CN103231465B - Method for fibrous composite material vacuum impregnation device - Google Patents

Method for fibrous composite material vacuum impregnation device Download PDF

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Publication number
CN103231465B
CN103231465B CN201310136670.1A CN201310136670A CN103231465B CN 103231465 B CN103231465 B CN 103231465B CN 201310136670 A CN201310136670 A CN 201310136670A CN 103231465 B CN103231465 B CN 103231465B
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Prior art keywords
maceration extract
container
vacuum
impregnation
steeper
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CN103231465A (en
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高希光
宋迎东
李龙
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Abstract

The invention relates to a fibrous composite material vacuum impregnation device which comprises a vacuum heating box, an impregnation vessel, an impregnation liquid vessel bracket and an impregnation liquid vessel, wherein the impregnation liquid vessel and the impregnation liquid vessel bracket are installed together; the impregnation vessel, impregnation liquid vessel bracket and impregnation liquid vessel are arranged in the vacuum heating box; and the fibrous composite material vacuum impregnation device also comprises a fiber preform arranged in the impregnation vessel. The fibrous composite material vacuum impregnation device does not need to suck the impregnation liquid through negative pressure, is simple to operate and easy to implement, does not need abundant impregnation liquid, and can ensure the vacuum degree in the impregnation process.

Description

The using method of the vacuum impregnation plant of fibrous composite
Technical field:
The present invention relates to a kind of using method of vacuum impregnation plant of fibrous composite, particularly relate to a kind of using method of vacuum impregnation plant of the fibrous composite based on freezing-melting principle, belong to impregnating equipment technical field.
Background technology:
Fibre reinforced composites have the feature of high specific stiffness, specific strength, are widely used in the industries such as military affairs, the energy and communications and transportation.Vacuum impregnation is the important step in fibrous composite preparation flow.Vacuum impregnation is under vacuum, by suction function etc. by impregnation fluid in other solid matters, to reach the material property improving solid matter or the technology meeting certain particular requirement.
At present, for the infusion process of composite as disclosed the shaping method of polymer matrix composites vacuum impregnation in Chinese patent CN102292201A " manufacture method of RTM forming method and fiber-reinforced resin molding "; The vacuum impregnation one-step moulding method of fibre reinforced materials goods is disclosed in Chinese patent CN200810038149.3 " under vacuum impregnation pressure the one-step moulding method of article of fiber reinforced plastics and plastic products thereof "; A kind of vacuum impregnation technique of fan blade is disclosed in Chinese patent CN 101186110A " vacuum impregnation technique of fan blade "; Disclose one in Chinese patent CN1568246A " equipment of vacuum impregnation and method " and vacuum-impregnated method is carried out to small piece material; A kind of immersion system equipment of longitude and latitude overlapped non-weaving compound material is disclosed in Chinese patent CN 102505391 A " a kind of vacuum impregnation plant of fibrous composite and method ".
In above-mentioned fibrous composite vacuum impregnation plant, general principle can be divided into two classes.One class methods will fill the container vacuum-pumping of fiber preform by vacuum plant, then utilize negative pressure by maceration extract from another one container suction impregnation chamber.As: " manufacture method of RTM forming method and fiber-reinforced resin molding ", " under vacuum impregnation pressure the one-step moulding method of article of fiber reinforced plastics and plastic products thereof ", " vacuum impregnation technique of fan blade " and " equipment of vacuum impregnation and method ".Easily there is line clogging in these class methods, dipping process needs a large amount of maceration extracts, is not suitable for expensive maceration extract (as: Polycarbosilane).In addition, if the suction flow control of maceration extract is improper, under powerful negative pressure, easily suck air, reduce vacuum-impregnated effect.The lifting that another kind of method controls fiber by mechanical device reaches " first vacuumizing, the object of rear dipping ".These class methods need complicated mechanical device, require higher, otherwise are not easy to reach vacuum-impregnated object, cause fiber preform inside to go back residual air, easily produce bubble after dipping the sealing property of transmission device.
Therefore, necessary the deficiency solving prior art is improved to prior art.
Summary of the invention:
The invention provides a kind of vacuum impregnation plant and method of fibrous composite, it is without the need to by negative-pressure ward maceration extract, simple to operate, easily realize, and without the need to a large amount of maceration extract, and can guarantee dipping process vacuum.
The present invention adopts following technical scheme: a kind of vacuum impregnation plant of fibrous composite, and it comprises: heating in vacuum case;
Steeper;
Maceration extract receptacle stand;
Maceration extract container, together with described maceration extract container is installed on maceration extract receptacle stand, described steeper, maceration extract receptacle stand and maceration extract container are all positioned in described heating in vacuum case, and the vacuum impregnation plant of described fibrous composite also includes the fiber preform be installed in described steeper.
Described maceration extract receptacle stand is by four pillar support, and top is a flat board, and dull and stereotyped middle part arranges porose, and described aperture is greater than maceration extract container opening diameter.
Described maceration extract container is taper, and the opening of described maceration extract container by the flat board of described maceration extract receptacle stand, and is stuck on flat board.
Described steeper is metal square container.
The present invention also adopts following technical scheme: a kind of using method of vacuum impregnation plant of fibrous composite, and it includes following steps:
By lay smooth for fiber preform in steeper;
Be placed in by maceration extract in maceration extract container, then carry out freezing processing, maceration extract forms solid;
Be positioned over downwards by maceration extract perforated container in maceration extract receptacle stand, opening, by the hole of maceration extract receptacle stand plate center, relies on maceration extract lower vessel portion to be stuck on flat board;
Steeper is put into heating in vacuum case, then the maceration extract receptacle stand with maceration extract container is positioned over above steeper;
Vacuumized by heating in vacuum case, and keep vacuum state a period of time, then heating is until freezing maceration extract melts, and the maceration extract after thawing flows to precast body overhead surface and covers, and realizes vacuum impregnation.
The present invention has following beneficial effect:
(1). equipment is simple, easily realizes;
(2). there is not the pipeline of suction maceration extract, without the need to cleaning;
(3). whole dipping process carries out in an airtight heating in vacuum case, there is not the process of suction maceration extract, easily ensures vacuum.
Accompanying drawing illustrates:
Fig. 1 is the perspective view of the vacuum impregnation plant of fibrous composite of the present invention.
Wherein:
1-heating in vacuum case, 2-bleeding point, 3-fiber preform, 4-maceration extract receptacle stand, 5-maceration extract container, 6-maceration extract, 7-steeper, 8-air inlet.
Detailed description of the invention:
Please refer to shown in Fig. 1, the vacuum impregnation plant of fibrous composite of the present invention comprises: heating in vacuum case 1, steeper 7, maceration extract receptacle stand 4 and maceration extract container 5.Wherein maceration extract receptacle stand 4 is by four pillar support, and top is a flat board, and dull and stereotyped middle part is porose, and aperture is a bit larger tham maceration extract container 5 opening diameter.Maceration extract container 5 is taper, and opening, by the flat board of maceration extract receptacle stand 4, relies on conical flask bottom to be stuck on flat board.Steeper 7 is metal square container, built with fibrous composite (i.e. fiber preform 3).Whole device is placed in heating in vacuum case 1, and heating in vacuum case 1 also includes bleeding point 2 and air inlet 8.
During use, by lay smooth for fibrous composite (i.e. fiber preform 3) in steeper 7; Be placed in by maceration extract 6 in maceration extract container 5, then carry out freezing processing, maceration extract 6 forms solid; Be positioned in maceration extract receptacle stand 4 downwards by maceration extract container 5 perforate, maceration extract container 5 opening is by the hole of maceration extract receptacle stand 4 plate center, and maceration extract container 5 relies on maceration extract container 5 bottom to be stuck on flat board.Because maceration extract 6 is frozen into solid, can not flow out.Steeper 7 is put into heating in vacuum case 1, then the maceration extract receptacle stand 4 with maceration extract container 5 is positioned over above steeper 7, form appearance as shown in Figure 1; Close air inlet 8, adopt vavuum pump to bleed from bleeding point 2, until heating in vacuum case 1 internal gas pressure is evacuated to 2Pa, and keep this atmospheric pressure state a period of time.Then close bleeding point 2, heating, vacuum heating cabinet 1 is until freezing maceration extract 6 melts, and the maceration extract after thawing flows to fiber preform 3 overhead surface and covers and be full of steeper 7.After fiber preform 3 fully dipping, remove the pressure in heating in vacuum case, open heating in vacuum case, fiber preform 3 can be taken out.
The vacuum impregnation plant of fibrous composite of the present invention, it is without the need to by negative-pressure ward maceration extract, simple to operate, easily realize, and without the need to a large amount of maceration extract, and can guarantee dipping process vacuum.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.

