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Process for producing glass reinforced plastic through strong core mat vacuum infusion

A technology of vacuum infusion and strong core felt, applied in the field of wind turbine equipment, can solve the problems of product quality defect, vacuum equipment damage, fast flow speed, etc.

Inactive Publication Date: 2012-01-25
TIANJIN DEFENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unsaturated polyester resin used in the vacuum infusion process has low viscosity and fast flow speed. After infiltrating the glass fiber laminated material, it is easy to quickly flow through the air felt and enter the air duct or vacuum equipment, resulting in product quality defects and Damage to vacuum equipment

Method used

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  • Process for producing glass reinforced plastic through strong core mat vacuum infusion
  • Process for producing glass reinforced plastic through strong core mat vacuum infusion

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Embodiment Construction

[0017] like figure 1 Shown, a kind of technique of the present invention uses strong core felt vacuum infusion to manufacture FRP, comprises the following steps:

[0018] 1) Fully clean the mold 8 and apply a release agent;

[0019] 2) Place the spiral exhaust pipe 7 in the groove provided at the upper end of the mold 8;

[0020] 3) Lay the first composite felt 1, the second composite felt 2, the third filament felt 3, the fourth composite felt 4 and the fifth composite felt 5 into the mold 8 from bottom to top, and the second composite felt 2 Between the third filament felt 3, a piece of strong core felt 6 with a width of 10 cm and a thickness of 2 mm is placed at a distance of 60 cm along the edge of the mold 8, and one end of each strong core felt 6 is placed in the glass fiber, and one end is wound around Place it under it through the spiral exhaust pipe, and wrap it back into the glass fiber laminate;

[0021] 4) cover the polyester film on the surface of the fifth com...

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Abstract

The invention provides a process for producing glass reinforced plastic through strong core mat vacuum infusion, which comprises the following steps of: stacking and putting a first composite mat, a second composite mat, a third filament mat, a fourth composite mat and a fifth composite mat in a mold, enabling glass fiber fabrics at all layers to be fully soaked by resin through a vacuum resin infusion method, and conducting solidification; and adding a strong core mat which is cut according to a fixed size between the second composite mat and the third filament mat, and connecting the strong core mat with laid spiral air extraction tubes to take an effect of auxiliary air extraction. The strong core mat has the characteristic of absorbing less resin, unsaturated polyester resin flows slowly in the strong core mat and the problem that the unsaturated polyester resin enters vacuum equipment, is solidified and affects the use of the equipment because the flow rate is too high can be solved. By using the method to produce glass reinforced plastic products, the problems that the flanges of the filament mat and the composite mats are not bonded firmly and are apt to be layered are solved, and the effects of enhancing the vacuum pumping strength of a glass reinforced plastic vacuum infusion process and strengthening the flanging performance of the glass reinforced plastic are taken.

Description

technical field [0001] The invention belongs to the technical field of wind power generator equipment, and in particular relates to a process for manufacturing glass fiber reinforced plastics by applying strong core felt vacuum infusion. Background technique [0002] The vacuum infusion process is widely used in the field of composite material preparation because of its high efficiency, safety, and low production cost, especially in the process of preparing wind turbine cabin covers. When the wind turbine cabin cover product uses the vacuum infusion process, a polyethylene spiral suction pipe is laid on the edge of the product mold, and the air felt is connected to the glass fiber base layer to achieve the purpose of vacuuming. However, the unsaturated polyester resin used in the vacuum infusion process has low viscosity and fast flow speed. After infiltrating the glass fiber laminated material, it is easy to quickly flow through the air felt and enter the air duct or vacuum...

Claims

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Application Information

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IPC IPC(8): B29C70/44B29C70/54
Inventor 廖国松吴裴
Owner TIANJIN DEFENG TECH
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