CN108789967A - A kind of preparation method of rolling stock 3D cellular boards - Google Patents
A kind of preparation method of rolling stock 3D cellular boards Download PDFInfo
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- CN108789967A CN108789967A CN201810500970.6A CN201810500970A CN108789967A CN 108789967 A CN108789967 A CN 108789967A CN 201810500970 A CN201810500970 A CN 201810500970A CN 108789967 A CN108789967 A CN 108789967A
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- Prior art keywords
- vacuum bag
- rolling stock
- preparation
- cellular
- layer
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
-
- 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
-
- 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
- B29L2031/3064—Trains
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Finishing Walls (AREA)
Abstract
The present invention provides a kind of preparation method of rolling stock 3D cellular boards, 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 glass fibre knitting layer;Step S03 brushes novolac resin layer and is laid with fiberglass cloth;Step S04, paving vacuum bag film form closed vacuum bag;Step S05, the vacuum bag negative pressure simultaneously check whether gas leakage;Step S06 keeps 0.3~0.5MPa of the vacuum bag negative pressure pressure;Step S07 imports flame-retardant phenolic resin;Step S08 toasts baking room, keeps 220~240 DEG C of temperature, cures 5~7 hours;Product is taken out in step S09, demoulding;Step S10, room temperature cooling, deburring obtain finished product.Whole simple for process of the preparation methods of rolling stock 3D cellular boards of the present invention, production cost is low;The cellular board mechanical property and flame retardant property being prepared are good, light weight, and bending stiffness and intensity are high, and resistance to ag(e)ing, weather resistance are good.
Description
Technical field
The present invention relates to rolling stock interior material technical field, more particularly to a kind of system of rolling stock 3D cellular boards
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.
And 3D cellular boards are high with light weight, bending stiffness and intensity, anti-unstability ability is strong, sound insulation and heat-proof quality are good
The advantages that, 3D cellular boards have good resistance to ag(e)ing, weather resistance, finished size precision high.
Invention content
(1) technical problems to be solved
The technical problem to be solved in the present invention is to provide a kind of rolling stock 3D honeycomb walls simple for process, production cost is low
The preparation method of plate, it is suitable for mass production;The rolling stock 3D cellular boards light weight that is prepared, intensity are high, can meet row
Flame-retardant standard as defined in industry.
(2) technical solution
In order to solve the above technical problems, the present invention provides a kind of preparation method of rolling stock 3D cellular boards, including such as
Lower step:
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 is saved.
Step S02, spraying high temperature gel coat, is laid with glass fibre knitting after cured gel coat in the fiber reinforced plastic mold
Layer;
Step S03 brushes novolac resin layer on the glass fibre knitting layer, and phenolic aldehyde tree can be brushed by way of hand paste
Then fat is laid with fiberglass cloth;Glass fibre knitting layer, novolac resin layer and fiberglass cloth are fire proofing,
So that rolling stock 3D cellular boards have good flame retardant property, meet rolling stock inside gadget fire protection requirement.
Step S04 in top layer laying release cloth, flow-guiding screen, leads pitch tube and exhaust tube, then spreads vacuum bag film, use
Vacuum bag film is bonded together by butyl rubber belt, forms closed vacuum bag;After the fiberglass cloth has been spread, then it is laid with de-
Mould cloth prevents phenolic resin and vacuum bag film, flow-guiding screen etc. when demoulding to be adhered to each other;Again in release cloth upper berth flow-guiding screen, lead
Drift net is that when vacuumizing, vacuum bag film locally has residual air in order to prevent;Exhaust tube is stretched from the edge osculum of vacuum bag film
To intermediate left and right position, osculum cements sealing with butyl rubber;An osculum is opened in vacuum bag film centre position, pitch tube is led and stretches into
, osculum cements sealing with butyl rubber.
