CN107097434A - A kind of big thickness carbon fiber U-shaped beam VARI moulding process - Google Patents

A kind of big thickness carbon fiber U-shaped beam VARI moulding process Download PDF

Info

Publication number
CN107097434A
CN107097434A CN201710318765.3A CN201710318765A CN107097434A CN 107097434 A CN107097434 A CN 107097434A CN 201710318765 A CN201710318765 A CN 201710318765A CN 107097434 A CN107097434 A CN 107097434A
Authority
CN
China
Prior art keywords
carbon fiber
shaped beam
permeable medium
big thickness
thickness carbon
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.)
Granted
Application number
CN201710318765.3A
Other languages
Chinese (zh)
Other versions
CN107097434B (en
Inventor
王明军
刘伟
舒巍
彭成周
万里程
杨现伟
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.)
Jiangsu Hengshen Co Ltd
Original Assignee
Jiangsu Hengshen 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 Jiangsu Hengshen Co Ltd filed Critical Jiangsu Hengshen Co Ltd
Priority to CN201710318765.3A priority Critical patent/CN107097434B/en
Publication of CN107097434A publication Critical patent/CN107097434A/en
Application granted granted Critical
Publication of CN107097434B publication Critical patent/CN107097434B/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
    • B29C70/04—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
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames

Landscapes

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

Abstract

The invention provides a kind of big thickness carbon fiber U-shaped beam VARI moulding process, by changing VARI injecting glue circuit designs, injecting glue pipeline is arranged therein to the edge strip edge of side, exhaust pipe is arranged on the edge strip of other side, resin is set to reach other side edge strip by web from the edge strip of side, ensure resin during big thickness carbon fiber U-shaped beam is infiltrated, resin is along a direction abreast forward impelling, resin is avoided in big thickness carbon fiber U-shaped beam formation express passway, form Bao Lu, big thickness carbon fiber U-shaped web region is caused to produce dry yarn, the defects such as pin hole, solve the problem of big thickness carbon fiber U-shaped beam VARI technological formings are difficult, improve product quality.

