CN108237706A - Vacuum infusion method for fiber products - Google Patents
Vacuum infusion method for fiber products Download PDFInfo
- Publication number
- CN108237706A CN108237706A CN201611217531.1A CN201611217531A CN108237706A CN 108237706 A CN108237706 A CN 108237706A CN 201611217531 A CN201611217531 A CN 201611217531A CN 108237706 A CN108237706 A CN 108237706A
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- Prior art keywords
- resin
- fibre
- quality
- vacuum
- glass fibre
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- 239000000835 fiber Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000009755 vacuum infusion Methods 0.000 title claims abstract description 50
- 239000011347 resin Substances 0.000 claims abstract description 139
- 229920005989 resin Polymers 0.000 claims abstract description 139
- 239000003365 glass fiber Substances 0.000 claims abstract description 52
- 239000004744 fabric Substances 0.000 claims abstract description 35
- 239000003292 glue Substances 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000001802 infusion Methods 0.000 claims abstract description 11
- 230000010412 perfusion Effects 0.000 claims description 24
- 239000012528 membrane Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000005429 filling process Methods 0.000 description 6
- 238000005303 weighing Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Abstract
The present invention provides a vacuum infusion method for a fiber product formed by curing glass fibers and a resin, the vacuum infusion method for a fiber product including: calculating the resin mass required to be absorbed by the glass fiber in the fiber product and the resin mass lost in the vacuum infusion process; laying glass fiber and an infusion auxiliary material on a substrate, wherein the infusion auxiliary material comprises demolding cloth, a flow guide net and a vacuum bag; laying an adhesive injection pipeline and an air extraction pipeline; sealing the contact part of the vacuum bag and the substrate to form a closed space between the vacuum bag and the substrate, and arranging the glass fiber, the flow guide net and the demoulding device in the closed space; arranging a control valve in the glue injection pipeline; vacuumizing the closed space by using an air pumping pipeline; opening the control valve to start resin injection; when the mass of resin injected reaches the sum of the mass of resin that the glass fibers are required to absorb and the mass of resin lost during vacuum infusion, the control valve is closed.
Description
Technical field
The present invention relates to a kind of vacuum infusion methods for fibre.In particular it relates to one kind being capable of essence
The vacuum infusion method of true control fiber product gel content.
Background technology
In the manufacturing field of fibre, mostly just using vacuum infusion molding process for compound.For fibre etc.
The control of resin content is seldom in composite material.In existing vacuum infusion molding process for compound, manufactured fibre out
Gel content is often uncontrollable, and fibre expectation gel content there are certain deviation, and then lead to the items of fibre
Design value is not achieved in performance.
It is that resin of leaving is irrigated until saturation in common vacuum infusion process, in entire perfusion system, because
The gel content of this obtained fibre depends entirely on the absorbent final amount of resin of glass fibre institute, and non-textile
The gel content ideally of design.
Since in vacuum infusion process, there is no the effective means of control fiber product gel content, also appoint without using
What effective mode controls resin injection rate, leads to that bottom can only be filled into, until entire fiber base material fills thoroughly completely, so
The gel content of final fibre is higher, wastes a large amount of resin, in addition the quality of fibre also increased.
In large-scale fibre, used unnecessary amount of resin is more.
In addition, there are certain deviations for the practical gel content and desired value of fibre, the performance of fibre is led to
Loss.If fibre gel content expected relative value is relatively low, mechanical property becomes strong, but fatigue life can reduce；If
Fibre gel content is higher, and it will cause mechanical properties decreases, are easy to destroy.
Therefore, for the exploitation of the method by accurately calculating control resin content and resin infusion speed, there are demands.
In addition, in the initial stage of vacuum perfusion process process, if rate of flooding is too fast, gas bubbles left can be caused to exist
In fibre.Therefore, for solving the problems, such as perfusion initial stage excessive velocities, so as to avoid the exploitation of generation bubble, there are demands.
Invention content
In view of the above problem of the prior art, inventor are made that the present invention.The purpose of the present invention is to provide a kind of use
In the vacuum infusion method of fibre, in this way, the gel content of fibre can be accurately controlled, increase fiber system
Product service life improves fibre yield rate and substantially reduces resin usage amount.
In addition, explanation, term of the invention " gel content " are interpreted as the percentage that resin quality accounts for composite material quality
Number.Fibre can be the composite material (may be simply referred to as FRP below) of fibre reinforced plastics, alternatively referred to as fiber reinforcement base
Material.
