CN108943764A - Shear web manufacturing method - Google Patents
Shear web manufacturing method Download PDFInfo
- Publication number
- CN108943764A CN108943764A CN201810712205.0A CN201810712205A CN108943764A CN 108943764 A CN108943764 A CN 108943764A CN 201810712205 A CN201810712205 A CN 201810712205A CN 108943764 A CN108943764 A CN 108943764A
- Authority
- CN
- China
- Prior art keywords
- shallow slot
- vacuum bag
- shear web
- core material
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
- B29L2031/085—Wind turbine blades
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)
Abstract
The invention discloses a kind of shear web manufacturing methods comprising following steps: S1, opening shallow slot in a side surface of core material；S2, be laid in vacuum bag according to sequence from bottom to up: glass-fiber-fabric and core material, core material open the side of shallow slot away from glass-fiber-fabric；S3, the air in vacuum bag is extracted out, is made in vacuum bag for vacuum state；S4, resin is poured into vacuum bag；S5, manufactured shear web taken out out of vacuum bag after resin solidifies completely.The shear web manufacturing method on the surface of core material by opening shallow slot, with for flowing freely in the space that resin can be constituted between vacuum bag and shallow slot when core material is in the vacuum bag in vacuum state, to realize water conservancy diversion transmitting in vacuum bag.Therefore, which can be good at transmitting in resin infusion instead of the water conservancy diversion that flow-guiding screen carries out resin, to can cancel the laying of flow-guiding screen when manufacturing shear web, reduce the manufacturing cost of the shear web.
Description
Technical field
The present invention relates to wind electricity blade field, in particular to a kind of shear web manufacturing method.
Background technique
In megawatt production process of grade blade industrialization, blade material accounts for 70% or more of blade overall cost.Blade
During priming by vacuum, need using flow-guiding screen and place it in the surface of core material, in vacuum bag be vacuum shape
Guarantee that resin realizes that water conservancy diversion is transmitted along the gap of flow-guiding screen in vacuum bag when state.With the solidification of resin, flow-guiding screen is simultaneously set
Rouge is fixed on core surfaces, becomes a part of shear web, and therefore, flow-guiding screen is used as disposable material in this manufacturing process
Material is carried out using improving the manufacturing cost of shear web.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome in the prior art manufacture shear web technique in, water conservancy diversion
Net is carried out as disposable material using improving the defect of the manufacturing cost of shear web, provide a kind of manufacture of shear web
Method.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of shear web manufacturing method comprising following steps:
S1, shallow slot is opened in a side surface of core material；
S2, be laid in vacuum bag according to sequence from bottom to up: glass-fiber-fabric and the core material, the core material open shallow slot
Side deviates from the glass-fiber-fabric；
S3, the air in the vacuum bag is extracted out, is made in the vacuum bag for vacuum state；
S4, resin is poured into the vacuum bag；
S5, manufactured shear web taken out out of described vacuum bag after resin solidifies completely.
The shear web manufacturing method on the surface of core material by opening shallow slot, for being in vacuum state in core material
Vacuum bag in when, flow freely in the space that resin can be constituted between vacuum bag and shallow slot, thus real in vacuum bag
Existing water conservancy diversion transmitting.Therefore, which can be good at transmitting in resin infusion instead of the water conservancy diversion that flow-guiding screen carries out resin, thus
The laying that flow-guiding screen can be cancelled when manufacturing shear web, reduces the manufacturing cost of the shear web.
Preferably, in the step S1, transversely opening shallow slot with longitudinal respectively on the surface of core material.
It is staggered shallow slot by the surface in core material, so that the resin flowed in a shallow slot can be interlocked by shallow slot
Structure flow in other shallow slots, to improve resin in the uniformity of core surfaces, improve made shear web
Quality.
Preferably, being parallel to each other between the lateral shallow slot, it is parallel to each other between longitudinal shallow slot, lateral institute
It states and is mutually perpendicular between shallow slot and the shallow slot of longitudinal direction.
