CN110481058A - Inside it is embedded in the winding intracorporal lightweight cable hood forming method of shell - Google Patents
Inside it is embedded in the winding intracorporal lightweight cable hood forming method of shell Download PDFInfo
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- CN110481058A CN110481058A CN201910892417.6A CN201910892417A CN110481058A CN 110481058 A CN110481058 A CN 110481058A CN 201910892417 A CN201910892417 A CN 201910892417A CN 110481058 A CN110481058 A CN 110481058A
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- Prior art keywords
- cable hood
- layer
- laying
- fiber prepreg
- cable
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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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
- B29C70/228—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being stacked in parallel layers with fibres of adjacent layers crossing at substantial angles
-
- 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
- B29C70/68—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
- B29C70/70—Completely encapsulating inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/20—Inserts
-
- 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
Abstract
The invention discloses the winding intracorporal lightweight cable hood forming method of shell is embedded in one kind, machine adds the number of plies of laying and upper laying under light foam material-calculating, according to the sectional dimension of cable hood and length dimension cut fiber prepreg material-alternately sequentially carry out according to fiber prepreg material machine direction flowering structure layer laying spread to the required number of plies-light foam layer is adhered on the corresponding position of cable hood both ends-alternately sequentially carry out upper structure sheaf laying according to fiber prepreg material machine direction, paving to the required number of plies forms cable hood prefabricated component-solidification.Compared with traditional aluminium alloy cable cover, the present invention greatly reduces the passive quality of cable hood under the premise of ensure that cable hood structural strength meets requirement using the structure of fiber prepreg material laying and foam sandwich；Easy to operate, flexible using the method for fiber prepreg material laying, technological feasibility with higher is practical, and product dead size forms, and reduces processing cost.
Description
Technical field
The present invention relates to solid rocket motor case field shaping techniques, and in particular to is embedded in winding shell in one kind
Lightweight cable hood forming method.
Background technique
When solid propellant rocket works, electric interfaces are provided for the connection of component each in bullet by cable and information passes
Defeated channel, since missile flight speed is fast, working environment is harsh, for guarantee cable can reliably working, cable hood need to be passed through
It is protected.Traditional fiber winding motor case generallys use aluminum alloy materials processing cable cover, then by pre-
The cable hood support being embedded on shell is mounted on surface of shell, and this method has that the processing is simple, operates convenient advantage, but still
It is big so to there is passive quality, heat-insulated poor with erosion resistibility, the fixed insecure problem of cable hood.
In recent years, solid rocket motor case field shaping technique occurred that fiber winding hair will be embedded in cable hood
The intracorporal new technology of motivation shell, the technology make solid propellant rocket have more good aerodynamic configuration, and cable hood is fixed
Reliably, and can be provided simultaneously for fiber winding shell and cable by the outer heat shield on fiber winding shell surface prevent it is heat-insulated and
Antiscour function.The technical solution generallys use carbon fibre composite or glass fiber compound material production cable hood, although
It is lower than traditional aluminum alloy materials density, but still there is certain quality, it is contemplated that it is fiery to solid is promoted to reduce passive quality
The importance of arrow engine carrying capacity and range, therefore, it is necessary to further decrease the passive quality of cable hood.
Summary of the invention
The purpose of the present invention is to the deficiency of above-mentioned technology, provide a kind of passiveness it is low-quality in be embedded in winding shell
Interior lightweight cable hood forming method.
