CN107089018A - The curing molding method of aeroscopic plate and preparation method and Material Stiffened Panel comprising it - Google Patents
The curing molding method of aeroscopic plate and preparation method and Material Stiffened Panel comprising it Download PDFInfo
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- CN107089018A CN107089018A CN201710385564.5A CN201710385564A CN107089018A CN 107089018 A CN107089018 A CN 107089018A CN 201710385564 A CN201710385564 A CN 201710385564A CN 107089018 A CN107089018 A CN 107089018A
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- aeroscopic plate
- preparation
- plate
- aeroscopic
- stiffened panel
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Classifications
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- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
A kind of curing molding method of Material Stiffened Panel the invention discloses aeroscopic plate and preparation method and comprising it, belongs to technical field of composite material molding.Wherein, the preparation method includes：Made using hard porous material and be provided with the hole matched with rib bottom shape on blank aeroscopic plate, blank aeroscopic plate；Blind hole is beaten on blank aeroscopic plate, aeroscopic plate is obtained.The present invention can deviate from hard porous material after Material Stiffened Panel global formation, and rib edge need not process trimming.
Description
Technical field
The present invention relates to technical field of composite material molding, more particularly to a kind of aeroscopic plate and preparation method and comprising it
The curing molding method of Material Stiffened Panel.
Background technology
Non-autoclave solidifies (Non-Autoclave or Vacuum-Bag-Only-Curable), also cries and solidifies outside autoclave
(Out-of-Autoclave), most proposed earlier than 1990s, hereafter Europe and the U.S. have put into great effort and has been used to grind
Study carefully non-autoclave solidification prepreg composite technology.
Relative to traditional solidification of hot-press tank technology, non-autoclave curing technology is in terms of cost and technique simplification is reduced
Have a clear superiority, non-autoclave solidification prepreg ties up to the interior i.e. heating curable of baking oven, greatlys save cost of equipment；And
And during using curing oven, curing process system is simple, it is only necessary to control temperature and vacuum levels (general non-autoclave solidification
All using full vacuum in prepreg solidification process)；The shape and size of baking oven are easier to customize by part dimension requirement, are adapted to big
The integration of type part is molded.Therefore, inexpensive non-autoclave solidification prepreg composite technology was obtained at nearest 10 years
It is fast-developing.Non-autoclave curing technology is one of current civil aircraft composite low-cost manufacturing technique most with prospects.
The particularity of technique determines the particularity of material, and non-autoclave prepreg material and traditional prepeg material are not
Together, typically belong to half impregnation state, i.e. resin portion dipping fiber, gradually thorough impregnation fiber and solidify after heating and softening.
The control of moulding process has very big shadow for the Forming Quality of composite in non-autoclave prepreg curing technology
Ring, it is necessary to realize under the operation pressure of an atmospheric pressure, reduce the voids content of composite, control empty before resin gel
The exclusion passage of gas or fugitive constituent.
In current non-autoclave prepreg curing process frequently with the methods of arrangement gas-permeable channels be in laminate surrounding
Place air guide silk or air guide glass fabric in edge so that the gas excluded between prepreg is arranged along air guide silk or air guide fiber
Go out, to obtain excellent Forming Quality.
During the present invention is realized, inventor has found that at least there are the following problems：
Logical design method of breathing freely employed in current non-autoclave prepreg forming technique includes two kinds, and one is in layer
Air guide silk (shown in such as Fig. 1 (a)) is placed at every layer of prepreg edge of plywood surrounding, and two be to place glass in the laminate surrounding being coated with
Glass fiber cloth (shown in such as Fig. 1 (b)).This method effect in forming composite laminate is also current non-autoclave significantly
The main method that prepreg supplier recommends.And this method is limited in that the non-hot pressing for being only applicable to composite laminated plate
Tank prepreg is molded, such as stressed-skin construction.For in the Material Stiffened Panel structure of global formation, such as T-shaped, shape for hat and I-shaped knot
Laying is complicated at structure, rib, easily occurs a large amount of holes at R angles, influences structural member mechanical property.Using non-autoclave prepreg skill
During art global formation Material Stiffened Panel structure, the passage design at rib is difficult to.Structure as shown in Fig. 2 (a) and Fig. 2 (b)
In, it is preforming after rib and covering integrally curing when, position a, b edge is difficult to design similar gas-permeable channels.Because layer
The air guide silk or air guide glass cloth placed around plywood all need demoulding post-processing trimming to remove, and due to complicated at rib,
Working depth is difficult to control to, and damage is easily caused to covering, therefore, it is difficult to process trimming.
