CN107225778B - The forming method of blade girder - Google Patents

The forming method of blade girder Download PDF

Info

Publication number
CN107225778B
CN107225778B CN201610169732.2A CN201610169732A CN107225778B CN 107225778 B CN107225778 B CN 107225778B CN 201610169732 A CN201610169732 A CN 201610169732A CN 107225778 B CN107225778 B CN 107225778B
Authority
CN
China
Prior art keywords
diversion pipe
blade
girder
diversion
blade girder
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.)
Active
Application number
CN201610169732.2A
Other languages
Chinese (zh)
Other versions
CN107225778A (en
Inventor
闫冰
崔锋锋
郝薛妹
吴洁
田晓峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ailang Technology Co.,Ltd.
Original Assignee
Shanghai Ai Feng Wind Technology Development (group) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Ai Feng Wind Technology Development (group) Co Ltd filed Critical Shanghai Ai Feng Wind Technology Development (group) Co Ltd
Priority to CN201610169732.2A priority Critical patent/CN107225778B/en
Publication of CN107225778A publication Critical patent/CN107225778A/en
Application granted granted Critical
Publication of CN107225778B publication Critical patent/CN107225778B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B29C70/68—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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
    • 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
    • B29C70/68—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
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The invention discloses a kind of forming methods of blade girder.For the forming method the following steps are included: being successively laid with first order layers of reinforcement, release cloth and flow-guiding screen on blade girder mold, progress first time vacuum infusion molding forms half-formed blade girder；Half-formed blade girder is placed in blade main mould shell；It is laid with second level layers of reinforcement above half-formed blade girder, third level layers of reinforcement, release cloth and flow-guiding screen are successively laid on blade main mould shell, carries out second of vacuum infusion molding.The forming method by big MW class, blade girder that layers of reinforcement is thicker be divided into and forming twice, solve the problems, such as the local layer of cloth envelope of blade girder, improve the Forming Quality of blade girder, to improve the quality of blade.

