High-temperature resistant erosion-resistant carbon fiber composite tube and preparation method thereof

A composite material pipe and composite material technology, applied in the field of high temperature and erosion resistant carbon fiber composite material pipe and its preparation, can solve the problems of heavy weight, weak resistance to deformation and damage, and low temperature resistance, and achieve light weight, The effect of high stiffness

Pending Publication Date: 2018-07-13
SHANDONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

Modern high-temperature erosion-resistant materials are mainly prepared on the basis of adding W, Co, Mo and other elements to high-temperature alloys. Not only the production cost is high, the temperature is relatively low, the high-temperature corrosion resistance is relatively poor, but also the weight is large, and its own resistance to deformation Relatively weak in destructive ability

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  • High-temperature resistant erosion-resistant carbon fiber composite tube and preparation method thereof

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preparation example Construction

[0042] On the other hand, the present invention also provides a method for preparing the above-mentioned high-temperature and erosion-resistant carbon fiber composite material pipe, including:

[0043] Step 1: Preparation of the ablation-resistant layer: impregnate two-dimensional or three-dimensional woven carbon fiber fabrics with resin, and carbonize the resin after multiple impregnations in an inert gas environment to form a carbon matrix;

[0044] Step 2: Preparation of the erosion-resistant layer: the surface of the ablation-resistant layer obtained in step 1 is prepared by using a carbon fiber two-dimensional fabric laminate structure or a three-dimensional fabric structure preform, impregnating the ceramic matrix with the prefabricated fabric, and then sintering in a high temperature environment to form For ceramic matrix composite materials, the entire sintering process is carried out in an inert gas environment or a vacuum environment;

[0045] Alternatively, the sur...

Embodiment 1

[0053] The carbon fiber high-temperature and erosion-resistant tubular structure is composed of four layers: ablation-resistant layer, erosion-resistant layer, high-temperature strength layer, and insulation layer. The ablation-resistant layer is made of phenolic resin impregnated with three-dimensional four-way woven T300 carbon fiber fabric. Sub-immersion carbonization, the carbonization temperature is 2000°C, the final carbon matrix content is 40%, the porosity is controlled at 0.1%, and the bulk density of the overall ablation-resistant layer is 1.8g / cm 3 ; After the ablation-resistant layer is prepared, use T800 carbon fiber two-dimensional laminated structure fabric on its surface to reinforce silicon nitride ceramics to prepare a composite material, in which the content of the ceramic matrix is ​​finally controlled at 50%, and the entire preparation is sintered at high temperature in a vacuum environment , the sintering temperature is 1700°C; on the surface of the erosio...

Embodiment 2

[0055] The carbon fiber high-temperature and erosion-resistant tubular structure is composed of four layers: ablation-resistant layer, erosion-resistant layer, high-temperature strength layer, and insulation layer. The ablation-resistant layer is made of furan resin impregnated with three-dimensional four-way woven T800 carbon fiber fabric. Sub-immersion carbonization, the carbonization temperature is 1800°C, the final carbon matrix content is 42%, the porosity is controlled at 0.2%, and the bulk density of the overall ablation-resistant layer is 1.8g / cm 3 ; After the ablation-resistant layer is prepared, the composite material is prepared by using T700 carbon fiber two-dimensional laminated structure fabric to reinforce silicon carbide ceramics on its surface, wherein the content of the silicon carbide matrix is ​​finally controlled at 40%, and the entire preparation is sintered at high temperature in a vacuum environment , the sintering temperature is 1800°C; on the surface o...

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Abstract

The invention discloses a high-temperature resistant erosion-resistant carbon fiber composite tube and a preparation method of the high-temperature resistant erosion-resistant carbon fiber composite tube, and belongs to the technical field of composite tubes. The high-temperature resistant erosion-resistant carbon fiber composite tube sequentially comprises an ablation resistant layer, a scouringresistant layer, a high temperature strength layer and a thermal insulation layer from inside to outside, wherein the ablation resistant layer comprises a carbon fiber reinforced carbon matrix composite, a carbon fiber is prepared from a three-dimensional or two-dimensional laminated structure fabric, a carbon matrix is prepared from a carbon prepared through high-temperature pyrolysis of a high polymer material; the scouring resistant layer is prepared from a ceramic matrix carbon fiber or a ceramic fiber reinforced composite; the high temperature strength layer is prepared from a carbon fiber reinforced high-temperature resistant resin composite; and the thermal insulation layer is prepared from a foam matrix reinforced carbon composite. The high-temperature resistant erosion-resistant carbon fiber composite tube is light in weight and good in high temperature resistance and erosion resistance.

Description

technical field [0001] The invention relates to the technical field of composite material pipes, in particular to a high temperature and erosion resistant carbon fiber composite material pipe and a preparation method thereof. Background technique [0002] Erosion and wear in high temperature environment are the main damage forms of temperature-resistant structural and functional components in modern high-temperature industrial production equipment, military equipment, and aerospace equipment. Due to the action of corrosive airflow in high-temperature environment, various ablation and The wear phenomenon exists for a long time, seriously affecting the service stability and life of the equipment. Among them, high-temperature erosion wear accounts for a relatively high proportion of high-temperature structural components. The high-temperature erosion problem is a kind of phenomenon that the surface of the material is damaged when it is impacted by high-temperature small and loo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/08B32B9/00B32B9/04B32B33/00
CPCB32B1/08B32B5/02B32B5/18B32B5/26B32B9/005B32B9/007B32B9/046B32B9/047B32B33/00B32B2260/021B32B2260/046B32B2262/106B32B2307/3065B32B2307/306B32B2307/558B32B2307/718B32B2597/00
Inventor 高学平朱波王强赵大涌乔琨郝继刚孟祥梅
Owner SHANDONG UNIV
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