CN106891546A - A kind of forming method for becoming wall thickness composite skirt - Google Patents
A kind of forming method for becoming wall thickness composite skirt Download PDFInfo
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- CN106891546A CN106891546A CN201710206107.5A CN201710206107A CN106891546A CN 106891546 A CN106891546 A CN 106891546A CN 201710206107 A CN201710206107 A CN 201710206107A CN 106891546 A CN106891546 A CN 106891546A
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- Prior art keywords
- component
- wall thickness
- forming method
- section
- thickness composite
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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
- B29C70/30—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
- B29C70/34—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 shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—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 shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- 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
-
- 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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
-
- 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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a kind of forming method for becoming wall thickness composite skirt, the method is comprised the following steps：In the outside of component one laminating component to be formed, the head and the tail connection of component two is circlewise fitted in the outside of the component to be formed, vacuum bag is arranged on the outside of the entirety that component to be formed and component two are formed and carry out application of vacuum, being put into autoclave carries out curing molding, after the shaping of the component to be formed is finished, the component two is opened along junction, the component to be formed is separated with the component one again, complete the processes such as the demoulding, wherein, the component one is the hardened member of ring-type, and the component two is the soft component of strip.Compared to prior art, combined with die using soft mode, be conducive to improving surface forming quality, realized fast demoulding by taking soft mode apart, it is not necessary to destroy mould, mould can repetitive cycling use, effectively save die cost, reduce manufacturing cost.
Description
Technical field
The present invention relates to technical field of composite material molding, more particularly to a kind of shaping side for becoming wall thickness composite skirt
Method.
Background technology
Solid propellant rocket joint skirt is the important component of motor body, for realizing that housing interstage section is connected
Or the connection of engine, guided missile main structure etc., because composite has the excellent properties such as specific strength higher, specific modulus, because
This composite joint skirt is widely used in the connection of rocket or guided missile main structure.
Composite skirt is commonly present the situation for becoming wall thickness, and such as forming part bottom is flanged, or there is the oblique angle etc. that sink, multiple
The molding mode of condensation material integrated connection skirt has RTM moulding process and winding laying moulding process.RTM moulding process is will be compound
After the structures such as flange, the shell portion of material joint skirt use continuous fiber or fabric preforming, it is laid in die cavity, matched moulds
After sealing, then injected by resin, Integratively formed full composite material joint skirt, this process need to control Resin Flow, and
The composite joint skirt interior porosity of preparation is larger, and Making mold relative difficulty, manufacturing cost is larger；And Wrapping formed work
Skill is under conditions of control fiber tension and predetermined line style, continuous fiber roving impregnating resin glue continuously to wind
In the composite joint skirt on the core of chamber size, composite end frame is then solidify to form under room temperature or heating condition
Integrated connection skirt, but core need to be destroyed during the demoulding, core cannot be reused, is more expensive to manufacture.
The content of the invention
It is an object of the invention to overcome, the preparation technology Forming Quality of existing composite skirt is not good, easily cause table
A kind of above-mentioned deficiency such as planar defect, demoulding high cost, manufacturing cost be big, there is provided forming method of change wall thickness composite skirt, just
In fast demoulding, Forming Quality is improved, save production cost.
To achieve these goals, the invention provides following technical scheme：
A kind of forming method for becoming wall thickness composite skirt, comprises the following steps：
A, the outer surface laminating component to be formed in component one；
B, the outside that the head and the tail connection of component two is circlewise fitted in the component to be formed；
C, on the outside of the entirety that the component to be formed and component two are formed it is arranged vacuum bag and carries out application of vacuum；
D, it is put into autoclave and carries out curing molding；
E, after the shaping of the component to be formed is finished, the component two is opened along junction, then by the structure to be formed
Part is separated with the component one, completes the demoulding；
Wherein, the component one is the hardened member of ring-type, and the component two is the soft component of strip.