Description

The forming method of blade girder
Technical field
The present invention relates to a kind of forming method of blade girder, in particular to a kind of blade girder for solving girder envelope Forming method.
Background technique
2MW grades or more wind electricity blade is the mating critical component of high-power blower needed for Wind Power Development, at present both at home and abroad all Develop to high-power large-sized wind electricity blade direction.But it is limited to the limitation of process materials and research and development ability, blower enters quotient Industryization application mostly on 1.5MW or less.Girder is the critical component of blade production, and previous 1.5MW or less blade girder fills Note is all one-pass molding, and 2MW girder layer of cloth is thicker, width is larger, is difficult one-pass molding.
If 2MW girder uses one-pass molding, the part of girder is likely to result in and is not seeped due to the flow velocity difference of upper and lower resin Saturating resin or infiltration are uneven, layer of cloth envelope are formed, so that the Forming Quality of blade is poor.
Summary of the invention
The technical problem to be solved by the present invention is to the defects in order to overcome prior art blade second-rate, provide a kind of leaf The forming method of piece girder.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of forming method of blade girder, it is characterized in that comprising following steps:
S1, be successively laid with first order layers of reinforcement, release cloth and flow-guiding screen on blade girder mold, carry out for the first time Vacuum infusion molding forms half-formed blade girder；
S2, the half-formed blade girder is placed in blade main mould shell；
S3, above the half-formed blade girder be laid with second level layers of reinforcement, on the blade main mould shell It is successively laid with third level layers of reinforcement, release cloth and flow-guiding screen, carries out second of vacuum infusion molding.
The blade girder is formed by vacuum infusion molding twice, and the first time vacuum infusion molding is described The independent vacuum infusion molding of blade girder, second of vacuum infusion molding are the half-formed blade girders in the leaf It carries out in piece main mould shell, is carried out simultaneously with the vacuum infusion molding of the blade.Second of the blade girder is true Empty form is realized in the forming process of the blade, not only ensure that the Forming Quality of the blade girder, but also can mention High perfusion efficiency.
Release cloth is the auxiliary material during vacuum infusion molding, mainly covers polytetrafluoro on the one side way of glass cloth Ethylene, another side way pressure sensitive adhesive are made, wherein glass cloth is the fabric being made into glass fibre.Flow-guiding screen is used for priming by vacuum In molding, resin can be made equably to penetrate into each position, the material of flow-guiding screen is polyethylene, abbreviation PE.
Preferably, the step S2The following steps are included:
S21, in the blade main mould shell be laid with continuous felt；
S22, the half-formed blade girder pressure is set to the continuous felt；
Wherein, the width of the continuous felt is equal to the width of the blade girder, and the continuous felt is stretched in the width direction The rear of the blade girder out.
The effect of the continuous felt is mainly resin penetration water conservancy diversion, and excludes air entrapment.The half-formed blade master Beam is essentially a glass reinforced plastic, the flowing for the top resin of the half-formed blade girder, and resin is described by being layed in Flow-guiding screen on blade main mould shell penetrates into the leading edge of the blade girder from the rear of the blade girder；For described half The flowing of the lower section resin of formed blades girder, resin first flow down to the blade from the upper vertical of the blade girder Then the lower section of girder penetrates into institute from the rear of the blade girder by the continuous felt of the lower section of the blade girder State the leading edge of blade girder.The continuous felt is stretched out to the rear of the blade girder in the width direction, i.e., the described continuous felt is wrong To in the rear of the blade girder, convenient for the flowing of resin below the blade girder.
Preferably, the continuous felt has several fractures along its length, the company at each fracture both ends It connects felt and flushes connection.
The fracture is set on the continuous felt, by the fracture, by the first order in the blade girder The thicker region of the layers of reinforcement region relatively thin with the first order layers of reinforcement separates, and can preferably balance described The flowing velocity of resin, subtracts in the relatively thin region of the thicker region of first order layers of reinforcement, the first order layers of reinforcement Less or avoid as resin flowing velocity is uneven and caused by local envelope or air entrapment can not be discharged, thus, improve The Forming Quality of the blade girder.
Preferably, the step S3The following steps are included:
S31, blade butt setting be connected to the blade girder rear one first diversion pipe；
S32, in the butt setting of the blade be connected to up-front one second diversion pipe of the blade girder；
S33, rear in first diversion pipe close to the blade side interval more third diversion pipes are set；
S34, in second diversion pipe more 4th diversion pipes are set close to the up-front side interval of the blade；
S35, rear in first diversion pipe close to the blade side interval more 5th diversion pipes are set；
S36, respectively by first diversion pipe, second diversion pipe, the third diversion pipe, the 4th diversion pipe, 5th diversion pipe is connected with vacuum evacuation device, injecting glue pipeline；
S37, be laid with sealing film for sealing the blade；