To achieve the above object, interior be embedded in designed by the present invention winds the intracorporal lightweight cable hood forming method of shell, institute
Stating cable hood section includes structure sheaf and two sandwich of layers, wherein the structure sheaf includes that upper structure sheaf and two are arranged symmetrically
Flowering structure layer at upper structure sheaf both ends, and the inner surface of the outer surface of each flowering structure layer and upper structure sheaf end encloses
The closing chamber installed for sandwich of layers is formed, the region and upper structure sheaf inner surface between two flowering structure layers form hollow area
The cambered surface radius in domain, the inner mold face of two flowering structure layers is identical as the winding outer diameter of shell；Cable hood forming method is specific
It is as follows:
1) to light foam material carry out machine add, machine add after light foam layer transversal cross-section and sandwich of layers structure size phase
Together；
2) according to the number of plies of laying under the THICKNESS CALCULATION of the thickness of flowering structure layer and single layer fibre prepreg, according to upper structure
The number of plies of laying on the thickness of layer and the THICKNESS CALCULATION of single layer fibre prepreg, then according to the sectional dimension of cable hood and cable
Cover length dimension cuts fiber prepreg material；
3) in the paved die surface brushing release agent of cable hood, then according to 0 °, 90 ° alternatings of fiber prepreg material machine direction
Sequence carry out flowering structure layer laying, paving is to the required number of plies；
4) the light foam layer surface brushing adhesive added in machine, is then adhered to cable hood both ends for light foam layer
On corresponding position；
5) upper structure sheaf laying, paving to the required number of plies are alternately sequentially carried out according to 0 °, 90 ° of fiber prepreg material machine direction
Form cable hood prefabricated component；
6) in cable hood preform surfaces layer overlay polytetrafluoroethylene (PTFE) release cloth, the smooth corrugationless of release cloth, then again
Layer overlay airfelt, stamps vacuum bag, is pressurizeed by the way of vacuumizing, and is put into baking oven the molding that is heating and curing；Solidification system
Degree is executed according to the curing cycle of used fiber prepreg material.
Further, in the step 1), the longitudinal length of sandwich of layers is 200~300mm, and the quantity of light foam layer is
Cable hood length/machine add after light foam layer length × 2；When calculated light foam layer number contains decimal, lightweight
Foam layer number is to remove decimal to add one.
Further, in the step 2), since cable hood is handed over according to 0 ° of fiber prepreg material machine direction, 90 ° of sequence
For laying, so need to be cut according to fiber prepreg material machine direction when blanking；When cable hood length is longer, for convenient for fibre
It ties up prepreg cutting and laying operation, each layer of fiber prepreg material is divided into multistage and is cut, guarantee total length, in subsequent laying
When operation, the fiber prepreg material splicing seams in 0 ° of direction need to be staggered.
Further, in the step 4), adhesive uses epoxy resin tackifier.
Further, the paved mold of the cable hood makes according to molding surface size in cable hood and cable hood length, and electricity
The paved mold material of cable cover is metal.
Further, the sandwich of layers uses light foam material, and light foam material is PMI foam.
Further, the upper structure sheaf and flowering structure layer are made of multi-layer fiber prepreg, and fiber prepreg material is carbon
Fiber reinforced epoxy resin prepreg or glass fiber reinforced epoxy resin prepreg.
Compared with prior art, the present invention having the advantage that
1) compared with traditional aluminium alloy cable cover, the present invention uses the structure of fiber prepreg material laying and foam sandwich,
Under the premise of ensure that cable hood structural strength meets requirement, the passive quality of cable hood is greatly reduced；Using fibre
The method for tieing up prepreg overlay, easy to operate, flexible, technological feasibility with higher is practical, and product dead size
Molding, reduces processing cost；
2) method that cure under pressure molding is heating and curing using vacuum bag pressurization, baking oven, compared with the method for molding, cable
Paved mold is covered without making cavity plate, need to only process punch-pin, and mold design and the processing is simple is at low cost and large-scale without relying on
Press device.
Detailed description of the invention
Fig. 1 is cable hood schematic cross-section of the present invention.
