CN110053279A - A kind of epoxy heating fiber reinforced plastic mold and preparation method thereof - Google Patents
A kind of epoxy heating fiber reinforced plastic mold and preparation method thereof Download PDFInfo
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- CN110053279A CN110053279A CN201910467926.4A CN201910467926A CN110053279A CN 110053279 A CN110053279 A CN 110053279A CN 201910467926 A CN201910467926 A CN 201910467926A CN 110053279 A CN110053279 A CN 110053279A
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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
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
-
- 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
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
-
- 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
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides one kind for epoxy heating fiber reinforced plastic mold and preparation method thereof, and preparation method is the following steps are included: master mold production, the structure fabrication of mold, the production of gel coating resin, the production of surface layer layer, heating layer production, structural reinforcement production, insulating layer production, skeletal support production, temperature control system production, the production of silica gel face mould；Epoxy heating mould have high heat distortion temperature 120 DEG C or more, low-shrinkage and be provided simultaneously with uniformly heated requirement, solve the technical issues of hot-spot causes damage to mold.
Description
Technical field:
The invention belongs to glass reinforced plastic manufacturing fields, and in particular to a kind of epoxy heating fiber reinforced plastic mold and preparation method thereof.
Background technique:
As auto industry and terminal client are to the other high-end fields of higher and higher and composite material of automotive needs
To the high request of glass hardness of steel and deformation etc., the such high request for needing to solve at least needs to solve in terms of three
Certainly: first, the pitch prob-lems of lower shrinkage；Second, moulding process problem；Third, curing degree problem when demoulding.
Solve the problems, such as that three presented above solve firstly the need of since mold, be most able to satisfy above-mentioned condition certainly can
It can be metal die, but due to high manufacturing cost, the product that we contact at present does not meet the batch micro operations of metal die
It is required that put aside, and in view of in current enterprise's cost of manufacture, most ideal also most realistic is epoxy heated mould
Tool.
Epoxy heating mould must have high heat distortion temperature (120 degree or more), low-shrinkage and have uniformly heated
It is required that current glass reinforced plastic largely uses hand pasting forming, also do not have heating function, and hand pasting forming resin content is high, receives
Shrinkage is excessive, thus epoxy heat fiber reinforced plastic mold in moulding process for need using vacuum infusion molding.But existing
Technology has, and does not have the fiber reinforced plastic mold of mature epoxy heating also.
Summary of the invention:
In view of the deficiencies in the prior art, the present invention provides a kind of epoxy heating fiber reinforced plastic mold and its preparation side
Method；Under the premise of reducing heating fiber reinforced plastic mold manufacturing cost, solves current glass-fibre reinforced resin based composites mold and add
The technical issues of hot-spot existing for hot mode causes damage to mold.
To achieve the above object, technical solution of the present invention are as follows:
A kind of epoxy heating fiber reinforced plastic mold, including mutually matched die ontology, die ontology upper surface attach silica gel
Mold, wherein heating device is equipped in die ontology, silica gel mould includes mutually matched cavity plate and punch-pin, and cavity plate is attached at
Die ontology upper surface, punch-pin are arranged above cavity plate, and vacuum chamber is formed between cavity plate and punch-pin, and punch-pin is equipped with mold sealing edge
Edge ends slot, mold seal groove, vacuum suction slot.
Further, mold sealing margin ends slot: this slot pitch flange periphery 50mm, groove width 10mm, groove depth 5mm, slot is in glass
In glass steel mold；Mold seal groove: this slot pitch flange periphery 100mm, groove width 8mm, groove depth 10mm, bottom increase copper pumping
Mouthful, bleeding point is depending on mold size, and slot is on fiber reinforced plastic mold；Vacuum suction slot: this slot pitch isolated edge 150mm, slot exist
On silica gel, should have bleeding point, bleeding point can use adapter of plastic as modelling interface.
