Method for preparing carbon-carbon composite material thermal insulation cylinder from soft felt

A technology of carbon-carbon composite material and insulation cylinder, which is applied in the field of insulation cylinder preparation, can solve the problems of high cost and long time, and achieve the effects of long service life, cost saving and shortened production cycle

Inactive Publication Date: 2016-06-29
AEROSPACE RUITIAN CARBON MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation method of the conventional carbon-carbon composite insulation cylinder has defects such as high cost and long time.

Method used

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  • Method for preparing carbon-carbon composite material thermal insulation cylinder from soft felt
  • Method for preparing carbon-carbon composite material thermal insulation cylinder from soft felt

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] (1) Select 5mm thick carbon fiber soft felt and 1mm thick flexible graphite paper for high temperature treatment at 1500°C, the volume density of carbon fiber soft felt is 0.14g / cm 3 .

[0027] (2) The solid content of 45% and the viscosity of phenolic resin of 10mpa.s are sprayed on both sides of the soft felt and one side of the graphite paper respectively. The surface is evenly sprayed and the amount of resin sprayed is 8kg.

[0028] (3) if figure 1 As shown, the resin-sprayed soft felt and flexible graphite paper are respectively wound and formed on the graphite mandrel. The flexible graphite paper is only wound on the innermost and outermost layers of the product, and the soft felt is wound on 10 layers. .

[0029] (4) if figure 2 As shown, put the coiled insulation cylinder into an oven for curing treatment. During the curing process, use a vacuum bag to seal the product and keep it in a vacuum state. The curing temperature is 160°C and the curing time is 4 ho...

example 2

[0033] (1) Select 10mm thick carbon fiber soft felt and 1mm thick flexible graphite paper for high temperature treatment at 1500°C, and the volume density of carbon fiber soft felt is 0.14g / cm 3 .

[0034] (2) The solid content of 45% and the viscosity of 10mpa.s phenolic resin are sprayed on both sides of the soft felt and one side of the graphite paper respectively. The surface is evenly sprayed, and the amount of resin sprayed is 15kg.

[0035] (3) if figure 1 As shown, the resin-sprayed soft felt and flexible graphite paper are respectively wound and formed on the graphite mandrel. The flexible graphite paper is only wound on the innermost and outermost layers of the product, and the soft felt is wound on 5 layers. .

[0036] (4) if figure 2 As shown, put the wound insulation cylinder into an oven for curing treatment. During the curing process, use a vacuum bag to seal the product and keep it in a vacuum state. The curing temperature is 180°C and the curing time is 2 ...

example 3

[0040] (1) Select 12mm thick carbon fiber soft felt and 1mm thick flexible graphite paper for high temperature treatment at 2000°C, and the volume density of carbon fiber soft felt is 0.15g / cm 3 .

[0041] (2) The solid content of 45% and the viscosity of 10mpa.s phenolic resin are sprayed on both sides of the soft felt and one side of the graphite paper respectively. The surface is evenly sprayed, and the amount of resin sprayed is 30kg.

[0042] (3) if figure 1 As shown, the resin-sprayed soft felt and flexible graphite paper are respectively wound and formed on the graphite mandrel. The flexible graphite paper is only wound on the innermost and outermost layers of the product, and the soft felt is wound on 5 layers. .

[0043] (4) if figure 2 As shown, put the wound insulation cylinder into an oven for curing treatment. During the curing process, use a vacuum bag to seal the product and keep it in a vacuum state. The curing temperature is 180°C and the curing time is 2 ...

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Abstract

The invention provides a method for preparing a carbon-carbon composite material thermal insulation cylinder from a soft felt. The method comprises 1, selecting a carbon fiber soft felt and a flexible graphite paper and carrying out high temperature treatment, 2, respectively spray-coating two surfaces of the soft felt and a single surface of the flexible graphite paper with resin, 3, enwinding the soft felt and flexible graphite paper spray-coated with the resin on a graphite core mold, 4, putting the enwound product into an oven and carrying out curing, wherein in curing, the product is sealed through a vacuum pocket and is subjected to vacuum-pumping curing molding, and 5, carrying out carbonization and high temperature treatment on the cured product. The method can be operated simply and has a low cost, a short period and good integrity.

Description

technical field [0001] The invention relates to a method for preparing a thermal insulation cylinder, in particular to a method for preparing a carbon-carbon composite material thermal insulation cylinder by using soft felt. Background technique [0002] Carbon-carbon composite insulation cylinders are widely used in high-temperature sintering furnaces and other high-temperature industrial equipment, and their performance and service life play a key role in the energy consumption, cost control, and product quality of high-temperature industrial equipment. Insulation cylinder products are widely used in high-temperature sintering furnaces, among which high-temperature sintering furnaces have high requirements on the density uniformity and thermal conductivity of insulation cylinder products. However, the conventional method for preparing a carbon-carbon composite insulation cylinder has defects such as high cost and long time. Contents of the invention [0003] The purpose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/83
Inventor 杨村林姜召阳韩钢陈小飞崔树永张荣超
Owner AEROSPACE RUITIAN CARBON MATERIALS CO LTD
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