Using a kind of forming method for becoming wall thickness composite skirt of the present invention, the component one is the hard of ring-type
Component, such as steel annular component, in the outside of the component one laminating component to be formed, if the component to be formed is dried layer
Prepreg tablet is formed, from level to level fit in the outer surface of the component one, the component two is the soft component of strip, will
The head and the tail connection of the component two is circlewise fitted in the outside of the component to be formed, then in component to be formed and component dimorphism
Into entirety outside be arranged vacuum bag and carry out application of vacuum, placing into autoclave carries out curing molding, treats the structure to be formed
After the shaping of part is finished, because the component two is the soft component of strip, the component two is opened along junction, then by institute
State component to be formed to be separated with the component one, complete the demoulding, you can complete the preparation of composite skirt.First pasted using this method
Close and fit again after component to be formed soft mode, fitted between soft mode and component to be formed closely knit, advantageously reduce porosity, improve multiple
The surface forming quality of condensation material skirt, because soft mode has otch, can take apart and realize fast demoulding, when composite skirt into
When type shape has the resemblance for becoming wall thickness, such as there is flange arrangement or close angle, in the situation for keeping mould complete after shaping
Lower composite skirt cannot be taken out, or disfigurement is easily caused during the demoulding, and soft mode can open disengaging, therefore, it is possible to suitable
The sharp demoulding avoids the destruction to mould simultaneously, mould can repetitive cycling use, effectively save die cost, shorten production week
Phase, reduce manufacturing cost.
Preferably, the preparation method of the component two is comprised the following steps：
A, fitted for the blank for preparing the component two in the outer surface of component three；
B, it is arranged on the outside of the blank of the component two vacuum bag and carries out application of vacuum；
C, it is put into autoclave and carries out curing molding；
D, it is to be formed finish after, the component two is opened along junction, complete the preparation of the component two；
Wherein described component three is the hardened member of ring-type.
Because the component two is strip soft mode, to ensure that it can be brought into close contact the component to be formed, using adaptation
The component three of ring-type hard prepare the component two, it is possible to increase the Forming Quality of the component two, improve with it is described
The fit of component one, and then improve the Forming Quality of the component to be formed.
It is further preferred that the step a is comprised the following steps：
A1, prepare the component two respectively Duan Yiyu sections two of blank, are two sections by described section one point；
A2, the outer surface for fitting in described section a component three, release cloth is set between two sections of described section one；
A3, the remaining position of the outer surface of the component three is fitted described section two, described section two of two ends and the two of described section
End overlaps respectively.
Because the component two is strip, crosses solidification of hot-press tank with section two-way using described section one and be connected, by described section one
It is divided into two sections, the outer surface for fitting in the component three by described section sets release cloth between two sections of described section one, keeps away
Exempt to be linked to be entirety in forming process, the remaining position of the outer surface of the component three is fitted described section two, described section two of two ends
Two ends with described section one overlap respectively, it is ensured that the Duan Yiyu described in forming process sections two can be linked to be entirety, ultimately form
Strip.
It is further preferred that in step a2, in described section one or two section of junction, the side contacted with the component three
Laying carbon fibre fabric prepreg.
Using above-mentioned set-up mode, be conducive to improving shaping strength of the component two in junction.
It is further preferred that the otch between two sections of described section is oblique angle.
Using oblique angle otch, increase the connection area of overlap joint, connect more stable.
It is further preferred that before step a2, first in the surface laminating non-porous release film of the component three.
It is further preferred that the blank of the component two is by carbon fibre fabric prepreg shape of being fitted between two-layer rubber
Into.
The component two is soft mode, is compounded to form with carbon fibre fabric using rubber matrix, and wherein carbon fibre fabric can
Strengthen the intensity of the component two, to ensure the appearance and size of composite skirt and the surface quality of lateral wall, and rubber makes
Obtaining the component two has a certain degree of suppleness, can effectively be homogenized and transmit outside pressure, further improves and is combined
The Forming Quality of material skirt.
Preferably, it is provided with non-porous release film between the component one, component two and the component to be formed.
Non-porous release film between the component one and component to be formed can also replace with releasing agent.
Preferably, it is characterised in that in step, when the component to be formed is fitted, pre-compacted is carried out.
Closely knit to ensure laminating because if the component to be formed is formed by dried layer prepreg tablet manual assembly, reduce
Hole, often fit it is several layers of vacuumize pre-compacted once, until laminating complete.
Preferably, before step C, it is arranged successively on the outside of the entirety that the component to be formed is formed with component two non-porous
Barrier film and airfelt.
Non-porous release film and airfelt, institute are set gradually outside the entirety that the component two and Component composition to be formed are formed
Non-porous release film is stated for completely cutting off the airfelt, it is to avoid component two in forming process with the airfelt adhesion, it is difficult to tear open
Unload, the non-porous release film also can be replaced hole barrier film, the airfelt can be easy to air guide, while avoiding the component
Scratch the vacuum bag and cause gas leakage in one corner.
