CN102285124A - Manufacturing method of unidirectional fibre reinforced plastic flat plates - Google Patents
Manufacturing method of unidirectional fibre reinforced plastic flat plates Download PDFInfo
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- CN102285124A CN102285124A CN2011101194994A CN201110119499A CN102285124A CN 102285124 A CN102285124 A CN 102285124A CN 2011101194994 A CN2011101194994 A CN 2011101194994A CN 201110119499 A CN201110119499 A CN 201110119499A CN 102285124 A CN102285124 A CN 102285124A
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Abstract
The invention provides a method for manufacturing test unidirectional fibre reinforced plastic flat plates which have small pollution on environment and equipment and various resin impregnation modes. The method comprises the following steps: parallelly winding dry fibre which is not impregnated by resin on a mould to form a plate-shaped preformed body, wherein the mould is a flat plate mould which is provided with two long slots used for cutting off annular fibre; impregnating the preformed body with resin and solidifying the preformed body; and cutting off the annular fibre impregnated with the resin along the long slots of the mould, and demoulding to obtain two unidirectional fibre reinforced plastic plates.
Description
Technical field
The present invention relates to about the composite board preparation method, specifically, the present invention adopts fiber to twine legal system to be equipped with the method for test with unidirectional fibre reinforced plastics flat board.
Background technology
At present, known test has CNS GB/T 4550-2005 specified vacuum bag-hot pressing pot process and winding method with unidirectional fibre reinforced plastics flat panel production method.These two kinds of methods are non-adopting by equivalent ISO 9353:1991 and ISO1268-5:2001 standard respectively.Known vacuum bag-hot pressing pot process is that the prepreg of some and various technology auxiliary material are constituted the vacuum bag system, in autoclave under suitable temperature and pressure curing molding.Known winding method principle is to adopt the fiber be soaked with resin to be wound to the needed number of plies continuously on core, then by the pressing plate pressurization and be cured, once obtains two test flat plate molds.Existing winding method divides dry method to twine again and wet method is twined.It is to adopt the prepreg yarn to twine that existing dry method is twined.Existing wet method is wound into the method for making composite on the core, the mode moulding that belongs to online impregnation and twine synchronously after twining and adopting fiber impregnated resin immediately.
Vacuum bag in the said method-hot pressing pot process and dry method are wrapped in this link of composite panel material forming, because resin does not flow, viscosity is also limited, compare volatile matter with liquid resin very low, are not very big to the pollution of environment and equipment.But making prepreg needs dedicated system, and follow-up moulding simultaneously needs huge, expensive autoclave again, and common laboratory is difficult to possess.
It is simple that existing wet method is twined method equipment, and small investment is the first-selection that most laboratory prepares one-way slabs.But existing wet method is twined method and is also had shortcoming.Major defect has four aspects:
The resin content of first sheet material is controlled not precisely, made material mesopore rate height, and is of low quality.It is often on the low side also inhomogeneous that wet method is twined its resin content of sheet material that forms, so ISO 1268-5 requires will mend resin of brush after the certain number of plies of every winding.When twining in addition in the resin air can't drive out of, voidage is higher in the sheet material after the curing.
It two is that the resin impregnation method is single.It is to adopt continuous on-line mode impregnation that wet method is twined, make impregnation technology be restricted, can only adopt steeping vat impregnation mode, other such as can accurately control resin content, reduce porosity the vacuum introductory technique (Vacuum infusion process, VIP), resin TRANSFER METHOD impregnation technologies such as (RTM) can't realize.
It three is mould therefor complexity, and is not suitable for other impregnation technologies.Existing mold adds two block pressur plates by core and constitutes, and the bossed step in core both sides is not suitable for other technologies such as vacuum introductory technique, resin TRANSFER METHOD.