Wherein, the axis direction of first diversion pipe, the axis direction of second diversion pipe, each third are led The axis direction of flow tube, each 4th diversion pipe axis direction be each perpendicular to the chord length direction of the blade；Described The center in the head end face of one diversion pipe, the center in the head end face of second diversion pipe, more third diversion pipes head end The center in the head end face of the 4th diversion pipe described in the center in face and Duo Gen is located on the same chord length direction of the blade；
The axis direction of more 5th diversion pipes is located at the axis direction of the more third diversion pipes same respectively On one straight line, and between the terminal surface for the third diversion pipe being located along the same line and the head end face of the 5th diversion pipe With an open gap, and the open gap is 100mm.
First diversion pipe, second diversion pipe, the third diversion pipe and the 4th diversion pipe centre bit In on the same chord length direction of the blade, i.e., described first diversion pipe, second diversion pipe, the third diversion pipe and institute The starting point for stating the 4th diversion pipe is identical, primarily to convenient for control.
Since the width of the rear of the blade is greater than the up-front width of the blade, in the rear close to the blade More 5th diversion pipes are set at position, mainly for accelerating the flowing speed of the resin at the posterior border position of the blade Degree.
When opening the 5th diversion pipe and close the third diversion pipe, in order to prevent from the 5th diversion pipe stream Resin penetration out influences the bubble below the third diversion pipe in the reinforcing material layer of cloth to the third diversion pipe Discharge, needs between the terminal surface of the third diversion pipe and the head end face of the 5th diversion pipe that there are between the disconnection Gap.
100mm is set by the open gap, on the one hand, if the open gap is excessive, the third diversion pipe Might have partial region between the 5th diversion pipe cannot be arrived by resin penetration；On the other hand, if between the disconnection Gap is too small, and the open gap does not work substantially, still has resin and penetrates into the third from the 5th diversion pipe and leads Flow tube.
Preferably, first diversion pipe, second diversion pipe, each third diversion pipe, each described 4th A feed inlet is equipped on diversion pipe and each 5th diversion pipe；
The length of first diversion pipe is greater than the length of the blade girder, is arranged at intervals on first diversion pipe Multiple feed inlets；
Gap between the adjacent two third diversion pipe is 450~500mm, between adjacent two the 4th diversion pipe Gap be 450~500mm, first diversion pipe and close to the gap between its third diversion pipe be 450~ 500mm, second diversion pipe and close to the gap between its 4th diversion pipe be 450~500mm.
The length of first diversion pipe is longer, in order to accelerate the flowing velocity of resin in it, needs to lead described first The feed inlet in flow tube is set as multiple.And the spacing between the number of the feed inlet and each feed inlet thereon It needs to comprehensively consider the factors such as resin flowing velocity, cost to be configured.
By taking the gap between the adjacent two third diversion pipe as an example, if the gap is excessive, it is possible that two institutes Stating the partial region between third diversion pipe will not be arrived by resin penetration；If the gap is too small, it is possible that described in two Partial region resin between third diversion pipe is excessive, causes in the reinforcing material layer of cloth corresponding with the partial region The discharge of bubble, thus after the completion of influencing vacuum infusion molding the blade quality.
Preferably, the first order layers of reinforcement, the second level layers of reinforcement, the third level layers of reinforcement Material be glass fibre.
The first order layers of reinforcement and the layers of reinforcement constitute the layers of reinforcement of the blade girder, institute State the reinforcing material being layed on the blade main mould shell when third level layers of reinforcement is the blade vacuum form Layer, the third level layers of reinforcement can directly be layed in the second level layers of reinforcement.
The first order reinforcing material glass fibre is a kind of inorganic non-metallic material haveing excellent performance, and heat resistance is strong, anti- Corrosivity is good, mechanical strength is higher.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention Example.
The positive effect of the present invention is that:
The forming method of blade girder in the present invention is by big MW class, the blade girder that layers of reinforcement is thicker It is divided into and forms twice, what second of molding of the blade girder was completed together with the vacuum infusion molding of blade, solve institute The local layer of cloth envelope problem for stating blade girder, improves the Forming Quality of the blade girder, to improve the blade Quality；Meanwhile also improving shaping efficiency.
Detailed description of the invention
Fig. 1 is a preferred embodiment of the present invention the flow chart of the forming method of blade girder.
Fig. 2 is a preferred embodiment of the present invention the first diversion pipe, the second diversion pipe, third diversion pipe, the 4th diversion pipe With the laying structure schematic diagram of the 5th diversion pipe.
Fig. 3 is a preferred embodiment of the present invention the knot of the first diversion pipe, the second diversion pipe and blade girder relative position Structure schematic diagram.
Description of symbols:
1: the first diversion pipe
2: the second diversion pipes
3: third diversion pipe
4: the four diversion pipes