Step S05, the interface for leading pitch tube and vacuum bag film is sealed with butyl rubber belt, and exhaust tube is sealed with butyl rubber belt
With the interface of vacuum bag film, the exhaust tube is evacuated by vacuum pump, the vacuum bag negative pressure is given, checks whether
Gas leakage smooths the vacuum bag, the step of before inspection whether in place, reaffirm whether gas leakage;
Step S06 starts to vacuumize to the vacuum bag, and negative pressure pressure is 0.3~0.5MPa;
Step S07 imports flame-retardant phenolic resin by the pitch tube auxiliary of leading, the phenolic resin is made equably to infiltrate
Into the glass fibre knitting layer and the fiberglass cloth, make 3D cellular boards everywhere performance evenly, mechanical property
It is more preferable with flame retardant property;Phenolic resin be full of mold after close described in lead pitch tube;
Step S08 is put into bakery, keeps 220~240 DEG C of temperature, cures 5~7 hours;
Step S09 closes air pressure, pulls out and lead pitch tube, vacuum bag film of dismantling is torn after phenolic resin is fully cured
Product is taken out in demoulding cloth and flow-guiding screen, demoulding;
Step S10, room temperature cooling, then carry out deburring and obtain cellular board finished product.The 3D cellular board light weights being prepared,
Bending stiffness and intensity are high, and the wallboard being made from it can meet current rolling stock material lightweight requirement well, resistance to old
The property changed, weather resistance are good;Compared to stainless steel wallboard, 3D cellular boards preferably can carry out installation with interior other parts and take
Match.
In step 2, high temperature gel coat is formed by spraying gel coating resin, gel coating resin is to make glass fiber reinforced plastics product gel coat
The special-purpose grease of layer;The thickness of the glass fibre knitting layer is set according to actual needs.
Further, the fiberglass cloth is substituted by glass mat.
Further, the thickness of the fiberglass cloth is 0.18mm.
Further, negative pressure pressure is 0.4MPa in the step S06;230 DEG C of baking temperature in the step S08, Gu
Change 6 hours.
(3) advantageous effect
Whole simple for process of the preparation methods of rolling stock 3D cellular boards of the present invention, without specially issuing metal mold
Tool, production cost is low, suitable for mass production;The mechanical property and flame retardant property for the cellular board entirety being prepared are good, whole
Light weight, bending stiffness and intensity are high, meet current rolling stock material lightweight requirement, resistance to ag(e)ing, weather resistance
It is good.
Description of the drawings
Fig. 1 is the flow diagram of the preparation method of rolling stock 3D cellular boards of the present invention;
Fig. 2 is the structural schematic diagram of rolling stock 3D cellular boards of the present invention;
Wherein:1 it is glass fibre knitting layer, 2 be novolac resin layer, 3 is fiberglass cloth.
Specific implementation mode
Refering to fig. 1 and Fig. 2, the present invention provide a kind of preparation method of rolling stock 3D cellular boards, referring to Fig.2, at this
In embodiment, rolling stock 3D cellular boards include glass fibre knitting layer 1, novolac resin layer 2 and fiberglass cloth 3;Iron
The upper end of road vehicles 3D cellular boards is connect by screw with the U-shaped connector of car body, and lower end is plugged on body profile;Refering to figure
1, cellular board preparation method includes the following steps:
Step S01, according to cellular board appearance profile, the machine-shaping wallboard wooden model mold on engraving lathe, in wooden model
High temp glass steel mold is manufactured on mold, resin is fire resistant resin used in fiber reinforced plastic mold;Without specially issuing metal die,
Save production cost.
Step S02, the spraying high temperature gel coat in fiber reinforced plastic mold are laid with glass fibre knitting layer 1 after cured gel coat;
Step S03 brushes novolac resin layer 2 on glass fibre knitting layer 1, is then laid with fiberglass cloth 3;Glass
Fiber needle tissue layer 1, novolac resin layer 2 and fiberglass cloth 3 are fire proofing so that rolling stock 3D cellular boards have
There is good flame retardant property, meets rolling stock inside gadget fire protection requirement.
