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Liquid resin defoaming method and device for vacuum infusion forming of composite material

A liquid resin and composite material technology, applied in the field of composite material molding, can solve the problems of low degassing efficiency, inability to realize continuous production, high labor intensity, etc., and achieve the effects of cost saving, reduction of vacuum infusion failure, and improvement of comprehensive performance

Active Publication Date: 2011-09-07
LUOYANG SUNRUI WIND TURBINE BLADE
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0008] The invention proposes a liquid resin degassing method and device for vacuum infusion molding of composite materials; it solves the problems of low degassing efficiency, high labor intensity and inability to realize continuous production in traditional liquid resin degassing

Method used

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  • Liquid resin defoaming method and device for vacuum infusion forming of composite material
  • Liquid resin defoaming method and device for vacuum infusion forming of composite material
  • Liquid resin defoaming method and device for vacuum infusion forming of composite material

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Embodiment Construction

[0032] Embodiments of the present invention are described in conjunction with accompanying drawings:

[0033] like figure 2 , image 3 As shown, a device for defoaming liquid resin in vacuum infusion molding process of composite materials mainly includes liquid resin mixing equipment 1, defoaming device 13, mixing liquid resin with mixing equipment 1, and vacuum infusion molding site for liquid resin and composite materials. A connected liquid resin flow channel 2; the degassing device is mainly composed of a vacuum pump 8, a multilayer spiral laminar flow plate, a valve i10, a valve ii15, and a valve iii16; the spiral laminar flow plate is a spherical arc surface structure, and the arc The liquid resin flow groove channel 17 is distributed on the surface, and the liquid resin flow groove channel 17 is spiral; a plurality of liquid resin flow holes are distributed in the groove channel, and several spiral laminar flow plates pass through the multi-layer spiral laminar flow s...

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Abstract

The invention belongs to the field of composite material forming technology and mainly relates to a liquid resin defoaming method and device for vacuum infusion forming of composite material. In the defoaming method, mixed liquid resin enters a defoaming device (13) and continuously flows over a plurality of layers of spiral laminar flow plates of the defoaming device; the defoaming device (13) is in a continuous vacuum state to increase the surface area of the liquid resin, even if the liquid level of the liquid resin becomes a thin layer with extremely small thickness, the pressure difference of the defoaming device instantaneously amplifies the volume of bubbles in the liquid resin, and the bubbles are removed quickly under the continuous vacuum state; and the liquid resin which is defoamed is directly connected to the vacuum infusion forming site of the composite material to carrying out infusion forming of a composite material product (9) in a vacuum state, and thus, the integration of defoaming and infusion of the liquid resin is realized.

Description

technical field [0001] The invention belongs to the technical field of composite material molding, and mainly relates to a liquid resin defoaming method and device for vacuum infusion molding of composite materials. Background technique [0002] The principle of the forming process is: dry fiber laying in the composite mold, laying diversion medium on the upper surface of the dry fiber laying, and then these dry laying and diversion medium together with the mold to establish a vacuum sealing system, and finally under vacuum pressure Dispersion of the lower viscosity liquid resin through the diversion medium completely infiltrates the laminate. This molding method has many advantages such as no volatilization, good working environment and good product performance. [0003] However, many air bubbles are often left in the composite material formed by the vacuum infusion process, resulting in an overall decline in the performance of the composite material. At present, in order...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/36B29C39/42
Inventor 黎华林明陆书建
Owner LUOYANG SUNRUI WIND TURBINE BLADE
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