Further, a kind of preparation method of epoxy heating fiber reinforced plastic mold, characterized by the following steps:
The production of 1.1 master molds
1.1-1, using with the consistent modelling master mold of glass fiber reinforced plastics product shape, model outer increase help out
The flange periphery not less than 350mm, and guarantee smooth；
1.1-2, model surface accomplish fluently release wax, if flange periphery seam, it is thick not less than 2mm glass reinforced plastic need to be pasted with hand
Degree, it is ensured that seam is not leaked；
1.1-3, polishing flat apart from flange periphery 20mm-30mm cleans up, and uses for subsequent vacuum Continuous pressing device for stereo-pattern；
1.1-4, model surface are not less than 8mm epoxy glass by vacuum technology requirement laying depth, and glass is routed to distance
At flange periphery 50mm-60mm；
1.1-5, model surface paste vacuum bag, are strict with and make by bag pressure vacuum technology, meet subsequent vacuumize
Demand；
1.1-6, perfusion vacuum systems epoxy resin, priming by vacuum epoxy systems control resin by the requirement of product and consolidate
The ratio of agent, perfusion finish, and after spontaneous curing, paving is not less than 18mm polyester form, vacuum technology molding, after spontaneous curing
The metallic framework to match with its shape is welded in model outer surface, and is pasted metallic framework and model with hand paste epoxy resin
Integrally；
1.1-7, it is not less than 3 hours in hothouse baking 80-120 degree, natural cooling is no less than 24 hours and demoulds, and makes after demoulding
At the cutting of intermediate die edge it is neat, cutting position is that flange stays cutting 270mm-290mm at；
1.1-8, intermediate die out-of-flatness position have pin hole position to fill up smooth using repairing putty, and it is clean to polish；
1.1-9, the easy to polish primer of epoxy is sprayed in intermediate mould surface, roughly grinds and polishes；
1.1-10, bloom gel coat is sprayed in intermediate mould surface, fine grinding simultaneously polishes；
1.1-11, on the flange of middle part mould, away from product edge 150-180mm or so place, border fill up 5mm thickness,
The batten of 10mm wide fills up 8-10mm thickness, the batten of wide 6-8mm, the above two specifications wood away from product edge 100-130mm or so place
Item needs border to be paved with entire die edge, and above two notches are subsequent to be needed to demould, so needing fairing when production, and is conducive to
Demoulding；
1.1-12, intermediate die external coating release agent are subsequent demoulding use, complete the production of master mold；
1.2 Mold Making
It tests to master mold
1.2-1, on flange, at product edge 200-250mm, outlet using adhesive tape paste protection, side
Edge scribing line patch is neat, has no obvious gap；
1.2-2, master mold are cleaned out, into paint spray booth after blow clean die surface dust；
1.2-3, gel coat allotment, the gel coat used are as follows: spraying epoxy gel coat, coating thickness 0.4mm thickness or so, spraying are equal
Even, sagging, not show-through, without obvious water clock；
After 1.2-4, spraying gel coat are no less than 8 hours, barn 80-120 degree is promoted to toast at least 3 hours, after natural cooling,
Corase grinding removes dust；Start first time laying；
1.2-5, de-protected adhesive tape is torn, using elevated-temperature seal adhesive tape by vacuum technology requirement Continuous pressing device for stereo-pattern, glued
Vacuum bag is pasted, production is strict with by bag pressure vacuum technology, meets subsequent the needs of vacuumizing；
The priming by vacuum epoxy systems that 1.2-6, surface layer use, by the ratio of requirement the control resin and curing agent of product；
1.2-7, resin infusion finish, and mold promotes the baking of barn 80-120 degree no less than 3 hours, after natural cooling, into
Row is laid with heating tape；
1.2-8, heating tape are laid with spacing as 50mm or so, and pre-buried multiple temperature inductors, the position of each inductor
Among 2 heating tapes, it is ensured that spacing is almost the same, and all heating tapes are divided into equal parts according to the position of inductor, is used in combination
High-temperature cable is simultaneously unified into multi-cable line and sensor one-to-one correspondence access temperature control box.It is arranged according to drawing；
1.2-9, heating tape and temperature sensor are fixed with epoxy putty, and ensure periphery rounding off, under being convenient for
One step vacuum forming；
1.2-10, after putty solidification after, carry out enhancement layer laying, laying be not less than 6mm epoxy glass, filled using vacuum
Epoxy systems are infused, by the ratio of requirement the control resin and curing agent of product；
1.2-11, resin infusion finish, and mold promotes the baking of barn 80-120 degree no less than 3 hours, after natural cooling, into
Row is laid with insulating layer；