Step S04 in top layer laying release cloth, flow-guiding screen, leads pitch tube and exhaust tube, then spreads vacuum bag film, use
Vacuum bag film is bonded together by butyl rubber belt, forms closed vacuum bag;After fiberglass cloth 3 has been spread, release cloth is then spread,
Phenolic resin and vacuum bag film, flow-guiding screen etc. when demoulding is prevented to be adhered to each other;Again in release cloth upper berth flow-guiding screen, flow-guiding screen is
Vacuum bag film locally has residual air in order to prevent;Exhaust tube reaches intermediate left and right position from the edge osculum of vacuum bag film,
Osculum cements sealing with butyl rubber;An osculum is opened in vacuum bag film centre position, pitch tube is led and stretches into, osculum butyl
Rubber cements sealing.
Step S05 is evacuated exhaust tube by vacuum pump, gives vacuum bag negative pressure, sealed with butyl rubber belt and lead tree
The interface of fat pipe and vacuum bag film seals exhaust tube and the interface of vacuum bag film with butyl rubber belt, checks whether gas leakage, will
Vacuum bag smooths, the step of before inspection whether in place, reaffirm whether gas leakage;
Step S06 starts to vacuumize to vacuum bag, and negative pressure pressure is 0.3~0.5MPa;
Step S07 imports flame-retardant phenolic resin by leading pitch tube auxiliary, so that phenolic resin is equably infiltrated and arrive glass fibers
Tie up in knitted layer 1 and fiberglass cloth 3, make 3D cellular boards everywhere performance evenly, whole mechanical property and anti-flammability
It can be more preferable;Pitch tube is led in closing after phenolic resin is full of mold;
Step S08 is put into bakery, and baking keeps 220~240 DEG C of temperature, cures 5~7 hours;
Step S09 closes air pressure, pulls out and lead pitch tube, vacuum bag film of dismantling is torn after phenolic resin is fully cured
Product is taken out in demoulding cloth and flow-guiding screen, demoulding;
Step S10, room temperature cooling, then carry out deburring and obtain cellular board finished product.The 3D cellular board light weights being prepared,
Bending stiffness and intensity are high, and the wallboard being made from it can meet current rolling stock material lightweight requirement, Er Qieke well
Change its shape according to actual needs;Its resistance to ag(e)ing, weather resistance are good;Compared to stainless steel wallboard, 3D cellular boards can be more preferable
Ground carries out installation collocation with interior other parts.
In step 2, high temperature gel coat is formed by spraying gel coating resin, gel coating resin is to make glass fiber reinforced plastics product gel coat
The special-purpose grease of layer;The thickness of glass fibre knitting layer 1 is set according to actual needs.
Wherein, fiberglass cloth 3 can be substituted by glass mat.
In the present embodiment, the thickness of fiberglass cloth is 0.18mm;Negative pressure pressure is 0.4MPa in step S06;Step
230 DEG C of baking temperature in rapid S08, cures 6 hours.
It is tested by the performance to rolling stock 3D cellular boards, test result is shown in Table 1.
Table 1:Rolling stock 3D cellular board performance parameters
Whole simple for process of the preparation methods of the present embodiment rolling stock 3D cellular boards, without specially issuing metal mold
Tool, production cost is low, suitable for mass production;The mechanical property and flame retardant property for the cellular board entirety being prepared are good, whole
Light weight, bending stiffness and intensity are high, meet current rolling stock material lightweight requirement, resistance to ag(e)ing, weather resistance
It is good.
