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Device and method for compacting/consolidating a part made of a composite material having a thermoplastic matrix reinforced by continuous fibers, in particular fibers of natural origin

A technology of continuous fibers, thermoplastic polymers, in the field of devices and methods for compression-consolidation of parts made of composite materials having a thermoplastic matrix reinforced with continuous fibers of natural origin, capable of solving the problem of wrinkling , wrinkling, not allowing the production rate and other problems, to achieve the effect of improving the heat dissipation coefficient and enhancing the reinforcement

Active Publication Date: 2013-12-18
ROCTOOL SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, this method does not allow the fabric to be under tension, so that wrinkles and / or puckering can form in or near non-extensible areas
Furthermore, this method of forming / compressing from films or bags does not allow for increased production rates for series in relation to the intended use
Therefore, according to the prior art there is no suitable method for the manufacture of such parts

Method used

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  • Device and method for compacting/consolidating a part made of a composite material having a thermoplastic matrix reinforced by continuous fibers, in particular fibers of natural origin
  • Device and method for compacting/consolidating a part made of a composite material having a thermoplastic matrix reinforced by continuous fibers, in particular fibers of natural origin
  • Device and method for compacting/consolidating a part made of a composite material having a thermoplastic matrix reinforced by continuous fibers, in particular fibers of natural origin

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Embodiment Construction

[0045] exist figure 1 Among them, according to an implementation example, the part ( 100 ) that is the object of the invention has the shape of a half-shell comprising a bottom ( 110 ) and a flanged edge ( 120 ). The profile (111) of the part (100) is continuous so that the part includes a non-developable area (121) with a triangular connection between the flanged edge (120) and the bottom (110), which is called a "corner fitting ". The bottom is shown here as a plane. According to a better embodiment (not shown), the bottom can be formed according to a curved surface in the form of a double arc. The part (100) consists of a laminated composite material comprising a plurality of plies comprising so-called continuous fibers (130). So-called continuous fibers extend from one side of the part (100) to the other in a continuous fashion. According to a better embodiment, said fibers consist of reconstituted continuous fibers or individual continuous fibers formed of a group of...

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Abstract

The invention relates to a device for forming and consolidating a textile preform (600) comprising continuous fibers impregnated with a thermoplastic resin, characterized in that it includes: i) a die (200) including a former (210) comprising a cavity (220) corresponding to the shape of the part, the depth of said former extending between an inlet plane and a bottom, and said former being inserted into a mold base (230); ii) means (241, 242) for the induction-heating of the former (210), including two inductors which extend into recesses of the former (210), and each of which forms a turn in a plane substantially parallel to the inlet plane of the cavity (220) and located between said inlet plane and the bottom of the former; and iii) a means (235) for cooling the die.

Description

technical field [0001] The invention relates to a device and a method for the compression-consolidation of parts made of composite materials having a thermoplastic matrix reinforced with continuous fibers, especially of natural origin. More particularly, the invention is suitable for the mass production of half-shell-shaped and non-developable composite parts with a thermoplastic matrix, said parts comprising 4 flanged edges along a closed contour, said edges being formed by The triangular connectors at the corners of the body are connected. Parts of this type are used in particular as housings or half-shells for telecommunication terminals such as mobile phones, personal digital assistants or personal tablet computers. Alternatively, but not limited to, the half-shells may be used as housings for electronic components and screen supports when assembled to the objects for which they are used, or possibly as additional protective casings capable of containing related objects. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/46H05K5/00B29C33/06H04M1/02H05B6/02B29C35/08
CPCB29L2031/3481B29K2207/00B29K2267/003B29C70/46B29C70/465B29C33/06B29C35/0805B29K2067/003B29C70/16H04M1/0283H05B6/10B29C2035/0811G06F2200/1633B29L2031/3475H05B6/02H05K5/00
Inventor 若泽·费根布卢姆亚历山大·吉夏尔
Owner ROCTOOL SAS
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