5: the five diversion pipes
6: chord length direction
7: open gap
8: feed inlet
9: blade girder
100-112: step
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 shown in Figure 1, a kind of forming method of blade girder comprising following steps:
Step 100, it is successively laid with first order layers of reinforcement, release cloth and flow-guiding screen on blade girder mold, carries out First time vacuum infusion molding forms half-formed blade girder；
Step 101, the half-formed blade girder is placed in blade main mould shell；
Step 102, continuous felt is laid in the blade main mould shell；
Step 103, the half-formed blade girder pressure is set to the continuous felt；
Step 104, second level layers of reinforcement is laid with above the half-formed blade girder, in the blade main mould shell Third level layers of reinforcement, release cloth and flow-guiding screen are successively laid on body；
Step 105, the first diversion pipe of the rear of the blade girder is connected in the butt setting of blade；
Step 106, up-front second diversion pipe of the blade girder is connected in the butt setting of the blade；
Step 107, more third water conservancy diversion are arranged in the side interval of the rear in first diversion pipe close to the blade Pipe；
Step 108, more 4th water conservancy diversion are set close to the up-front side interval of the blade in second diversion pipe Pipe；
Step 109, more 5th water conservancy diversion are arranged in the side interval of the rear in first diversion pipe close to the blade Pipe；
Step 110, first diversion pipe, second diversion pipe, the third diversion pipe, the described 4th are led respectively Flow tube, the 5th diversion pipe are connected with vacuum evacuation device, injecting glue pipeline；
Step 111, it is laid with the sealing film for sealing the blade；
Step 112, second of vacuum infusion molding is carried out.
The blade girder is formed by vacuum infusion molding twice, and the first time vacuum infusion molding is described The independent vacuum infusion molding of blade girder, second of vacuum infusion molding are the half-formed blade girders in the leaf It carries out in piece main mould shell, is carried out simultaneously with the vacuum infusion molding of the blade.Second of the blade girder is true Empty form is realized in the forming process of the blade, not only ensure that the Forming Quality of the blade girder, but also can mention High perfusion efficiency.
Wherein, the width of the continuous felt is equal to the width of the blade girder, and the continuous felt is stretched in the width direction The rear of the blade girder out.
The half-formed blade girder is essentially a glass reinforced plastic, for the top resin of the half-formed blade girder Flowing, resin penetrate into the leaf from the rear of the blade girder by the flow-guiding screen being layed on the blade main mould shell The leading edge of piece girder；Flowing for the lower section resin of the half-formed blade girder, resin is first from the upper of the blade girder Square vertical downflow is to the lower section of the blade girder, then by the continuous felt of the lower section of the blade girder from institute The rear for stating blade girder penetrates into the leading edge of the blade girder.The continuous felt is stretched out into the blade master in the width direction The rear of beam, i.e., the described continuous felt misorientation is in the rear of the blade girder, convenient for the flowing of resin below the blade girder.
Present embodiment is by taking a kind of vacuum infusion method of the blade of wind-driven generator of 2.0MW/56.5m as an example.Such as Fig. 2 institute Show, the first diversion pipe 1 is 1, and the second diversion pipe is 1, and third diversion pipe is 3, and the 4th diversion pipe is 2, the 5th water conservancy diversion Pipe is 3；Chord length direction 6 of the axis direction of first diversion pipe 1 perpendicular to the blade；The axis direction of second diversion pipe 2 Perpendicular to the chord length direction 6 of the blade；Chord length direction of the axis direction of each third diversion pipe 3 perpendicular to the blade 6；Chord length direction 6 of the axis direction of each 4th diversion pipe 4 perpendicular to the blade；The axis of each 5th diversion pipe 5 Chord length direction 6 of the line direction perpendicular to the blade.
In the present embodiment, as shown in Fig. 2, the head end at the center in the head end face of the first diversion pipe 1, the second diversion pipe 2 The center in face, the center in head end face of 3 third diversion pipes 3 and the center in head end face of 2 the 4th diversion pipes 4 are located at the leaf On the same chord length direction 6 of piece.
First diversion pipe 1, the second diversion pipe 2, third diversion pipe 3 and the 4th diversion pipe 4 center be located at the blade On same chord length direction 6, i.e. the first diversion pipe 1, the second diversion pipe 2, third diversion pipe 3 are identical with the starting point of the 4th diversion pipe 4, Primarily to convenient for control.
In the present embodiment, the continuous felt under the blade girder is placed as being pressed in misorientation under the blade girder Rear 30mm, the continuous felt have along its length there are two fracture, two fractures respectively in the 15m of the blade and The connection felt of the position of the corresponding blade girder of 45m, each fracture both ends flushes connection.
The fracture is set on the continuous felt, by the fracture, by the first order in the blade girder The thicker region of the layers of reinforcement region relatively thin with the first order layers of reinforcement separates, and can preferably balance described The flowing velocity of resin, subtracts in the relatively thin region of the thicker region of first order layers of reinforcement, the first order layers of reinforcement Less or avoid as resin flowing velocity is uneven and caused by local envelope or air entrapment can not be discharged, thus, improve The Forming Quality of the blade girder.