The structure makes shallow slot marshalling, to facilitate processing, to reduce the difficulty of processing of shallow slot.
Preferably, further comprising the steps of between the step S1 and step S2:
S11, open through hole in the shallow slot, the through hole extend to the core material towards the one of the glass-fiber-fabric
Side surface.
By opening through hole in the shallow slot of core material, the resin flowed in shallow slot is set to flow into through hole, and edge
Through hole flow to core material towards on a side surface of glass-fiber-fabric, to improve the resin flowing between glass-fiber-fabric and core material
Property, and the adhesive force between glass-fiber-fabric and core material is being improved after hardening of resin, it is strong with the structure for promoting made shear web
Degree.
Preferably, the through hole is located at the lateral shallow slot and longitudinal shallow slot in the step S11
Intersection makes single through hole that can be located at the upper of a lateral shallow slot and a longitudinal shallow slot simultaneously, and raising resin flows into this and passes through
The efficiency of through-hole.
Preferably, the spacing between the lateral shallow slot of arbitrary neighborhood and/or between longitudinal shallow slot is
25mm。
The spacing dimension keeps the spacing between shallow slot not too big, and causes core material can not in the resin flowing of the side surface
Meet uniformity requirement, while also making spacing too small, and improve and open the labor content of shallow slot in core surfaces, causes not
Necessary waste.
Preferably, the width of the shallow slot is 2mm, the depth of the shallow slot is 3mm.
If too small in the width for the shallow slot that core surfaces process, fluid ability of the resin in shallow slot will limit；And it is wide
If degree is excessive, vacuum bag can be made to occur deforming and being covered on shallow slot inner wall after evacuation, resin is similarly will limit and exist
Fluid ability in shallow slot.And if the height of shallow slot is too small, vacuum bag is also easy to be covered on shallow slot inner wall after evacuation, and
If height is excessive, the actual (real) thickness of core material can be reduced, and influence the intensity of core material itself.
Preferably, being laid in vacuum bag in the step S2 according to sequence from bottom to up: glass-fiber-fabric, the core
Material and release cloth, the core material open the side of shallow slot away from the glass-fiber-fabric.
The release cloth is for completely separated by the resin of core material side and vacuum bag after resin solidifies completely, to avoid core
Material passes through the inner surface adhesion of resin and vacuum bag, takes out out of vacuum bag convenient for manufactured shear web.
Preferably, resin is poured into the vacuum bag by the feed inlet of the vacuum bag in the step S4.
The positive effect of the present invention is that:
The shear web manufacturing method on the surface of core material by opening shallow slot, for being in vacuum state in core material
Vacuum bag in when, flow freely in the space that resin can be constituted between vacuum bag and shallow slot, thus real in vacuum bag
Existing water conservancy diversion transmitting.Therefore, which can be good at transmitting in resin infusion instead of the water conservancy diversion that flow-guiding screen carries out resin, thus
The laying that flow-guiding screen can be cancelled when manufacturing shear web, reduces the manufacturing cost of the shear web.
Detailed description of the invention
Fig. 1 is the flow diagram of shear web manufacturing method of the invention.
Fig. 2 is the manufacture status diagram of shear web manufacturing method of the invention.
Fig. 3 is the structural schematic diagram of the core material of shear web manufacturing method of the invention.
Description of symbols:
Core material 1
Shallow slot 11
Through hole 12
Vacuum bag 2, feed inlet 21
Glass-fiber-fabric 3
Release cloth 4
Step S1~S5
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
As depicted in figs. 1 and 2, the present invention provides a kind of shear web manufacturing method, which includes
Following steps:
S1, shallow slot 11 is opened in a side surface of core material 1；
S2, be laid in vacuum bag 2 according to sequence from bottom to up: glass-fiber-fabric 3 and core material 1, core material 1 open the one of shallow slot 11
Side back is from glass-fiber-fabric 3；
S3, the air in vacuum bag 2 is extracted out, is made in vacuum bag 2 for vacuum state；
S4, resin is poured into vacuum bag 2；
S5, manufactured shear web taken out out of vacuum bag 2 after resin solidifies completely.