Claims (1)

1. a using method for the vacuum impregnation plant of fibrous composite, is characterized in that:
Fiber preform is provided;
By lay smooth for fiber preform in steeper, described steeper is metal square container;
Be placed in by maceration extract in taper maceration extract container, then carry out freezing processing, maceration extract forms solid;
Maceration extract perforated container is positioned over downwards in maceration extract receptacle stand, together with described maceration extract container is installed on maceration extract receptacle stand, described maceration extract receptacle stand is by four pillar support, top is a flat board, dull and stereotyped middle part arranges porose, described aperture is greater than maceration extract container opening diameter, and the opening of described maceration extract container, by the hole of maceration extract receptacle stand plate center, relies on maceration extract lower vessel portion to be stuck on flat board;
Steeper is put into heating in vacuum case, be then positioned over above steeper by the maceration extract receptacle stand with maceration extract container, described steeper, maceration extract receptacle stand and maceration extract container are all positioned in described heating in vacuum case;
Vacuumized by heating in vacuum case, and keep vacuum state a period of time, then heating is until freezing maceration extract melts, and the maceration extract after thawing flows to precast body overhead surface and covers, and realizes vacuum impregnation.
CN201310136670.1A 2013-04-19 2013-04-19 Method for fibrous composite material vacuum impregnation device Active CN103231465B (en)

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CN201310136670.1A CN103231465B (en) 2013-04-19 2013-04-19 Method for fibrous composite material vacuum impregnation device

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Application Number Priority Date Filing Date Title
CN201310136670.1A CN103231465B (en) 2013-04-19 2013-04-19 Method for fibrous composite material vacuum impregnation device

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CN108485884A (en) * 2018-05-10 2018-09-04 湖南康尔佳制药股份有限公司 A kind of device and method preparing rheumatism wine
CN109551659B (en) * 2018-12-19 2021-03-23 航天特种材料及工艺技术研究所 Composite impregnation tool and application thereof

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US8372327B2 (en) * 2007-09-13 2013-02-12 The Boeing Company Method for resin transfer molding composite parts
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