CN107399092B - A kind of preparation facilities and preparation method thereof of composite material I-shaped beam - Google Patents
A kind of preparation facilities and preparation method thereof of composite material I-shaped beam Download PDFInfo
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- CN107399092B CN107399092B CN201710783786.2A CN201710783786A CN107399092B CN 107399092 B CN107399092 B CN 107399092B CN 201710783786 A CN201710783786 A CN 201710783786A CN 107399092 B CN107399092 B CN 107399092B
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- Prior art keywords
- metal
- composite
- plys
- expanded rubber
- composite plys
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of preparation facilities and preparation method thereof of composite material I-shaped beam, belong to composite material parts manufacturing technology field.A kind of preparation facilities of composite material I-shaped beam, the preparation facilities include metal positive, expanded rubber formpiston, metal baffle and metal d ie；The metal positive is consistent with I-beam inner mold, thereon paving composite plys, is used to form I-beam blank；The expanded rubber formpiston is placed in inside the composite plys after compacting, is used to support composite plys, and provide pressure at the time of molding；The metal baffle, metal d ie are placed in the outside of composite plys, for the shape positioning to composite plys.The invention has the following advantages that the shape of I-beam is precisely controlled；No longer need the autoclave using high energy consumption；The vacuum bag occurred when avoiding using solidification of hot-press tank ruptures, discovering and ruling out upper and lower mould molds the abnormal conditions that the solidification of hot-press tank such as bad can not be found in time in time, and then ensure that the quality of I-beam, reduces manufacturing cost.
Description
Technical field
The present invention relates to a kind of preparation facilities and preparation method thereof of composite material I-shaped beam, belong to composite material parts system
Make technical field.
Background technique
Composite material I-shaped beam generally using posting on mold upper berth, makes hermetic bag, vacuumizes, adds in autoclave
Temperature, cure under pressure molding.Autoclave is the equipment of a high energy consumption, using solidification of hot-press tank part first is that will lead to cost of parts
It is high；Second is that solidifying the case where part can not observe part in autoclave, it cannot be directed in part solidification process and occur in time
Abnormal conditions adjust.
Summary of the invention
The object of the present invention is to provide a kind of preparation facilities of composite material I-shaped beam for preparing low cost, high quality.
To achieve the above object, the present invention adopts the following technical scheme: a kind of preparation facilities of composite material I-shaped beam, institute
Stating preparation facilities includes metal positive, expanded rubber formpiston, metal baffle and metal d ie；In the metal positive and I-beam
Type is consistent, thereon paving composite plys, is used to form I-beam blank；The expanded rubber formpiston is placed in answering after being compacted
Inside condensation material laying, composite plys are used to support, and provide pressure at the time of molding；The metal baffle, metal d ie
It is placed in the outside of composite plys, for the shape positioning to composite plys.
Preferably, the metal d ie includes upper die and lower die, is respectively placed in the upper and lower of composite plys.
It is a further object to provide a kind of application devices produced above to use hot pressing bed forming composite work
The method of word beam.
The following steps are included:
1) metal positive, metal d ie, expanded rubber formpiston, metal baffle are manufactured；
2) paving is completed by part layering requirement in metal positive；
3) with sealing material, gas permeable material, isolated material and vacuum bag assembling sealing；
4) 30min or more is vacuumized；
5) laying is removed from metal positive and is put on expanded rubber formpiston；
6) laying and expanded rubber formpiston are put into the lower die of metal d ie together, are positioned；
7) it is put into the metal baffle of two sides；
8) it closes metal d ie upper mold and completes assembling；
9) metal d ie being completed is placed in hot pressing bed heating plate, according to the technological parameter of laminated material require into
Row heating cure after completing heating cure, is cooled to 60 DEG C or less release demouldings.
Preferably, the cure parameter in step 9) are as follows: adjunction is pressed to heating platform and is in contact with mold, then with 1
DEG C/rate of min-3 DEG C/min is warming up to 120 DEG C~135 DEG C, 40min~60min is kept the temperature, molding is forced into, then proceedes to rise
Temperature is to 175 DEG C~185 DEG C, heat-insulation pressure keeping 2h~2.5h, finally under dwell condition, to be not more than the rate of temperature fall of 2 DEG C/min
Cooling.
The invention has the following advantages that being solidified using yin-yang molding, hot pressing bed temperature-pressure, yin-yang molding form makes work
The shape of word beam is precisely controlled；By the mechanical pressure of hot pressing bed and the expansive force of internal expansion rubber formpiston to I-shaped
Beam applies briquetting pressure, it is no longer necessary to use the autoclave of high energy consumption；Adding I-beam using hot pressing bed curing process simultaneously
It can be bad to avoid using the vacuum bag occurred when solidification of hot-press tank to rupture, discovering and ruling out upper and lower mould molding in time during temperature
The abnormal conditions that equal solidification of hot-press tank can not be found in time, and then ensure that the quality of I-beam, reduce manufacturing cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of metal positive and laying in the embodiment of the present invention；
Fig. 2 is laying in the embodiment of the present invention, metal d ie, metal baffle, expanded rubber formpiston structural schematic diagram.
Specific embodiment
1-2 is further described the present invention with reference to the accompanying drawing: I-beam, and 1.5 meters long, wide 600mm opens a grade size
15mm~40mm, thickness 3mm~4mm, material are carbon fiber prepreg HF10A/NY9200GA.Specific process step are as follows: according to
The size and shape of I-beam make metal positive, metal d ie, expanded rubber formpiston；The paving prepreg in metal positive 1
Laying 2, every 6~8 layers of pre-compacted are primary.Pre-compacted method are as follows: in prepreg overlay surface successively laying: release materials, isolation
Vacuum bag film is pasted onto metal positive 1 with sealing joint strip and forms sealing system by material and gas permeable material and vacuum bag.Room temperature
Lower evacuated pressure should reach 0.095 MPa or more, keep 30 min or more of vacuum pressure.After completing paving, laying 2 is shifted
It is placed in 3 lower die of metal d ie together onto expanded rubber formpiston 5, and by the two, sets position, be put into the metal baffle of two sides
4, it closes the upper mold of metal d ie 3 and is placed on heating cure on hot pressing bed.Cure parameter are as follows: adjunction press to heating platform with
Mold is in contact, and is then warming up to 120 DEG C~135 DEG C heat preservation 40min~60min with the rate of 1 DEG C/min-3 DEG C/min, pressurization
It to molding, then proceedes to be warming up to 175 DEG C~185 DEG C, heat-insulation pressure keeping 2h~2.5h, finally under dwell condition, to be not more than 2
DEG C/cooling of the rate of temperature fall of min, pressure maintaining is cooled to 60 DEG C hereinafter, release demoulds.
Metal positive, metal d ie, expanded rubber formpiston, metal baffle in the present invention need to according to the size of I-beam and
Shape requirement is designed manufacture, is not restricted to shown in the embodiment of the present invention and attached drawing, those of ordinary skill in the art
Any amplification and variation done on the basis of the present invention are within the scope of the invention.
Claims (2)
1. a kind of method for preparing composite material I-shaped beam, preparation facilities includes metal positive, expanded rubber anode membrane, metal gear
Plate and metal d ie；The metal positive is consistent with I-beam inner mold, thereon paving composite plys, is used to form I-beam
Blank；The expanded rubber formpiston is placed in inside the composite plys after compacting, is used to support composite plys, and at
Pressure is provided when type；The metal baffle, metal d ie are placed in the outside of composite plys, for composite plys
Shape positioning；The metal d ie includes upper die and lower die, is respectively placed in the upper and lower of composite plys, it is characterised in that: packet
Include following steps:
1) metal positive, metal d ie, expanded rubber formpiston, metal baffle are manufactured；
2) paving is completed by part layering requirement in metal positive；
3) with sealing material, gas permeable material, isolated material and vacuum bag assembling sealing；
4) 30min or more is vacuumized；
5) laying is removed from metal positive and is put on expanded rubber formpiston；
6) laying and expanded rubber formpiston are put into the lower die of metal d ie together, are positioned；
7) it is put into the metal baffle of two sides；
8) it closes metal d ie upper mold and completes assembling；
9) metal d ie being completed is placed in hot pressing bed heating plate, requires to be added according to the technological parameter of laminated material
Temperature solidification after completing heating cure, is cooled to 60oC or less release demoulding.