According to the first aspect of the invention, a kind of vacuum infusion method for fibre, the fibre are provided
Fiber products are formed by glass fibre and resin solidification, wherein, the priming by vacuum side for being used to manufacture fibre
Method includes：Calculate the resinite being lost in the resin quality and vacuum infusion process absorbed needed for glass fibre in fibre
Amount；Glass fibre and perfusion auxiliary material are laid on substrate, the perfusion auxiliary material includes release cloth, flow-guiding screen and vacuum bag；It is laid with
Injecting glue pipeline and exhaust pipe；The contact site of vacuum bag and substrate is sealed, confined space is formed between vacuum bag and substrate,
Glass fibre, flow-guiding screen and demoulding are arranged in confined space；Control valve is arranged in injecting glue pipeline；Utilize exhaust pipe pair
The confined space vacuumizes；Control valve is opened to start to inject resin；When the quality of the resin of injection reaches needed for glass fibre
During the sum of resin quality being lost in the resin quality and vacuum infusion process of absorption, closing control valve.
According to the second aspect of the invention, the resin quality M1 of absorption according to needed for formula (a) calculates glass fibre,
According to the resin quality M being lost in formula (b), (c) and (d) calculating vacuum infusion processLoss=M2+M3+M4, wherein, formula
(a) it is M1=m1/ (1- ψ)-m1, wherein, ψ is the gel content needed for glass fibre, and m1 is the quality of glass fibre；Formula (b)
For M2=β × m2, for calculating the resin quality of flow-guiding screen loss, wherein, M2 is the resin quality of flow-guiding screen loss, and β is single
The resin quality that the flow-guiding screen of position quality is lost, m2 are the quality of flow-guiding screen；Formula (c) is M3=α × m3, de- for calculating
The resin quality of mould cloth loss, wherein, M3 is the resin quality of release cloth loss, and α is lost by the release cloth of unit quality
Resin quality, m3 are the quality of release cloth；Formula (d) is M4=θ × L, for calculating the remaining resinite in injecting glue pipeline
Amount, wherein, M4 is the remaining resin quality in injecting glue pipeline, and θ is remaining resin quality in the injecting glue pipeline of unit length,
L is the length of injecting glue pipeline.
According to the third aspect of the invention we, when being laid with glass fibre and perfusion auxiliary material on substrate, in glass fibre
At least both sides setting rigid side walls ensure the thickness of fibre.
According to the fourth aspect of the invention, on substrate be laid with glass fibre and perfusion auxiliary material when, on substrate according to
Secondary stacking release cloth, glass fibre, release cloth and flow-guiding screen, then overlay rigid panel on rigid side walls.
According to the fifth aspect of the invention, fiber system is surrounded by substrate, rigid side walls, rigid panel and vacuum bag
Product resin infusion space.
According to the sixth aspect of the invention, when being laid with injecting glue pipeline and exhaust pipe, exhaust pipe is described close
The part closed in space helically tracheae shape and is coated by film structural component, and the film structural component is by only allowing gas to pass through without allowing
Liquid by membrane material formed.
According to the seventh aspect of the invention, the control valve is flow velocity control valve.
According to the eighth aspect of the invention, when the resin being perfused is close to the sum of resin quality calculated, operation
Flow velocity control valve is to reduce resin infusion speed.
Using the vacuum infusion method according to the present invention for fibre, containing for fibre can be accurately controlled
Glue amount increases fibre service life, improves fibre yield rate and substantially reduces resin usage amount.
Description of the drawings
By the description to embodiment carried out below in conjunction with the accompanying drawings, above-mentioned and/or other objects and advantages of the invention
It will become apparent, wherein：
Fig. 1 is the flow chart of the vacuum infusion method for fibre；
Fig. 2 is the schematic cross-section of the vacuum infusion method for fibre；And
Fig. 3 is the vertical view of the vacuum infusion method for fibre.
Specific embodiment
Exemplary embodiment of the present invention will now be described in detail, the example of the embodiment is shown in the drawings, wherein, phase
With the identical part of label instruction.It will illustrate the embodiment by referring to accompanying drawing below, to explain the present invention.
Fig. 1 is the flow chart of the vacuum infusion method for fibre.Fig. 2 is for the priming by vacuum side of fibre
The schematic cross-section of method.Fig. 3 is the vertical view of the vacuum infusion method for fibre.
