CN108790213A - The preparation method of top plate in a kind of rolling stock aramid fiber honeycomb - Google Patents
The preparation method of top plate in a kind of rolling stock aramid fiber honeycomb Download PDFInfo
- Publication number
- CN108790213A CN108790213A CN201810527292.2A CN201810527292A CN108790213A CN 108790213 A CN108790213 A CN 108790213A CN 201810527292 A CN201810527292 A CN 201810527292A CN 108790213 A CN108790213 A CN 108790213A
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- China
- Prior art keywords
- aramid fiber
- top plate
- cloth
- honeycomb
- rolling stock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of preparation method of top plate in rolling stock aramid fiber honeycomb, includes the following steps：Step S01 processes wooden model mold and manufactures high temp glass steel mold on its basis；Step S02 is laid with the first pre-soaking fiber layer of cloth and the first adhesive film；Step S03 is laid with aramid fiber honeycomb sandwich layer；Step S04 is laid with the second adhesive film and the second pre-soaking fiber layer of cloth；Step S05 forms closed vacuum bag；Step S06, checks whether gas leakage；Step S07, to vacuumizing, negative pressure pressure is 0.8~0.9MPa；Step S08 is put into bakery and is toasted；Product is taken out in step S09, demoulding；Step S10, room temperature cooling, deburring obtain finished product.The simple for process of preparation method of top plate in rolling stock aramid fiber honeycomb of the present invention, production cost is low, production efficiency is high；Using vacuum suction technique, make in aramid fiber honeycomb that evenly, flame retardant property and mechanical property are more preferable for performance everywhere for top plate.
Description
Technical field
The present invention relates to rolling stock interior material technical field, more particularly to top plate in a kind of rolling stock aramid fiber honeycomb
Preparation method.
Background technology
It is higher and higher for vehicle interior/exterior material lightweight demand with the development of rail traffic, conventional rails vehicle
Wallboard has the following deficiencies：
1), material is largely stainless steel, fiberglass and aluminium alloy, and weight is big, cannot be satisfied material lightweight demand；
2) input for, opening metal die is too high, can not cost-recovering in the short time；
3), shape is generally planar or simple curved surface, and moulding is single, can not be with the interior collocation for being formed and being coordinated.
3D honeycomb boards have light weight, bending stiffness and intensity are big, anti-unstability ability is strong, sound insulation and heat-proof quality are good etc.
Advantage, it is very good in pasting property of horizontal direction, it is very suitable for the molding of semi-surface and symmetroid structural member.
The processing technology of existing aramid fiber honeycomb board is usually molding, hot pressing filling or heating furnace vacuum-bag process, and technique is thrown
Money is big, and low production efficiency is not suitable for producing in batches.
Invention content
(1) technical problems to be solved
The technical problem to be solved in the present invention is to provide a kind of railways simple for process, production cost is low, production efficiency is high
The preparation method of top plate, suitable for mass production in vehicle aramid fiber honeycomb；Top plate in the rolling stock aramid fiber honeycomb being prepared
Light weight, intensity are big, can meet flame-retardant standard.
(2) technical solution
In order to solve the above technical problems, the present invention provides a kind of preparation method of top plate in rolling stock aramid fiber honeycomb, packet
Include following steps：
Step S01, the machine-shaping wallboard wooden model mold on engraving lathe, high temp glass is manufactured on the wooden model mold
Steel mold, resin used in fiber reinforced plastic mold are fire resistant resin；Without specially issuing metal die, production cost, production are saved
It is efficient.
Step S02, the spraying high temperature gel coat in the fiber reinforced plastic mold are laid with the first pre-soaking fiber cloth after cured gel coat
Layer, the first adhesive film is laid on the first pre-soaking fiber layer of cloth；By spraying gel coating resin in the fiber reinforced plastic mold
High temperature gel coat is formed, gel coating resin is the special-purpose grease for making glass fiber reinforced plastics product gel coating resin；
Step S03 is laid with aramid fiber honeycomb sandwich layer on first adhesive film；Aramid fiber cellular board light weight, bending stiffness
With intensity height, the wallboard being made from it can meet current rolling stock material lightweight requirement well, and according to practical need
Change its shape.