Wherein: inner mold face 1, outer mold surface 2, sandwich of layers 3, structure sheaf 4 (wherein: flowering structure layer 4a, upper structure sheaf 4b), hollow
Region 5, closing chamber 6.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
It is inside embedded in the winding intracorporal lightweight cable hood forming method of shell, cable hood section includes that structure sheaf 4 and two are sandwich
Layer 3, wherein structure sheaf 4 includes the flowering structure layer 4a that upper structure sheaf 4b and two are arranged symmetrically in the both ends structure sheaf 4b, and every
The outer surface of a flowering structure layer 4a and the inner surface of the end upper structure sheaf 4b are enclosed the closing chamber 6 installed for sandwich of layers 3, and two
Region and upper structure sheaf 4b inner surface between a flowering structure layer 4a form hollow region 5；In addition, two flowering structure layer 4a's is interior
The cambered surface radius in type face 1 is identical as the winding outer diameter of shell, after cable hood is installed on winding shell, the external form of upper structure sheaf 4b
Face 2 and winding shell smooth transition, avoid having between cable hood and cable hood outer wrap aerial.In the present embodiment, sandwich of layers 3
For Lightened structure, using light foam material, light foam material is PMI foam；Upper structure sheaf 4b and flowering structure layer 4a by
Multi-layer fiber prepreg is constituted, and fiber prepreg material is carbon-fibre reinforced epoxy resin prepreg or glass fiber reinforced epoxy resin
Prepreg.Cable hood forming method is specific as follows:
1) the paved mold of cable hood, and the paved mold of cable hood are made according to molding surface size in cable hood and cable hood length
Material is metal；
2) to light foam material carry out machine add, machine add after light foam layer transversal cross-section and 3 structure size of sandwich of layers
Identical, the longitudinal length of sandwich of layers 3 is 200~300mm, and the quantity of light foam layer is the lightweight after cable hood length/machine adds
Froth bed length × 2；When calculated light foam layer number contains decimal, light foam layer number is to remove decimal to add
One；
3) according to the number of plies of laying under the THICKNESS CALCULATION of the thickness of flowering structure layer 4a and single layer fibre prepreg, according to upper knot
The number of plies of laying on the thickness of structure layer 4b and the THICKNESS CALCULATION of single layer fibre prepreg, then according to the sectional dimension of cable hood and
Cable hood length dimension cuts fiber prepreg material, since cable hood is according to 0 ° of fiber prepreg material machine direction, 90 ° of sequence alternate
Laying, so need to be cut according to fiber prepreg material machine direction when blanking；When cable hood length is longer, for convenient for fiber
Prepreg is cut and laying operation, each layer of fiber prepreg material are divided into multistage and are cut, and guarantees total length, in subsequent paving
When layer operation, the fiber prepreg material splicing seams in 0 ° of direction need to be staggered；
4) in the paved die surface brushing release agent of cable hood, then according to 0 °, 90 ° alternatings of fiber prepreg material machine direction
Sequence carry out flowering structure layer laying, paving is to the required number of plies；
5) the light foam layer surface brushing adhesive added in machine, is then adhered to cable hood both ends for light foam layer
On corresponding position, adhesive uses epoxy resin tackifier；
6) upper structure sheaf laying, paving to the required number of plies are alternately sequentially carried out according to 0 °, 90 ° of fiber prepreg material machine direction
Form cable hood prefabricated component；
7) in cable hood preform surfaces layer overlay polytetrafluoroethylene (PTFE) release cloth, it is desirable that the smooth corrugationless of release cloth, so
After be then covered with one layer of airfelt, stamp vacuum bag, pressurizeed by the way of vacuumizing, be put into baking oven the molding that is heating and curing；Gu
Change system is executed according to the curing cycle of used fiber prepreg material；
8) after solidifying, cable hood prefabricated component is taken out from the paved mold of cable hood, is polished surface spikes
Finishing, obtains cable hood product.
Compared with traditional aluminium alloy cable cover, the present invention is using fiber prepreg material laying and the structure of foam sandwich, In
Under the premise of ensure that cable hood structural strength meets requirement, the passive quality of cable hood is greatly reduced；Using fiber
The method of prepreg overlay, easy to operate, flexible, technological feasibility with higher is practical, and product dead size at
Type reduces processing cost；In addition, the method that cure under pressure molding is heating and curing using vacuum bag pressurization, baking oven, with molding
Method is compared, and the paved mold of cable hood need to only process punch-pin without making cavity plate, mold design and the processing is simple, at low cost, and
Without relying on large-scale press device.
