Self-heating molding repair device of medium-temperature curing composite material

A composite material and self-heating technology, applied in heat exchange materials, thermal insulation, heat exchange equipment, etc., can solve the problem of self-heating related technologies that do not meet the requirements of composite material molding, repair and curing, difficult to discharge exothermic gas products, self-heating The problem of uneven mixing of materials can achieve the effect of simple structure, good thermal insulation effect and high mechanical properties.

Active Publication Date: 2016-12-07
ACADEMY OF ARMORED FORCES ENG PLA
View PDF8 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, there is a self-vulcanized rubber heating vulcanization technology using self-heating materials in the prior art, but this technology has problems such as poor adhesion of repair materials, uneven mixing of self-hea

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
  • Self-heating molding repair device of medium-temperature curing composite material
  • Self-heating molding repair device of medium-temperature curing composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] as attached figure 1 As shown, a medium-temperature curing composite material self-heating forming repair device of the present invention includes a vacuum pressure layer and a heating layer assembly that press the epoxy resin-based composite material patch on the surface of the repaired composite material structure.

[0029] The vacuum pressure layer includes a high temperature resistant film and an air suction port installed on the high temperature resistant film, and the air suction port is a one-way valve. The material of the high temperature resistant film is PET film.

[0030] The heating layer assembly includes a self-heating material layer composed of a solid part of the self-heating material, an insulation layer that attaches the self-heating material layer to the outer surface of the vacuum...

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 a self-heating molding repair device of a medium-temperature curing composite material. The repair device comprises a vacuum pressing layer for pressing a composite material repair piece on the surface of a repaired composite material structure, and a heating layer module. The repair device is characterized in that the vacuum pressing layer includes a high-temperature resisting film, and an air sucking port mounted in the high-temperature resisting film; the air sucking port is a one-way valve; the heating layer module includes a self-heating material layer formed by a self-heating material solid part, an insulation layer for bonding the self-heating material layer on the outer surface of the vacuum pressing layer and coating the self-heating material layer, a water injecting port and an exhaust port; and the insulation layer includes a high-temperature resisting film on the outermost layer, a ventilation felt on the middle layer, and a silica gel film on the inner layer. The repair device use self heat release performance of a self-heating material for quickly and conveniently curing and repairing composite material patches, satisfies the curing requirements of the composite material patches through heating temperature and time, and can enable repaired pieces to obtain excellent mechanical performances.

Description

technical field [0001] The invention mainly relates to the technical field of repairing composite material patches. The device uses a new type of mixed material to heat and solidify the patch by using its own heat release. Background technique [0002] Due to construction defects or mechanical damage during maintenance, as well as the aging of lining materials during service, it is inevitable that the composite structure will be partially damaged. In recent years, the use of composite material patch to repair the structural damage of metal components has been widely researched and applied at home and abroad. In the early 1970s, the Australian Aeronautical Research Institute first used composite material bonding repair technology on aircraft structures. In the 1980s, the United States also carried out corresponding research and repaired C-141 with composite materials. At present, the damage repair of composite materials has formed a relatively complete system. The research...

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): F16L55/17F16L59/065C09K5/18
CPCC09K5/18F16L55/1705F16L59/065
Inventor 李长青董怀斌刘培旺张威威余立新李占明
Owner ACADEMY OF ARMORED FORCES ENG PLA
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