Step S04 sets the second adhesive film on the aramid fiber honeycomb sandwich layer upper berth, is finally laid on second adhesive film
Second pre-soaking fiber layer of cloth；Aramid fiber honeycomb core, glued membrane, pre-soaking fiber cloth are fire proofing so that rolling stock aramid fiber honeycomb
Middle top plate has good flame retardant property, meets the rolling stock inside gadget fire protection requirement.
Step S05 is laid with flow-guiding screen and exhaust tube in top layer, then spreads vacuum bag film, with butyl rubber belt by vacuum bag
Film is bonded together, and forms closed vacuum bag；
Step S06 seals exhaust tube and the interface of vacuum bag film, by vacuum pump to the exhaust tube with butyl rubber belt
It is evacuated, gives the vacuum bag negative pressure, check whether gas leakage；The vacuum bag is smoothed, checks whether gas leakage；
Step S07 starts to vacuumize to the vacuum bag, and negative pressure pressure is 0.8~0.9MPa；
Step S08 is put into bakery, keeps 160~180 DEG C of temperature, cures 5~7 hours；
Step S09 closes air pressure, and vacuum bag film of dismantling tears demoulding cloth and flow-guiding screen, and product is taken out in demoulding；
Step S10, room temperature cooling, then carry out deburring and obtain top plate finished product in honeycomb.
Further, in the step S02, it is fine that first preimpregnation is set according to the thickness of top plate in aramid fiber honeycomb
Tie up the laying number of plies of layer of cloth and first adhesive film；In the step S04, set according to the thickness of top plate in aramid fiber honeycomb
Set the laying number of plies of second adhesive film and the second pre-soaking fiber layer of cloth 5.
Further, negative pressure pressure is 0.9MPa in the step S07；170 DEG C of baking temperature in the step S08, Gu
Change 6 hours.
Further, the first pre-soaking fiber layer of cloth is identical with the structure of the second pre-soaking fiber layer of cloth, and described
One adhesive film is identical with the structure of second adhesive film.
(3) advantageous effect
The simple for process of preparation method of top plate, production cost be low in rolling stock aramid fiber honeycomb of the present invention, production efficiency
Height, it is suitable for mass production；Compared with traditional hand paste technique, mould pressing process, the present invention uses fiberglass prototype mold, does not need
Special development of metallic mold；Using vacuum suction technique, make in aramid fiber honeycomb top plate everywhere performance evenly, flame retardant property and power
It is more preferable to learn performance.
Description of the drawings
Fig. 1 is the flow diagram of the preparation method of top plate in rolling stock aramid fiber honeycomb of the present invention；
Fig. 2 is the structural schematic diagram of top plate in rolling stock aramid fiber honeycomb of the present invention；
Fig. 3 is the structural schematic diagram of the middle top plate ontology of top plate in rolling stock aramid fiber honeycomb of the present invention；
Wherein：1 for the first pre-soaking fiber layer of cloth, 2 be the first adhesive film, 3 be aramid fiber honeycomb sandwich layer, 4 be the second adhesive film,
5 be the second pre-soaking fiber layer of cloth, 6 be middle top plate ontology.
Specific implementation mode
Refering to fig. 1~Fig. 3, the present invention provide a kind of preparation method of top plate in rolling stock aramid fiber honeycomb, wherein at this
In embodiment, provide top plate in a kind of rolling stock aramid fiber honeycomb, in rolling stock aramid fiber honeycomb top plate include aramid fiber honeycomb core,
Glued membrane is compound in the upper surface of aramid fiber honeycomb core upper surface plate and is compound in plate below aramid fiber honeycomb core lower surface.Top panel
It is to be impregnated into the pre-soaking fiber cloth formed in modified epoxy in advance by glass fabric, lower panel is also by glass fabric
It is impregnated into the pre-soaking fiber cloth formed in modified epoxy in advance.