In sum, compared with prior art, the beneficial effects of the invention are as follows：
1st, using a kind of forming method for becoming wall thickness composite skirt of the present invention, it is coated with again after first paving component to be formed
Soft mode, paving is closely knit between soft mode and component to be formed, advantageously reduces porosity, improves the surface forming matter of composite skirt
Amount, because soft mode has otch, can be taken apart and realize fast demoulding, and the outer of wall thickness is become when the forming shape of composite skirt is present
During shape feature, such as there is flange arrangement or close angle, composite skirt cannot take out in the case where keeping mould complete after shaping,
Or disfigurement is easily caused during the demoulding, and soft mode can open disengaging, be avoided to mould simultaneously therefore, it is possible to the smooth demoulding
Destruction, mould can repetitive cycling use, effectively save die cost, shorten the production cycle, reduce manufacturing cost.
2nd, using a kind of forming method for becoming wall thickness composite skirt of the present invention, because the component two is strip
Soft mode, to ensure that it can be brought into close contact the component to be formed, institute is prepared using the component three of the ring-type hard of adaptation
State component two, it is possible to increase the Forming Quality of the component two, improve the fit with the component one, and then treated described in raising
The Forming Quality of shaped component.
3rd, using a kind of forming method for becoming wall thickness composite skirt of the present invention, because the component two is bar
Shape, crosses solidification of hot-press tank and is connected using described section one with section two-way, is two sections by described section one point, by a described section of paving in institute
The outer surface of component three is stated, release cloth is set between two sections of described section one, it is to avoid be linked to be entirety in forming process, it is described
Section two described in the remaining position paving of the outer surface of component three, two ends of described section two of the two ends with described section one overlap respectively, protect
The Duan Yiyu described in forming process sections two of card can be linked to be entirety, ultimately form strip.
4th, using a kind of forming method for becoming wall thickness composite skirt of the present invention, be conducive to improving the component two
In the shaping strength of junction.
5th, using a kind of forming method for becoming wall thickness composite skirt of the present invention, using oblique angle otch, increase is taken
The connection area for connecing, connects more stable.
6th, using a kind of forming method for becoming wall thickness composite skirt of the present invention, the component two is soft mode, is adopted
It is compounded to form with carbon fibre fabric with rubber matrix, wherein carbon fibre fabric can strengthen the intensity of the component two, to protect
The appearance and size of composite skirt and the surface quality of lateral wall are demonstrate,proved, and rubber causes the component two with a certain degree of soft
Toughness, can effectively be homogenized and transmit outside pressure, further improve the Forming Quality of composite skirt.
7th, using it is of the present invention it is a kind of become wall thickness composite skirt forming method, due to the component to be formed by
It is closely knit to ensure paving if dried layer prepreg tablet lays by hand being formed, hole is reduced, often lay and several layers of vacuumize pre-compacted one
It is secondary, until lay completing.
Brief description of the drawings
Fig. 1 is the structural representation of the section one of the blank of component of the present invention two.
Fig. 2 is the section of structure of the section two of the blank of component of the present invention two.
Fig. 3 is the structural representation of component of the present invention three.
Fig. 4 is the sectional view of the shaping of component of the present invention two.
Fig. 5 is the structural representation of component of the present invention two.
Fig. 6 is the structural representation of component of the present invention.
Fig. 7 is the sectional view of step 8 in the present invention.
Fig. 8 is the structure top view of step 9 in the present invention.
Fig. 9 is the partial enlarged drawing of Fig. 8.
Marked in figure：1- components one, 2- components two, 21- sections of one, 22- sections of two, 3- component to be formed, 4- vacuum bags, 5- branch
Support part part, 6- non-porous release films, 7- airfelts, 8- components three, 9- release cloths, 10- rubber, 11- carbon fibre fabric prepregs.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.But this should not be interpreted as this
The scope for inventing above-mentioned theme is only limitted to following embodiment, and all technologies realized based on present invention belong to the present invention
Scope.