Description

A kind of big thickness carbon fiber U-shaped beam VARI moulding process
Technical field
The present invention relates to a kind of carbon fiber forming technique, more particularly to a kind of carbon fiber VARI moulding process.
Background technology
Composite is in aviation, space flight, and the every field application such as track traffic is more and more extensive, with application demand increasingly It is soaring, to the demand of composite cost also more and more higher, using liquid molding process such as the VARI of low cost some special Structure type in gradually replace autoclave technique, as prevailing technology.The carbon fiber U-shaped beam of big thickness is as typical compound Material structure part, it is widely used, main load-bearing part is commonly used as, big thickness carbon fiber U-shaped beam routinely uses autoclave molding, it is big thick Spend carbon fiber U-shaped beam and carbon fiber VARI techniques are molded as a kind of emerging, low cost composite shaping work using VARI Skill, the problem of having many in application process needs to solve.
It is routinely to arrange permeable medium in the web of U-shaped beam and edge strip region using VARI moulding process carbon fiber U-shaped beams, Permeable medium apart from web edge and edge strip edge 5cm, injecting glue pipeline is arranged in the centre position of U-shaped web, taken out respectively Air pipe is arranged in both sides edge strip, i.e., the mode from " middle injecting glue, both sides pumping " completes VARI injecting glue processes.
Above-mentioned VARI shaping diversion pipeline and air suction mode are molded big thickness carbon fiber U-shaped beam, and resin is along permeable medium " X " direction infiltration the uppermost carbon fiber of web；Meanwhile, resin infiltrates carbon fiber also along " Z " direction to thickness direction, but Flowing velocity of the resin along " X " direction is much larger than the flowing velocity along " Z " direction, when resin edge " X " direction quickly flow to carbon During " R " place of the U-shaped beam both sides of fiber, because the carbon fiber compactness at R angles is poor compared with the carbon fiber at web and edge strip, resin is arrived Up at " R " angle, express passway can be formed, " Z " direction speed of the resin at " R " angle is much larger than " Z " of the resin in web region Direction speed, therefore after resin infiltrates the carbon fiber of " R " Jiao Chu bottom surfaces, resin will be along web most bottom surface carbon fiber back Infiltration, so as to form resin enclosing region in web region bottom surface, ultimately causes the dry yarn in carbon fiber U-shaped soffit, and pin hole etc. is tight Weight defect is produced.
Above-mentioned problem should pay attention to during VARI is molded big thickness carbon fiber U-shaped beam, and need solution Practical problem certainly.
The content of the invention
The purpose of the present invention be overcome in place of the deficiencies in the prior art there is provided a kind of big thickness carbon fiber U-shaped beam VARI into Type technique.
A kind of big thickness carbon fiber U-shaped beam VARI moulding process, including U-shaped beam mould, paste in U-shaped beam mould surrounding and seal Adhesive tape；In the precast body fabric of the big thickness carbon fiber U-shaped beam of U-shaped beam mould inner surface paving, it is coated with and finishes, the demoulding is coated with successively Cloth, permeable medium, arrangement injecting glue pipeline and exhaust pipe, then paste vacuum bag film on sealing joint strip, extract vacuum, inspection Vacuum is surveyed, treats that vacuum reaches more than 980mbar, resin by injection is heating and curing, produces big thickness carbon fiber U-shaped beam product, Wherein, permeable medium disconnects at " R " angle of big thickness carbon fiber U-shaped beam both sides, forms three parts, and respectively left water conservancy diversion is situated between Matter, lower permeable medium and right permeable medium, left permeable medium and right permeable medium are arranged on the edge strip of the left and right sides, under Permeable medium is arranged on the web of bottom, and break distance is 1cm ~ 3cm, lower water conservancy diversion between left permeable medium and lower permeable medium Break distance is 1cm ~ 3cm between medium and right permeable medium.
Injecting glue pipeline is arranged on the side edge strip of big thickness carbon fiber U-shaped beam, and injecting glue pipeline and left permeable medium are direct It is connected, exhaust pipe is arranged on the edge strip of the opposite side of carbon fiber U-shaped beam.
Injected rubber hose route left permeable medium and constituted with winding pipe, and left permeable medium wraps up winding pipe, passes through the side of sewing Winding pipe is fixed in left permeable medium by formula.
Left permeable medium is made up of two layers of flow-guiding screen.
Release cloth is by left release cloth, bottom knockout cloth and right release cloth composition, left release cloth and bottom knockout cloth and bottom knockout Using the form of overlap joint between cloth and right release cloth.
Left permeable medium, lower permeable medium, right permeable medium are 5 ~ 10cm apart from the Edge Distance L1 of carbon fiber U-shaped beam.
Exhaust pipe is by VAP films, and winding pipe and pipeline composition glue sealing joint strip in VAP film edges first, by winding pipe with Pipeline is fixed, and is placed in the middle of VAP films, and winding pipe and pipeline are wrapped in inside VAP films by sealing joint strip.
The big thickness carbon fiber U-shaped beam VARI moulding process that the present invention is provided, will by changing VARI injecting glue circuit designs Injecting glue pipeline is arranged therein the edge strip edge of side, and exhaust pipe is arranged on the edge strip of other side, makes resin from side Edge strip reach other side edge strip by web, it is ensured that resin during big thickness carbon fiber U-shaped beam is infiltrated, resin along One direction abreast forward impelling, it is to avoid resin forms Bao Lu, caused in big thickness carbon fiber U-shaped beam formation express passway Big thickness carbon fiber U-shaped web region produces dry yarn, the defect such as pin hole, solve big thickness carbon fiber U-shaped beam VARI techniques into The problem of type is difficult, improves product quality.
Brief description of the drawings
Fig. 1 is the overall schematic of the present invention.
Fig. 2 is flow-guiding screen and carbon fiber U-shaped beam product position relationship schematic diagram in the present invention.
Fig. 3 is the exhaust pipe schematic diagram of the present invention.
Fig. 4 is the exhaust pipe preparation process schematic diagram of the present invention.
Embodiment
Illustrate the present invention below by specific embodiment.
As shown in figure 1, sealing joint strip 1 is pasted into the both sides of the edge of mould 5, carbon fiber U-shaped beam 3 is coated with the surface of mould 5 The preform of product, is often coated with 8 ~ 10 layers, extracts vacuum preloading in fact once, the preform of carbon fiber U-shaped beam 3, which is coated with, finishes it Afterwards, left release cloth 2, bottom knockout cloth 6, right release cloth 7 are coated with, wherein left release cloth 2 and bottom knockout cloth 6, bottom knockout cloth 6 take off with the right side Mould cloth 7 it is separated, take the form of overlap joint to be constituted, right release cloth 7 include exhaust pipe 9, then repave cover water conservancy diversion Jie Matter, wherein left permeable medium 4 is made up of 2 layers of flow-guiding screen, and including injecting glue pipeline 11, is arranged in above an edge strip together, The lower permeable medium 8 of web region arrangement of carbon fiber U-shaped beam 3, lower permeable medium 8 is separated with left permeable medium 4, disconnection away from From for 2cm ~ 3cm, right permeable medium 10 is arranged on the edge strip of other side, between lower permeable medium 8 and right permeable medium 10 Break distance is 1cm ~ 3cm.Vacuum bag film 12 is finally sealed on sealing joint strip 1, vacuum is extracted, vacuum is detected, vacuum reaches More than 950mbar, resin by injection, elevated cure, you can obtain the carbon fiber U-shaped beam product of big thickness.
As shown in Fig. 2 left permeable medium 4, lower permeable medium 8, right permeable medium 10 apart from the edge of carbon fiber U-shaped beam away from It is 5 ~ 10cm from L1, fully ensures that resin infiltrates the fiber of whole carbon fiber U-shaped beam product by the osmosis of itself.
Exhaust pipe 9 is made up of VAP films 13, winding pipe 14 and pipeline 15.It is close in wherein two side bonds of VAP films 13 first Seal strip 1, winding pipeline 14 is placed in the middle of VAP films 13, sealing VAP films 13 so that winding pipe 14 is tightly wrapped in In VAP films 13, it is connected in exit using pipeline 15 with winding pipe 14, is sealed using sealing joint strip, pipeline 15 is connected to very Empty set is united, you can vacuumized, and detects vacuum, prepares resin by injection.

Claims (7)

1. a kind of big thickness carbon fiber U-shaped beam VARI moulding process, it is characterised in that including U-shaped beam mould（5）, in U-shaped beam form Tool（5）Surrounding pastes sealing joint strip（1）；In U-shaped beam mould（5）The big thickness carbon fiber U-shaped beam of inner surface paving（3）Precast body knit Thing, is coated with and finishes, and release cloth is coated with successively, and permeable medium arranges injecting glue pipeline（11）And exhaust pipe（9）, then by vacuum Bag film（12）Paste sealing joint strip（1）On, vacuum is extracted, vacuum is detected, treats that vacuum reaches more than 980mbar, is injected Resin, is heating and curing, and produces big thickness carbon fiber U-shaped beam product, wherein, permeable medium is in big thickness carbon fiber U-shaped beam both sides " R " angle at disconnect, formed three parts, respectively left permeable medium（4）, lower permeable medium（8）With right permeable medium（10）, it is left Permeable medium（4）With right permeable medium（10）It is arranged on the edge strip of the left and right sides, lower permeable medium（8）It is arranged in bottom Web on, left permeable medium（4）With lower permeable medium（8）Between break distance be 1cm ~ 3cm, lower permeable medium（8）With the right side Permeable medium（10）Between break distance be 1cm ~ 3cm.
2. big thickness carbon fiber U-shaped beam VARI moulding process according to claim 1, it is characterised in that injecting glue pipeline （11）It is arranged in big thickness carbon fiber U-shaped beam（3）Side edge strip on, injecting glue pipeline（11）With left permeable medium（4）Direct phase Even, exhaust pipe（9）It is arranged in carbon fiber U-shaped beam（3）Opposite side edge strip on.
3. big thickness carbon fiber U-shaped beam VARI moulding process according to claim 1 or 2, it is characterised in that injecting glue pipeline （11）By left permeable medium（4）With winding pipe（14）Composition, left permeable medium（4）By winding pipe（14）Parcel, passes through sewing Mode is by winding pipe（14）It is fixed on left permeable medium（4）It is interior.
4. big thickness carbon fiber U-shaped beam VARI moulding process according to claim 1, it is characterised in that left permeable medium （4）It is made up of two layers of flow-guiding screen.
5. big thickness carbon fiber U-shaped beam VARI moulding process according to claim 1, it is characterised in that release cloth is by a left side Release cloth（2）, bottom knockout cloth（6）With right release cloth（7）Composition, left release cloth（2）With bottom knockout cloth（6）And bottom knockout cloth （6）With right release cloth（7）Between using overlap joint form.
6. big thickness carbon fiber U-shaped beam VARI moulding process according to claim 1, it is characterised in that left permeable medium （4）, lower permeable medium（8）, right permeable medium（10）It is 5 ~ 10cm apart from the Edge Distance L1 of carbon fiber U-shaped beam.
7. big thickness carbon fiber U-shaped beam VARI moulding process according to claim 1, it is characterised in that exhaust pipe（9） By VAP films（13）, winding pipe（14）And pipeline（15）Composition, first in VAP films（13）Glue sealing joint strip in edge（1）, will wind Pipe（14）With pipeline（15）It is fixed, it is placed on VAP films（13）Centre, passes through sealing joint strip（1）By winding pipe（14）With pipeline （15）It is wrapped in VAP films（13）It is internal.
CN201710318765.3A 2017-05-08 2017-05-08 Large-thickness carbon fiber U-shaped beam VARI forming process Active CN107097434B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710318765.3A CN107097434B (en) 2017-05-08 2017-05-08 Large-thickness carbon fiber U-shaped beam VARI forming process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710318765.3A CN107097434B (en) 2017-05-08 2017-05-08 Large-thickness carbon fiber U-shaped beam VARI forming process