In an embodiment according to the present invention, as shown in Figures 1 to 3, include such as the vacuum infusion method of fibre
Lower step：Calculate what is be lost in the resin quality and vacuum infusion process absorbed needed for glass fibre 4 in fibre first
Resin quality.In embodiment, can glass fibre 4 be determined according to the performance of specific material and the specific requirements of user needed for suction
The resin quality of receipts.For example, form of the glass fibre 4 using glass fabric.
Then, it is laid with glass fibre 4 and perfusion auxiliary material on the substrate 5.Auxiliary material is perfused and includes flow-guiding screen 2, release cloth 3 and true
Empty bag 1.
Then, injecting glue pipeline 7 and exhaust pipe 8 are laid with.In embodiment, as shown in Fig. 2, injecting glue pipeline 7 and exhaust tube
Road 8 is respectively positioned on the top of substrate 5.In addition, the part in the confined space that exhaust pipe 8 is surrounded in vacuum bag 1 and substrate 5 is in
Spiral tube shape and (not shown) is coated by film structural component, the film structural component is by only allowing gas to pass through without allowing liquid
By membrane material formed.During the vacuum infusion resin carried out later, which prevents resin from flowing out vacuum systems,
Ensure that the resin entered is consistent with vacuum valve metering.In the present embodiment, for example, exhaust pipe 8 by T-shaped triple valve from closed
Space is evacuated outward, so that confined space forms vacuum systems.In the pumping process carried out later, due to film structural component packet
Cover part of the exhaust pipe 8 in confined space, that is to say, that air can be discharged to by film structural component via exhaust pipe 8
Outside, so that confined space forms vacuum systems.
For example, the contact site of vacuum bag 1 and substrate 5 is sealed by sealant tape 6, so as in vacuum bag 1 and substrate 5
Between form confined space.That is, vacuum bag 1 and substrate 5 surround confined space.Glass fibre 4, flow-guiding screen 2 and demoulding
Cloth 3 is placed in above-mentioned confined space.In an embodiment of the present invention, as shown in Fig. 2, stack gradually on the substrate 5 release cloth 3,
Glass fibre 4, release cloth 3 and flow-guiding screen 2.
As shown in figure 3, then, control valve 11 is arranged in injecting glue pipeline 7.In embodiment, which is stream
Measure flow control valve.The control valve 11 is the multi-functional valve that flow is controlled using high-precision guide's mode, and precision is higher, is protected
It is controllable that card flows into vacuum systems resin flow flow velocity.
Then, the confined space surrounded using exhaust pipe 8 to vacuum bag 1 and substrate 5 is vacuumized, and opens control valve
11, start to inject resin, when the quality of the resin of injection reaches the resin quality absorbed needed for glass fibre 4 and priming by vacuum
During the sum of resin quality being lost in journey, closing control valve 11.Specifically, starting perfusion phase, controlled using control valve 11
The threshold speed of resin stream, then slightly increase resin injection rate until decontrol completely.It is calculated when the resin being perfused is close
The sum of resin quality when, operation control valve 11 is to reduce resin infusion speed.
In addition, before resin is perfused, the resin accommodation tool equipped with resin is placed on weighing instruments and is zeroed.
In the present embodiment, for example, the bucket equipped with resin is placed on weighing instruments, and adjustment instrument is zeroed, convenient for reading later.
In subsequent filling process, the numerical value on continuous observation weighing instruments.Reach 4 institute of glass fibre when injection resin quality is close
During the quality sum of resin quality being lost in the resin quality and vacuum infusion process that need to absorb, flow velocity control valve is used
11 slow down resin injection rate, are damaged until being fully achieved in the resin quality and vacuum infusion process that are absorbed needed for glass fibre 4
The quality sum of the resin quality of consumption stops injecting glue.
In addition, in an embodiment of the present invention, when being laid with glass fibre 4 and perfusion auxiliary material on the substrate 5, in glass fibre
4 at least both sides (in the present embodiment in both sides) set rigid side walls 9 to ensure the thickness of fibre, rigid side walls 9
It is indeformable under the vacuum pressures and in the above-mentioned confined space.By the rigid side walls 9, fibre can be efficiently controlled
Finished product thickness.
In addition, in an embodiment of the present invention, when being laid with glass fibre 4 and perfusion auxiliary material on the substrate 5, on the substrate 5
Stack gradually release cloth 3, glass fibre 4, release cloth 3 and flow-guiding screen 2, then by rigid panel 10 overlay rigid side walls 9 it
On.Rigid panel 10 is light weight and rigidity is high is unlikely to deform backing plate, can be ensured that fibre upper surface is smooth.Rigidity
Top plate 10 is contacted and is compacted with above-mentioned rigid side walls 9, so as to form the membrane cavity of predetermined (standard) thickness.That is, pass through
Substrate 5, rigid side walls 9, rigid panel 10 and vacuum bag 1 surround fibre resin infusion space.According to the pre- of fibre
Determine thickness, the size in adjustment fiber products resin infusion space, so as to containing for effectively further control fiber product
Glue amount.
In addition, before being irrigated, need to ensure that the confined space that vacuum bag 1 and substrate 5 are surrounded forms vacuum body
System, will be in the resin infusion in the bucket for example equipped with resin to above-mentioned confined space using atmospheric pressure.
In addition, in filling process, resin is made to enter confined space, resin court via injecting glue pipeline 7 using atmospheric pressure
It flows to flow-guiding screen 2, and is slowly immersed in glass fibre 4 downwards while being moved along flow-guiding screen 2.Flow-guiding screen 2 can
Efficiently control the flowing of resin, so as to fulfill efficient perfusion, and flow-guiding screen 2 can also filter out it is remaining few in resin
Measure gas.
In entire vacuum infusion process, perfusion initial stage needs to control resin injection rate using control valve 11, avoids filling
It is too fast to note speed, causes the bubble in system that cannot exclude completely, and then lead to gas bubbles left in fibre.
Below for the resin being lost in the resin quality and vacuum infusion process how calculated needed for glass fibre 4
Quality is described in detail.
In practical vacuum filling process, other than glass fibre 4 and resin solidification are fibre, flow-guiding screen 2, injecting glue
A certain amount of resin can be adsorbed in the auxiliary materials such as pipeline 7, release cloth 3, causes a part of resin, vacuum are lost in vacuum infusion process
The resin adsorbed in some auxiliary materials such as bag then can be neglected.As long as thus by calculate various auxiliary materials a coabsorption total tree
Lipid amount (resin quality being lost in vacuum infusion process), in addition ideally resinite needed for glass fibre 4
Amount controls the resin in vacuum infusion process to inject gross mass, so as to obtain having desired gel content by way of weighing
Fibre.
By taking simplest laboratory is using vacuum perfusion process manufacture FRP plate material as an example, need to use in filling process
The auxiliary materials such as flow-guiding screen 2, release cloth 3, injecting glue pipeline 7, vacuum bag 1, film structural component (such as VAP films, specially one-way ventilating film), root
Do experiment according to data with existing or in advance and predict the resin quality that related auxiliary material unit mass is lost, then with 4 institute of glass fibre
The resin quality that need to be absorbed is summed, so as to need the resin gross mass being perfused.By weighing instruments together with flow velocity
Control valve accurately controls the resin quality of perfusion, when the resin quality of perfusion reaches calculated value, stops perfusion.Calculate glass fibers
In the resin quality being lost in the resin quality and vacuum infusion process that are absorbed needed for dimension 4, specific calculation is as follows.
Resin quality M1 according to needed for formula (a) calculates glass fibre 4 calculates vacuum according to formula (b), (c) and (d)
The resin quality M being lost in filling processLoss=M2+M3+M4, wherein, formula (a) is M1=m1/ (1- ψ)-m1, and wherein ψ is glass
Gel content needed for glass fiber 4, m1 are the quality of glass fibre 4.Specifically, the gross mass of glass fibre 4, Ran Hougen are first measured
The resin quality absorbed needed for glass fibre 4 is calculated according to the value of the obtained gel content of the demand of user.
Formula (b) is M2=β × m2, for calculating the resin quality of the loss of flow-guiding screen 2, wherein, M2 is damaged by flow-guiding screen 2
The resin quality of consumption, the resin quality that β is lost by the flow-guiding screen 2 of unit quality, m2 are the quality of flow-guiding screen 2.Specifically, exist
In the case of keeping 2 specification of flow-guiding screen constant, the quality of same flow-guiding screen 2 before and after perfusion is measured by modes such as experiments, you can
Calculate the resin quality that unit flow-guiding screen is absorbed；The gross mass of flow-guiding screen 2 used is measured again, then according to above-mentioned formula
(b) the resin quality M2 that flow-guiding screen 2 is lost is calculated.