1.2-12, insulating layer are laid with are as follows: and continuous felt+Ba Shamu+flow-guiding screen of the one layer of grammes per square metre greater than 300+not less than 2mm's
Fiber glass epoxy use priming by vacuum, by product requirement control resin and curing agent ratio, moulding process using vacuum at
Type；
1.2-13, resin infusion finish, and mold promotes the baking of barn 80-120 degree no less than 3 hours, after natural cooling, into
Row carcasing；
1.2-14, carcasing need to meet rigidity requirement, and when welding needs to cushion welding using fire blanket, to prevent burn
Mold, specific welding structure are welded according to drawing, paste resin using epoxy hand after welding, and epoxy glass pastes solid
It is fixed, spontaneous curing；
1.2-15, heating tape is connected, is adjusted to temperature not less than 100 degree, heating is no less than 3 hours, natural cooling；
1.2-16, demoulding；
The production of 1.3 silica gel moulds
1.3-1 silica gel face mould designs
Silica gel face mould must have all functions of vacuum bag, have mold sealing margin cut-off slot, mold seal groove, tree
Rouge perfusion channel；
The production of 1.3-2 silica gel mould
The shape of 1.3-2-1, final products are laid with the cloth with actual product consistency of thickness on mold, try not to take
It connects, vacuumizes；
1.3-2-2, skin patching are smooth, spray-applied primer, polish, waxing；
1.3-2-3, away from product edge 30-50mm install 12-15mm diameter round tube, pipe two sides smooth transition, take out
Port position makes of exhaust tube and is open；
1.3-2-4,4-5mm thickness is filled out with wax disk(-sc) in original peripheral groove bottom for filling up batten formation, is used for air extracting seal
With；
The double of one piece of thickness 5-6mm, high 40-50mm are fixed in 1.3-2-5, in a mold portion, the i.e. place in resin guide channel
Face light glass epoxy or plastic plate, resin inlet position make of exhaust tube and are open, be fixed among plate；
1.3-2-6, allotment mold silica gel, deploy in proportion, after allotment uniformly, are uniformly painted on die surface with hairbrush,
Then thickness 1.5-2mm places the absorbent gauze for being not more than 500mm, after placement is smooth, then brushes the silica gel not less than 1mm thickness,
Deng rear demoulding in solidification 24 hours or more；
1.3-2-7, mold bottom install silica gel sealing bleeding point, install connector corresponding with exhaust tube, periphery gap
Sealing is filled up with the structure glue for bonding firm.
Further, specific in the making step of 1.1 master molds in above-mentioned technique:
1.1-1, using with the consistent modelling master mold of glass fiber reinforced plastics product shape, model outward flange side need be widened to
350mm guarantees smooth；
1.1-2, release wax is accomplished fluently, flange periphery first pastes 2 layers that width is 450mm due to there is interface, with hand paste epoxy
The 225 high-strength cloth of+1 layer 200 of chopped mat, surface have resin-rich layer, it is ensured that seam is not leaked；
1.1-3, it is polished flat apart from flange periphery 20m-30mm with 240 sand paper and is cleaned up with acetone, be used for vacuum
Adhesive tape of paste uses；
1.1-4, model surface are laid with 8mm epoxy glass by vacuum technology requirement, and glass is routed at edge 60mm；
1.1-5, model surface paste vacuum bag, are strict with production by bag pressure vacuum technology, and corner centainly needs to be compacted,
Pressure is kept for 30 minutes without decompression phenomenon, and pressure maintaining is vacuum special process, needs strict implement, non-pressure maintaining success, under not allowing
Resin is perfused in one step；
1.1-6, perfusion vacuum systems epoxy resin, priming by vacuum epoxy systems, strict control resin allotment ratio 3:1,
After perfusion, after spontaneous curing, 18mm polyester form, laying are as follows: continuous felt+18mm polyester form+Ba Shamu+3mm ring are spread
Oxygen glass+flow-guiding screen+continuous felt, vacuum technology molding, the welded framework after spontaneous curing, and bone is pasted with hand paste epoxy resin
Frame；
1.1-7, it demoulds within 24 hours after 80 degree of 3 hours natural coolings of hothouse baking, edge cutting is neat, and cutting position is
Flange is stayed and is cut at 270mm；
1.1-8, out-of-flatness position have pin hole position to fill up smooth using repairing putty, and it is clean to polish；
1.1-9, the spraying easy to polish primer of epoxy, 1500 sand paper of water mill, polishing；
1.1-10, spraying bloom gel coat, water mill to 2000 sand paper, polishing；
1.1-11, on flange, at product edge 150mm, border fill up 5mm thickness, the batten of 10mm wide, away from product
10mm thickness, the batten of wide 8mm are filled up at edge 100mm, the above 2 specification batten needs border to be paved with entire die edge, and above two
A notch is subsequent to be needed to demould, so needing fairing when production, and is conducive to demould；
1.1-12, brushing release agent are brushed 8 times by primary progress in 15 minutes, are had no detail wax trace.