Refering to Fig. 3, in the present embodiment, the middle top plate ontology 6 of top plate is by both ends in rolling stock aramid fiber honeycomb
T-bolt is installed to connect with body profile on built-in fitting 7, maintenance that is easy to disassemble and carrying out equipment.
Include the following steps refering to fig. 1 with Fig. 2, preparation method：
Step S01, the machine-shaping wallboard wooden model mold on engraving lathe, manufactures high temp glass punching block on wooden model mold
Tool；Without specially issuing metal die, production cost is saved, production efficiency is high.
Step S02, the spraying high temperature gel coat in fiber reinforced plastic mold are laid with the first pre-soaking fiber layer of cloth 1 after cured gel coat,
The first adhesive film 2 is laid on the first pre-soaking fiber layer of cloth 1；
Step S03 is laid with aramid fiber honeycomb sandwich layer 3 on the first adhesive film 2；Aramid fiber cellular board light weight, bending stiffness and
Intensity is high, and the wallboard being made from it can meet current rolling stock material lightweight requirement well, and according to actual needs
Change its shape.
Step S04 is laid with the second adhesive film 4 on aramid fiber honeycomb sandwich layer 3, is finally laid with second on the second adhesive film 4
Pre-soaking fiber layer of cloth 5；Aramid fiber honeycomb core, glued membrane, pre-soaking fiber cloth are fire proofing so that are pushed up in rolling stock aramid fiber honeycomb
Plate has good flame retardant property, meets the rolling stock inside gadget fire protection requirement.
Step S05 is laid with flow-guiding screen and exhaust tube in top layer, then spreads vacuum bag film, with butyl rubber belt by vacuum bag
Film is bonded together, and forms closed vacuum bag；
Step S06 seals exhaust tube and the interface of vacuum bag film with butyl rubber belt, is carried out to exhaust tube by vacuum pump
Pumping, gives vacuum bag negative pressure, checks whether gas leakage；Vacuum bag is smoothed, checks whether gas leakage；
Step S07 starts to vacuumize to vacuum bag, and negative pressure pressure is 0.8~0.9MPa；
Step S08 is put into bakery, keeps 160~180 DEG C of temperature, cures 5~7 hours；
Step S09 closes air pressure, pulls out diversion pipe, vacuum bag film of dismantling, and tears demoulding cloth and flow-guiding screen, and demoulding is taken out
Product；
Step S10, room temperature cooling, then carry out deburring and obtain top plate finished product in honeycomb.
Wherein, the first pre-soaking fiber layer of cloth 1 is identical with the structure of the second pre-soaking fiber layer of cloth 5；In step S02, according to
The thickness of top plate is arranged the laying number of plies of the first pre-soaking fiber layer of cloth 1 and the first adhesive film 2 in aramid fiber honeycomb；In step S04
In, the laying number of plies of the second adhesive film 4 and the second pre-soaking fiber layer of cloth 5 is set according to the thickness of top plate in aramid fiber honeycomb.
In the present embodiment, negative pressure pressure is 0.9MPa in step S07；170 DEG C of baking temperature in step S08, solidification 6 are small
When.
It is tested by the performance to top plate in the rolling stock aramid fiber honeycomb, test result is shown in Table 1.
Table 1：Top plate performance parameter in rolling stock aramid fiber honeycomb
Top plate material is mainly made of aramid fiber honeycomb core and glass fabric in rolling stock aramid fiber honeycomb in the present embodiment, virtue
Synthetic fibre cellular board light weight, bending stiffness and intensity are high, and it is light that the wallboard being made from it can meet current rolling stock material well
Quantization requires, and changes its shape according to actual needs；Aramid fiber honeycomb core, glued membrane, pre-soaking fiber cloth are fire proofing, are made
Obtaining top plate in the rolling stock aramid fiber honeycomb has good flame retardant property, meets the rolling stock inside gadget fire protection requirement；Virtue
The preparation process of top plate is simple in synthetic fibre honeycomb, and production cost is low, production efficiency is high, suitable for mass production；Work is pasted with traditional hand
Skill, mould pressing process are compared, and the present invention uses fiberglass prototype mold, does not need special development of metallic mold；Using vacuum suction
Technique, makes in aramid fiber honeycomb that evenly, flame retardant property and mechanical property are more preferable for performance everywhere for top plate.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (4)
1. the preparation method of top plate in a kind of rolling stock aramid fiber honeycomb, which is characterized in that include the following steps：
Step S01, the machine-shaping wallboard wooden model mold on engraving lathe, manufactures high temp glass punching block on the wooden model mold
Tool；
Step S02, the spraying high temperature gel coat in the fiber reinforced plastic mold are laid with the first pre-soaking fiber layer of cloth after cured gel coat
(1), it is laid with the first adhesive film (2) on the first pre-soaking fiber layer of cloth (1)；
Step S03 is laid with aramid fiber honeycomb sandwich layer (3) on first adhesive film (2)；
Step S04 is laid with the second adhesive film (4) on the aramid fiber honeycomb sandwich layer (3), finally in second adhesive film (4)
The second pre-soaking fiber layer of cloth (5) of upper laying；
Step S05 is laid with flow-guiding screen and exhaust tube in top layer, then spreads vacuum bag film, glued vacuum bag film with butyl rubber belt
It picks up and, form closed vacuum bag；
Step S06 seals exhaust tube and the interface of vacuum bag film with butyl rubber belt, is carried out to the exhaust tube by vacuum pump
Pumping, gives the vacuum bag negative pressure, checks whether gas leakage；The vacuum bag is smoothed, checks whether gas leakage；
Step S07 starts to vacuumize to the vacuum bag, and negative pressure pressure is 0.8~0.9MPa；
Step S08 is put into bakery, keeps 160~180 DEG C of temperature, cures 5~7 hours；
Step S09 closes air pressure, and vacuum bag film of dismantling tears demoulding cloth and flow-guiding screen, and product is taken out in demoulding；
Step S10, room temperature cooling, then carry out deburring and obtain top plate finished product in honeycomb.
2. the preparation method of top plate in rolling stock aramid fiber honeycomb as described in claim 1, which is characterized in that in the step
In S02, the first pre-soaking fiber layer of cloth (1) and first adhesive film are set according to the thickness of top plate in aramid fiber honeycomb
(2) the laying number of plies；In the step S04, second adhesive film (4) is set according to the thickness of top plate in aramid fiber honeycomb
With the laying number of plies of the second pre-soaking fiber layer of cloth (5).
3. the preparation method of top plate in rolling stock aramid fiber honeycomb as described in claim 1, which is characterized in that the step
Negative pressure pressure is 0.9MPa in S07；170 DEG C of baking temperature in the step S08 cures 6 hours.
4. the preparation method of top plate in rolling stock aramid fiber honeycomb as described in claim 1, which is characterized in that described first is pre-
It is identical with the structure of the second pre-soaking fiber layer of cloth (5) to soak scrim cloth (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527292.2A CN108790213A (en) | 2018-05-23 | 2018-05-23 | The preparation method of top plate in a kind of rolling stock aramid fiber honeycomb |
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| CN201810527292.2A CN108790213A (en) | 2018-05-23 | 2018-05-23 | The preparation method of top plate in a kind of rolling stock aramid fiber honeycomb |
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| US6017484A (en) * | 1997-01-21 | 2000-01-25 | Harold P. Hale | Method for manufacture of minimum porosity, wrinkle free composite parts |
| US5939013A (en) * | 1997-08-25 | 1999-08-17 | Florida State University | Process and apparatus for the production of high strength polymer composite structures |
| US7060156B2 (en) * | 2001-07-23 | 2006-06-13 | Vrac, Llc | Three-dimensional spacer fabric resin interlaminar infusion media process and vacuum-induced reinforcing composite laminate structures |
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Application publication date: 20181113 |
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