Four to be that existing wet method winding method is polluted big for it.Pollute to divide two aspects, resin is to the pollution of equipment with to the pollution of environment.In the existing wet method winding process, fiber is open from be impregnated into Wrapping formed process by resin, fiber behind the impregnating resin stick resin on the parts of process, the position that therefore may touch resin on the equipment needs anti-resin stain design, manufacture and design the requirement height, also to use the acetone equal solvent thoroughly to clean after the use, in case otherwise the resin curing that is bonded on the equipment can make the functions of the equipments forfeiture, safeguard very inconvenient.In addition, it is open dipping system that existing wet method is twined, and makes that the poisonous and harmful goods and materials in the resin evaporate in the atmosphere in a large number, unfavorable to environment and health of human body.The reason that causes producing the shortcoming that has wet method winding method now is that true property, opening and the unicity of the fibre resin adsorbance of online impregnation mode do not cause.
Summary of the invention
The present invention is directed to existing winding legal system and make the method for test, proposed a kind of making little to environment and equipment pollution, that the resin impregnation method is various and tested the method for using unidirectional fibre reinforced plastics flat board with unidirectional fibre reinforced plastics flat board.
Unidirectional fibre reinforced plastics flat panel production method of the present invention comprises the steps:
A, the dried fiber that will do not flooded by resin are wrapped on the mould abreast, form tabular pre-type body; Described mould is a flat plate mold, and flat plate mold is provided with two elongated slots that are used for the fibrae circulares cut-out;
B, with pre-type body impregnating resin and solidify;
C, the fibrae circulares that will flood resin along the elongated slot of mould cut off, and the demoulding obtains two unidirectional fibre reinforced plastics flat boards.
In brief, the technical solution adopted for the present invention to solve the technical problems is: adopt dried fiber to twine mould and obtain pre-type body, obtain sheet material by pre-type body impregnation curing again.The invention has the beneficial effects as follows: the resin dipping process carries out pre-type body, and the resin impregnation method that is suitable for pre-type body all can use, and makes the variation of impregnation mode; It is simple to twine used mould, does not relate to resin in the winding process, has reduced the pollution of resin to equipment to greatest extent, and equipment designing requirement reduction, maintenance cost are low.
Above-mentioned preparation method adopts hand to stick with paste method to pre-type body impregnating resin.
Above-mentioned preparation method, pre-type body impregnating resin adopts mold closing technology.So-called mold closing technology is exactly the process at the situation compacted under composite element of yin, yang mould closure.For example, adopt vacuum impregnation or resin transfer moulding method to pre-type body impregnating resin.Mold closing resin dipping process has reduced the pollution of resin to environment to greatest extent, helps environmental protection.The resin dipping process of pre-type body adopts vacuum aided and mold closing technology, the board quality height that makes, and resin distribution is even, content control accuracy height, and air is drawn out of before resin injects, so sheet material mesopore rate is low; Die cavity is through accurately processing, and sheet metal thickness control is accurate, surfacing is smooth.
Above-mentioned preparation method for conveniently stripped, is twined dried fiber after mould coated releasing agent or stick release sheet again.
Description of drawings
Fig. 1 is the dried fiber winding process schematic diagram of embodiment 1.
Fig. 2 is the pre-type body schematic diagram of embodiment 1
Fig. 3 is the mould front view of embodiment 1.
Fig. 4 is the mould schematic perspective view of embodiment 1.
Fig. 5 is the dried fiber winding process schematic diagram of embodiment 2.
Fig. 6 is the pre-type body schematic diagram of embodiment 2
Fig. 7 is the mould front view of embodiment 2.
Fig. 8 is the mould schematic perspective view of embodiment 2.
Among the figure, 1---fiber; 2---row's silk mouth; 3---core (mould); 4---long slot bore; 5---the unidirectional fibrage that is arranged in parallel; 6---(mould and winding driving mechanism) connecting hole; 7---twine driving mechanism; 8---(winding driving mechanism and mould) connecting hole.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment 1:
1, mould
2, preform is done
Core 3 is coated releasing agent or sticked release sheet, and a side minor face that again core 3 is had connecting hole 6 links to each other with winding driving mechanism 7;
Referring to Fig. 1, twine driving mechanism 7 and drive core 3 around the center line rotation that is parallel to the long limit of core, fiber 1 row of passing silk mouth 2 is on the core 3 that comes rotation, row silk mouth 2 moves along the center line that is parallel to the long limit of core simultaneously, by moving speed behind the winding number of plies of calculating, the fiber, twining the number of turns fiber is wrapped on the core abreast.The two ends of the fibrae circulares of winding are stretched out at the two ends of long slot bore 4.
