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Wave-transparent type heat-insulating and gas-blocking component and manufacturing method thereof

A wave-transmitting and component-based technology, applied in heat exchange equipment, chemical instruments and methods, and pipeline protection through heat insulation, to achieve the effects of low dielectric loss, reduced heat transfer, and stable electrical properties

Active Publication Date: 2020-04-21
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the shortcomings of the single material of the existing wave-transparent and heat-insulating components, the present invention provides a wave-transmitting heat-insulating and gas-blocking component with low dielectric, stable electrical properties at high temperatures, and excellent heat insulation effect and its preparation method

Method used

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  • Wave-transparent type heat-insulating and gas-blocking component and manufacturing method thereof
  • Wave-transparent type heat-insulating and gas-blocking component and manufacturing method thereof
  • Wave-transparent type heat-insulating and gas-blocking component and manufacturing method thereof

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preparation example Construction

[0028] In the first aspect, the present invention provides a method for preparing a wave-transparent heat-insulating and gas-blocking component, the method comprising the following steps:

[0029] (1) A plurality of lightweight wave-transmitting heat-insulating tile materials are prepared by wet forming; in the present invention, the light-weight wave-transmitting heat-insulating tile materials are also recorded as low-density heat-insulating tiles or low-density heat-insulating tile materials; In the present invention, specifically, the preparation of the low-density heat-insulating tiles is, for example, dispersing fibers and additives in proportion, and then forming, drying, sintering, and hydrophobic treatment to prepare low-density heat-insulating tiles of different densities and thicknesses. Density heat insulation tile material, and machine-cut low-density heat insulation tile material products of different densities and thicknesses into multiple low-density heat insulat...

Embodiment 1

[0056] ① Use chopped quartz fiber as raw material, mix and disperse the fiber and water at a ratio of 1:100, pour the dispersed slurry into the tooling, adjust the suction filter control valve to gear 3, and wait until there is no water stain on the surface of the wet billet After remaining, perform mold release treatment. After the demoulding process, the height of the wet billet is positioned, and the height of the wet billet is controlled at 120mm by light pressing. The wet billet with a fixed thickness is placed in an oven for drying. After the dry billet is obtained, it is sintered in a muffle furnace, and the product is naturally cooled. After reaching room temperature, carry out hydrophobic treatment to obtain a density of 0.1g / cm 3 , 120mm thick low-density thermal insulation tile rough, and then machine-cut into two 30mm thick, two 20mm thick low-density thermal insulation tile flat boards for use.

[0057] ② Use quartz fiber as the composite material reinforcement (...

Embodiment 2

[0061] ① Use chopped quartz fiber as raw material, mix and disperse the fiber and water at a ratio of 1:100, pour the dispersed slurry into the tooling, adjust the suction filter control valve to gear 3, and wait until there is no water stain on the surface of the wet billet After remaining, perform mold release treatment. After the demoulding process, the height of the wet billet is positioned, and the height of the wet billet is controlled at 90mm by light pressing. The wet billet with a fixed thickness is placed in an oven for drying. After the dry billet is obtained, it is sintered in a muffle furnace, and the product is naturally cooled. After reaching room temperature, carry out hydrophobic treatment to obtain a density of 0.15g / cm 3 , 90mm-thick low-density heat-insulating tile blank, and then cut into three 30mm-thick low-density heat-insulating tile flat plates by machine.

[0062] ② Use quartz fiber as the composite material reinforcement (fiber reinforcement), impr...

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Abstract

The invention relates to a wave-transparent type heat-insulating and gas-blocking component and a manufacturing method thereof. The manufacturing method comprises the following steps: manufacturing aplurality of pieces of light wave-transmitting heat-insulating tile materials through wet-process forming; stacking the multiple pieces of the light wave-transmitting heat-insulating tile materials, and arranging a layer of wave-transparent gas-blocking films between every two adjacent two pieces of the light wave-transmitting heat-insulating tile materials, thereby obtaining a wave-transparent gas-blocking component material; soaking fiber reinforcement with silica sol, thereby obtaining a fiber reinforced aerogel heat-insulating material; and utilizing quartz cloth to coat the wave-transparent gas-blocking component and the fiber reinforced aerogel heat-insulating material to obtain a first sub component and a second sub component, and connecting the first sub component and the second sub component to the wave-transparent type heat-insulating and gas-blocking component through quartz fiber yarns. The method can manufacture the wave-transparent type heat-insulating and gas-blocking component which has low dielectric loss, is resistant to a temperature of 1100 DEG C and block thermal convection conduction at a high temperature.

Description

technical field [0001] The invention belongs to the technical field of heat-transparent wave protection, and in particular relates to a wave-transparent heat-insulating and air-blocking component and a preparation method thereof. Background technique [0002] Due to its special three-dimensional porous nano-network structure, airgel materials can significantly reduce heat convection and solid conduction, and exhibit low thermal conductivity. Silica airgel is currently widely used as an airgel material, and fiber-reinforced silica composite materials are usually used as thermal insulation member materials. Due to the introduction of fiber reinforcement as a support material during the preparation process, the material usually has a high density and a dielectric constant greater than 1.25, which cannot meet the requirements of high wave-transmissive components. [0003] Low-density thermal insulation tile is a fiber body material obtained by wet forming of short fibers, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/02B32B9/00B32B9/04B32B5/02B32B27/28B32B27/32B32B27/36B32B27/30B32B27/06B32B27/12B32B33/00B32B37/00
CPCB32B27/12B32B27/281B32B27/302B32B27/32B32B27/322B32B27/36B32B27/365B32B33/00B32B37/00B32B2262/10B32B2307/304F16L59/029
Inventor 张鸶鹭孙景景张丽娟李文静杨洁颖赵英民
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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