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Device and method for applying a reactive mixture consisting of at least two components to a substrate

A technology of reaction mixture and carrier material, applied in the direction of coating, device for coating liquid on the surface, spraying device, etc., can solve the problems of cost increase, small spray angle, large material loss, etc.

Active Publication Date: 2015-03-25
KRAUSSMAFFEI TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The circular jet nozzles usually used for jet generation have the disadvantage that they only have a relatively small spray angle and spray large-area component parts resulting in very long cycle times
Although it is possible to influence the spray angle by supplying the air accordingly, this results in an increased spray
However, the generation of an increased spray or a finer spray results in a greater loss of material and in a greater pollution of the surrounding environment
This results in increased costs and maintenance costs overall

Method used

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  • Device and method for applying a reactive mixture consisting of at least two components to a substrate
  • Device and method for applying a reactive mixture consisting of at least two components to a substrate

Examples

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Embodiment Construction

[0024] figure 2 The illustrated carrier material 41 is a rectangular fiber mat in the present exemplary embodiment. A substantially rectangular area is sprayed on this fiber mat 41 with a polyurethane material 42 . The sprayed polyurethane material 42 penetrates into the fiber mat. A further material application in the form of a first circular material application 43 a , a second circular material application 43 b and an essentially L-shaped material application 43 c are arranged on the surface coated with the polyurethane material 42 . The material coated with the further material is likewise a polyurethane material, which in this case has fibers incorporated therein. The fiber mat sprayed in this way is then placed in a mold for hardening. Portions of the outwardly projecting regions 42 of the fiber mat 41 are cut away, either before or after hardening of the material, to ultimately result in the desired composite structural member.

[0025] figure 1 shows the method a...

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Abstract

A device and method for applying a reactive mixture consisting of at least two components to a substrate (41) having a spraying device (10) capable of generating a planar, fan-shaped spray jet (18) and a round spray jet (17), and having a means for moving the spraying device relative to the substrate, wherein the spraying device is moved over the substrate in at least two stages, wherein in the first stage, a first application of material (42) is performed with reactive mixture, using the planar, fan-shaped spray jet, on the substrate, and in a further stage a second application of material (43a-c) is subsequently performed with reactive mixture, using the round spray jet, on at least a section of the material applied to the substrate in the first application of material.

Description

technical field [0001] The invention relates to a device and a method for applying a reaction mixture of at least two components to a carrier material. Background technique [0002] In the production of composite structural components, such as fiber-reinforced products, it is known to place fiber mats on workpieces or into molds and then to coat them with plastic material. This method has recently been known, for example, under the name "Baypreg technology". In this connection see DE 10 2009 007 703 A1, for example. [0003] The plastic material, which can be, for example, a polyurethane material, is usually applied using a spray head which produces a circular jet. In addition, it is possible to add fibers to the plastic material in order to achieve a reinforcing effect. Depending on whether a pure coating plastic material or a fiber-impregnated coating plastic is desired for local reinforcement of the component to be coated, fibers can additionally be added during sprayi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/74B29B7/90B29B15/10B29C70/00B05B15/68
CPCB29B7/7438B29B7/90B29B15/10B29C67/246B29C70/305Y10S901/43B05B15/68B29B7/7447B05B7/02B05B1/04B05D1/02B05B1/02
Inventor E·沙伊特J·伦克尔
Owner KRAUSSMAFFEI TECH GMBH
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