As shown in Fig. 2, axis direction of the axis direction of 3 the 5th diversion pipes 5 respectively with 3 third diversion pipes 3 is located at On same straight line, and have between the terminal surface for the third diversion pipe 3 being located along the same line and the head end face of the 5th diversion pipe 5 One open gap 7, and open gap 7 is 100mm.
Since the width of the rear of the blade is greater than the up-front width of the blade, in the rear close to the blade 3 the 5th diversion pipes 5 are set at position, mainly for accelerating the flowing velocity of the resin at the posterior border position of the blade.
When opening the 5th diversion pipe 5 and close third diversion pipe 3, in order to prevent from the resin of the 5th diversion pipe 5 outflow It penetrates into third diversion pipe 3 and influences the bubble discharge in the 3 lower section reinforcing material layer of cloth of third diversion pipe, need in third There are open gaps 7 between the terminal surface of diversion pipe 3 and the head end face of the 5th diversion pipe 5.
It will be switched off gap 7 and be set as 100mm, on the one hand, if open gap 7 is excessive, third diversion pipe 3 and the 5th water conservancy diversion Might have partial region between pipe 5 cannot be arrived by resin penetration；On the other hand, if open gap 7 is too small, open gap 7 Substantially it does not work, still has resin from the 5th diversion pipe 5 and penetrate into third diversion pipe 3.
As shown in Fig. 2, the second diversion pipe 2, each third diversion pipe 3, each 4th diversion pipe 4 and each 5th A feed inlet 8 is equipped on diversion pipe 5；As shown in Figures 2 and 3, the length of the first diversion pipe 1 is greater than the length of blade girder 9, 3 feed inlets 8 are arranged at intervals on first diversion pipe 1.
The length of first diversion pipe 1 is longer, sets 3 for the feed inlet 8 on the first diversion pipe 1, primarily to plus The flowing velocity of its fast interior resin.
Spacing between the number and each feed inlet 8 of the enterprising material mouth 8 of first diversion pipe 1 needs to comprehensively consider resin flowing The factors such as speed, cost are configured, and in other embodiments, the number of the enterprising material mouth 8 of the first diversion pipe 1 can be according to reality Border needs to be set as different numbers.
The sealing film is vacuum bag film；The first order layers of reinforcement, the second level layers of reinforcement, described The material of three-level layers of reinforcement is glass fibre；The up-front water conservancy diversion of the flow-guiding screen of the butt of the blade and the blade Net is the double-deck flow-guiding screen.
The flow-guiding screen is set as double-deck, on the one hand, the interior tree of the leading edge of the butt, the blade that can accelerate the blade The flowing velocity of rouge；On the other hand, convenient for the butt of the blade is promptly discharged, the bubble in the leading edge of the blade.
In addition, enhancing about the flow-guiding screen being layed on the blade main mould shell in the third level of the blade At the thicker position of material layer, flow-guiding screen can be cut.By cutting flow-guiding screen, the third level layers of reinforcement is balanced The flowing velocity of resin, improves the Forming Quality of the blade in thicker region and thinner region.
In the present embodiment, in step 100 and step 104, after being laid with release cloth and before being laid with flow-guiding screen, also Comprising steps of being laid with porous release film on release cloth.
The porous release film is laid with primarily to being convenient for after vacuum infusion molding flow-guiding screen and release cloth point It opens.In addition, if release cloth has been subjected to specially treated, such as by having the Teflon (polytetrafluoroethylene (PTFE)) of non-adhesiveness to handle, It can relatively easily be separated with flow-guiding screen, then the step can be omitted.
For convenient for distinguishing, 3 third diversion pipes 3 are divided for outside third diversion pipe, intermediate third diversion pipe, inside third Diversion pipe divides 2 the 4th diversion pipes 4 for the 4th diversion pipe of outside and inside third diversion pipe.Wherein, the outside third is led Flow tube is close to the rear of the blade, the inside third diversion pipe close to the first diversion pipe 1；The 4th diversion pipe of outside leans on The leading edge of the nearly blade, the 4th diversion pipe of the inside are close to the second diversion pipe 2.
In Fig. 2, during gap between the outside third diversion pipe and the intermediate third diversion pipe is 450mm, is described Between gap between third diversion pipe and the inside third diversion pipe be 500mm, the inside third diversion pipe and first is led Gap between flow tube 1 is 500mm；Gap between the 4th diversion pipe of outside and the 4th diversion pipe of the inside is Gap between 450mm, the 4th diversion pipe of the inside and the second diversion pipe 2 is 500mm.In addition, the first diversion pipe 1 and second Gap between diversion pipe 2 is 630mm, of same size with the blade girder.
The thicker blade girder of layers of reinforcement is divided by the present invention to be formed twice, and second of the blade girder What molding was completed together with the vacuum infusion molding of the blade, solve the problems, such as the local layer of cloth envelope of the blade girder, The Forming Quality of the blade girder is improved, to improve the quality of the blade；Meanwhile also improving shaping efficiency.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back Under the premise of from the principle and substance of the present invention, many changes and modifications may be made, but these are changed Protection scope of the present invention is each fallen with modification.

