CN108274774A - The molding preparation process of the co-curing of metal and composite flywheel - Google Patents
The molding preparation process of the co-curing of metal and composite flywheel Download PDFInfo
- Publication number
- CN108274774A CN108274774A CN201810047313.0A CN201810047313A CN108274774A CN 108274774 A CN108274774 A CN 108274774A CN 201810047313 A CN201810047313 A CN 201810047313A CN 108274774 A CN108274774 A CN 108274774A
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- Prior art keywords
- flywheel
- metal
- spoke
- curing
- laying
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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
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3097—Cosmonautical vehicles; Rockets
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
A kind of molding preparation process of co-curing of metal and composite flywheel, by the way that metal and composite material co-curing flywheel are divided into five regions and carries out unidirectional pre-immersion material laying according to respective ply sequence respectively in molding die corresponding region and wraps up annular precast body, are fastened with metal rim after the completion of laying and cured molding obtains metal and composite flywheel.The present invention disclosure satisfy that requirement of the flywheel to rotary inertia error, dynamic balancing quality and high speed rotation stability.
Description
Technical field
The present invention relates to a kind of technology of composite material process field, specifically a kind of metal and composite flywheel
The molding preparation process of co-curing.
Background technology
In recent years, the external integrated aspect that flywheel energy storage and attitude control function are concentrated mainly on to the research of satellite flywheel, at
Work(has developed a variety of energy storage, attitude control integrated flywheel；Has the characteristics that larger tensile strength using composite material, by CFRP materials
Wheel rim is made by winding method in material, substantially increases the limit speed of wheel body so that the energy storage density of flywheel greatly improves；Together
When, due to realizing energy storage, attitude control integration, save a large amount of celestial body spaces and quality.
Composite material in existing composite material and the flywheel of metallic combination structure plays loss of weight, outside as spoke
Metal rim is that machine fills changeable type.But due to using screw to connect between stainless steel wheel rim and carbon fibre composite spoke,
Connection reliability is poor, and dynamic balance is insufficient, the larger deviation of dynamic balancing appearance especially after high/low temperature cyclic test.
It is multiple using metal-in the improved structure of existing aluminium alloy wheel hub+carbon fibre composite spoke+stainless steel wheel rim
Condensation material full-enclosed configuration.Although its wheel rim uses the Hybrid connections pattern of hot close-fitting-splicing with spoke, without any connection
Screw.But metal-adhesive bonding of composites is second-rate, and macroscopic structure and surface quality be not high, after thermocycling
A degree of drift has occurred in dynamic balancing.
Invention content
The present invention is directed to deficiencies of the prior art, propose the co-curing of metal and composite flywheel a kind of at
The preparation process of type disclosure satisfy that requirement of the flywheel to rotary inertia error, dynamic balancing quality and high speed rotation stability.
The present invention is achieved by the following technical solutions：
The present invention by metal and composite material co-curing flywheel by being divided into five regions and in molding die respective area
Domain according to respective ply sequence unidirectional pre-immersion material laying and wrap up annular precast body respectively, after the completion of laying and metal wheel
Edge fastens and cured molding obtains metal and composite flywheel.
The molding die refers to metal-composite material co-curing flywheel molding die scheme, specifically soft using silica gel
The structure type of mould auxiliary+metal assembled mould, metal die therein include：As the epivalve molding die of former, conduct
The hypovalve molding die of formpiston.
The molding die is preferably made of No. 45 steel.
Five regions refer to：Skin areas under flywheel spoke foam regions, flywheel hub region, flywheel spoke,
Skin areas and flywheel rim region on flywheel spoke.
Skin areas and flywheel rim region under the flywheel spoke foam regions, flywheel hub region, flywheel spoke
Unidirectional pre-immersion material laying is carried out using corresponding ply sequence, carries out intersecting laying between different zones to ensure to connect
Connect rigidity and intensity.
On the flywheel spoke skin areas using precast body unidirectional pre-immersion material wrap up, pawnshop to close to foam when
It waits, close to the layer use ± 45 ° laying of foam, then inserts foam in flywheel spoke foam regions, then again to the arm of fly-wheel
Skin areas carries out being coated with for unidirectional pre-immersion material on item, and laying extends on flywheel rim region.
The silicon rubber mould according to the digital-to-analogue of design flywheel requires that R10301 silicon rubber is selected to be prepared.
The silicon rubber mould, is prepared in the following manner：After silica gel and curing agent component are mixed first, room temperature
Lower solidification is for 24 hours；Silicon rubber mold base is put into baking oven after the completion of solidification and is heat-treated, heat treatment temperature is 150 DEG C, heat preservation
6h.It is required that the shore hardness for the silicon rubber mould that system is completed is 30~40, linear expansion coefficient is 2.5~2.8 × 10-4/K。
The wheel hub precast body, is prepared in the following manner：Previously prepared wheel hub annular precast body, laying are thick
20mm is spent, is coated after the completion of paved and inhales glue and pre-compacted, then precast body surface is cleared up, deburring, and measure thickness,
It is repaired to obtain in the region larger to local thickness deviation.
The curing molding refers to：Apply 0.2MPa pressure by pressurized tank, temperature is maintained at 160 DEG C, and heat preservation 4 is small
When.
The composite material is M40JB/602 hot melt prepregs.
The metal and composite flywheel that the present invention relates to a kind of to be prepared by the above method are metal and composite wood
Material is integrally formed for whole co-curing, can avoid the dynamic balancing drift of flywheel, and forming surface precision is high, the dynamic injustice of leading indicator flywheel
Weigh quality ＜ 1gcm2；0.078 ± 0.0015kgm of wheeling thereof inertia2；Rotating speed does not quiver within the scope of ± 1500r/min
It shakes and fails.
Technique effect
Compared with prior art, the present invention uses assembling die design scheme, and is pressurizeed using inner cavity flexible-mould assisted, to
The formed precision for improving flywheel composite material relationship type face, avoids subsequently to the machining steps of flywheel composite portions；Separately
Outer flywheel is integrally formed using whole co-curing, is pressurizeed using inner cavity flexible-mould assisted, make in the state of high temperature composite material with
Metal is integrally formed, it is ensured that the performance of bonding plane can avoid the dynamic balancing drift of flywheel.The present invention can make composite wood simultaneously
Expect completion of cure, ensure non-volatile object under vacuum, meets it and adapt to space operating environment requirements.
Description of the drawings
Fig. 1 is metal of the present invention-composite material co-curing flywheel structure schematic diagram；
In figure：101 spoke made from composite material, 102 metal wheel hubs, 103 metal rims；
Fig. 2A and Fig. 2 B are composite plys schematic diagram of the present invention；
In figure：Skin areas, 204 fly under 201 flywheel spoke foam regions, 202 flywheel hub regions, 203 flywheel spokes
Skin areas, 205 flywheel rim regions on wheel spoke；
Fig. 3 A are spoke ply sequence, and Fig. 3 B are covering and spoke contact position ply sequence, and Fig. 3 C are that spoke connects with wheel rim
Ply sequence schematic diagram at contacting surface.
Specific implementation mode
The present embodiment includes the following steps：
Step 1) raw material use M40JB/602 hot melt prepregs, thickness in monolayer 0.1mm.It is carried out down by Lay up design
Expect typesetting, typesetting desired size is accurate, ensures that prepreg has higher utilization rate.
Step 2) silicon rubber selects R10301 silicon rubber.In silicon rubber mantle preparation process, first by silicon rubber A, B component
After mixing, cure at room temperature for 24 hours；Silicon rubber mold base is put into baking oven after the completion of solidification and is heat-treated, heat treatment temperature is
150 DEG C, keep the temperature 6h.It is required that the shore hardness for the silicon rubber mould that system is completed is 30~40, linear expansion coefficient is 2.5~2.8 × 10-
4/K。
The previously prepared wheel hub annular precast body of step 3), overlay thickness 20mm, coats after the completion of paved and inhales glue and precompressed
It is real.Then, precast body surface is cleared up, deburring, and measures thickness, the region larger to local thickness deviation is repaiied
It mends, after the completion places precast body for use.