Embodiment 1
It is embedded in the winding intracorporal lightweight cable hood structural parameters of shell in certain model and is shown in Table 1:
Table 1
| Serial number | Project | Structural parameters |
| 1 | Inner mold face cambered surface radius | 600mm |
| 2 | Hollow region type chamber width | 150mm |
| 3 | Hollow region type chamber height | 8mm |
| 4 | Cable hood width | 300mm |
| 5 | Cable hood length | 1535mm |
| 6 | Foam flowering structure thickness degree | 1.5mm |
| 7 | Laminate construction thickness on foam | 1.5mm |
The lightweight cable hood forming method the following steps are included:
1) the paved mold of cable hood, cable hood are made according to the cable hood inner mold face structure size and cable hood length dimension
Paved mold is processed using Q235 structural steel.
2) to PMI foam carry out machine add, machine add after PMI froth bed transversal cross-section and cable hood sandwich of layers structure size phase
Together, sandwich of layers longitudinal length is 250mm, i.e., the quantity of PMI froth bed is (1535/250) × 2=12.28 ≈ 13.
3) the fibre reinforced modified epoxy prepreg that the cable hood uses with a thickness of 0.3mm, number is layer by layer in lower berth
1.5/0.3=5, number is 1.5/0.3=5 layer by layer on upper berth, is cut according to the sectional dimension of cable hood and cable hood length dimension fine
Prepreg is tieed up, specific as follows:
Lower fiber prepreg material blank size and quantity: 320mm × 1535mm size prepreg 3 is opened, 1535mm × 320mm ruler
Very little prepreg 2 is opened；
Upper fiber prepreg material blank size and quantity: 305mm × 1535mm size prepreg 2 is opened, 1535mm × 305mm ruler
Very little prepreg 3 is opened；
The above blank size is all to be parallel to fiber prepreg material machine direction size × perpendicular to fiber prepreg material fiber side
To size；
It is extended the deadline and is made due to fiber prepreg material web, and to operate convenient for subsequent manual laying, 1535mm size can be divided into 3
Duan Jinhang is cut, and guarantees that overall length is not less than 1535mm.
4) in the paved die surface brushing release agent of cable hood, then according to 90 ° of fiber prepreg material machine direction, 0 °,
90 °, 0 °, 90 ° of sequence carry out foam flowering structure layer laying, 5 layers are spread altogether, wherein 90 ° of layings use 320mm × 1535mm size
Prepreg, 0 ° of laying use 1535mm × 320mm size prepreg, and 0 ° of laying of the second layer and the prepreg of the 4th layer of 0 ° of laying are spelled
Seam need to be staggered；
5) the PMI froth bed external coating epoxyn added in machine, is then adhered to cable for PMI froth bed
On cover corresponding position；
6) structure sheaf laying on foam is carried out according to 0 ° of fiber prepreg material machine direction, 90 °, 0 °, 90 °, 0 ° of sequence, altogether
5 layers of paving, wherein 90 ° of layings use 305mm × 1535mm size prepreg, 0 ° of laying is presoaked using 1535mm × 305mm size
Material, the prepreg splicing seams of first and third, five layer of 0 ° of laying need to be staggered；
7) in cable hood preform surfaces layer overlay polytetrafluoroethylene (PTFE) release cloth, the smooth corrugationless of release cloth, then again
Layer overlay airfelt, stamps vacuum bag, is pressurizeed by the way of vacuumizing, and is put into 130 DEG C of 2h moldings that are heating and curing in baking oven.
8) after solidifying, cable hood cools to 50 DEG C with the furnace hereinafter, then take out cable hood prefabricated component from mold,
Polishing finishing is carried out to surface spikes, obtains cable hood product.
The cable hood that above-mentioned technique obtains, product quality about 2.3Kg, compared with glass fiber compound material cable hood, weight
Amount alleviates about 1.6Kg, compared with carbon fiber composite material cable cover, weight saving about 1.2Kg.
Embodiment 2
It is embedded in the winding intracorporal lightweight cable hood structural parameters of shell in certain model and is shown in Table 1:
Table 1
| Serial number | Project | Structural parameters |
| 1 | Inner mold face cambered surface radius | 400mm |
| 2 | Hollow region type chamber width | 80mm |
| 3 | Hollow region type chamber height | 8mm |
| 4 | Cable hood width | 225mm |
| 5 | Cable hood length | 3300mm |
| 6 | Foam flowering structure thickness degree | 1.2mm |
| 7 | Laminate construction thickness on foam | 1.2mm |
The lightweight cable hood forming method the following steps are included:
1) the paved mold of cable hood, cable hood are made according to the cable hood inner mold face structure size and cable hood length dimension
Paved mold is processed using Q235 structural steel.
