Integral preparation method of ceramic-based composite lattice structure

A lattice structure and composite material technology, which is used in ceramic molding machines, manufacturing tools, mold fixtures, etc., can solve the problems of difficult dimensional accuracy control, poor interlayer strength, and low pressure bearing capacity of composite lattice structures. , to improve the overall compressive capacity, improve the interlaminar strength, and improve the effect of deformation

Active Publication Date: 2019-09-06
湖南远辉复合材料有限公司
View PDF16 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the disadvantages of the prior art, such as the complex process for preparing ceramic matrix composite lattice structures, the difficulty in controlling the dimensional accuracy, or the low pressure bearing capacity and poor interlayer strength of the obtained composite lat

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Integral preparation method of ceramic-based composite lattice structure
  • Integral preparation method of ceramic-based composite lattice structure
  • Integral preparation method of ceramic-based composite lattice structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] Example 1

[0051] A composite material lattice structure fiber preform integral molding die, its three-dimensional structure diagram is as follows Figure 4 As shown, it includes a direction control slide plate 1, an outer pressure plate 3, an inner pressure plate 4, a fixed block 5, and a trapezoidal cushion block 6. The direction control slide plate 1 is used to set a corrugated structure, and includes two plates with the same design and layout. Structure diagram such as Figure 5 As shown, N+1 inverted isosceles trapezoidal through holes 10 are provided in the horizontal direction on the plate, where N is an integer, and N upright isosceles trapezoidal through holes 11 are alternately arranged in the horizontal direction. And the inverted isosceles trapezoidal through holes 10 are relatively staggered; the four corners of the two plates are correspondingly provided with slide rail plate connection holes 2 for connecting and fixing the two slide rail plates at a predeter...

Example Embodiment

[0052] Example 2

[0053] The method of using the integral molding die of the composite material lattice structure fiber preform described in Example 1 includes the following steps:

[0054] S11. Cut fiber cloth to the design size, including panel fiber cloth and medium trapezoidal corrugated board fiber cloth;

[0055] S12. Lay the panel fiber cloth to the designed number of layers on the surface of one of the inner pressure plates;

[0056] S13. Make the two plates of the slide rail plate 1 and the inner plate of the panel fiber cloth laid on a frame connected and fixed to the outer plate 3 into a vertical cross state through the direction control of the plate connecting hole 2 of the slide rail connected and fixed by the slide rail column, The upright isosceles trapezoidal through hole 11 and the inverted isosceles trapezoidal through hole 10 on the direction control slide plate 1 are located above the surface of the pressure plate fiber cloth in the laid panel fiber cloth;

[0057]...

Example Embodiment

[0063] Example 3

[0064] A ceramic matrix composite material corrugated plate lattice structure. The lattice structure uses a SiC / SiC ceramic matrix composite material as a light-weight lattice structure for heat protection / loading.

[0065] The lattice structure of the SiC / SiC ceramic matrix composite corrugated plate of this embodiment is prepared through the following steps:

[0066] (1) Molding of the fiber preform: Cut the SiC fiber cloth to the required size, and lay the corrugated board in the integral molding die of the composite material lattice structure fiber preform described in Example 1 according to the operation steps described in Example 2. 8 layers of SiC fiber cloth and panel, interlayer stitching of corrugated board fiber cloth and panel fiber cloth, and integral stitching of the contact part of corrugated board fiber cloth and panel fiber cloth to obtain a lightweight lattice structure fiber preform;

[0067] (2) Vacuum impregnation: vacuum impregnate the fiber pr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an integral preparation method of a ceramic-based composite lattice structure. An integral forming mold for a composite lattice structure fiber preform is used to realize the simple preparation of the ceramic-based composite corrugated plate lattice structure, improve the interlayer performance and achieve a high profile dimension control precision, batch production and product net-forming. The prepared ceramic-based composite corrugated plate lattice structure has the advantages of good high temperature resistance, good oxidation resistance and good mechanical properties, can be reused, and is especially suitable for being applied to the high temperature (1000-1650 DEG C) oxidizing environment.

Description

technical field [0001] The invention generally belongs to the technical field of high temperature resistance and thermal protection, and in particular relates to an integral preparation method of a lattice structure of a corrugated plate made of a ceramic matrix composite material. Background technique [0002] A hypersonic vehicle is subject to the combined effects of aerodynamic load and thermal load during high-speed flight or reentry. In order to ensure the integrity of the vehicle’s shape and structure, and the normal operation of the internal components of the vehicle, the thermal protection system needs to meet thermal protection, heat insulation and structural requirements. carrying needs. The surface temperature of the large-area thermal protection system of a hypersonic vehicle is as high as 1200 °C, so traditional heat-resistant materials such as high-temperature insulation tiles, flexible insulation blankets, and metal TPS structures cannot meet the requirements ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B35/14C04B35/117C04B35/185C04B35/571C04B35/80C04B35/82B28B1/52B28B7/00
CPCB28B1/52B28B7/00B28B7/0002B28B7/0014C04B35/803C04B35/806C04B35/117C04B35/14C04B35/185C04B35/571C04B35/82C04B2235/5224C04B2235/5232C04B2235/5244C04B2235/5248C04B2235/5256C04B2235/616C04B2235/656C04B2235/6567
Inventor 贾成兰张玉娣易雄辉
Owner 湖南远辉复合材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap