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Method and equipment for producing part by injecting resin into woven fibre preform

A technology for preforms, weaving fibers, used in the field of production parts, which can solve problems such as insufficient resin injection, pipe blockage, etc.

Pending Publication Date: 2020-03-17
SAFRAN AIRCRAFT ENGINES SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the resin polymerizes faster in the tubing connecting the piston to the chamber, a blockage can form inside the tubing and cause underfilling of the resin

Method used

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  • Method and equipment for producing part by injecting resin into woven fibre preform
  • Method and equipment for producing part by injecting resin into woven fibre preform
  • Method and equipment for producing part by injecting resin into woven fibre preform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Figure 1a and Figure 1b It has been described above and represents a method according to the prior art.

[0050] Figure 2a and Figure 2b shows a method according to the invention for producing a component made of composite material, the steps being preferably carried out by image 3 and the device 100 shown below.

[0051]The apparatus 100 basically comprises a mold 102 integral with a lower plate 104, preferably a heating plate, and a counter mold 106 integral with an upper plate 108, which is preferably also a heating plate. Sealing means are preferably provided between the mold and the counter mould. In the example shown, the lower plate 104 forms a base for supporting the equipment, which could eg be resting on the floor of a production hall.

[0052] The mold 102 is located on the upper face of the plate 104 and includes a cavity 110 that can be placed in the Figure 4 most clearly seen in . In the example shown, cavity 110 is, for example, a cavity of a...

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PUM

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Abstract

A method for producing a part by injecting resin (202) into a woven fiber preform (200), comprising the steps of: c) shaping the preform, d) forming the preform, and e) injecting resin into the preform and moulding, the step e) being carried out by means of equipment (100) comprising a mould (102), a counter-mould (106), and resin injecting means, characterized in that the step e) comprises the sub-steps of: e1) partially opening the equipment (100), e2) injecting resin into the equipment, e3) closing the equipment, and e4) pressurizing and heating the impregnated preform (200) between the mould (102) and the counter-mould (106).

Description

technical field [0001] The present invention relates to a method and an apparatus for producing components by infusing resin into woven fiber preforms. Background technique [0002] Components, in particular components of turbine engines such as fan blades, may be produced by infusing resin into woven fiber preforms. This molding method, known as RTM (Resin Transfer Moulding, Resin Transfer Molding), is a well-known production method in the prior art, which consists of placing a fiber preform comprising at least one outer wall of dry material in a set In the sealed cavity of the equipment, and fill the cavity with impregnating resin, usually epoxy resin. [0003] The outer walls of the preform or the entire preform are usually made from woven composite fibers such as carbon fibres. [0004] Figure 1a The different steps of a method for producing a component of the type described above according to the current state of the art are shown. The method mainly includes six ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/54
CPCB29C70/48B29C70/548B29K2063/00B29K2307/04B29K2713/00
Inventor 罗曼·普兰特西尔维·卡拉蒂尼马克-以马内利·让·弗朗索瓦·泰彻
Owner SAFRAN AIRCRAFT ENGINES SAS