CN106273535A - A kind of forming method of semiclosed composite structure - Google Patents

A kind of forming method of semiclosed composite structure Download PDF

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Publication number
CN106273535A
CN106273535A CN201510305143.8A CN201510305143A CN106273535A CN 106273535 A CN106273535 A CN 106273535A CN 201510305143 A CN201510305143 A CN 201510305143A CN 106273535 A CN106273535 A CN 106273535A
Authority
CN
China
Prior art keywords
composite structure
product
pressure
semiclosed
mould
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.)
Pending
Application number
CN201510305143.8A
Other languages
Chinese (zh)
Inventor
张立旻
李全
郝钢凝
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.)
Harbin Aircraft Industry Group Co Ltd
Original Assignee
Harbin Aircraft Industry 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 Harbin Aircraft Industry Group Co Ltd filed Critical Harbin Aircraft Industry Group Co Ltd
Priority to CN201510305143.8A priority Critical patent/CN106273535A/en
Publication of CN106273535A publication Critical patent/CN106273535A/en
Pending legal-status Critical Current

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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
    • B29C70/34—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
    • B29C70/30—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
    • B29C70/345—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 matched moulds
    • 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
    • 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
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs

Abstract

The invention discloses the forming method of a kind of semiclosed composite structure.In order to solve the existing moulding process difficult forming problem to semi-enclosed composite structure, the present invention is used in combination by mould pressing technology and vacuum bag technique, realize the manufacture of semiclosed composite structure, efficiently solve the manufacturing issue of certain type machine cobasis plate antenna house, both control the construction weight of product, meet again the use functional requirement of product.

Description

A kind of forming method of semiclosed composite structure
Technical field
The invention belongs to technical field of composite material molding, relate to the forming method of a kind of semiclosed composite structure.
Background technology
Existing aviation composite manufacturing process technology has tended to ripe, such as vacuum bag technique, mould pressing technology, winding Technique etc., can extensively realize the structural member manufacture that aircaft configuration profile is mild.Relatively big, the shape for portion profile curvature For complicated structural member, can use such as special warfare manufactures such as TRM.But there are particular/special requirement or shape for some Special structural member, for the most semi-enclosed composite structure, these composite material manufacturing technologies existing are the most very Difficult realization.
Summary of the invention
The purpose of the present invention: the purpose of invention the method is that, solves existing moulding process to semi-enclosed multiple The difficult forming problem of condensation material structure, proposes the forming method of a kind of semiclosed composite structure.
Technical scheme: the forming method of a kind of semiclosed composite structure, it is characterised in that include with Lower step:
Step 1, for ease of formed product and the demoulding, outside mould is designed as two formers, enters two formers By the method suppressed, matched moulds after row process, guarantees that mold alignment is seamless；
Step 2, according to product design document require carry out laying successively at dies cavity, opening part is operating walk way；
Being compacted by laminated material with the wedge shape tire consistent with die top shape after step 3, laying, wedge shape tire material is Timber, outside parcel white muslin；
Step 4, taking-up wedge type part, spread bag vacuum at dies cavity, and pressure is-0.1MPa；
After step 5, evacuation, the pressure bag consistent with shape of product being put into mould and adds malleation, pressure is 0.1 MPa；
Step 6, enter hot pressing pipe heating cure, first with the ramp of 0.5 DEG C～1 DEG C per minute to 80 DEG C, When 80 DEG C, it is incubated 60 minutes；Again with the ramp of 0.5 DEG C～1 DEG C per minute to 125 DEG C ± 5 DEG C time, insulation 90 minutes；
Step 7, it is naturally cooling to room temperature, can the demoulding after unloading vacuum bag pressure.
Advantages of the present invention: the present invention is used in combination by mould pressing technology and vacuum bag technique, it is achieved semiclosed The manufacture of composite structure, efficiently solves the manufacturing issue of certain type machine cobasis plate antenna house, had both controlled product Construction weight, meet again the use functional requirement of product.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of finished product；
Fig. 2 is mould matched moulds schematic cross-section；
Fig. 3 is wedge placenta schematic diagram.
Wherein, 1-honeycomb sandwich construction；2-laminar structure；3-mould 1；4-mould 2；5-wedge tire 1；6-wedge tire 2.
Detailed description of the invention: below in conjunction with the accompanying drawings, cobasis plate antenna house process for making on the left of selection, to this Invention is described in further detail:
1) matched moulds after two formers to left side cobasis plate antenna house carry out surface process, suppresses test and guarantees to close After mould seamless；
2) require to carry out laying at dies cavity successively according to left side cobasis plate antenna house pattern laying figure；
3) during cobasis plate antenna house two ends laying, for ease of observing laying situation, holding plane inside two ends Mirror, and with light-illuminating, it is ensured that product laying is accurate, due in irregular shape, beats on prepreg Clip；
4) respectively two ends laminated material is compacted with wedge tire 1 and wedge tire 2 after laying；
5) taking out wedge tire 1 and wedge tire 2, spread bag vacuum at dies cavity, pressure is-0.1MPa；
6) after evacuation, the pressure bag consistent with shape of product being put into mould and adds malleation, pressure is 0.1 MPa；
7) hot pressing pipe heating cure is entered, first with the ramp of 0.5 DEG C～1 DEG C per minute to 80 DEG C, at 80 DEG C Time, it is incubated 60 minutes；Again with the ramp of 0.5 DEG C～1 DEG C per minute to 125 DEG C ± 5 DEG C time, It is incubated 90 minutes；
8) it is naturally cooling to room temperature, can the demoulding after unloading vacuum bag pressure.

