for preparing a heat-insulating tile body that can withstand a high temperature of 2000°C, which belongs to the technical field of heat protection material preparation. The fibers are soaked in sol A and then taken out and vacuum-dried, then transferred to sol B and taken out after dipping and vacuum-dried, transferred to a hydrophobic tank for hydrophobic treatment, transferred to solution A for immersion, taken out and vacuum-dried, transferred to solution B for immersion, taken out and vacuum-dried, transferred to solution C for immersion, taken out and vacuum-dried to obtain pretreated fiber; adding the pretreated fiber, auxiliary agent A, auxiliary agent B, and auxiliary agent C into water and stirring and dispersing evenly to obtain a slurry; adding the slurry to a molding tool for filtering and molding to obtain a wet billet; Take out the wet billet from the forming tooling, put it into the fixed tooling, transfer it to the oven for drying, and obtain a dry billet; under the protection of an inert gas, heat up the dry billet for sintering, and then cool it naturally to room temperature to obtain a sintered insulation tile body.

Description

technical field [0001] The invention relates to a method for preparing a heat-insulating tile body that can withstand a high temperature of 2000°C, and belongs to the technical field of heat protection material preparation. Background technique [0002] Rigid heat insulation tile is an excellent thermal protection material, which has the advantages of high temperature resistance, low density, high strength, good air erosion resistance, good heat insulation performance, and reusability. [0003] The use temperature and environment of rigid thermal insulation tiles are essentially related to the raw materials used, and are also the basic material guarantee for the production of rigid thermal insulation tiles with excellent performance. At present, the rigid insulation tile made of carbon fiber as the main material is the mainstream application product in the temperature range of 2000 °C, but this type of product has low strength, poor oxidation resistance, uneven distribution ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B35/628
CPCC04B35/66C04B35/62852C04B35/62855C04B35/62844C04B2235/5236C04B2235/5248C04B2235/524C04B2235/5244C04B2235/3225C04B2235/3229C04B2235/3227C04B2235/483C04B2235/6562C04B2235/9607C04B2235/77C04B2235/96
Inventor 刘晓波孔德隆安烜熜张凡张杨李文静杨洁颖张昊
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap