Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Process for manufacturing a part made of a composite having a hollow core

A technology of synthetic materials and cores, applied to objects with hollow walls, household appliances, and other household appliances, etc., can solve the problems of complex and large-scale manufacturing methods, and achieve the effect of improving mechanical properties

Inactive Publication Date: 2013-02-06
洛林航空工程公司 +3
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0033] However, these methods require a large number of intermediate layers (adhesive layers, barrier layers, etc.), which makes the application of the fabrication method relatively complex

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
  • Process for manufacturing a part made of a composite having a hollow core
  • Process for manufacturing a part made of a composite having a hollow core
  • Process for manufacturing a part made of a composite having a hollow core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] figure 1 The manufacture of a sealed hollow-cell honeycomb core 1 for the manufacture of composite material parts is shown.

[0059] To this end, the honeycomb core 1 is placed on a mold 2 and covered by a semi-rigid film 3 which forms a counter-mold and is associated with a device 4 for matching the mold 2 and the semi-rigid A vacuum is applied to the inner space defined by the membrane 3 .

[0060] The vacuum applied may typically be a vacuum of less than 100 mbar, and preferably a vacuum of greater than 4 mbar.

[0061] The semi-rigid membrane 3 can be, for example, a silicone membrane.

[0062] Gasket 5 ensures the seal between semi-rigid membrane 3 and mold 2 .

[0063] According to the invention, the honeycomb core 3 has upper and lower open surfaces covered with a polymerizable adhesive film 6, in particular of the epoxy adhesive type.

[0064]Preferably, the polymerizable adhesive film 6 is supported, ie reinforced, by weft threads, in particular by glass fi...

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 present invention relates to a process for manufacturing a part made of a composite having a hollow core (1) comprising the following steps: - applying at least one adhesive layer (6) to an open surface of the hollow core, said process being characterized in that the adhesive layer is a polymerizable blocking adhesive layer having, after polymerization, sealing properties with respect to a resin, and capable of preventing the diffusion of a resin into the hollow core; - and polymerizing the blocking adhesive layer so as to seal the hollow core.

Description

technical field [0001] The invention relates to a method for the manufacture of components of synthetic material by resin transfer moulding. Background technique [0002] Many known methods of molding by fibers impregnated with resin, in particular using closed moulds, can be used to manufacture components of synthetic material. [0003] First of all, mention may be made of the resin transfer molding method (RTM). [0004] In the RTM method, a set of fiber elements is arranged in a specific manner around the support, and this set of elements is placed inside a closed mold whose overall shape corresponds to the shape of the part to be manufactured. [0005] In conventional RTM methods, the die is formed from a female or master die and a counter die or punch section. [0006] The resin is then injected into the mold and polymerized. The resin particles then begin to bond together and form a solid network, resulting in a rigid part of the synthetic material formed from fiber...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/08B29C70/34B29C70/44B29C70/86B29D24/00
CPCB29C65/486B29C70/443C09J201/00B29C70/086B29C70/865B29C70/342Y10T156/10
Inventor 佛罗伦斯·卡斯特涅埃尔维·于尔林帕特里克·马丁阿兰·德肯托马里于斯·米阿吕塔亨利-弗朗索瓦·佩兰路易·贝特加让-皮埃尔·科舒瓦热罗姆·西尼理查德·芒格诺
Owner 洛林航空工程公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com