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rtm method with intermediate fiber layer

A technology of intermediate fibers and fiber segments, which is applied in the field of manufacturing fiber composite components, can solve problems such as high mold costs and production costs, and achieve the effect of improving process safety

Active Publication Date: 2018-03-23
BENTELER AUTOMOBILTECHNIK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages here are the high tool and production costs and the fact that the resin has already started to harden due to temperature influences, so that several resin injection points may have to be provided

Method used

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  • rtm method with intermediate fiber layer
  • rtm method with intermediate fiber layer
  • rtm method with intermediate fiber layer

Examples

Experimental program
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Embodiment Construction

[0038] figure 1 A schematic mold 1 is shown with an upper mold 2 and a lower mold 3 , which is closed and thus has a mold cavity 4 . An inner surface 5 is formed in the mold cavity 4 . Furthermore, the fibrous material blank 6 is introduced into the mold cavity 4, wherein the outer surface 7 of the fibrous material blank 6 is in abutting contact with the inner surface 5 of the mold cavity 4, in particular substantially transversely to the extrusion stroke. In the area oriented in direction 8. However, a clearance space 9 remains, in which the outer surface 7 of the fiber material blank 6 does not come into abutting contact with the inner surface 5 of the mold cavity 4 . In the central region, resin injection openings are arranged in the form of strip gates 10 , so that the resin injected through these openings flows through the fiber material blank 6 . in press figure 2 Clearly visible in the top view of , the vacated space 9 is not only as in figure 1 remains equally on...

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Abstract

The invention relates to a method for producing components of fiber composite material, wherein a fiber material blank (6) is placed in a mold (1) and the mold (1) is closed and a resin system is injected into the closed mold (1 ), wherein at least partially between the outer surface (7) of the fiber material blank (6) and the inner surface (5) of the mold (1) an intermediate fiber layer (15) is fixedly positioned , so that the flow velocity of the resin system is reduced due to the intermediate fiber layer (15).

Description

technical field [0001] The invention relates to a method for producing a fiber composite component according to the features of the invention. Background technique [0002] Products made from fiber composite materials are known from the prior art. For this purpose, the fiber material penetrates into a matrix composed of resin, so that the component hardens after curing of the matrix. The component contains its own stiffness by orienting the fibers within the fiber composite. Various production methods are known for this purpose, such as lamination, in which a fiber material layer is applied in each case in the form of a mat, a woven fabric or a nonwoven, on which resin is again coated and the next fiber material layer is applied. [0003] However, resin injection methods (resin transfer molding) are also known from the prior art. For this purpose, a mold with a mold cavity, also called cavity, is provided. The fibrous material blank is placed into the mold cavity and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/48B29C45/14B29C45/73
CPCB29C45/0046B29C45/14786B29C45/73B29C70/48B29L2031/774B29C70/547
Inventor D·凯泽
Owner BENTELER AUTOMOBILTECHNIK GMBH
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