Preparation method of low-density multi-angle woven carbon fiber hard heat insulating barrel

A carbon fiber, multi-angle technology, applied in the direction of heating/cooling fabrics, non-woven fabrics, acupuncture machines, etc., can solve the problems of frequent replacement of insulation materials, easy penetration of other substances, product corrosion and oxidation, etc., to ensure uniform glue penetration Sexuality, high product purity, and prolonging the service life

Active Publication Date: 2018-12-21
QINGDAO ADVANCED GRAPHITE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the technical problem of soft felt winding heat preservation in the prior art, the service life is short, resulting in frequent replacement of heat insulation materials, for products made by vapor deposition shaping method, the product has large gaps, and it is easy to infiltrate other substances during use, resulting in Product corrosion and oxidation. The purpose of the present invention is to provide a k

Method used

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  • Preparation method of low-density multi-angle woven carbon fiber hard heat insulating barrel
  • Preparation method of low-density multi-angle woven carbon fiber hard heat insulating barrel
  • Preparation method of low-density multi-angle woven carbon fiber hard heat insulating barrel

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Embodiment 1

[0044] A method for preparing a low-density multi-angle braided carbon fiber rigid insulation cylinder, specifically comprising the following steps:

[0045] (1) Use carbon fiber with a carbon content ≥ 92% as the raw material, cut the carbon fiber short, comb it into wool with a carding machine and make it into a mesh tire, and the weight of the mesh tire is 70g / m 2 , the carbon fiber arrangement direction is basically consistent with the plane where the mesh tire is located;

[0046] (2) Use needle punching method to combine 10 layers of mesh tires into a mesh tire unit, and the density of needle punching is 2-50 needles / cm 2 ; Make the net tire fluffy;

[0047] (3) Wrap the net tire unit on the supporting net grinding tool, such as figure 1 As shown, use the arc-shaped stripping needle punching device to repeatedly needle the mesh tire unit to the prefabricated body with a thickness of 50mm; at the same time, during the needle punching process, the supporting net grindin...

Embodiment 2

[0056] A method for preparing a low-density multi-angle braided carbon fiber rigid insulation cylinder, specifically comprising the following steps:

[0057] (1) Use carbon fiber with a carbon content ≥ 92% as raw material, cut the carbon fiber short, comb it into wool with a carding machine and make it into a mesh tire, and the weight of the mesh tire is 100g / m 2 , the thickness is 1mm, and the carbon fiber arrangement direction is basically consistent with the plane where the mesh tire is located;

[0058] (2) Use needle punching method to combine 10 layers of mesh tires into a mesh tire unit, and the density of needle punching is 2-50 needles / cm 2 ; Make the net tire fluffy;

[0059] (3) Wrap the net tire unit on the supporting net grinding tool, such as figure 1 As shown, use the arc-shaped net stripping needle punching device to repeatedly needle the mesh tire unit to the required specification of 50mm embryo body; at the same time, during the needle punching process, ...

Embodiment 3

[0068] A method for preparing a low-density multi-angle braided carbon fiber rigid insulation cylinder, specifically comprising the following steps:

[0069] (1) Use carbon fiber with a carbon content ≥ 92% as a raw material, cut the carbon fiber into short lengths, comb it into wool with a carding machine and make it into a mesh tire, and the weight of the mesh tire is 120g / m 2 , the thickness is 1mm, and the carbon fiber arrangement direction is basically consistent with the plane where the mesh tire is located;

[0070] (2) Use needle punching method to combine 10 layers of mesh tires into a mesh tire unit, and the density of needle punching is 2-50 needles / cm 2 ; Make the net tire fluffy;

[0071] (3) Wrap the net tire unit on the supporting net grinding tool, such as figure 1 As shown, use the arc-shaped net stripping needle punching device to repeatedly needle the mesh tire unit to the embryo body with a thickness of 50 mm; at the same time, during the needle punching...

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Abstract

The invention discloses a preparation method of a low-density multi-angle woven carbon fiber hard heat insulating barrel. The preparation method specifically includes the following steps that carbon fibers are chopped, the carbon fibers are carded into broken filaments with a carding machine, and the broken filaments are made into felt; the felt is compounded into a felt unit through needling; thefelt unit surrounds a net supporting grinding tool for needling, and needling fibers at the angle of -90-90 degrees are formed; a prepared blank is subjected into internal one-way glue spraying witha high-permeability fog spraying method; the material into which glue permeates is sequentially hot-pressed, carbonized and purified, a carbon fiber heat insulating barrel primary product is obtained,and the product is machined into a product needed by a high-temperature furnace. Compared with an existing product soft felt winding and vapor deposition shaping method, the preparation method is good in heat insulation; the service life is doubled; high-permeability spraying is adopted, and the density uniformity and the performance stability of the product can be guaranteed; and application environments of the product are wide.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation equipment, in particular to a method for preparing a low-density multi-angle braided carbon fiber rigid thermal insulation cylinder. Background technique [0002] As one of the industries that need to have many high-temperature furnaces, photovoltaic single crystal equipment, folding equipment, heat treatment and other circular equipment. Due to the increase in market demand and low product profits, various domestic costs have increased. Cost reduction is one of the living conditions of the photovoltaic industry. As one of the consumable parts, thermal insulation materials consume a huge amount every year, and their thermal insulation performance and product service life directly affect the performance of enterprises. [0003] At present, circular high-temperature equipment heat insulation materials in the market are wound with impurity-containing soft felt, or shaped by vapor depositi...

Claims

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Application Information

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IPC IPC(8): D04H1/4374D04H1/4242D04H1/593D04H18/02D06C7/04
CPCD04H1/4242D04H1/4374D04H1/593D04H18/02D06C7/04
Inventor 郭建军刘二良郭建明杨艳文
Owner QINGDAO ADVANCED GRAPHITE MATERIALS CO LTD
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