Formula (c) is M3=α × m3, for calculating the resin quality of the loss of release cloth 3, wherein, M3 is damaged by release cloth 3
The resin quality of consumption, the resin quality that α is lost by the release cloth 3 of unit quality, m3 are the quality of release cloth 3.Specifically, exist
In the case of keeping 3 cloth specification of release cloth constant, the quality of release cloth 3 before and after perfusion is measured by modes such as experiments, you can calculate
Go out the resin quality that unit release cloth is absorbed；The quality of release cloth 3 used is measured again, is then calculated according to formula (c) de-
The resin quality M3 that mould cloth 3 is lost.
Formula (d) is M4=θ × L, for calculating the remaining resin quality in injecting glue pipeline 7, wherein, M4 is in injecting glue
Remaining resin quality in pipeline 7, θ are remaining resin quality in the injecting glue pipeline 7 of unit length, and L is the length of injecting glue pipeline 7
Degree.Specifically, in the case where keeping 7 specification of injecting glue pipeline constant, injecting glue pipeline 7 before and after being perfused is measured by modes such as experiments
Quality, you can calculate the resin quality that the injecting glue pipeline of unit length is absorbed, then according to formula (d) calculate in injected rubber hose
Remaining resin quality in road 7.Further, since be irrigated in vacuum systems, therefore resin residue is in injecting glue pipeline 7,
So as to also be sealed using resin formation.Correspondingly, the density of resin, the body being multiplied by injecting glue pipeline 7 can be also obtained by test
Product obtains remaining resin quality in injecting glue pipeline 7.
Since the resin quality adsorbed on vacuum bag 1, film structural component (such as VAP films) can be neglected, thus it was perfused
The required resin gross mass M of the journey gross masses that about above-mentioned four kinds of materials are absorbed in filling process, i.e. M=M1+MLoss。
Using the vacuum infusion method according to an embodiment of the invention for fibre, fibre can be realized
The controllable inhibition and generation of gel content can produce the fibre of a certain determining gel content according to the performance of specific material and the specific requirements of user
Fiber products.
Using the vacuum infusion method according to an embodiment of the invention for fibre, fibre service life increases
Add, the gel content of fibre is bordering on Theoretical Design value more partially, and performance is more excellent, and service life also greatly improves.
Using the vacuum infusion method according to an embodiment of the invention for fibre, pass through control valve (traffic flow
Fast control valve) control the amount of the speed of injection resin and injection resin, so as to fulfill the gel content of accurate control fiber product,
Exclusion bubble is also helped in the use of perfusion initial stage, increases the yield rate of fibre.
Using the vacuum infusion method according to an embodiment of the invention for fibre, resin usage amount significantly under
Drop, in large-scale fibre, the single savable amount of resin of fibre is more；Yield is bigger, and every year can be saved
The amount of resin of province is more, reduces the unnecessary waste of resource.
The above example of the present invention is only exemplary, and the present invention is not limited to this.Those skilled in the art
It should be appreciated that：Without departing from the principles and spirit of the present invention, it can change these embodiments, wherein, this hair
Bright range limits in claim and its equivalent.
Claims (8)
1. a kind of vacuum infusion method for fibre, the fibre is and shape by glass fibre and resin solidification
Into, which is characterized in that the vacuum infusion method for fibre includes：
It calculates and is lost in the resin quality and vacuum infusion process absorbed needed for glass fibre (4) described in the fibre
Resin quality；
The glass fibre (4) and perfusion auxiliary material are laid on substrate (5), the perfusion auxiliary material includes release cloth (3), flow-guiding screen
(2) and vacuum bag (1)；
It is laid with injecting glue pipeline (7) and exhaust pipe (8)；
The contact site of the vacuum bag (1) and the substrate (5) is sealed, between the vacuum bag (1) and the substrate (5)
Confined space is formed, the glass fibre (4), the flow-guiding screen (2) and the release cloth (3) are placed in confined space；
Control valve (11) is arranged in the injecting glue pipeline (7)；
The confined space is vacuumized using the exhaust pipe (8)；
The control valve (11) is opened to start to inject resin；
It is damaged when the quality of the resin of injection reaches in the resin quality and vacuum infusion process absorbed needed for the glass fibre (4)
During the sum of resin quality of consumption, the control valve (11) is closed.