The shear web manufacturing method on the surface of core material 1 by opening shallow slot 11, for being in vacuum in core material 1
When in the vacuum bag 2 of state, flowed freely in the space that resin can be constituted between vacuum bag 2 and shallow slot 11, thus true
Water conservancy diversion transmitting is realized in empty bag 2.Therefore, which can be good at carrying out leading for resin instead of flow-guiding screen in resin infusion
Stream transmitting, to can cancel the laying of flow-guiding screen when manufacturing shear web, reduces the manufacturing cost of the shear web.Its
In, the cross-sectional shape of the shallow slot 11 can be Qian shape, or the other shapes such as U-shaped.
In the step S1 of the shear web manufacturing method, the surface in core material 1 that can be as shown in Figure 3 respectively transversely and
Open shallow slot 11 in longitudinal direction.By being staggered shallow slot 11 on the surface of core material 1, so that the resin flowed in a shallow slot 11 can lead to
It crosses the staggered structure of shallow slot 11 to flow in other shallow slots 11, to improve resin in the uniformity on 1 surface of core material, improves institute
The quality of manufactured shear web.Wherein, in the present embodiment, mutually flat between the lateral shallow slot 11 on 1 surface of core material
It goes, is also parallel to each other between longitudinal shallow slot 11, and be mutually perpendicular between the shallow slot 11 of lateral shallow slot 11 and longitudinal direction.The structure
Make 11 marshalling of shallow slot, to facilitate processing, to reduce the difficulty of processing of shallow slot 11.
In the present embodiment, further include having step S11 between the step S1 and step S2 of the shear web manufacturing method:
Through hole 12 is opened in shallow slot 11, which extends to a side surface of the core material 1 towards glass-fiber-fabric 3.
By opening through hole 12 in the shallow slot 11 of core material 1, the resin flowed in shallow slot 11 is enable to flow into through hole
In 12, and core material 1 is flowed to towards on a side surface of glass-fiber-fabric 3, to improve glass-fiber-fabric 3 and core material 1 along through hole 12
Between Resin Flow, and the adhesive force between glass-fiber-fabric 3 and core material 1 is being improved after hardening of resin, it is made to be promoted
The structural strength of shear web.Preferably, the boundary of lateral shallow slot 11 and longitudinal shallow slot 11 is arranged in those through holes 12
Place makes single through hole 12 that can be located at the upper of a lateral shallow slot 11 and a longitudinal shallow slot 11 simultaneously, improves resin and flows into and is somebody's turn to do
The efficiency of through hole 12.
It should be pointed out that in figure 2 and figure 3, the shallow slot 11 of core material 1 and the shape and ratio of through hole 12 are only to illustrate
Effect, and the actual size of the shallow slot 11 of non-present invention and through hole 12.
In the step S1 of the shear web manufacturing method, between the lateral shallow slot 11 of arbitrary neighborhood or arbitrary neighborhood
Longitudinal shallow slot 11 between spacing be 25mm.The spacing dimension keeps the spacing between shallow slot 11 not too big, and leads to core
Resin flowing of the material 1 in the side surface is unable to satisfy uniformity requirement, while also making spacing too small, and improves in core material 1
The labor content of shallow slot 11 is opened on surface, causes unnecessary waste.
And if the width of the shallow slot 11 processed on 1 surface of core material is too small, will limit the energy of flow of the resin in shallow slot 11
Power；And if width is excessive, and vacuum bag 2 can be made to occur deforming and being covered on 11 inner wall of shallow slot after evacuation, also the same meeting
Fluid ability of the resin in shallow slot 11 is limited, therefore, the width preferred value of shallow slot 11 is 2mm.And if the height mistake of shallow slot 11
Small, vacuum bag 2 is also easy to be covered on 11 inner wall of shallow slot after evacuation, and if excessive, the actual (real) thickness meeting of core material 1 of height
It reduces, influences the intensity of core material 1 itself, therefore, the highly preferred value of shallow slot 11 is 3mm.
