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Method for manufacturing fiber enhancement hollowed section bar

A technology of hollow profile and fiber reinforcement, which is applied in the field of manufacturing fiber reinforced hollow profile components to achieve the effects of reduced equipment cost, uniform fiber volume content, and good mechanical properties

Active Publication Date: 2015-07-29
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, there is the problem that the hollow profile structure is positioned indefinitely in the mold cavity of the mold

Method used

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  • Method for manufacturing fiber enhancement hollowed section bar
  • Method for manufacturing fiber enhancement hollowed section bar
  • Method for manufacturing fiber enhancement hollowed section bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Figure 4 A schematic cross-sectional view showing a first method step of the method according to the invention for producing a fiber-reinforced hollow profile component.

[0035] The mold 10 for carrying out the method has a lower mold 12 and an upper mold 14 . A seal 16 is present between the lower mold 12 and the upper mold 14 .

[0036] In the cavity 18 of the mold 10 there is a profile body 20 with fibers 22 arranged around the profile body 20 .

[0037] The profile body 20 is a blown core in the exemplary embodiment shown here.

[0038] as from Figure 4 and 5 As can be clearly seen in , there is a cavity 24 between the profile body 20 with the fibers 22 and the lower mold 12 and the upper mold 14 .

[0039] The cavity 24 surrounds the entire profile body 20 with the fibers 22 arranged around it.

[0040] as from Figure 5 As can be clearly seen in , core positioning tools 26 are provided on the sides of the lower mold 12 and the upper mold 14 respectively....

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Abstract

The invention relates to a method for manufacturing fiber enhancement hollowed section bar. This method is the following steps: fiber (22) applied to profile on the body (20); Will be described in the section on the body (20), together with the body in the profile of the fiber (22) in mould (10); Closed die (10) will be stated, until in the mold (10) and fiber pre qualified cavity formed between (22) (24). The matrix materials (28) mentioned in injection mould (10) and described the cavity (24); And that described pre qualified cavity (24).

Description

technical field [0001] The invention relates to a method for producing fiber-reinforced hollow profile components. Background technique [0002] It is known from the prior art to produce fiber-reinforced hollow profile components using the resin transfer molding (Resin Transfer Molding: RTM) method. [0003] Preforms are produced from individual fiber bobbins, for example by means of weaving. For this purpose, inter alia, braiding techniques are used. The dried preform is filled into a mold and then impregnated with matrix material, for example with resin. In order to justify economic requirements with regard to short production cycles in the production of fiber-reinforced hollow profile components, very large pressure gradients are used during the impregnation of the preform with the matrix material. [0004] exist Figures 1 to 3 The process steps of the RTM method are shown in . figure 1 The insertion of the hollow profile 1 together with the core 2 into the RTM mold...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/54
CPCB29C70/48B29C33/505B29C70/345
Inventor T·米亚多维茨M·马夸特
Owner BAYERISCHE MOTOREN WERKE AG
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