2) to PMI foam carry out machine add, machine add after PMI froth bed transversal cross-section and cable hood sandwich of layers structure size phase
Together, sandwich of layers longitudinal length is 300mm, i.e., the quantity of PMI froth bed is (3300/300) × 2=22.
3) the fibre reinforced modified epoxy prepreg that the cable hood uses with a thickness of 0.3mm, number is layer by layer in lower berth
1.2/0.3=4, number is 1.2/0.3=4 layer by layer on upper berth, is cut according to the sectional dimension of cable hood and cable hood length dimension fine
Prepreg is tieed up, specific as follows:
Lower fiber prepreg material blank size and quantity: 245mm × 3300mm size prepreg 2 is opened, 3300mm × 245mm ruler
Very little prepreg 2 is opened；
Upper fiber prepreg material blank size and quantity: 230mm × 3300mm size prepreg 2 is opened, 3300mm × 230mm ruler
Very little prepreg 3 is opened；
The above blank size is all to be parallel to fiber prepreg material machine direction size × perpendicular to fiber prepreg material fiber side
To size；
It is extended the deadline and is made due to fiber prepreg material web, and to operate convenient for subsequent manual laying, 3300mm size can be divided into 6
Duan Jinhang is cut, and guarantees that overall length is not less than 3300mm.
4) in the paved die surface brushing release agent of cable hood, then according to 90 ° of fiber prepreg material machine direction, 0 °,
90 °, 0 ° of sequence carry out foam flowering structure layer laying, 4 layers are spread altogether, wherein 90 ° of layings are using the preimpregnation of 245mm × 3300mm size
Material, 0 ° of laying use 3300mm × 245mm size prepreg, the prepreg splicing seams of the second layer 0 ° of laying and the 4th layer of 0 ° of laying
It need to be staggered；
5) the PMI froth bed external coating epoxyn added in machine, is then adhered to cable for PMI froth bed
On cover corresponding position；
6) structure sheaf laying on foam is carried out according to 90 ° of fiber prepreg material machine direction, 0 °, 90 °, 0 ° of sequence, spreads 4 altogether
Layer, wherein 90 ° of layings use 230mm × 3300mm size prepreg, 0 ° of laying uses 3300mm × 230mm size prepreg,
0 ° of laying of the second layer and the prepreg splicing seams of the 4th layer of 0 ° of laying need to be staggered；
7) in cable hood preform surfaces layer overlay polytetrafluoroethylene (PTFE) release cloth, the smooth corrugationless of release cloth, then again
Layer overlay airfelt, stamps vacuum bag, is pressurizeed by the way of vacuumizing, and is put into 130 DEG C of 2h moldings that are heating and curing in baking oven.
8) after solidifying, cable hood cools to 50 DEG C with the furnace hereinafter, then take out cable hood prefabricated component from mold,
Polishing finishing is carried out to surface spikes, obtains cable hood product.
The cable hood that above-mentioned technique obtains, product quality about 3.4Kg, compared with glass fiber compound material cable hood, weight
Amount alleviates about 3.3Kg, compared with carbon fiber composite material cable cover, weight saving about 2.5Kg.