Embodiment 1
A kind of forming method for becoming wall thickness composite skirt, comprises the following steps：
Step one, prepare respectively the component 22 blank section 1 and section 2 22, be two sections by described section one 21 points；
Step 2, the first surface laminating non-porous release film 6 in the component 38, the component 38 is fitted in by described section 1
Outer surface, described section one 21 two sections of junction, the side laying carbon fibre fabric prepreg contacted with the component 38
11, release cloth 9 is set between two sections of described section 1；
Step 3, the remaining position of the outer surface of the component 38 is fitted described section 2 22, described section 2 22 of two ends with it is described
The two ends of section 1 overlap respectively；
Step 4, non-porous release film 6, airfelt 7 and vacuum bag 4 are arranged on the outside of the blank of the component 22 successively and are carried out
Application of vacuum；
Step 5, it is put into autoclave and carries out curing molding；
Step 6, it is to be formed finish after, the component 22 is opened along junction, complete the preparation of the component 22；
Step 7, the first paving non-porous release film 6 in outer surface in component 1, component to be formed 3 of then fitting；
Step 8, non-porous release film 6 is fitted in the outside of the component to be formed 3, then connects into the head and the tail of the component 22
Ring-type is fitted in the outside of the non-porous release film 6；
Step 9, on the outside of the entirety that the component to be formed 3 and component 22 are formed non-porous release film 6, airfelt is arranged successively
7 and vacuum bag 4 and carry out application of vacuum；
Step 10, it is put into autoclave and carries out curing molding；
Step 11, after the shaping of the component to be formed 3 is finished, the component 22 is opened along junction, then will be described
Component to be formed 3 is separated with the component 1, completes the demoulding.
Wherein, the component 1 is the steel components of ring-type, and the component 22 is knitted for the rubber 10 of strip with carbon fiber
The compound component of thing prepreg, the component 38 is the steel components of ring-type, and the otch between two sections of described section 1 is oblique
Angle.
If the component to be formed 3 is dried layer prepreg tablet being formed, its molding structure is that bottom carries flange arrangement, side
There is the variable cross-section at the oblique angle that sink in face, as described in Figure 1, the section 1 of the blank of the component 22 is prepared first, cut corresponding big
Small two panels rubber 10, lays wherein one on flat board, and three layers of carbon fibre fabric prepreg 11, the carbon are laid on its surface
Volume again at the size for being sized to be slightly smaller than the rubber 10 of fabric prepreg 11, then corresponding flange end and sagging oblique angle
Outer lay two-layer fabrics prepreg, is finally laying last layer of rubber 10, then from described section 1 of the oblique incision in centre
Two sections are formed, wherein one section is wrapped up with the release cloth 9, incision lower section lays two-layer carbon fibre fabric prepreg 11, such as schemes
2, described section 2 22 is also adopted by identical paving material and order, such as Fig. 3-4, by described section 1 with the paving of section 2 22 in described
It is provided with support member 5 on component 38, in the component 38, the two ends phase of described section 2 22 of two ends respectively at described section 1
Overlap joint, described section one 21 two sections of junction, the two-layer carbon fibre fabric prepreg 11 of incision is located at and the component 38
The side of contact, then lays non-porous release film 6, airfelt 7 and vacuum bag 4 and carries out successively in the outside of the component 22
Application of vacuum, is then placed in solidification of hot-press tank shaping, and the component 22 is formed after the demoulding as shown in figure 5, such as Fig. 6-9, the structure
Support member 5 is provided with part 1, in the outside paving non-porous release film 6 of the component 1, is then laid successively and treated described in being formed
The prepreg tablet of shaped component 3, often lays four layers and is once vacuumized pre-compacted, until lay complete, then described
The entirety outside that component to be formed 3 and the component 22 are formed lay successively non-porous release film 6, the component 22, it is non-porous every
From film 6, airfelt 7 and vacuum bag 4, and application of vacuum is carried out, be then placed in solidification of hot-press tank shaping, it is to be solidified to finish, by institute
State component 22 to be opened along incision, then the component to be formed 3 is separated with the component 1, make the component to be formed 3
Complete the demoulding.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. it is a kind of become wall thickness composite skirt forming method, it is characterised in that comprise the following steps：
A, the outer surface laminating component (3) to be formed in component one (1)；
B, the outside that the head and the tail connection of component two (2) is circlewise fitted in the component to be formed (3)；
C, the entirety outside formed in the component (3) to be formed and component two (2) are arranged vacuum bag (4) and carry out at vacuum
Reason；
D, it is put into autoclave and carries out curing molding；
E, after the shaping of the component (3) to be formed is finished, the component two (2) is opened along junction, then treated described
Shaped component (3) is separated with the component one (1), completes the demoulding；
Wherein, the component one (1) is the hardened member of ring-type, and the component two (2) is the soft component of strip.