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 (5)
1. a kind of preparation method of rolling stock 3D cellular boards, 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 glass fibre knitting layer (1) after cured gel coat;
Step S03 brushes novolac resin layer (2) on the glass fibre knitting layer (1), is then laid with fiberglass cloth
(3);
Step S04 in top layer laying release cloth, flow-guiding screen, leads pitch tube and exhaust tube, then spreads vacuum bag film, use butyl
Vacuum bag film is bonded together by adhesive tape, forms closed vacuum bag;
Step S05 seals the interface for leading pitch tube, exhaust tube and vacuum bag film with butyl rubber belt, by vacuum pump to described
Exhaust tube is evacuated, and gives the vacuum bag negative pressure, the vacuum bag is smoothed, checks whether gas leakage;
Step S06 starts to vacuumize to the vacuum bag, and negative pressure pressure is 0.3~0.5MPa;
Step S07 imports flame-retardant phenolic resin by the pitch tube auxiliary of leading, the phenolic resin is made equably to infiltrate to institute
State in glass fibre knitting layer (1) and the fiberglass cloth (3), phenolic resin be full of mold after close described in lead resin
Pipe;
Step S08 is put into bakery, keeps 220~240 DEG C of temperature, cures 5~7 hours;
Step S09 closes air pressure, pulls out and lead pitch tube, vacuum bag film of dismantling tears demoulding after phenolic resin is fully cured
Product is taken out in cloth and flow-guiding screen, demoulding;
Step S10, room temperature cooling, then carry out deburring and obtain cellular board finished product.
2. the preparation method of rolling stock 3D cellular boards as described in claim 1, which is characterized in that the glass fabric
Layer (3) is substituted by glass mat.
3. the preparation method of rolling stock 3D cellular boards as described in claim 1, which is characterized in that the glass fabric
The thickness of layer is 0.18mm.
4. the preparation method of rolling stock 3D cellular boards as described in claim 1, which is characterized in that in the step S06
Negative pressure pressure is 0.4MPa;230 DEG C of baking temperature in the step S08 cures 6 hours.
5. the preparation method of rolling stock 3D cellular boards as described in claim 1, which is characterized in that in the step S03
In, the laying number of plies of the novolac resin layer (2) and the fiberglass cloth (3) is set according to the thickness of cellular board.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109955501A (en) * | 2019-04-04 | 2019-07-02 | 北京卫星制造厂有限公司 | Recoverable airship large scale fans cambered surface thermal protection struc ture moulding technique |
CN110901099A (en) * | 2019-12-10 | 2020-03-24 | 常州曼淇威轨道交通设备有限公司 | Preparation method of phenolic resin plate for high-speed train |
CN110936635A (en) * | 2019-12-05 | 2020-03-31 | 南京航空航天大学 | Composite honeycomb component based on compression molding of flow guiding process and method |
CN113604949A (en) * | 2021-08-12 | 2021-11-05 | 东南大学 | Manufacturing method of glass fiber reinforced plastic structure based on knitted fabric |
CN114654759A (en) * | 2021-12-29 | 2022-06-24 | 中国华能集团清洁能源技术研究院有限公司 | Production process of novel movable flame-retardant workstation |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109955501A (en) * | 2019-04-04 | 2019-07-02 | 北京卫星制造厂有限公司 | Recoverable airship large scale fans cambered surface thermal protection struc ture moulding technique |
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CN110936635A (en) * | 2019-12-05 | 2020-03-31 | 南京航空航天大学 | Composite honeycomb component based on compression molding of flow guiding process and method |
CN110936635B (en) * | 2019-12-05 | 2020-10-30 | 南京航空航天大学 | Composite honeycomb component based on compression molding of flow guiding process and method |
CN110901099A (en) * | 2019-12-10 | 2020-03-24 | 常州曼淇威轨道交通设备有限公司 | Preparation method of phenolic resin plate for high-speed train |
CN113604949A (en) * | 2021-08-12 | 2021-11-05 | 东南大学 | Manufacturing method of glass fiber reinforced plastic structure based on knitted fabric |
CN114654759A (en) * | 2021-12-29 | 2022-06-24 | 中国华能集团清洁能源技术研究院有限公司 | Production process of novel movable flame-retardant workstation |
CN114654759B (en) * | 2021-12-29 | 2023-07-28 | 中国华能集团清洁能源技术研究院有限公司 | Production process of movable flame-retardant workstation |
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