The content of the invention
It is an object of the invention to provide a kind of aeroscopic plate and preparation method and bag being made of porous hard porous material
The curing molding method of Material Stiffened Panel containing it, can deviate from hard porous material after Material Stiffened Panel global formation, rib
Edge need not process trimming.
One side according to embodiments of the present invention there is provided a kind of preparation method of Material Stiffened Panel aeroscopic plate, including：Using
Hard porous material makes and is provided with the hole matched with rib bottom shape on blank aeroscopic plate, the blank aeroscopic plate；
Blind hole is beaten on the blank aeroscopic plate, aeroscopic plate is obtained.
Further, the step of beating blind hole on the blank aeroscopic plate includes：It is close according to default punching depth and punching
Degree, blind hole is beaten in the upper surface of the blank aeroscopic plate.
Further, default punching depth and default punch density set predetermined blind drilled parameter, with the predetermined blind hole
The longitudinal pressure that the aeroscopic plate of parameter is produced is not more than its longitudinal bearing capacity.
Further, many perforates that hard porous material is prepared using foam metal, hard open celled foam or using 3D printing
Material.
Further, the hole depth of the multiple blind holes set on aeroscopic plate is the 3/5-4/5 of air guide plate thickness.
Further, the hole density of the multiple blind holes set on aeroscopic plate is 25-64/m2。
There is provided a kind of system using any of the above-described kind of Material Stiffened Panel aeroscopic plate for other side according to embodiments of the present invention
Aeroscopic plate prepared by Preparation Method.
Further, the hole depth of the multiple blind holes set on aeroscopic plate is the 3/5-4/5 of air guide plate thickness.
Further, the hole density of the multiple blind holes set on aeroscopic plate is 25-64/m2.According to embodiments of the present invention
Another aspect, also provides a kind of curing molding method of Material Stiffened Panel, and curing molding method includes：Utilize any of the above-described kind of air guide
Plate preparation method prepares aeroscopic plate；To aeroscopic plate smearing release agent；The aeroscopic plate for having smeared releasing agent is positioned over Material Stiffened Panel
On, carry out Vacuum Package and the shaping that is heating and curing.
Another aspect according to embodiments of the present invention, also provides a kind of curing molding side of the Material Stiffened Panel with curvature
Method, the curing molding method includes：Aeroscopic plate is prepared using the preparation method of any of the above-described kind of aeroscopic plate；Aeroscopic plate is added
Heat, heating-up temperature is 50-60 DEG C；To aeroscopic plate smearing release agent；The aeroscopic plate for having smeared releasing agent is positioned over Material Stiffened Panel
On, carry out Vacuum Package and the shaping that is heating and curing.
Further, to aeroscopic plate smearing release agent the step of, includes：Contact on the upper and lower surface of aeroscopic plate and with rib
Part smearing release agent.
Further, before the aeroscopic plate for having smeared releasing agent is positioned on Material Stiffened Panel, in addition to：According to default
Resin thickness, one layer of resin is solidified in the lower surface of aeroscopic plate.
The embodiment of the present invention uses porous hard porous material as the gas-permeable channels of rib edge on Material Stiffened Panel,
The aeroscopic plate prepared using hard porous material is arranged between rib, it is auxiliary by connecting rib edge and extraneous airfelt
Help material to realize that gas-permeable channels are designed, hard porous material can be deviate from after Material Stiffened Panel global formation, rib edge need not add
Work trimming.
