CN109774192A - A kind of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover integral forming technique - Google Patents
A kind of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover integral forming technique Download PDFInfo
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- CN109774192A CN109774192A CN201910170673.4A CN201910170673A CN109774192A CN 109774192 A CN109774192 A CN 109774192A CN 201910170673 A CN201910170673 A CN 201910170673A CN 109774192 A CN109774192 A CN 109774192A
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Abstract
The invention discloses a kind of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover integral forming techniques, the outer cover includes upper head-shield and lower head-shield, the upper head-shield is upper and lower parting structure with lower head-shield and is connected by hitch cover plate, two parts of the upper head-shield and lower head-shield are composed so that Split combined mould is separately fabricated, and integral forming technique includes: step 1: five part moulds of combination；Step 2: in composable mold surface spray coated flame retardant gel coating resin；Step 3: after gel coating resin gel, hand paste is coated with glass fiber flame retardant layer on gel coating resin；Step 4: being coated with carbon fiber and glass fabric, be laid with resin and import route, import resin；Step 5: curing molding；Step 6: mold fission dismantles demoulding, product cutting processing and external coating are handled, it is connected between the upper head-shield and lower head-shield by connected structure, the composable mold device is additionally provided with the square groove of installation silastic sealing strip other than positioning device and clamping device.
Description
Technical field
The present invention relates to magnetically levitated train driver's cab lightweight research field more particularly to a kind of fiber hybrid composites
Magnetic levitation passenger train drivers' cab outer cover integral forming technique.
Background technique
Magnetic suspension train is divided into middle low speed and high speed two types, and middle low speed magnetic suspension mainly faces urban track traffic etc.
Short distance rail traffic, 80~150 kilometers of speed per hour.China has built up first middle low speed magnetic suspension train in Shanghai in 1992.Closely
Nian Lai, magnetic levitation technology enter Rapid development stage, in the case where " energy conservation and environmental protection " theory is advocated in the whole world, that is, require train lightweight
To realize lower energy consumption, stronger transport capacity, and it can ensure the longer life of safety and the operation of its operational process.
With the fast development of domestic and international advanced composite material, with light high-strength, corrosion-resistant, endurance, convenient formation
Etc. series of advantages, aerospace, steamer, field of track traffic with present rapid growth trend.
Therefore, in terms of magnetically levitated train driver's cab lightweight, using carbon fiber and glass hybrid composite panel construction,
It can achieve the effect that than 30% or more present 8mm glass reinforced plastic drivers' cab loss of weight, while there is intensity height, impact resistance, fire-retardant
The good advantage of property, fatigue behaviour.
Summary of the invention
Present invention is primarily aimed at solving the problems, such as that magnetically levitated train driver's cab is light-weighted, while meeting train operator room
It can using carbon fiber and glass fiber hybrid composite material face structure to intensity, rigidity, fire-retardant and impact resistance requirement
Achieve the effect that than 30% or more present 8mm glass reinforced plastic drivers' cab loss of weight.
The technical solution of the invention is as follows: a kind of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover integral into
Type technique, technique specifically comprise the following steps:
Step 1: combination constitutes five sheet molds of upper head-shield and lower hood portion；
Step 2: in composable mold inner surface spray coated flame retardant gel coating resin；
Step 3: after fire-retardant gel coating resin gel, hand paste is coated with combustion-proof glass fiber layer on the fire-retardant gel coating resin；
Step 4: being coated with main structural (glass fibre and carbon fiber hybrid layer) in the combustion-proof glass fiber layer surface, be laid with tree
Rouge imports route, imports thermosetting resin；
Step 5: forming process into being heating and curing；
Step 6: mold to be combined is cooled to room temperature, and removes vacuum aided material all on cover；
Step 7: pasting glass layer and carbon fiber/virtue in the inner surface of the shell hand with the perfusion resin rich in inorganic fire-retarded filler
Synthetic fibre intermixed layer；
Step 8: after cured, composable mold fission dismantles demoulding；
Step 9: product cutting processing simultaneously carries out external coating processing.
A further improvement of the present invention is that: the outer cover includes two parts of upper head-shield and lower head-shield, the upper head-shield
It is upper and lower parting structure with lower head-shield and is connected by hitch cover plate, two parts of the upper head-shield and lower head-shield is with Split assembled
Mold is separately fabricated to be composed, and the upper head-shield mold is composed of two panels mold, and the lower head-shield mold is by three pieces mould
Tool is composed, and the upper head-shield mold includes right side mold and front mold, and the lower head-shield mold includes hitch cover plate
Mold, left side mold and bottom surface mold are mutually inserted connection by connected structure between the upper head-shield and lower head-shield, described
Composable mold device is additionally provided with the square groove of installation silastic sealing strip, it is ensured that mould other than positioning device and clamping device
Next process is carried out after tool air-tightness.Traditional shutter has been changed to upper and lower parting by left and right parting by the present invention, logical up and down
It crosses connected structure and completes combination, no mechanical connection is easier to realize aerodynamic configuration design, can effectively reduce windage, molding to mix
Fibrous composite headstock hood has intensity height, damage tolerance high, scarce than 30% or more glass reinforced plastic headstock hood weight saving
Mouthful sensibility is low and impact resistance, anti-flammability, corrosion resistance, aging and the superior feature of fatigue behaviour.
A further improvement of the present invention is that: the structure sheaf of the outer cover is successively are as follows: gel coating resin, combustion-proof glass fiber layer,
Cover main structural, structural core layer and carbon fiber/aramid fiber intermixed layer, the cover main structural are glass fibre and carbon fiber
Intermixed layer, the structural core layer are that hand pastes glass layer.
A further improvement of the present invention is that: the thermosetting resin mass fraction in step 4 is between 35% ~ 55%.
A further improvement of the present invention is that: the type of the thermosetting resin matrix can for unsaturated polyester resin,
One of epoxy resin, vinylite or phenolic resin or two kinds and two or more combinations.
A further improvement of the present invention is that: used glass fibre and carbon fiber hybrid layer can be unidirectional cloth, double
Axial cloth, three axial cloth, plain cloth, satin or twill.
A further improvement of the present invention is that: the glass layer: carbon fiber layer: the weight ratio of aramid fiber layer is (1
~ 20): (60 ~ 100): carbon fiber-reinforced resin layer and glass between (1 ~ 20), in the glass fibre and carbon fiber hybrid layer
The weight ratio of fiber-reinforced resin layer is between 0.6 ~ 1.5, wherein the content of the carbon fiber layer is not less than overall enhancement layer
60%, the thickness of carbon fibre resin enhancement layer is between 3.0mm ~ 4.0mm in the glass fibre and carbon fiber hybrid layer.
A further improvement of the present invention is that: the combustion-proof glass fiber layer is coated on the main structural two sides, plays resistance
Combustion acts on, and the thickness of combustion-proof glass fiber layer described in single layer is between 0.5mm ~ 2mm, the resistance of the combustion-proof glass fiber layer use
Combustion resin system can add inorganic fire-retarded filler or organic fire-retardant.
A further improvement of the present invention is that: in the flame-retarded resin that the combustion-proof glass fiber layer uses, nothing can be added
Machine fire-retardant filler or organic fire-retardant.
The utility model has the advantages that
1, integrally formed magnetic suspension drivers' cab outer cover simplifies assembly process, shaping efficiency height, quality and stablizes；
2, VaRTM introducing technology is taken, the resin content of product can be efficiently controlled, gives full play to the high spy of carbon fiber strength
Point；
3, fiber hybrid composite drivers' cab outer cover weight ratio aluminum alloy material, which reduces by 50%, glass reinforced plastic, reduces by 30% or more；
4, the fire proofing of the technique is applicable in by choosing, composite material drivers' cab outer cover meets fire protection requirement and meets DIN5510-
2 " fire prevention of rail vehicle " requirement；
5, carbon fibre composite damage tolerance is high, notch sensitivity is low, since the electric conductivity of itself is with good electricity
Magnetic cup closes performance；
6, hybrid composite drivers' cab outer cover impact property reaches 1B grades of IEC1373, and collision performance meets UIC651-2002,
Be subjected to 1Kg aluminium bullet 260km/h, 45 ° of projected angle of impact do not penetrate；
7, product is corrosion-resistant, strength retention ratio > 80% after accelerated aging test, and fatigue behaviour is superior.
Detailed description of the invention
Fig. 1 is magnetic levitation passenger train drivers' cab outer cover shape effect picture of the present invention；
Fig. 2 is drivers' cab outer cover material structural schematic diagram；
Fig. 3 vacuum imports the schematic diagram that system is laid with.
In the figures above: the right side 101-, the front 102-, 103- hitch cover plate, the left side 104-, the bottom surface 105-, 201-
Gel coating resin, 202- combustion-proof glass fiber layer, 203- main structural (glass fibre and carbon fiber hybrid layer), 204- structural core layer
(hand paste glass layer), 205- carbon fiber/aramid fiber intermixed layer, 301- vacuum bag film, 302- gas-guide tube, 303- release cloth,
304- porous release film, 305- product, 306- guide layer, 307- suction interface, 308- diversion pipe, 309- feed inlet.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention is done below in conjunction with drawings and examples and is further retouched in detail
It states, the embodiment is only for explaining the present invention, does not constitute and limits to protection scope of the present invention.
With reference to the accompanying drawing to a kind of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover integral forming technique into
One step detailed description:
The present embodiment is imported integrally formed based on carbon fiber and glass fiber hybrid composite material magnetic suspension visitor using VaRTM resin
The technique of vehicle drivers' cab outer cover.
As shown, the present embodiment provides a kind of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover is integrally formed
Drivers' cab and pod are overall shaped into drivers' cab outer cover by technique, the present invention, and moulding process specifically comprises the following steps:
Step 1: combination constitutes five sheet molds of upper head-shield and lower hood portion；
Step 2: being fire-retardant gel coat, spray using pneumatic spray application gel coating resin 201 in composable mold inner surface spray coated flame retardant gel coating resin
Tu Qianyong acetone adjust viscosity, spraying gel coat uniformly, no sag, poor glue；
Step 3: it is mixed well after certain proportion inorganic fire-retarded filler is added in perfusion resin, after fire-retardant 201 gel of gel coating resin,
Hand paste is coated with combustion-proof glass fiber layer 202 on the fire-retardant gel coating resin 201, can be while enhancing flame retardant effect, in gel coat
Transition is played between layer 201 and carbon fibre fabric and prevents lamination；
Step 4: after hand paste layer gel, being coated with master on 202 surface of combustion-proof glass fiber layer according to Lay up design sequential method
Structure sheaf 203(glass fibre and carbon fiber hybrid layer), until specific thickness be the cover main structural, with car body connecting portion
Position laying carbon fibre fabric enhancement layer pre-fixes the carbon fibre fabric interlayer of curvature larger part with glue spraying, wherein carbon fiber
The laying thickness and sequence of fabric can ensure that the mechanical properties such as intensity, rigidity, impact, the impact resistance of cover；
Step 5: forming process into being heating and curing, be laid with release cloth 303, porous release film respectively in 305 inner surface of product
304, flow-guiding screen 306, be arranged again diversion pipe 308, gas-guide tube 302, suction interface 307, feed inlet 309, with vacuum bag film 301 wrap
Sealing is wrapped up in, resin guide system and extract system are laid with the thermosetting resin for ensuring to import and infiltrate entire cover, in perfusion thermosetting
Property resin in be added certain proportion flame-retardant additive, with VaRTM technique import thermosetting resin, infiltrated to thermosetting resin
After whole system, into the process that is heating and curing；
Step 6: after product is heating and curing by curing process system, mold to be combined is cooled to room temperature, and is removed all on cover
Vacuum aided material；
Step 7: pasting glass layer and carbon fiber/virtue in the inner surface of the shell hand with the perfusion resin rich in inorganic fire-retarded filler
Synthetic fibre intermixed layer, it is ensured that the flame retardant property of outer cover inner surface；
Step 8: after cured, the fission that composable mold is carried out after cooling dismantles demoulding；
Step 9: finally product being carried out at cutting processing and external coating according to magnetically levitated train driver's cab outer cover engineering drawing
Reason.
The outer cover includes two parts of upper head-shield and lower head-shield, the upper head-shield and lower head-shield be upper and lower parting structure simultaneously
It being connected by hitch cover plate 103, two parts of the upper head-shield and lower head-shield are composed so that Split combined mould is separately fabricated,
The upper head-shield mold is composed of two panels mold, and the lower head-shield mold is formed by three pieces die assembly, the upper head-shield
Mold includes 101 mold of right side and positive 102 molds, and the lower head-shield mold includes 103 mold of hitch cover plate, left side
104 molds and bottom surface mold are mutually inserted connection, the composable mold by connected structure between the upper head-shield and lower head-shield
Device is additionally provided with the square groove of installation silastic sealing strip, it is ensured that mold air-tightness other than positioning device and clamping device
After carry out next process.
The structure sheaf of the outer cover is successively are as follows: gel coating resin 201, combustion-proof glass fiber layer 202, cover main structural 203, knot
Structure core layer 204 and carbon fiber/aramid fiber intermixed layer 205, the cover main structural 203 are glass fibre and carbon fiber hybrid
Layer, the structural core layer 204 are that hand pastes glass layer.
The type of the thermosetting resin matrix can be unsaturated polyester resin, epoxy resin, vinylite or phenol
One of urea formaldehyde or two kinds and two or more combinations, the thermosetting resin mass fraction is between 35% ~ 55%.
The used cover main structural 203(glass fibre and carbon fiber hybrid layer) it can be unidirectional cloth, twin shaft
Xiang Bu, three axial cloth, plain cloth, satin or twill, the glass layer: carbon fiber layer: the weight of aramid fiber layer
Than in (1 ~ 20): (60 ~ 100): between (1 ~ 20), the main structural 203(glass fibre and carbon fiber hybrid layer) in carbon
The weight ratio of fiber-reinforced resin layer and galss fiber reinforced resin layer is between 0.6 ~ 1.5, wherein the carbon fiber layer contains
60% of amount not less than overall enhancement layer, the main structural 203(glass fibre and carbon fiber hybrid layer) in carbon fibre resin
The thickness of enhancement layer is between 3.0mm ~ 4.0mm.
The combustion-proof glass fiber layer 202 is coated on the two sides of the main structural 203, fire retardation, described in single layer
The thickness of combustion-proof glass fiber layer 202 is between 0.5mm ~ 2mm, the flame-retarded resin body of the use of combustion-proof glass fiber layer 202
System can add inorganic fire-retarded filler or organic fire-retardant.
The utility model has the advantages that
1, integrally formed magnetic suspension drivers' cab outer cover simplifies assembly process, shaping efficiency height, quality and stablizes；
2, VaRTM introducing technology is taken, the resin content of product can be efficiently controlled, gives full play to the high spy of carbon fiber strength
Point；
3, fiber hybrid composite drivers' cab outer cover weight ratio aluminum alloy material, which reduces by 50%, glass reinforced plastic, reduces by 30% or more；
4, the fire proofing of the technique is applicable in by choosing, composite material drivers' cab outer cover meets fire protection requirement and meets DIN5510-
2 " fire prevention of rail vehicle " requirement；
5, carbon fibre composite damage tolerance is high, notch sensitivity is low, since the electric conductivity of itself is with good electricity
Magnetic cup closes performance；
6, hybrid composite drivers' cab outer cover impact property reaches 1B grades of IEC1373, and collision performance meets UIC651-2002,
Be subjected to 1Kg aluminium bullet 260km/h, 45 ° of projected angle of impact do not penetrate；
7, product is corrosion-resistant, strength retention ratio > 80% after accelerated aging test, and fatigue behaviour is superior.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
It is merely illustrated the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (9)
1. a kind of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover integral forming technique, technique specifically include following step
It is rapid:
Step 1: combination constitutes five sheet molds of upper head-shield and lower hood portion；Step 2: in composable mold inner surface spray coated flame retardant
Gel coating resin；
Step 3: after fire-retardant gel coating resin gel, hand paste is coated with combustion-proof glass fiber layer on the fire-retardant gel coating resin；Step 4:
It is coated with glass fibre and carbon fiber hybrid layer in the combustion-proof glass fiber layer surface, resin is laid with and imports route, import thermosetting
Property resin；Step 5: forming process into being heating and curing；Step 6: mold to be combined is cooled to room temperature, and is removed all on cover
Vacuum aided material；Step 7: with rich in inorganic fire-retarded filler perfusion resin the inner surface of the shell hand paste glass layer and
Carbon fiber/aramid fiber intermixed layer；Step 8: after cured, composable mold fission dismantles demoulding；Step 9: product cutting processing is gone forward side by side
The processing of row external coating.
2. a kind of integrally formed work of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover according to claim 1
Skill, it is characterised in that: the outer cover includes two parts of upper head-shield and lower head-shield, and the upper head-shield and lower head-shield are upper and lower parting
Structure is simultaneously connected by hitch cover plate, two parts of the upper head-shield and lower head-shield with Split combined mould it is separately fabricated combination and
At the upper head-shield mold is composed of two panels mold, and the lower head-shield mold is formed by three pieces die assembly, the top
Cover mold includes right side mold and front mold, and the lower head-shield mold includes hitch cover plate mold, left side mold and bottom
Face mould tool is mutually inserted connection by connected structure between the upper head-shield and lower head-shield, and the composable mold device is in addition to fixed
Outside position device and clamping device, it is additionally provided with the square groove of installation silastic sealing strip.
3. a kind of integrally formed work of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover according to claim 2
Skill, it is characterised in that: the structure sheaf of the outer cover is successively are as follows: gel coating resin, combustion-proof glass fiber layer, cover main structural, structure
Core layer and carbon fiber/aramid fiber intermixed layer, the cover main structural are glass fibre and carbon fiber hybrid layer, the structural core
Material layer is that hand pastes glass layer.
4. a kind of integrally formed work of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover according to claim 1
Skill, it is characterised in that: the thermosetting resin mass fraction in step 4 is between 35% ~ 55%.
5. a kind of integrally formed work of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover according to claim 4
Skill, it is characterised in that: the type of the thermosetting resin matrix can be unsaturated polyester resin, epoxy resin, vinyl tree
One of rouge or phenolic resin or two kinds and two or more combinations.
6. a kind of integrally formed work of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover according to claim 3
Skill, it is characterised in that: used glass fibre and carbon fiber hybrid layer can for unidirectional cloth, biaxially cloth, three axial cloth, flat
Line cloth, satin or twill.
7. a kind of integrally formed work of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover according to claim 1
Skill, it is characterised in that: the glass layer: carbon fiber layer: the weight ratio of aramid fiber layer is in (1 ~ 20): (60 ~ 100): (1 ~
20) carbon fiber-reinforced resin layer and galss fiber reinforced resin layer between, in the glass fibre and carbon fiber hybrid layer
Weight ratio is between 0.6 ~ 1.5, wherein the content of the carbon fiber layer is not less than the 60% of overall enhancement layer, the glass fibre
And in carbon fiber hybrid layer carbon fibre resin enhancement layer thickness between 3.0mm ~ 4.0mm.
8. a kind of integrally formed work of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover according to claim 3
Skill, it is characterised in that: the combustion-proof glass fiber layer is coated on the main structural two sides, plays fire retardation, hinders described in single layer
The thickness of glass layer is fired between 0.5mm ~ 2mm, and the flame retardant resin systems that the combustion-proof glass fiber layer uses can add
Add inorganic fire-retarded filler or organic fire-retardant.
9. a kind of integrally formed work of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover according to claim 8
Skill, it is characterised in that: in the flame-retarded resin that the combustion-proof glass fiber layer uses, inorganic fire-retarded filler or organic resistance can be added
Fire agent.
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| CN201910170673.4A CN109774192A (en) | 2019-03-07 | 2019-03-07 | A kind of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover integral forming technique |
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| CN201910170673.4A CN109774192A (en) | 2019-03-07 | 2019-03-07 | A kind of fiber hybrid composite magnetic levitation passenger train drivers' cab outer cover integral forming technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112936907A (en) * | 2021-01-28 | 2021-06-11 | 长春嘉林玻璃纤维增强材料有限公司 | Glass carbon fiber composite material layering method and composite material thereof |
| CN113320240A (en) * | 2021-06-29 | 2021-08-31 | 江苏华纳环保科技有限公司 | Glass fiber reinforced plastic part for cab of urban rail vehicle and preparation process thereof |
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