Pultrusion process and arrangement for the continuous production of blanks from a fibre-plastic composite material

A technology of pultrusion, fiber plastics, used in the field of pultrusion and facilities for the continuous manufacture of blanks formed from fiber plastic composite raw materials

Inactive Publication Date: 2019-05-21
THYSSENKRUPP CARBON COMPONENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method also has the aforementioned disadvantages due to the increased flow resistance to the enclosed air bubbles by the matrix material

Method used

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  • Pultrusion process and arrangement for the continuous production of blanks from a fibre-plastic composite material
  • Pultrusion process and arrangement for the continuous production of blanks from a fibre-plastic composite material
  • Pultrusion process and arrangement for the continuous production of blanks from a fibre-plastic composite material

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Embodiment

[0122] The pultrusion molding method according to the present invention will be further described below with reference to the embodiments of the accompanying drawings, but not limited to these embodiments.

[0123] In the picture:

[0124] figure 1 is a schematic diagram of a pultrusion plant with one embodiment of the plant according to the invention and suitable for carrying out the method according to the invention;

[0125] Figure 2a is an embodiment of the facility according to the invention;

[0126] Figure 2b is another embodiment of the plant according to the invention comprising cladding means;

[0127] Figure 3a An exemplary embodiment of a vacuum device with a modular design of vacuum chambers is shown in longitudinal section, wherein the section plane corresponds to the median plane of the bundle and is parallel to the pultrusion direction, and wherein the vacuum device have a fixed ring element;

[0128] Figure 3b is like Figure 3a Embodiments of suc...

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PUM

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Abstract

The invention relates to a pultrusion process for the continuous production of blanks from a fibre-plastic composite material (23), an arrangement for carrying out a pultrusion process and use of thepultrusion process according to the invention and the arrangement according to the invention. The pultrusion process comprises at least the following process steps: i. providing a strand of unimpregnated fibres (21); ii. feeding the strand of unimpregnated fibres (21) to a vacuum device (5, 5', 5''), which has at least one vacuum chamber (52, 52', 52''); iii. generating a negative relative pressure in the at least one vacuum chamber (52, 52', 52'') of the vacuum device (5, 5', 5''), whereby air (200) escapes from the strand of unimpregnated fibres (21); iv. removing the almost airless strand of unimpregnated fibres (22) from the vacuum device (5, 5', 5'') and feeding the almost airless strand of unimpregnated fibres (22) to an injection device (6, 6'), which has at least one injection chamber (61, 61'), wherein the vacuum device (5, 5', 5'') and the injection device (6, 6') are connected to one another in an airtight manner, at least with respect to the surroundings; v. injecting matrix material (230) in a flowable state into the at least one injection chamber (61, 61') of the injection device (6, 6') and impregnating the strand (2) with the matrix material (230); vi. removing of the blank (23) from the injection device (6, 6'). With the process according to the invention, a homogeneous and complete wetting of the fibres of the strand is advantageously achieved at a high drawing rate. Furthermore, the fibre-plastic composite is not pressed in the process.

Description

technical field [0001] The invention relates to a pultrusion method for the continuous production of blanks formed from fiber-plastic composite raw materials (FKV), a plant for carrying out the pultrusion method for the continuous production of blanks formed from fiber-plastic composite raw materials and to The pultrusion method according to the invention and the use of the plant according to the invention. Background technique [0002] The pultrusion method (also known as bundle drawing) enables the continuous manufacture of fiber-plastic composite profiles (FKV profiles), especially composite profiles reinforced with continuous fibers. In the pultrusion process, bundles of (reinforcing) fibers and / or fiber semi-finished products, especially continuous reinforcing fibers, are passed through a mechanism for the production of FKV profiles by means of a pulling mechanism, which generally consists of a The mechanism by which fibers are embedded in the plastic matrix (also know...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/52
CPCB29C70/526B29C70/523B29C70/525B29C70/545
Inventor 延斯·维尔纳安德烈·基斯林约恩·基莱蒂尔·魏因考夫
Owner THYSSENKRUPP CARBON COMPONENTS
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