Brief description of the drawings
Fig. 1 (a) is the structural representation for the laminate for doing gas-permeable channels using air guide silk in the prior art；
Fig. 1 (b) is the structural representation for the laminate for doing gas-permeable channels using air guide glass cloth in the prior art；
Fig. 2 (a) is the structural representation of T-shaped rib in the prior art；
Fig. 2 (b) is the structural representation of shape for hat rib in the prior art；
Fig. 3 is a kind of flow chart of the preparation method of Material Stiffened Panel aeroscopic plate of the embodiment of the present invention；
Fig. 4 is the structural representation of the Material Stiffened Panel with aeroscopic plate in the embodiment of the present invention；
Fig. 5 is the side view of the Material Stiffened Panel with aeroscopic plate in the embodiment of the present invention；
Fig. 6 is a kind of flow chart of the curing molding method of Material Stiffened Panel of the embodiment of the present invention；
Fig. 7 is a kind of schematic flow sheet of the curing molding method of the Material Stiffened Panel with curvature of the embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to embodiment and join
According to accompanying drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright scope.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring this
The concept of invention.
Fig. 3 shows the flow chart of the preparation method of the Material Stiffened Panel aeroscopic plate of the embodiment of the present invention one.
As shown in figure 3, in embodiments of the present invention, the preparation method of Material Stiffened Panel aeroscopic plate comprise the following steps S10 and
S11：
S10, is made using hard porous material and is provided with and rib bottom shape phase on blank aeroscopic plate, blank aeroscopic plate
The hole of matching.
Wherein, hard porous material can use Commercial foam metal, hard open celled foam or using many of 3D printing preparation
Open-cell material etc., for example：Nickel foam, hard polyaminoester open celled foam etc..
Because rib is complex-shaped in itself, hard material is difficult into rib shape, and the last demoulding is also highly difficult, easily
Molded article is injured, therefore, the hole on blank aeroscopic plate is set to rib bottom shape to match, can realize that the demoulding is held
Easily, the technique effect of molded article will not be injured.
The hard porous material used in the present invention need to have certain rigidity, and certain positioning work is played to be laid to rib
With, meanwhile, at one atm, hard porous material will not be collapsed.
In a specific embodiment, as shown in Figure 4, Figure 5, multiple ribs 2 are equipped with laminate 1, due to rib 2
The passage design at place is difficult to, if placement air guide silk or air guide glass cloth are breathed freely around laminate, and in solidification
After shaping and demoulding, these air guides silk or the trimming of air guide glass cloth need to be removed, but if having rib on laminate, then due to rib
Place is complicated, it is impossible to realize processing trimming.Inventor has found hard porous material inherently during the present invention is realized
With many tiny micropores, can as gas-permeable channels designing material, therefore, hard porous material is processed into Fig. 4
Blank aeroscopic plate 3 shape, i.e., blank aeroscopic plate 3 be shaped as the part outside multiple ribs 2 is removed on laminate 1.
S11, beats blind hole on blank aeroscopic plate, obtains aeroscopic plate.
It is made by step S10 method after blank aeroscopic plate, in addition it is also necessary to multiple blind holes are beaten on blank aeroscopic plate,
The gas that the setting of these blind holes enables to the prepreg on rib to discharge is extracted out from the blind hole of aeroscopic plate upper surface, preferably
Ground, the blind hole passage of these upper surfaces is The more the better.
Alternatively, the shape of blind hole can be that circular, triangle or polygon are variously-shaped, the present invention not as
Limit.
Specifically, in step S11 when beating blind hole, it need to be punched according to default punching depth and punch density, in advance
If punching depth and default punch density predetermined blind drilled parameter is set, what the aeroscopic plate with the predetermined blind drilled parameter was produced
Longitudinal pressure is not more than its longitudinal bearing capacity.To ensure that the longitudinal pressure of whole aeroscopic plate, which ensure that, not to be surpassed after drilling
Its longitudinal bearing capacity is crossed, aeroscopic plate will not cave in.
Longitudinal pressure-bearing of aeroscopic plate and punching depth, the relation of punch density are as follows：
Wherein, PmaxFor air guide plate material maximum pressure allowed to bear.T is punching depth.D is air guide plate thickness.ρ is
Punch density, is the hole number on unit area.S is hole area, and under technique enabled condition, hole area is the smaller the better.
Preferably, it can also be and uniformly punched in hard porous material upper surface, hole depth need to ensure blank aeroscopic plate
Lower surface is intact, and hole density is smaller, to ensure longitudinal pressure-bearing of the aeroscopic plate during curing molding.