Step 4) is as shown in Fig. 3 A~Fig. 3 C, first to flywheel spoke foam regions 201, flywheel hub on molding formpiston
Skin areas 203, flywheel rim region 205 carry out unidirectional pre-immersion material paving according to respective ply sequence under region 202, flywheel spoke
Layer, it carries out intersecting laying between different zones to ensure that coupling stiffness and intensity, hub portion need precast body is single
It is wrapped up to prepreg；When pawnshop is to close to foam, close to the layer use ± 45 ° laying of foam, foam is then inserted into mould
In the flywheel spoke foam regions 201 of tool.Skin areas on flywheel spoke 204, progress unidirectional pre-immersion material are coated with later, spread
Layer extends on flywheel rim region 205.
The metal rim that machining is completed is buckled on hypovalve molding die by step 5), ensures metal rim and wheel rim inside
Composite material contact surface have certain pressure so that metal and composite material come into full contact with, bubble is discharged.Then, the moon is buckled
Mould completes mold tooling.
Co-curing flywheel is integrally placed in pressurized tank by step 6), applies 0.2MPa pressure, and temperature is maintained at 160 DEG C, protects
Temperature 4 hours.
After step 7) product stripping, product edge overlap of polishing measures product basic size, send flaw detection.
Experiment parameter, technical indicator, the functional effect for the product that the present embodiment is prepared by the above method be：Flywheel
Unbalance dynamic quality ＜ 1gcm2；0.078 ± 0.0015kgm of wheeling thereof inertia2；Rotating speed within the scope of ± 1500r/min not
Flutter and failure occurs.The first natural frequency of wheel body is not less than 180Hz.Metal and composite material be whole co-curing one at
Type, can avoid the dynamic balancing drift of flywheel, and forming surface precision is high.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (10)
1. a kind of molding preparation process of the co-curing of metal and composite flywheel, which is characterized in that by by metal and again
Condensation material co-curing flywheel is divided into five regions and in molding die corresponding region respectively according to corresponding ply sequence
It carries out unidirectional pre-immersion material laying and wraps up annular precast body, fastened with metal rim after the completion of laying and cured molding obtains
Metal and composite flywheel；
Five regions refer to：Skin areas, flywheel under flywheel spoke foam regions, flywheel hub region, flywheel spoke
Skin areas and flywheel rim region on spoke.
2. according to the method described in claim 1, it is characterized in that, the flywheel spoke foam regions, flywheel hub region, fly
Skin areas and flywheel rim region carry out unidirectional pre-immersion material laying using corresponding ply sequence under wheel spoke, not same district
It carries out intersecting laying between domain to ensure coupling stiffness and intensity, specifically includes：
1. spoke ply sequence：
2. covering and spoke contact position ply sequence：
3. spoke and ply sequence at wheel rim contact surface：
3. according to the method described in claim 1, it is characterized in that, on the flywheel spoke skin areas using precast body it is unidirectional
Prepreg wraps up, and when pawnshop is to close to foam, close to the layer use ± 45 ° laying of foam, foam is then inserted flywheel
In spoke foam regions, unidirectional pre-immersion material then is carried out to skin areas on flywheel spoke again and is coated with, laying extends to flywheel
In rim area.
4. according to the method described in claim 1, it is characterized in that, the molding die refers to metal-composite material co-curing
Flywheel molding die scheme, the specific structure type for using silica gel flexible-mould assisted+metal assembled mould, metal die packet therein
Contain：Epivalve molding die as former, the hypovalve molding die as formpiston.
5. method according to claim 1 or 4, characterized in that the molding die is made of No. 45 steel.
6. according to the method described in claim 1, it is characterized in that, the silicon rubber mould, according to design flywheel digital-to-analogue select
R10301 silicon rubber is prepared.