2. it is according to claim 1 it is a kind of become wall thickness composite skirt forming method, it is characterised in that the component two
(2) preparation method is comprised the following steps：
A, fitted for the blank for preparing the component two (2) in the outer surface of component three (8)；
B, the component two (2) blank outside be arranged vacuum bag (4) and carry out application of vacuum；
C, it is put into autoclave and carries out curing molding；
D, it is to be formed finish after, the component two (2) is opened along junction, complete the preparation of the component two (2)；
Wherein described component three (8) is the hardened member of ring-type.
3. it is according to claim 2 it is a kind of become wall thickness composite skirt forming method, it is characterised in that the step a
Comprise the following steps：
A1, prepare respectively the component two (2) blank section one (21) and section two (22), be divided into two by described section one (21)
Section；
A2, the outer surface for fitting in described section (21) component three (8), are set between two sections of described section one (21)
Release cloth (9)；
A3, the remaining position of the outer surface of the component three (8) is fitted described section two (22), described section two (22) of two ends and institute
The two ends for stating section one (21) overlap respectively.
4. it is according to claim 3 it is a kind of become wall thickness composite skirt forming method, it is characterised in that in step a2
In, in described section one (21) two section of junction, the side laying carbon fibre fabric prepreg contacted with the component three (8)
(11)。
5. it is according to claim 3 it is a kind of become wall thickness composite skirt forming method, it is characterised in that described section one
(21) the otch between two sections is oblique angle.
6. it is according to claim 3 it is a kind of become wall thickness composite skirt forming method, it is characterised in that step a2 it
Before, first on surface laminating non-porous release film (6) of the component three (8).
7. it is according to claim 2 it is a kind of become wall thickness composite skirt forming method, it is characterised in that the component two
(2) blank is formed by being coated with carbon fibre fabric prepreg (11) between two-layer rubber (10).
8. according to a kind of forming method of any described change wall thickness composite skirts of claim 1-7, it is characterised in that described
Non-porous release film (6) is provided between component one (1), component two (2) and the component (3) to be formed.
9. the construction method of the forming method according to a kind of any described change wall thickness composite skirts of claim 1-7, it is special
Levy and be, in step, at component to be formed (3) described in paving, carry out pre-compacted.
10. the construction method of the forming method according to a kind of any described change wall thickness composite skirts of claim 1-7, it is special
Levy and be, before step C, be arranged successively on the outside of entirety that the component (3) to be formed and component two (2) are formed it is non-porous every
From film (6) and airfelt (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710206107.5A CN106891546A (en) | 2017-03-31 | 2017-03-31 | A kind of forming method for becoming wall thickness composite skirt |
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Cited By (5)
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| CN107856330A (en) * | 2017-12-06 | 2018-03-30 | 江苏金风科技有限公司 | Blade root prefabricated mould, blade root method for prefabricating, blade manufacture method and blade |
| CN107901448A (en) * | 2017-11-09 | 2018-04-13 | 湖北三江航天江北机械工程有限公司 | The compound skirt cure under pressure method of major diameter |
| CN109849367A (en) * | 2019-03-20 | 2019-06-07 | 成都联科航空技术有限公司 | A kind of processing method of big thickness composite skirt |
| CN109849368A (en) * | 2019-03-20 | 2019-06-07 | 成都联科航空技术有限公司 | A kind of composite material tape cone section Varying-thickness revolution attachment structure processing method |
| CN110641041A (en) * | 2018-06-26 | 2020-01-03 | 深圳光启尖端技术有限责任公司 | One-step forming process of ankle-foot orthosis and ankle-foot orthosis |
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| CN107901448A (en) * | 2017-11-09 | 2018-04-13 | 湖北三江航天江北机械工程有限公司 | The compound skirt cure under pressure method of major diameter |
| CN107901448B (en) * | 2017-11-09 | 2020-05-22 | 湖北三江航天江北机械工程有限公司 | Large-diameter composite skirt compression curing method |
| CN107856330A (en) * | 2017-12-06 | 2018-03-30 | 江苏金风科技有限公司 | Blade root prefabricated mould, blade root method for prefabricating, blade manufacture method and blade |
| CN110641041A (en) * | 2018-06-26 | 2020-01-03 | 深圳光启尖端技术有限责任公司 | One-step forming process of ankle-foot orthosis and ankle-foot orthosis |
| CN109849367A (en) * | 2019-03-20 | 2019-06-07 | 成都联科航空技术有限公司 | A kind of processing method of big thickness composite skirt |
| CN109849368A (en) * | 2019-03-20 | 2019-06-07 | 成都联科航空技术有限公司 | A kind of composite material tape cone section Varying-thickness revolution attachment structure processing method |
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