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RTM hot-pressing auxiliary forming device and operation method

A technology of auxiliary molding and pressure, which is applied in the field of composite material molding, can solve the problems of reducing impregnation time and low molding efficiency, and achieves the effects of shortening molding time, improving efficiency, and convenient operation

Inactive Publication Date: 2018-02-06
DALIAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

In order to solve the problem of low molding efficiency, a device that combines multiple pressurization and heating the mold to increase the temperature of the mixed gel is designed, thereby greatly reducing the impregnation time and improving the molding efficiency; and setting a recovery device to reduce the mixing gel. waste, cost savings

Method used

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  • RTM hot-pressing auxiliary forming device and operation method

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Embodiment Construction

[0026] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

[0027] Such as figure 1 As shown, an RTM autoclave auxiliary molding device includes a pressure control system, a fat storage device 3, a limit valve 4, a gel mixture 5, a rubber stopper 6, a pipe fixing device 7, a fat inlet conduit 8, a heating mold 9, Re-shaped heating tube 10, high temperature film 11, reinforcing material 12, fat outlet conduit 13 and reflux bottle 14;

[0028] The pressure control system includes a jack 1, a pressure display 2, a pipe fixing device 7 and a vacuum pump 15;

[0029] The jack 1 is provided with a pressure indicator 2 for displaying the pressure value, and its output arm end is connected with a rubber plug 6, and the rubber plug 6 is used to seal the grease holding device 3, and the output arm of the jack 1 exerts pressure on it. Then increase the fat-feeding pressure, along wit...

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Abstract

The invention provides an RTM hot-pressing auxiliary forming device and an operation method, belonging to the technical field of composite forming. The RTM hot-pressing auxiliary forming device comprises a pressure control system, a resin containing device, a limiting valve, a gel, a rubber plug, a fixing pipe device, a resin feeding pipe, a heating mold, a clip-shaped heating pipe, a high-temperature film, an enhanced material, a resin discharging pipe and a backflow bottle. After the device is mounted, the temperature of the heating mold is adjusted according to the resin characteristics andthe liquidity of the resin is kept to be in the optimal state; the suitable pressure scope is confirmed according to the volume of the gel and the area of the enhanced material; the pressure value isincreased under the combined action of a jack and a vacuum pump, and the dipping speed, namely, flowing speed, of the gel is increased. The invention provides the device and the method for increasingthe RTM forming efficiency and is capable of realizing the increasing of the dipping speed and greatly shortening the forming time.

Description

technical field [0001] The invention belongs to the technical field of composite material molding, and relates to an RTM molding device and a molding method. Background technique [0002] Composite materials are widely used in aviation, aerospace, high-speed rail, automobiles and other fields due to their high specific strength, high specific stiffness, fatigue resistance, and corrosion resistance. Among the various molding processes of composite materials, the RTM molding process has the advantages of simple operation, small amount of trimming of molded products, and low production cost, so it is widely used in the molding and processing of various composite material products. [0003] The resin transfer molding method (RTM method) is to transport the mixture (mixed gel) of a certain proportion of resin and curing agent to the closed mold of the pre-placed fiber reinforced material under a certain pressure, and impregnate the mold in the mold. After the impregnation is com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/54
CPCB29C70/48B29C70/54
Inventor 王一奇程平鲍永杰刘学术高航
Owner DALIAN UNIV OF TECH
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