7. according to the method described in claim 1, it is characterized in that, the wheel hub precast body is prepared in the following manner：
Previously prepared wheel hub annular precast body, overlay thickness 20mm, coats after the completion of paved and inhales glue and pre-compacted, then to precast body
Surface cleared up, deburring, and measures thickness, and the region larger to local thickness deviation is repaired to obtain.
8. according to the method described in claim 1, it is characterized in that, the curing molding refers to：Applied by pressurized tank
0.2MPa pressure, temperature are maintained at 160 DEG C, keep the temperature 4 hours.
9. according to the method described in claim 1, it is characterized in that, the composite material be M40JB/602 hot melt prepregs.
10. a kind of metal and composite flywheel being prepared by any of the above-described claim the method, feature exist
In, be metal with composite material it is that whole co-curing is integrally formed, flywheel unbalance dynamic quality<1gcm2；Wheeling thereof inertia
0.078±0.0015kg·m2；Within the scope of ± 1500r/min flutter and failure do not occur for rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047313.0A CN108274774B (en) | 2018-01-18 | 2018-01-18 | Preparation process for co-curing molding of metal and composite material flywheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047313.0A CN108274774B (en) | 2018-01-18 | 2018-01-18 | Preparation process for co-curing molding of metal and composite material flywheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108274774A true CN108274774A (en) | 2018-07-13 |
| CN108274774B CN108274774B (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810047313.0A Active CN108274774B (en) | 2018-01-18 | 2018-01-18 | Preparation process for co-curing molding of metal and composite material flywheel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422344A (en) * | 2019-08-12 | 2019-11-08 | 航天材料及工艺研究所 | A kind of satellite compound flywheel of large rotating inertia lightweight and preparation method thereof |
| CN111114735A (en) * | 2019-12-26 | 2020-05-08 | 中国科学院光电研究院 | Lightweight flywheel and method for manufacturing same |
| CN114571195A (en) * | 2021-12-29 | 2022-06-03 | 上海航天控制技术研究所 | Co-curing structure flywheel wheel body and manufacturing and processing method thereof |
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| CN103867639A (en) * | 2012-12-11 | 2014-06-18 | 北京奇峰聚能科技有限公司 | High-energy-storage flywheel rotor and manufacturing method thereof |
| CN104608939A (en) * | 2014-10-17 | 2015-05-13 | 上海复合材料科技有限公司 | Light-weighted composite momentum flywheel for satellite and manufacture method thereof |
| CN105666892A (en) * | 2016-01-25 | 2016-06-15 | 浙江大学 | Method for manufacturing automobile body through carbon fiber composite |
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2018
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867639A (en) * | 2012-12-11 | 2014-06-18 | 北京奇峰聚能科技有限公司 | High-energy-storage flywheel rotor and manufacturing method thereof |
| CN104608939A (en) * | 2014-10-17 | 2015-05-13 | 上海复合材料科技有限公司 | Light-weighted composite momentum flywheel for satellite and manufacture method thereof |
| CN105666892A (en) * | 2016-01-25 | 2016-06-15 | 浙江大学 | Method for manufacturing automobile body through carbon fiber composite |
Non-Patent Citations (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422344A (en) * | 2019-08-12 | 2019-11-08 | 航天材料及工艺研究所 | A kind of satellite compound flywheel of large rotating inertia lightweight and preparation method thereof |
| CN110422344B (en) * | 2019-08-12 | 2021-06-11 | 航天材料及工艺研究所 | Large-rotational-inertia light composite flywheel for satellite and preparation method thereof |
| CN111114735A (en) * | 2019-12-26 | 2020-05-08 | 中国科学院光电研究院 | Lightweight flywheel and method for manufacturing same |
| CN111114735B (en) * | 2019-12-26 | 2022-01-21 | 中国科学院光电研究院 | Lightweight flywheel and method for manufacturing same |
| CN114571195A (en) * | 2021-12-29 | 2022-06-03 | 上海航天控制技术研究所 | Co-curing structure flywheel wheel body and manufacturing and processing method thereof |
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| Publication number | Publication date |
|---|---|
| CN108274774B (en) | 2021-01-08 |
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