As shown in Fig. 2, in the step S2 of the shear web manufacturing method, it can also be in vacuum according to sequence from bottom to up
Release cloth 4 is laid in bag 2, which is laid on core material 1 departing from the side of glass-fiber-fabric 3, i.e. core material 1 opens the one of shallow slot 11
Side surface.The release cloth 4 for after resin solidifies completely that the resin of 1 side of core material and vacuum bag 2 is completely separated, to avoid
Core material 1 passes through the inner surface adhesion of resin and vacuum bag 2, takes out out of vacuum bag 2 convenient for manufactured shear web.Abdomen to be sheared
Plate after taking out out of vacuum bag 2 may be selected that the release cloth 4 on its surface is torn or retained, but this is existing technology, therefore not
It repeats again.
In addition, resin is to pour into this by the feed inlet 21 of vacuum bag 2 in the step S4 of the shear web manufacturing method
In vacuum bag 2.The feed inlet 21 of vacuum bag 2 has anti-blockage structure, to avoid in vacuum bag 2 when vacuum bag 2 vacuumizes
Material exchange premium block completely on feed inlet 21 and by feed inlet 21, but the specific structure of feed inlet 21 is also existing skill
Art, therefore repeat no more.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the device or component of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (9)
1. a kind of shear web manufacturing method, which is characterized in that it includes the following steps:
S1, shallow slot is opened in a side surface of core material；
S2, be laid in vacuum bag according to sequence from bottom to up: glass-fiber-fabric and the core material, the core material open the side of shallow slot
Away from the glass-fiber-fabric；
S3, the air in the vacuum bag is extracted out, is made in the vacuum bag for vacuum state；
S4, resin is poured into the vacuum bag；
S5, manufactured shear web taken out out of described vacuum bag after resin solidifies completely.
2. shear web manufacturing method as described in claim 1, which is characterized in that in the step S1, in the table of core material
Shallow slot transversely is opened with longitudinal respectively in face.
3. shear web manufacturing method as claimed in claim 2, which is characterized in that mutually flat between the lateral shallow slot
It goes, is parallel to each other between longitudinal shallow slot, be mutually perpendicular between the lateral shallow slot and the shallow slot of longitudinal direction.
4. shear web manufacturing method as claimed in claim 2, which is characterized in that also wrapped between the step S1 and step S2
Include following steps:
S11, through hole is opened in the shallow slot, the through hole extends to the side table towards the glass-fiber-fabric of the core material
Face.
5. shear web manufacturing method as claimed in claim 4, which is characterized in that in the step S11, the through hole
Positioned at the intersection of the lateral shallow slot and longitudinal shallow slot.
6. such as the described in any item shear web manufacturing methods of claim 2-5, which is characterized in that the lateral institute of arbitrary neighborhood
Stating the spacing between shallow slot and/or between longitudinal shallow slot is 25mm.
7. such as the described in any item shear web manufacturing methods of claim 2-5, which is characterized in that the width of the shallow slot is
2mm, the depth of the shallow slot are 3mm.
8. shear web manufacturing method as described in claim 1, which is characterized in that in the step S2, according to from down toward
On sequence be laid in vacuum bag: glass-fiber-fabric, the core material and release cloth, the core material open the side of shallow slot away from the glass
Fine cloth.