2. the vacuum infusion method according to claim 1 for fibre, which is characterized in that counted according to formula (a)
The resin quality M1 absorbed needed for the glass fibre (4) is calculated, is calculated in vacuum infusion process according to formula (b), (c) and (d)
The resin quality M of lossLoss=M2+M3+M4,
Wherein, formula (a) is M1=m1/ (1- ψ)-m1, and wherein ψ is the gel content needed for glass fibre (4), and m1 is glass fibre
(4) quality；
Wherein, formula (b) is M2=β × m2, for calculating the resin quality of flow-guiding screen (2) loss, wherein, M2 is the water conservancy diversion
The resin quality of net (2) loss, the resin quality that β is lost by the flow-guiding screen (2) of unit quality, m2 are the flow-guiding screen
(2) quality；
Wherein, formula (c) is M3=α × m3, for calculating the resin quality of the release cloth (3) loss, wherein, M3 is described
The resin quality of release cloth (3) loss, the resin quality that α is lost by the release cloth (3) of unit quality, m3 are the release cloth
(3) quality；
Wherein, formula (d) is M4=θ × L, for calculating the remaining resin quality in the injecting glue pipeline (7), wherein, M4
For the remaining resin quality in the injecting glue pipeline (7), θ is remaining resin in the injecting glue pipeline (7) of unit length
Quality, L are the length of the injecting glue pipeline (7).
3. the vacuum infusion method according to claim 1 or 2 for fibre, which is characterized in that in the substrate
(5) when the glass fibre (4) and the perfusion auxiliary material are laid on, rigidity is set in at least both sides of the glass fibre (4)
Side plate (9) ensures the thickness of fibre.
4. according to the vacuum infusion method for fibre described in claim 3, which is characterized in that in the substrate
(5) when the glass fibre (4) and the perfusion auxiliary material are laid on, the release cloth is stacked gradually on the substrate (5)
(3), the glass fibre (4), the release cloth (3) and the flow-guiding screen (2) then overlay rigid panel (10) described
On rigid side walls (9).
5. according to the vacuum infusion method for fibre described in claim 4, which is characterized in that
Fiber system is surrounded by the substrate (5), the rigid side walls (9), the rigid panel (10) and the vacuum bag (1)
Product resin infusion space.
6. the vacuum infusion method according to claim 1 or 2 for fibre, which is characterized in that described in laying
When injecting glue pipeline (7) and the exhaust pipe (8), part of the exhaust pipe (8) in the confined space helically gas
Tube shape and coated by film structural component, the film structural component by only allow gas by without allow liquid by membrane material formed.
7. the vacuum infusion method according to claim 1 or 2 for fibre, which is characterized in that the control valve
(11) it is flow velocity control valve.
8. the vacuum infusion method according to claim 7 for fibre, which is characterized in that when the resin being perfused
During close to the sum of resin quality calculated, the flow velocity control valve is operated to reduce resin infusion speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217531.1A CN108237706A (en) | 2016-12-26 | 2016-12-26 | Vacuum infusion method for fiber products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217531.1A CN108237706A (en) | 2016-12-26 | 2016-12-26 | Vacuum infusion method for fiber products |
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| Publication Number | Publication Date |
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| CN108237706A true CN108237706A (en) | 2018-07-03 |
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ID=62705033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611217531.1A Pending CN108237706A (en) | 2016-12-26 | 2016-12-26 | Vacuum infusion method for fiber products |
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| CN (1) | CN108237706A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111186148A (en) * | 2020-01-13 | 2020-05-22 | 苏州瑞意达机械设备有限公司 | Full-automatic management and control filling system |
| CN113441344A (en) * | 2021-07-06 | 2021-09-28 | 上海航翼高新技术发展研究院有限公司 | Repair system and repair method for composite material resin injection |
| CN114311761A (en) * | 2022-01-05 | 2022-04-12 | 东北大学 | VARTM device and method integrating temperature, perfusion speed and pressure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946249A (en) * | 2016-06-15 | 2016-09-21 | 保定华翼风电叶片研究开发有限公司 | Preparation device for composite board sample used for tests and method |
-
2016
- 2016-12-26 CN CN201611217531.1A patent/CN108237706A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946249A (en) * | 2016-06-15 | 2016-09-21 | 保定华翼风电叶片研究开发有限公司 | Preparation device for composite board sample used for tests and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111186148A (en) * | 2020-01-13 | 2020-05-22 | 苏州瑞意达机械设备有限公司 | Full-automatic management and control filling system |
| CN113441344A (en) * | 2021-07-06 | 2021-09-28 | 上海航翼高新技术发展研究院有限公司 | Repair system and repair method for composite material resin injection |
| CN114311761A (en) * | 2022-01-05 | 2022-04-12 | 东北大学 | VARTM device and method integrating temperature, perfusion speed and pressure |
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