Further, in above-mentioned technique, in the making step of 1.2 Mold Makings:
It tests to master mold
1.2-1, on flange, at product edge 220mm, outlet pastes protection using adhesive tape, and edge is drawn
Line patch is neat, has no obvious gap；
1.2-2, mold cleaning are clean, into paint spray booth after blow clean die surface dust；
1.2-3, gel coat allotment, the gel coat used are as follows: spraying epoxy gel coat, coating thickness 0.4mm thickness or so, spraying are equal
Even, sagging, not show-through, without obvious water clock；
1.2-4, after spraying gel coat 8 hours, 80 degree of barn are promoted to toast 3 hours, after natural cooling, the polishing of 240# sand paper is thick
It is rough, remove dust；Start first time laying, ply angles are as follows: 0.8mm thickness carbon fiber+6mm thickness epoxy glass+0.8mm carbon fiber；
1.2-5, de-protected adhesive tape is torn, using elevated-temperature seal adhesive tape by vacuum technology requirement adhesive tape of paste, sticked
Vacuum bag is pasted, and ensures that next step resin guide can be carried out without pressure release in 30 minutes；
The priming by vacuum epoxy systems that 1.2-6, surface layer use, modulation ratio 4:1；
1.2-7, resin infusion finish, and mold promotes 80 degree of barn to toast 3 hours, after natural cooling, carry out laying heating
Band；
1.2-8, heating tape are laid with spacing as 50mm, and pre-buried 5 temperature inductors, and the position of each inductor is at 2
Among heating tape, it is ensured that 5 almost the same, and all heating tapes are divided into 5 parts according to the position of inductor, and simultaneously with high-temperature cable
It is unified into 5 cables and sensor corresponds access temperature control box；
1.2-9, heating tape and temperature sensor are fixed with epoxy putty, and ensure periphery rounding off, under being convenient for
One step vacuum forming；
1.2-10, after putty solidification after, carry out enhancement layer laying, laying be 6mm epoxy glass, use priming by vacuum epoxy
System, ratio 4:1.Moulding process uses vacuum forming；
1.2-11, resin infusion finish, and mold promotes 80 degree of barn to toast 3 hours, after natural cooling, carry out laying heat preservation
Layer；
1.2-12, insulating layer are laid with are as follows: 1 layer of continuous felt+Ba Shamu++ 1 layer of flow-guiding screen+1 layer of continuous felt epoxy glass uses
Priming by vacuum epoxy systems, ratio 4:1.Moulding process uses vacuum forming；
1.2-13, resin infusion finish, and mold promotes 80 degree of barn to toast 3 hours, after natural cooling, carry out skeleton system
Make；
1.2-14, carcasing need to meet rigidity requirement, and when welding needs to cushion welding using fire blanket, to prevent burn
Mold, specific welding structure are welded according to drawing.Resin is pasted using epoxy hand after welding, epoxy glass pastes solid
It is fixed, spontaneous curing；
1.2-15, heating tape is connected, is adjusted to 100 degree of temperature, heated 3 hours, natural cooling.