Claims (1)

1. the forming method of a semiclosed composite structure, it is characterised in that comprise the following steps:
Step 1, for ease of formed product and the demoulding, outside mould is designed as two formers, enters two formers By the method suppressed, matched moulds after row process, guarantees that mold alignment is seamless；
Step 2, according to product design document require carry out laying successively at dies cavity, opening part is operating walk way；
Being compacted by laminated material with the wedge shape tire consistent with die top shape after step 3, laying, wedge shape tire material is Timber, outside parcel white muslin；
Step 4, taking-up wedge type part, spread bag vacuum at dies cavity, and pressure is-0.1MPa；
After step 5, evacuation, the pressure bag consistent with shape of product being put into mould and adds malleation, pressure is 0.1 MPa；
Step 6, enter hot pressing pipe heating cure, first with the ramp of 0.5 DEG C～1 DEG C per minute to 80 DEG C, When 80 DEG C, it is incubated 60 minutes；Again with the ramp of 0.5 DEG C～1 DEG C per minute to 125 DEG C ± 5 DEG C time, insulation 90 minutes；
Step 7, it is naturally cooling to room temperature, can the demoulding after unloading vacuum bag pressure.
CN201510305143.8A 2015-06-05 2015-06-05 A kind of forming method of semiclosed composite structure Pending CN106273535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510305143.8A CN106273535A (en) 2015-06-05 2015-06-05 A kind of forming method of semiclosed composite structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510305143.8A CN106273535A (en) 2015-06-05 2015-06-05 A kind of forming method of semiclosed composite structure

Publications (1)

Publication Number Publication Date
CN106273535A true CN106273535A (en) 2017-01-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510305143.8A Pending CN106273535A (en) 2015-06-05 2015-06-05 A kind of forming method of semiclosed composite structure

Country Status (1)

Country Link
CN (1) CN106273535A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107584780A (en) * 2017-08-31 2018-01-16 浙江众泰汽车制造有限公司 A kind of forming method of the semiclosed part of fibre reinforced composites
CN113021944A (en) * 2021-03-10 2021-06-25 广州雷迅创新科技股份有限公司 Forming method and die for wing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2664891Y (en) * 2003-11-26 2004-12-22 山河森实业股份有限公司 Hollow open type or half-enclosed rod tube or cover piece
CN102905866A (en) * 2010-03-03 2013-01-30 西门子公司 Method and mould for moulding a wind turbine blade
CN203267229U (en) * 2013-06-03 2013-11-06 泰山体育产业集团有限公司 Forming device of tubular product made from fiber reinforced resin composite material
CN203637201U (en) * 2013-10-25 2014-06-11 中国兵器工业集团第五三研究所 Mold for forming composite material double-wall container by using vacuum assistant RTM (Resin Transfer Molding) process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2664891Y (en) * 2003-11-26 2004-12-22 山河森实业股份有限公司 Hollow open type or half-enclosed rod tube or cover piece
CN102905866A (en) * 2010-03-03 2013-01-30 西门子公司 Method and mould for moulding a wind turbine blade
CN203267229U (en) * 2013-06-03 2013-11-06 泰山体育产业集团有限公司 Forming device of tubular product made from fiber reinforced resin composite material
CN203637201U (en) * 2013-10-25 2014-06-11 中国兵器工业集团第五三研究所 Mold for forming composite material double-wall container by using vacuum assistant RTM (Resin Transfer Molding) process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107584780A (en) * 2017-08-31 2018-01-16 浙江众泰汽车制造有限公司 A kind of forming method of the semiclosed part of fibre reinforced composites
CN107584780B (en) * 2017-08-31 2020-06-16 浙江众泰汽车制造有限公司 Forming method of fiber reinforced composite material semi-closed piece
CN113021944A (en) * 2021-03-10 2021-06-25 广州雷迅创新科技股份有限公司 Forming method and die for wing

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Application publication date: 20170104