2. the method according to claim 1 for preparing composite material I-shaped beam, it is characterised in that: the solidification in step 9)
Parameter are as follows: adjunction is pressed to heating platform and is in contact with mold, is then warming up to 120oC with the rate of 1oC/min-3oC/min
~ 135oC keeps the temperature 40min ~ 60min, is forced into molding, then proceedes to be heated up to 175oC ~ 185oC, heat-insulation pressure keeping 2h ~ 2.5h,
Finally under dwell condition, cooled down with the rate of temperature fall no more than 2oC/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710783786.2A CN107399092B (en) | 2017-09-04 | 2017-09-04 | A kind of preparation facilities and preparation method thereof of composite material I-shaped beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710783786.2A CN107399092B (en) | 2017-09-04 | 2017-09-04 | A kind of preparation facilities and preparation method thereof of composite material I-shaped beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107399092A CN107399092A (en) | 2017-11-28 |
| CN107399092B true CN107399092B (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710783786.2A Active CN107399092B (en) | 2017-09-04 | 2017-09-04 | A kind of preparation facilities and preparation method thereof of composite material I-shaped beam |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284620A (en) * | 2017-11-30 | 2018-07-17 | 江西洪都航空工业集团有限责任公司 | A kind of composite material multi-wall type co-curing integral panel shaping dies |
| CN109955498A (en) * | 2017-12-25 | 2019-07-02 | 深圳光启尖端技术有限责任公司 | The manufacturing method of edge strip after a kind of |
| CN108995247A (en) * | 2018-10-18 | 2018-12-14 | 郑州郑飞木业有限责任公司 | A kind of manufacture craft of lid plate parts |
| CN109927316A (en) * | 2019-04-01 | 2019-06-25 | 苏州华特时代碳纤维有限公司 | A kind of batch forming method of composite material I-shaped beam |
| CN110481055A (en) * | 2019-08-20 | 2019-11-22 | 四川明日宇航工业有限责任公司 | A kind of low cost manufacturing composite material mould process |
| CN110815874B (en) * | 2019-11-21 | 2021-06-25 | 航天特种材料及工艺技术研究所 | Forming die and method for I-shaped composite material component with closing-up structure |
| CN111086239B (en) * | 2019-12-04 | 2022-05-27 | 中车青岛四方机车车辆股份有限公司 | Forming method and forming die for composite material I-beam |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967996A (en) * | 1973-05-14 | 1976-07-06 | Nikolai Ilich Kamov | Method of manufacture of hollow pieces |
| CN103434141A (en) * | 2013-08-15 | 2013-12-11 | 北京卫星制造厂 | Forming method for box-shaped carbon fiber composite reinforced structure |
| CN103522555A (en) * | 2013-10-25 | 2014-01-22 | 重庆大学 | Integrated forming manufacturing method of I-shaped beam made from composite material |
-
2017
- 2017-09-04 CN CN201710783786.2A patent/CN107399092B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967996A (en) * | 1973-05-14 | 1976-07-06 | Nikolai Ilich Kamov | Method of manufacture of hollow pieces |
| CN103434141A (en) * | 2013-08-15 | 2013-12-11 | 北京卫星制造厂 | Forming method for box-shaped carbon fiber composite reinforced structure |
| CN103522555A (en) * | 2013-10-25 | 2014-01-22 | 重庆大学 | Integrated forming manufacturing method of I-shaped beam made from composite material |
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| Publication number | Publication date |
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| CN107399092A (en) | 2017-11-28 |
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