Further, in above-mentioned technique, in the making step of 1.3 silica gel moulds:
1.3-1 silica gel face mould designs
Silica gel face mould must have all functions of vacuum bag, have sealant trough of belt, vacuum pumping channel, resin infusion
Channel；
1.3-1-1, mold sealing margin end slot: this slot pitch flange periphery 50mm, groove width 10mm, groove depth 5mm, slot is in glass
In glass steel mold；
1.3-1-2, mold seal groove: this slot pitch flange periphery 100mm, groove width 8mm, groove depth 10mm, bottom increase copper
Bleeding point, bleeding point is depending on mold size, and slot is on fiber reinforced plastic mold；
1.3-1-3, vacuum suction slot: this slot is according to our bellows+big little makings of blue air-breathing cloth, apart from edge
150mm, slot on silica gel, should have bleeding point, and bleeding point can use adapter of plastic as modelling interface；
Resin infusion channel: subchannel is made by 3mm, uses for placing T-type flow-guiding screen, should have resin infusion mouth,
Model can be made with plastic interface；
1.3-1-4, silica gel face mould are by 2mm silica gel+absorbent gauze+1mm silica gel group；
The production of 1.3-2 silica gel mould
The shape of 1.3-2-1, final products are laid with the cloth of 3mm on mold, try not to overlap, vacuumize；
1.3-2-2, skin patching are smooth, spray-applied primer, polish, waxing；
1.3-2-3, away from product edge 50mm install 12mm diameter round tube, pipe two sides smooth transition, bleeding point position
It sets to make of exhaust tube and be open；
1.3-2-4,4mm thickness is filled out with wax disk(-sc) in the peripheral groove bottom of 8X10, is used for air extracting seal；
The dual light glass of one piece of thickness 5mm, high 50mm are fixed in 1.3-2-5, in a mold portion, the i.e. place in resin guide channel
Glass steel plate or plastic plate, resin inlet position make of exhaust tube and are open, be fixed among plate；
1.3-2-6, allotment mold silica gel, two-component in illustrate on bucket ratio deploy, allotment uniformly after, uniformly applied with hairbrush
It brushes in die surface, thickness 2mm, then places the absorbent gauze for being not more than 500mm, after placement is smooth, then brush the silicon of 1mm thickness
Glue demoulds after waiting solidification 24 hours；
1.3-2-7, mold bottom install silica gel sealing bleeding point, and using copper sleeve, periphery gap is filled out with epoxy structural rubber
Full sealing.
By adopting the above technical scheme, the advantage of vacuum diversion technique of the present invention:
For solve die molding process and subsequent use process problem on deformation and strength problem, it is proposed that solution party
Case is to make glass reinforced plastic epoxy heating mould with vacuum forming technique, and compared with other techniques, we are advantage outstanding:
The fiber reinforced plastic mold of vacuum forming technique production, forming process environmental protection, the compaction rate of product is much higher than hand paste etc.
Other moulding process.The stretching of product, bending, compressive strength index are much higher than the moulding process such as hand paste.Resin content is far below
Hand pastes mold, and shrinkage ratio hand paste mold is greatly reduced under equal conditions.
Higher quality product: resin infiltration glass under vacuum conditions, the bubble compared with conventional fabrication processes, in product
Seldom.There are extra resins in system, and resulting product weight is lighter, and intensity is higher, quality is stable.
Less resin loss: using vacuum technology, the dosage of resin can accurate budget, hand paste or spray technology are come
It says, can be difficult to control because of the variability of operator.Vacuum can make the loss of resin reach minimum.
Resin distribution is uniform: for an oil tank liner product, the pressure that the vacuum of different piece generates is consistent
, therefore resin reaches unanimity to the wetting velocity and content of glass.This product stable for quality requirement is being to close very much
Key.
Thickness control is accurate: can preferably control the thickness of product.
Flexible Production Time: common issue is that time factor in traditional hand paste process.Many resins are in a reservoir
Operating time is about 30 minutes.But some big engineerings time-consuming more than 2 hours mostly.However vacuum perfusion process, it provides
Almost limitless Production Time.Material is still dry when due to adding vacuum pressure, so not having the time before resin pours into
Limitation.After being laid with vacuum bag, there is time enough carefully to find out air leak position so as to patience.If some unfavorable factors are not
It is good to exclude, it also only needs to remove vacuum to adjust.There is no time restriction before determining to start that resin is perfused.Before this, can
Constantly it is adjusted.
Detailed description of the invention:
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the sectional schematic diagram of present invention preparation heating fiber reinforced plastic mold process；
Fig. 2 is that fiber reinforced plastic mold heating tape schematic diagram is heated in the present invention.
Specific embodiment:
In order to be clearer and more clear technical problems, technical solutions and advantages to be solved, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
It as Figure 1-Figure 2, is the embodiment of the present invention.