Claims (5)

1. a kind of forming method of blade girder, which is characterized in that itself the following steps are included:
S1, be successively laid with first order layers of reinforcement, release cloth and flow-guiding screen on blade girder mold, carry out first time vacuum Form forms half-formed blade girder；
S2, the half-formed blade girder is placed in blade main mould shell；
S3, above the half-formed blade girder be laid with second level layers of reinforcement, successively spread on the blade main mould shell If third level layers of reinforcement, release cloth and flow-guiding screen, second of vacuum infusion molding is carried out；
The step S3The following steps are included:
S31, blade butt setting be connected to the blade girder rear one first diversion pipe；
S32, in the butt setting of the blade be connected to up-front one second diversion pipe of the blade girder；
S33, rear in first diversion pipe close to the blade side interval more third diversion pipes are set；
S34, in second diversion pipe more 4th diversion pipes are set close to the up-front side interval of the blade；
S35, rear in first diversion pipe close to the blade side interval more 5th diversion pipes are set；
S36, respectively by first diversion pipe, second diversion pipe, the third diversion pipe, the 4th diversion pipe, described 5th diversion pipe is connected with vacuum evacuation device, injecting glue pipeline；
S37, be laid with sealing film for sealing the blade；
Wherein, the axis direction of first diversion pipe, the axis direction of second diversion pipe, each third diversion pipe Axis direction, each 4th diversion pipe axis direction be each perpendicular to the chord length direction of the blade；Described first leads The center in the head end face of flow tube, the center in the head end face of second diversion pipe, more third diversion pipes head end face The center in the head end face of the 4th diversion pipe described in center and Duo Gen is located on the same chord length direction of the blade；
The axis direction of more 5th diversion pipes is located at the axis direction of the more third diversion pipes with always respectively On line, and have between the terminal surface for the third diversion pipe being located along the same line and the head end face of the 5th diversion pipe One open gap, and the open gap is 100mm.
2. the forming method of blade girder as described in claim 1, which is characterized in that the step S2The following steps are included:
S21, in the blade main mould shell be laid with continuous felt；
S22, the half-formed blade girder pressure is set to the continuous felt；
Wherein, the width of the continuous felt is equal to the width of the blade girder, and the continuous felt stretches out institute in the width direction State the rear of blade girder.
3. the forming method of blade girder as claimed in claim 2, which is characterized in that the continuous felt has along its length The continuous felt of several fractures, each fracture both ends flushes connection.
4. the forming method of blade girder as described in claim 1, which is characterized in that first diversion pipe, described second Be equipped on diversion pipe, each third diversion pipe, each 4th diversion pipe and each 5th diversion pipe one into Material mouth；
The length of first diversion pipe is greater than the length of the blade girder, is arranged at intervals on first diversion pipe multiple The feed inlet；
Gap between the adjacent two third diversion pipe is 450~500mm, the gap between adjacent two the 4th diversion pipe It is 450~500mm, institute for 450~500mm, first diversion pipe and close to the gap between its third diversion pipe State the second diversion pipe and close to the gap between its 4th diversion pipe be 450~500mm.
5. the forming method of the blade girder as described in claim 1-4 any one, which is characterized in that the first order enhancing Material layer, the second level layers of reinforcement, the material of the third level layers of reinforcement are glass fibre.
CN201610169732.2A 2016-03-23 2016-03-23 The forming method of blade girder Active CN107225778B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610169732.2A CN107225778B (en) 2016-03-23 2016-03-23 The forming method of blade girder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610169732.2A CN107225778B (en) 2016-03-23 2016-03-23 The forming method of blade girder