The present invention, as the gas-permeable channels of rib edge on Material Stiffened Panel, will be used using porous hard porous material
The aeroscopic plate that hard porous material is prepared is arranged between rib, by connecting rib edge and extraneous airfelt auxiliary material
Realize that gas-permeable channels are designed, hard porous material can be deviate from after Material Stiffened Panel global formation, rib edge is without processing
Trimming.
The embodiment of the present invention also provides a kind of hole depth of blind hole on aeroscopic plate prepared according to above-mentioned preparation method, aeroscopic plate
Spend for the 3/5-4/5 of air guide plate thickness.Hole density is 25-64/m2, such hole depth and hole density can just ensure
After punching, the longitudinal pressure of whole aeroscopic plate ensure that, no more than its longitudinal bearing capacity, aeroscopic plate will not cave in.Hole density can
Adjusted according to the strength of materials and technological requirement, in the case where meeting the relation of pressure, hole density and depth, increase hole density and hole depth
All be conducive to the discharge of gas between prepreg, and air guide plate material compressive strength is bigger, the edge strip thickness of rib is also bigger.
As shown in fig. 6, a kind of curing molding method of Material Stiffened Panel, including：
S20, aeroscopic plate is prepared using a kind of preparation method of Material Stiffened Panel aeroscopic plate.
S21, to aeroscopic plate smearing release agent.
S22, the aeroscopic plate for having smeared releasing agent is positioned on Material Stiffened Panel, is carried out Vacuum Package and is heated and cured into
Type.
Specifically installing it after the aeroscopic plate prepared is placed on into light gray areas, then by bulk testing part
The rear carry out Vacuum Package such as his positioner, reheats curing molding.
Preferably, to aeroscopic plate smearing release agent the step of, includes：Contact on the upper and lower surface of aeroscopic plate and with rib
Part smearing release agent, is easy to be stripped after shaping.
Preferably, such as need lower surface bright and clean, before the aeroscopic plate for having smeared releasing agent is positioned on Material Stiffened Panel, also
Including：According to default resin thickness, solidify one layer of resin in the lower surface of aeroscopic plate, it is further preferred that need to be only one layer
Thin resin, will not increase air guide plate thickness, and influence technique.
Further, because aeroscopic plate has certain flexibility, in forming curvature wallboard, leading after punching will can be processed
Gas plate heat distortion is into product curvature, then completes prepreg paving curing molding.This aeroscopic plate can be used for deep camber reinforcement wall
In the curing molding of plate.
The embodiment of the present invention also provides a kind of curing molding method of the Material Stiffened Panel with curvature, as shown in fig. 7, this is solid
Changing forming method includes：
S30, aeroscopic plate is prepared using a kind of preparation method of aeroscopic plate.
S31, is heated to aeroscopic plate, and heating-up temperature is 50-60 DEG C.
S32, to aeroscopic plate smearing release agent.
S33, the aeroscopic plate for having smeared releasing agent is positioned on Material Stiffened Panel, is carried out Vacuum Package and is heated and cured into
Type.
Wherein, the step of being heated to aeroscopic plate includes：
Aeroscopic plate is fixed on the die hard consistent with rib wallboard product radius of curvature, aeroscopic plate upper surface applies
Vacuum pressure is shaped, and preheating can carry out pre-add thermal finalization in curing oven.
The embodiment of the present invention is to be directed to situation about solidifying together suitable for the aeroscopic plate of deep camber Material Stiffened Panel, is passed through
Heating in advance is carried out to aeroscopic plate makes it shape, so as to make aeroscopic plate have certain curvature in advance, be conducive to deep camber covering with
The co-curing shaping of rib.
The aeroscopic plate being described in detail in the above embodiment of the present invention can be used in non-autoclave prepreg forming technique, can also
For air guide the need for other, but because the likes such as rib are complicated so that air guide silk and air guide glass cloth can not be used
Technical field, air guide channel arrangement of such as autoclave technique when rib and covering co-curing are molded, autoclave technique is " dry
Location-plate and air guide channel when covering+wet stringer " or " wet covering+dry stringer " shaping.
It should be appreciated that the above-mentioned embodiment of the present invention is used only for exemplary illustration or explains the present invention's
Principle, without being construed as limiting the invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.In addition, appended claims purport of the present invention
Covering the whole changes fallen into scope and border or this scope and the equivalents on border and repairing
Change example.