Cut off fiber afterwards, and fibrous termination is firmly fixed on the core by mode such as pasting, cut off backward pull and kept to guarantee fiber; Take off the core that is wound with fiber, promptly obtain pre-type body, see accompanying drawing 2.
3, pre-type body impregnating resin, curing
According to different board quality requirements, select different resin impregnation methods, following several impregnation methods only for explanation the present invention, are not limited thereto when specifically implementing.
Impregnation mode one, sheet material is less demanding to the control of resin content, porosity, thickness, according to these characteristics, selects for use hand to stick with paste the method impregnating resin and be cured.
Impregnation mode two, sheet material has higher requirements to resin content, porosity, according to these characteristics, selects the vacuum impregnation impregnating resin for use and is cured.
Impregnation mode three, sheet material not only have higher requirement to the control of resin content, porosity, and thickness, surface smoothness etc. is also had higher control requirement, according to these characteristics, select resin transfer moulding method impregnating resin for use and are cured.
4, the demoulding
Along core long slot bore 4 ring-shaped material is cut off, the demoulding obtains two unidirectional fibre reinforced plastics flat boards.
Embodiment 2:
The present invention has improved existing winding legal system and has made the method for test with unidirectional fibre reinforced plastics flat board, proposes the making test unidirectional fibre reinforced plastics plate method little to environment and equipment pollution, that the resin impregnation method is various, board quality is good.Its basic process is: the dried fiber that will do not flooded by resin is wrapped on the core abreast, forms tabular pre-type body.The pre-type body that winding is finished carries out impregnation, curing by the impregnation technology of pre-type body, its process choice can be made various selections according to the requirement difference of final board quality, and suitable common impregnation technology comprises hand paste method, vacuum introductory technique, resin transfer moulding method etc.
Twining the mould that uses is single core (hard plate mould), does not have convex all around, and a long slot bore is respectively opened on both sides, and this long slot bore is used for the demoulding cutting operation of the unidirectional fibre reinforcing material flat plate mold of curing molding.
Beneficial effect of the present invention: the resin dipping process carries out pre-type body, and the resin impregnation method that is suitable for pre-type body all can use, and makes the variation of impregnation mode; The resin dipping process of pre-type body can adopt vacuum aided and mold closing technology, and the board quality height that makes has the advantage that resin distribution is even, the content control accuracy is high, and air is drawn out of before resin injects, so sheet material mesopore rate is low; Die cavity is through accurately processing, and sheet metal thickness control is accurate, surfacing is smooth; It is simple to twine used mould, does not relate to resin in the winding process, and impregnation adopts mold closing technology, has reduced the pollution of resin to equipment to greatest extent, and equipment designing requirement reduction, maintenance cost are low.Mold closing resin dipping process has reduced the pollution of resin to environment to greatest extent, helps environmental protection.
Claims (6)
1. unidirectional fibre reinforced plastics flat panel production method is characterized in that it comprises the steps:
A, the dried fiber that will do not flooded by resin are wrapped on the mould abreast, form tabular pre-type body; Described mould is a flat plate mold, and flat plate mold is provided with two elongated slots that are used for the fibrae circulares cut-out;
B, with pre-type body impregnating resin and solidify;
C, the fibrae circulares that will flood resin along the elongated slot of mould cut off, and the demoulding obtains two unidirectional fibre reinforced plastics flat boards.
2. preparation method as claimed in claim 1 is characterized in that: adopt hand to stick with paste method to pre-type body impregnating resin.
3. preparation method as claimed in claim 1 is characterized in that: pre-type body impregnating resin adopts mold closing technology.