Publications (2)

Publication Number Publication Date
CN107225778A CN107225778A (en) 2017-10-03
CN107225778B true CN107225778B (en) 2019-06-25

Family

ID=59931492

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610169732.2A Active CN107225778B (en) 2016-03-23 2016-03-23 The forming method of blade girder

Country Status (1)

Country Link
CN (1) CN107225778B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101905538A (en) * 2010-01-14 2010-12-08 连云港中复连众复合材料集团有限公司 Process for integrally manufacturing megawatt wind turbine blade
CN104416919A (en) * 2013-08-28 2015-03-18 上海艾郎风电科技发展有限公司 Method for integrally forming master mold and girder of wind turbine blade
CN105269837A (en) * 2015-10-28 2016-01-27 北京金风科创风电设备有限公司 Girder prefabricated part and manufacturing method thereof, and blade and manufacturing method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9073270B2 (en) * 2009-01-21 2015-07-07 Vestas Wind Systems A/S Method of manufacturing a wind turbine blade by embedding a layer of pre-cured fibre reinforced resin

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101905538A (en) * 2010-01-14 2010-12-08 连云港中复连众复合材料集团有限公司 Process for integrally manufacturing megawatt wind turbine blade
CN104416919A (en) * 2013-08-28 2015-03-18 上海艾郎风电科技发展有限公司 Method for integrally forming master mold and girder of wind turbine blade
CN105269837A (en) * 2015-10-28 2016-01-27 北京金风科创风电设备有限公司 Girder prefabricated part and manufacturing method thereof, and blade and manufacturing method thereof

Also Published As

Publication number Publication date
CN107225778A (en) 2017-10-03

Similar Documents

Publication Publication Date Title
CN107160711B (en) Vacuum infusion method for blade
CN103921457B (en) A kind of unidirectional sheet material adopting pultrude process to manufacture manufactures the method for fan blade main beam or auxiliary beam
JP4903232B2 (en) Method and apparatus for providing a polymer for use in a vacuum injection method
CN109826761A (en) The structure of fluting perforation processing is cut for core surfaces
CN106142593A (en) The method manufacturing article of fiber reinforced plastics
CN106378941A (en) Vacuum pouring method for fan blade
CN106671445A (en) Pouring forming method of wind driven generator blade bonding corners
CN102358047B (en) Method for manufacturing wind wheel blade by vacuum suction and injection
CN104175570B (en) Method for integrally preparing blade auxiliary beam and blade shell of megawatt wind turbine
CN102529109A (en) Method for integrally molding wind driven generator blade shell and front edge bonding angle
CN102756481A (en) Manufacturing method of carbon fiber girder for fan blade
CN106378942A (en) Manufacturing and installation method of megawatt-stage wind turbine blade girder cap
CN107225778B (en) The forming method of blade girder
CN111070730B (en) Vacuum perfusion method for wind power blade
JP2010115837A (en) Method of manufacturing composite material product
CN108407339A (en) A kind of wind wheel blade and its outer reinforcement pouring and molding method
CN209141488U (en) A kind of rear edge of wind turbine blade bonding angle molding machine
CN104416919A (en) Method for integrally forming master mold and girder of wind turbine blade
CN108661852A (en) Composite protection layer and blade
CN115583051B (en) Apparatus, system and molding method for resin transfer molding
CN210422886U (en) Fan blade trailing edge bonding structure
CN112848390A (en) Vacuum infusion method for wind driven generator blade
CN110328867A (en) A kind of fan blade water conservancy diversion method for arranging
CN1721161A (en) Vacuum auxiliary pouring method for vane of large-scale wind mill
CN106149357A (en) A kind of method of carbon fiber surface load CNT

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 201306 Building 1, 1318 Miaoxiang Road, Lingang New District, Pudong New Area, Shanghai

Patentee after: Ailang Technology Co.,Ltd.

Address before: No.1989 xuanhuang Road, Pudong New Area, Shanghai, 201300

Patentee before: SHANGHAI AEOLON WIND ENERGY TECHNOLOGY DEVELOPMENT (Group) Co.,Ltd.