Claims (10)
1. a kind of preparation method of Material Stiffened Panel aeroscopic plate, it is characterised in that including：
Make to be provided with blank aeroscopic plate, the blank aeroscopic plate using hard porous material and match with rib bottom shape
Hole；
Blind hole is beaten on the blank aeroscopic plate, aeroscopic plate is obtained.
2. preparation method according to claim 1, it is characterised in that the step of beating blind hole on the blank aeroscopic plate is wrapped
Include：
According to default punching depth and punch density, blind hole is beaten in the upper surface of the blank aeroscopic plate.
3. preparation method according to claim 2, it is characterised in that the default punching depth and default punching are close
Degree sets predetermined blind drilled parameter, and the longitudinal pressure that the aeroscopic plate with the predetermined blind drilled parameter is produced is not more than its longitudinal pressure-bearing
Power.
4. the preparation method according to any one of claim 1-3, it is characterised in that the hard porous material is using bubble
Foam metal, hard open celled foam or many open-cell materials prepared using 3D printing.
5. preparation method according to claim 1, it is characterised in that the hole depth of the multiple blind holes set on the aeroscopic plate
Spend for the 3/5-4/5 of air guide plate thickness.
6. preparation method according to claim 1, it is characterised in that the Kong Mi of the multiple blind holes set on the aeroscopic plate
Spend for 25-64/m2。
7. air guide prepared by a kind of a kind of preparation method of Material Stiffened Panel aeroscopic plate any one of utilization claim 1-6
Plate.
8. preparation method according to claim 7, it is characterised in that the hole depth of the multiple blind holes set on the aeroscopic plate
Spend for the 3/5-4/5 of air guide plate thickness.
9. preparation method according to claim 7, it is characterised in that the Kong Mi of the multiple blind holes set on the aeroscopic plate
Spend for 25-64/m2。
10. a kind of curing molding method of Material Stiffened Panel, it is characterised in that the curing molding method includes：
Aeroscopic plate is prepared using the preparation method as any one of claim 1-6；
To the aeroscopic plate smearing release agent；
The aeroscopic plate for having smeared releasing agent is positioned on Material Stiffened Panel, Vacuum Package and the shaping that is heating and curing is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385564.5A CN107089018B (en) | 2017-05-26 | 2017-05-26 | Air guide plate, preparation method thereof and curing and forming method of reinforced wall plate comprising air guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385564.5A CN107089018B (en) | 2017-05-26 | 2017-05-26 | Air guide plate, preparation method thereof and curing and forming method of reinforced wall plate comprising air guide plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107089018A true CN107089018A (en) | 2017-08-25 |
| CN107089018B CN107089018B (en) | 2020-05-15 |
Family
ID=59639807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710385564.5A Active CN107089018B (en) | 2017-05-26 | 2017-05-26 | Air guide plate, preparation method thereof and curing and forming method of reinforced wall plate comprising air guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107089018B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682551A (en) * | 2018-11-22 | 2019-04-26 | 成都飞机工业（集团）有限责任公司 | A kind of multiple airtight detection new system of material mold |
| CN114938637A (en) * | 2019-08-20 | 2022-08-23 | Bkrz有限公司 | Method for recycling insulation wool, apparatus for processing insulation wool, fiber-reinforced foam, fire-resistant wood material and method for producing fire-resistant wood material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146177A (en) * | 1994-04-29 | 1997-03-26 | 波音公司 | Prescored foam for panel fabrication |
-
2017
- 2017-05-26 CN CN201710385564.5A patent/CN107089018B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146177A (en) * | 1994-04-29 | 1997-03-26 | 波音公司 | Prescored foam for panel fabrication |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682551A (en) * | 2018-11-22 | 2019-04-26 | 成都飞机工业（集团）有限责任公司 | A kind of multiple airtight detection new system of material mold |
| CN114938637A (en) * | 2019-08-20 | 2022-08-23 | Bkrz有限公司 | Method for recycling insulation wool, apparatus for processing insulation wool, fiber-reinforced foam, fire-resistant wood material and method for producing fire-resistant wood material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107089018B (en) | 2020-05-15 |
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