4. preparation method as claimed in claim 3 is characterized in that: adopt vacuum impregnation to pre-type body impregnating resin.
5. preparation method as claimed in claim 3 is characterized in that: adopt the resin transfer moulding method to pre-type body impregnating resin.
6. preparation method as claimed in claim 1 is characterized in that: twine dried fiber again after mould is coated releasing agent or sticked release sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101194994A CN102285124A (en) | 2011-04-30 | 2011-04-30 | Manufacturing method of unidirectional fibre reinforced plastic flat plates |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101194994A CN102285124A (en) | 2011-04-30 | 2011-04-30 | Manufacturing method of unidirectional fibre reinforced plastic flat plates |
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| CN102285124A true CN102285124A (en) | 2011-12-21 |
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| CN2011101194994A Pending CN102285124A (en) | 2011-04-30 | 2011-04-30 | Manufacturing method of unidirectional fibre reinforced plastic flat plates |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108068228A (en) * | 2016-11-17 | 2018-05-25 | 洛阳尖端技术研究院 | For the auxiliary device of prepreg trial-production and the trial-production method of prepreg |
| CN112497784A (en) * | 2020-10-13 | 2021-03-16 | 北京玻钢院复合材料有限公司 | Preparation device and preparation method of carbon fiber composite material tensile sample |
| CN113232323A (en) * | 2021-04-29 | 2021-08-10 | 上海新力动力设备研究所 | Mold and method for manufacturing resin-based fiber composite material wound unidirectional plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004042610A (en) * | 2002-05-13 | 2004-02-12 | Hibi:Kk | Method for molding frp molded product, frp molded product, skin plate of water gate flap, beam of water gate flap, gusset plate of water gate flap, water gate flap, gate sheet of water gate, product for channel/river/lake/seashore or its component, pedestrian overpass or its component and stepboard of supervision bridge or pedestrian overpass |
| CN101462369A (en) * | 2008-12-30 | 2009-06-24 | 黄争鸣 | Method for preparing pipe sheet for heat-exchange facility and products produced thereby |
| CN101678617A (en) * | 2007-03-29 | 2010-03-24 | 古瑞特（英国）有限公司 | Fibre-reinforced composite moulding and manufacture thereof |
-
2011
- 2011-04-30 CN CN2011101194994A patent/CN102285124A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004042610A (en) * | 2002-05-13 | 2004-02-12 | Hibi:Kk | Method for molding frp molded product, frp molded product, skin plate of water gate flap, beam of water gate flap, gusset plate of water gate flap, water gate flap, gate sheet of water gate, product for channel/river/lake/seashore or its component, pedestrian overpass or its component and stepboard of supervision bridge or pedestrian overpass |
| CN101678617A (en) * | 2007-03-29 | 2010-03-24 | 古瑞特（英国）有限公司 | Fibre-reinforced composite moulding and manufacture thereof |
| CN101462369A (en) * | 2008-12-30 | 2009-06-24 | 黄争鸣 | Method for preparing pipe sheet for heat-exchange facility and products produced thereby |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108068228A (en) * | 2016-11-17 | 2018-05-25 | 洛阳尖端技术研究院 | For the auxiliary device of prepreg trial-production and the trial-production method of prepreg |
| CN108068228B (en) * | 2016-11-17 | 2021-05-25 | 洛阳尖端技术研究院 | Auxiliary device for pre-production of prepreg and pre-production method of prepreg |
| CN112497784A (en) * | 2020-10-13 | 2021-03-16 | 北京玻钢院复合材料有限公司 | Preparation device and preparation method of carbon fiber composite material tensile sample |
| CN112497784B (en) * | 2020-10-13 | 2024-04-12 | 北京玻钢院复合材料有限公司 | Preparation device and preparation method of carbon fiber composite tensile sample |
| CN113232323A (en) * | 2021-04-29 | 2021-08-10 | 上海新力动力设备研究所 | Mold and method for manufacturing resin-based fiber composite material wound unidirectional plate |
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Application publication date: 20111221 |