9. shear web manufacturing method as described in claim 1, which is characterized in that in the step S4, resin passes through institute
The feed inlet for stating vacuum bag pours into the vacuum bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810712205.0A CN108943764A (en) | 2018-06-29 | 2018-06-29 | Shear web manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810712205.0A CN108943764A (en) | 2018-06-29 | 2018-06-29 | Shear web manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108943764A true CN108943764A (en) | 2018-12-07 |
Family
ID=64484948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810712205.0A Withdrawn CN108943764A (en) | 2018-06-29 | 2018-06-29 | Shear web manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108943764A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822946A (en) * | 2018-12-29 | 2019-05-31 | 中材科技（酒泉）风电叶片有限公司 | A kind of wind electricity blade web perfusion optimization technique |
| CN110242511A (en) * | 2019-05-08 | 2019-09-17 | 上纬新材料科技股份有限公司 | Wind turbine blade production plate, wind turbine blade spar cap structure and preparation method |
| CN111941876A (en) * | 2020-08-12 | 2020-11-17 | 山东英特力新材料有限公司 | Process for solving problem of dry cloth on surface of embedded part in vacuum infusion molding |
| CN111958711A (en) * | 2020-08-31 | 2020-11-20 | 常州兆庚新材料有限公司 | Preparation method of Barsha wood core material of wind driven generator blade web |
| CN112123816A (en) * | 2020-09-11 | 2020-12-25 | 三一重能有限公司 | Wind power blade web pouring method and system |
| CN113738603A (en) * | 2021-08-02 | 2021-12-03 | 上海电气风电集团股份有限公司 | Core material, blade, and method for molding blade |
| CN113954388A (en) * | 2021-09-24 | 2022-01-21 | 上海电气风电集团股份有限公司 | Prefabricated limiting part, wing beam cap, fan blade, manufacturing method and prefabricated plate fixing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350752A (en) * | 2011-09-05 | 2012-02-15 | 株洲时代新材料科技股份有限公司 | Self-guide flow type core material and processing method thereof |
-
2018
- 2018-06-29 CN CN201810712205.0A patent/CN108943764A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350752A (en) * | 2011-09-05 | 2012-02-15 | 株洲时代新材料科技股份有限公司 | Self-guide flow type core material and processing method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822946A (en) * | 2018-12-29 | 2019-05-31 | 中材科技（酒泉）风电叶片有限公司 | A kind of wind electricity blade web perfusion optimization technique |
| CN110242511A (en) * | 2019-05-08 | 2019-09-17 | 上纬新材料科技股份有限公司 | Wind turbine blade production plate, wind turbine blade spar cap structure and preparation method |
| CN110242511B (en) * | 2019-05-08 | 2021-04-30 | 上纬新材料科技股份有限公司 | Sheet material for manufacturing wind turbine blade, wind turbine blade beam cap structure and manufacturing method |
| CN111941876A (en) * | 2020-08-12 | 2020-11-17 | 山东英特力新材料有限公司 | Process for solving problem of dry cloth on surface of embedded part in vacuum infusion molding |
| CN111958711A (en) * | 2020-08-31 | 2020-11-20 | 常州兆庚新材料有限公司 | Preparation method of Barsha wood core material of wind driven generator blade web |
| CN111958711B (en) * | 2020-08-31 | 2021-03-23 | 常州兆庚新材料有限公司 | Preparation method of Barsha wood core material of wind driven generator blade web |
| CN112123816A (en) * | 2020-09-11 | 2020-12-25 | 三一重能有限公司 | Wind power blade web pouring method and system |
| CN113738603A (en) * | 2021-08-02 | 2021-12-03 | 上海电气风电集团股份有限公司 | Core material, blade, and method for molding blade |
| CN113954388A (en) * | 2021-09-24 | 2022-01-21 | 上海电气风电集团股份有限公司 | Prefabricated limiting part, wing beam cap, fan blade, manufacturing method and prefabricated plate fixing method |
| CN113954388B (en) * | 2021-09-24 | 2024-03-12 | 上海电气风电集团股份有限公司 | Prefabricated limiting part, spar cap, fan blade, manufacturing method and prefabricated plate fixing method |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181207 |
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| WW01 | Invention patent application withdrawn after publication |