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Vacuumizing method for producing large-sized composite material member and composite air extracting layer

A composite material component and vacuum pumping technology, applied in the field of component structure, can solve problems such as rich resin, achieve the effects of reducing consumption, improving utilization rate, and reducing production cost

Active Publication Date: 2011-04-06
TIANJIN CRRC WIND POWER BLADE ENG CO LTD
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Problems solved by technology

[0008] The purpose of the present invention is to solve a series of problems caused by partial resin-rich parts in the mold surface when making large-scale composite components, and propose a method that can improve the suction efficiency of the pipeline and prevent resin from entering the suction pipe. The possibility of the road, and the repeated use of the exhaust pipeline, while ensuring the quality of the product, the vacuum method for the production of large composite components

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  • Vacuumizing method for producing large-sized composite material member and composite air extracting layer
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  • Vacuumizing method for producing large-sized composite material member and composite air extracting layer

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] figure 1 It is the air extraction system of the present invention. The vacuum air extraction device 101 in the pressure regulating pump is connected to the pressure regulating device 102 through a hose, and the pressure regulating device is connected to the mold cavity 106 through the main air extraction pipeline 103 through the air extraction port. When vacuuming, turn on the power supply of the vacuum pumping device 101, and adjust the pressure in the mold cavity by controlling the pressure regulating valve 105 and reading the pressure on the pressure display instrument 104. From the beginning to the mold cavity evacuation, until the end of product curing, the vacuum pumping device 101 will always be in working condition.

[0022] figure 2 It is a schematic diagram of the pipeline of the vacuum pumping system of the present invention, which describes the sc...

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Abstract

The invention discloses a vacuumizing method for producing a large-sized composite material member and a composite air extracting layer. At an air extract port of a die used by a vacuum pouring process, the continuous air extraction is always carried out on a die cavity system in the vacuum pouring process through an air extraction system with the composite air extracting layer, thereby ensuring that resin can be completely wetted in glass fiber cloth, avoiding the phenomenon that fiber filament is dried in a local area and effectively ensuring the appearance and the quality of products. The air extraction system at least comprises a pressure-adjusting pump, an air extraction pipeline, an air extraction port and the composite air extracting layer. The composite air extracting layer at least comprises an air leading and glue-absorbing material, a micropore ventilated membrane, an air leading supporting material and a sealing material.

Description

technical field [0001] The invention relates to a manufacturing method of a composite material component, in particular to a vacuum pumping method and component structure for manufacturing a large composite material component. It is mainly used in the manufacture of large composite components such as fan blades and yachts. Background technique [0002] When making large-scale composite components (such as wind turbine blades, yachts, etc.), the vacuum infusion process (VIP, VacuumInfusionProcess) is usually used. That is to say, the system is under certain negative pressure conditions, and the resin is injected into the reinforcing material from the outside, and then solidified and formed. The negative pressure of the system is formed by pumping out the air in the sealed system through a pressure regulating pump connected to an external suction pipe. The main principle of the VIP process is to first place a reinforced material preform designed according to the performance ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54
Inventor 梁自禄路忠林陈国娟崔志刚陈煌
Owner TIANJIN CRRC WIND POWER BLADE ENG CO LTD
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