Claims (7)
1. be embedded in one kind winding the intracorporal lightweight cable hood forming method of shell, the cable hood section include structure sheaf (4) and
Two sandwich of layers (3), wherein the structure sheaf (4) includes that upper structure sheaf (4b) and two are arranged symmetrically in structure sheaf (4b)
The flowering structure layer (4a) at both ends, and the inner surface of the outer surface and the end upper structure sheaf (4b) of each flowering structure layer (4a) encloses
Close the closing chamber (6) for being formed and being installed for sandwich of layers (3), region and upper structure sheaf (4b) between two flowering structure layers (4a)
Inner surface forms hollow region (5), the cambered surface radius in the inner mold face (1) of two flowering structure layers (4a) and winding shell it is outer
Diameter is identical；It is characterized by: cable hood forming method is specific as follows:
1) to light foam material carry out machine add, machine add after light foam layer transversal cross-section and sandwich of layers (3) structure size phase
Together；
2) according to the number of plies of laying under the THICKNESS CALCULATION of the thickness of flowering structure layer (4a) and single layer fibre prepreg, according to upper structure
The number of plies of laying on the thickness of layer (4b) and the THICKNESS CALCULATION of single layer fibre prepreg, then according to the sectional dimension of cable hood and
Cable hood length dimension cuts fiber prepreg material；
3) in the paved die surface brushing release agent of cable hood, then according to 0 ° of fiber prepreg material machine direction, 90 ° it is alternate suitable
Sequence carries out flowering structure layer laying, paving to the required number of plies；
4) then it is corresponding to be adhered to cable hood both ends by the light foam layer surface brushing adhesive added in machine for light foam layer
On position；
5) upper structure sheaf laying is alternately sequentially carried out according to 0 °, 90 ° of fiber prepreg material machine direction, paving to the required number of plies is formed
Cable hood prefabricated component；
6) in cable hood preform surfaces layer overlay polytetrafluoroethylene (PTFE) release cloth, then the smooth corrugationless of release cloth is then covered with
One layer of airfelt, stamps vacuum bag, is pressurizeed by the way of vacuumizing, and is put into baking oven the molding that is heating and curing；Curing cycle is pressed
It is executed according to the curing cycle of used fiber prepreg material.
2. being embedded in the winding intracorporal lightweight cable hood forming method of shell according to claim 1, it is characterised in that: the step
It is rapid 1) in, the longitudinal length of sandwich of layers (3) is 200~300mm, and the quantity of light foam layer is after cable hood length/machine adds
Light foam layer length × 2；When calculated light foam layer number contains decimal, light foam layer number is to remove decimal
Add one.
3. being embedded in the winding intracorporal lightweight cable hood forming method of shell according to claim 1, it is characterised in that: the step
It is rapid 2) in, since cable hood is according to 0 ° of fiber prepreg material machine direction, 90 ° of sequence alternate laying, so needing basis when blanking
Fiber prepreg material machine direction is cut；When cable hood length is longer, to be operated convenient for the cutting of fiber prepreg material and laying,
Each layer of fiber prepreg material is divided into multistage and is cut, and guarantees total length, in the operation of subsequent laying, the fiber prepreg in 0 ° of direction
Material splicing seams need to be staggered.
4. being embedded in the winding intracorporal lightweight cable hood forming method of shell according to claim 1, it is characterised in that: the step
It is rapid 4) in, adhesive use epoxy resin tackifier.
5. being embedded in the winding intracorporal lightweight cable hood forming method of shell according to claim 1, it is characterised in that: the electricity
The paved mold of cable cover makes according to molding surface size in cable hood and cable hood length, and the paved mold material of cable hood is metal.
6. being embedded in the winding intracorporal lightweight cable hood forming method of shell according to claim 1, it is characterised in that: the folder
Central layer (3) uses light foam material, and light foam material is PMI foam.
7. being embedded in the winding intracorporal lightweight cable hood forming method of shell according to claim 1, it is characterised in that: on described
Structure sheaf (4b) and flowering structure layer (4a) are made of multi-layer fiber prepreg, and fiber prepreg material is carbon-fibre reinforced epoxy resin
Prepreg or glass fiber reinforced epoxy resin prepreg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910892417.6A CN110481058B (en) | 2019-09-20 | 2019-09-20 | Method for forming light cable cover embedded in winding shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910892417.6A CN110481058B (en) | 2019-09-20 | 2019-09-20 | Method for forming light cable cover embedded in winding shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110481058A true CN110481058A (en) | 2019-11-22 |
| CN110481058B CN110481058B (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910892417.6A Active CN110481058B (en) | 2019-09-20 | 2019-09-20 | Method for forming light cable cover embedded in winding shell |
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