Publications (2)

Publication Number Publication Date
CN107097434A true CN107097434A (en) 2017-08-29
CN107097434B CN107097434B (en) 2020-04-03

Family

ID=59668868

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710318765.3A Active CN107097434B (en) 2017-05-08 2017-05-08 Large-thickness carbon fiber U-shaped beam VARI forming process

Country Status (1)

Country Link
CN (1) CN107097434B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112123812A (en) * 2020-08-05 2020-12-25 上海复合材料科技有限公司 Large-size light composite material barrel with flange and integrated forming method thereof
CN114274550A (en) * 2021-12-14 2022-04-05 洛阳双瑞橡塑科技有限公司 Polyhedron forming die and process based on VARI forming process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106564202A (en) * 2016-09-23 2017-04-19 中航复合材料有限责任公司 Method for preparing hybrid composite U-shaped piece through vacuum leading-in forming

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106564202A (en) * 2016-09-23 2017-04-19 中航复合材料有限责任公司 Method for preparing hybrid composite U-shaped piece through vacuum leading-in forming

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112123812A (en) * 2020-08-05 2020-12-25 上海复合材料科技有限公司 Large-size light composite material barrel with flange and integrated forming method thereof
CN114274550A (en) * 2021-12-14 2022-04-05 洛阳双瑞橡塑科技有限公司 Polyhedron forming die and process based on VARI forming process

Also Published As

Publication number Publication date
CN107097434B (en) 2020-04-03

Similar Documents

Publication Publication Date Title
CN101830095B (en) Composite material member with surface function layer and VIMP preparation method thereof
CN106564202B (en) A kind of method that vacuum importing molding prepares the U-shaped part of hybrid composite
CN103042700B (en) Integrated forming method and device for segmented blade
CN108638541B (en) Blade shell and web integrated forming method and blade forming method
CN105128358A (en) Manufacturing method for wind power blade
CN105690790B (en) Composite material blade integral formation method and device used for wind power generation
CN103042701B (en) Integrated formation device and method for wind power blade
CN102529109B (en) Method for integrally molding wind driven generator blade shell and front edge bonding angle
CN102582092A (en) Vacuum infusion molding method for thick-size carbon fiber product
CN109109341B (en) Preparation method of wind power blade
CN106426988B (en) Prevent root end face from the preparation method of the MW class wind turbine pre-embedded bolt root of blade in cavity occur
CN1291831C (en) Composite material vacuum auxiliary forming process
CN103737946B (en) A kind of forming method of two-ply foam sandwich structure polymer matrix composites
CN105269838A (en) Fan blade main beam manufacturing method and fan blade
CN105216344A (en) Vacuum infusion molding process for compound
CN102152481B (en) Integrated molding and pouring process for semi-enclosed glass fiber reinforced plastic products with infolded flanges
CN104309133A (en) A preparing method of a composite-material pentahedral rectangular cabin
CN107097434A (en) A kind of big thickness carbon fiber U-shaped beam VARI moulding process
CN106476303A (en) A kind of vacuum leading-in method and its product
CN104943193A (en) Integral molding method of wind power blade
CN109203516B (en) Manufacturing method of wind power blade
CN102672978B (en) Technique for manufacturing blade of wind-driven generator
CN105140326B (en) A kind of structural member with photovoltaic module and preparation method thereof
CN115583051B (en) Apparatus, system and molding method for resin transfer molding
CN205553264U (en) Low cost production device of thin wall combined material skin structure spare

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