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Dissipation thermal-insulation composite material and preparation method thereof

A composite material and heat-proof technology, applied in the field of lightweight ablation-resistant composite materials, can solve the problems of high cost and complicated preparation process, and achieve the effects of low manufacturing cost, simple preparation process and short cycle.

Inactive Publication Date: 2017-11-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems of complicated preparation process and high cost in the prior art, and provides a kind of dissipative and heat-resistant composite material and its preparation method

Method used

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Examples

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Effect test

specific Embodiment approach 1

[0014] Specific Embodiment 1: This embodiment is a kind of dissipative and heat-resistant composite material, which uses carbon material as the matrix. The agent is impregnated into the matrix to form a composite material.

specific Embodiment approach 2

[0015] Embodiment 2: This embodiment is different from Embodiment 1 in that: the matrix is ​​graphite or low-density C / C composite material. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0016] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the impregnating agent is prepared by 6-9 parts by mass of silicon and 1-5 parts of metal, wherein the metals are molybdenum, zirconium and aluminum One or more of the mixture. Others are the same as in the first or second embodiment.

[0017] Embodiment 4: The preparation method of a dissipative heat-resistant composite material described in Embodiment 1 is specifically carried out in the following steps:

[0018] 1. Weigh 6-9 parts of silicon and 1-5 parts of metal according to the parts by mass, and mix them uniformly to obtain the impregnating agent;

[0019] 2. Process the porous matrix into a component, ultrasonically clean it, and then dry it;

[0020] 3. Put the graphite crucible into the induction coil of the tiltable intermediate frequency furnace, fix it with quartz sand, and coat the inner wall of the graphite crucible with BN;

[0021] 4. Put the components treated in step...

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Abstract

The invention discloses a dissipation thermal-insulation composite material and a preparation method thereof, relates to the field of light anti-ablation composite materials and aims at solving the technical problem that an existing preparation technology is complex and has high cost. According to the composite material, a carbon material is utilized as a base body, the base body is immersed into a molten impregnant under vacuum high-temperature condition, capillary force of micro holes in the base body is utilized to immerse the impregnant into the base body to form the composite material. The preparation method comprises the steps: 1, preparing the impregnant; 2, processing the base body material; 3, processing a graphite crucible; 4, performing high-temperature impregnation. The prepared light anti-ablation dissipation thermal-insulation composite material disclosed by the invention has simple technology, short period, low manufacturing cost and good ablation resistance; the composite material can be applied to electroprocessing and machining, can be applied to manufacturing a throat lining and a gas rudder of a solid rocket engine jet pipe, also can be applied to manufacturing an end cap, a wing leading edge and a tail vane of a hypersonic aircraft and can be applied to manufacturing members of a turning orifice plate and the like of a guided missle.

Description

technical field [0001] The invention relates to the field of lightweight ablation-resistant composite materials. Background technique [0002] Ablation-resistant materials are important engineering materials in the fields of national defense and aerospace. Their function is to maintain the aerodynamic shape of the heated parts during working hours under the conditions of high temperature and high-speed airflow to make the aircraft work normally. With the continuous development of aerospace technology, more and more stringent requirements are put forward for ablation-resistant materials. Traditional ablation-resistant materials mainly include refractory metals and their composite materials, ceramic matrix composite materials, resin matrix composite materials, tungsten copper infiltration and carbon / carbon composite materials, etc. The ablation resistance mechanism of these materials have their own characteristics. Refractory metals such as tungsten, molybdenum, niobium and ...

Claims

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Application Information

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IPC IPC(8): C04B35/80C04B35/52C04B35/622
CPCC04B35/52C04B35/522C04B35/622C04B35/806C04B2235/5216C04B2235/6562C04B2235/6567C04B2235/96
Inventor 康鹏超武高辉陈国钦芶华松乔菁
Owner HARBIN INST OF TECH
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