A kind of epoxy heating fiber reinforced plastic mold, including mutually matched die ontology 6, die ontology upper surface attach silica gel
Mold, wherein heating device 7 is equipped in die ontology 6, silica gel mould includes mutually matched cavity plate 5 and punch-pin 1, and cavity plate 5 pastes
6 upper surface of die ontology is invested, punch-pin 1 is arranged above cavity plate 5, forms vacuum chamber 8 between cavity plate 5 and punch-pin 1, sets on punch-pin 1
There is mold sealing margin to end slot 2, mold seal groove 3, vacuum suction slot 4.
In the manufacture craft of above-mentioned mold, it is illustrated by taking a specific embodiment as an example:
The production of 1.1 master molds:
1.1-1, using with the consistent modelling master mold of glass fiber reinforced plastics product shape, model outward flange side need be widened to
350mm guarantees smooth；
1.1-2, release wax is accomplished fluently, flange periphery first pastes 2 layers that width is 450mm due to there is interface, with hand paste epoxy
The 225 high-strength cloth of+1 layer 200 of chopped mat, surface have resin-rich layer, it is ensured that seam is not leaked；
1.1-3, it is polished flat apart from flange periphery 20m-30mm with 240 sand paper and is cleaned up with acetone, be used for vacuum
Adhesive tape of paste uses；
1.1-4, model surface are laid with 8mm epoxy glass by vacuum technology requirement, and glass is routed at edge 60mm；
1.1-5, model surface paste vacuum bag, are strict with production by bag pressure vacuum technology, and corner centainly needs to be compacted,
Pressure is kept for 30 minutes without decompression phenomenon, and pressure maintaining is vacuum special process, needs strict implement, non-pressure maintaining success, under not allowing
Resin is perfused in one step；
1.1-6, perfusion vacuum systems epoxy resin, priming by vacuum epoxy systems, strict control resin allotment ratio 3:1,
After perfusion, after spontaneous curing, 18mm polyester form, laying are as follows: continuous felt+18mm polyester form+Ba Shamu+3mm ring are spread
Oxygen glass+flow-guiding screen+continuous felt, vacuum technology molding, the welded framework after spontaneous curing, and bone is pasted with hand paste epoxy resin
Frame；
1.1-7, it demoulds within 24 hours after 80 degree of 3 hours natural coolings of hothouse baking, edge cutting is neat, and cutting position is
Flange is stayed and is cut at 270mm；
1.1-8, out-of-flatness position have pin hole position to fill up smooth using repairing putty, and it is clean to polish；
1.1-9, the spraying easy to polish primer of epoxy, 1500 sand paper of water mill, polishing；
1.1-10, spraying bloom gel coat, water mill to 2000 sand paper, polishing；
1.1-11, on flange, at product edge 150mm, border fill up 5mm thickness, the batten of 10mm wide, away from product
10mm thickness, the batten of wide 8mm are filled up at edge 100mm, the above 2 specification batten needs border to be paved with entire die edge, and above two
A notch is subsequent to be needed to demould, so needing fairing when production, and is conducive to demould；
1.1-12, brushing release agent are brushed 8 times by primary progress in 15 minutes, are had no detail wax trace.
1.2 Mold Makings:
It tests to master mold
1.2-1, on flange, at product edge 220mm, outlet pastes protection using adhesive tape, and edge is drawn
Line patch is neat, has no obvious gap；
1.2-2, mold cleaning are clean, into paint spray booth after blow clean die surface dust；
1.2-3, gel coat allotment, the gel coat used are as follows: spraying epoxy gel coat, coating thickness 0.4mm thickness or so, spraying are equal
Even, sagging, not show-through, without obvious water clock；
1.2-4, after spraying gel coat 8 hours, 80 degree of barn are promoted to toast 3 hours, after natural cooling, the polishing of 240# sand paper is thick
It is rough, remove dust；Start first time laying, ply angles are as follows: 0.8mm thickness carbon fiber+6mm thickness epoxy glass+0.8mm carbon fiber；
1.2-5, de-protected adhesive tape is torn, using elevated-temperature seal adhesive tape by vacuum technology requirement adhesive tape of paste, sticked
Vacuum bag is pasted, and ensures that next step resin guide can be carried out without pressure release in 30 minutes；
The priming by vacuum epoxy systems that 1.2-6, surface layer use, modulation ratio 4:1；
1.2-7, resin infusion finish, and mold promotes 80 degree of barn to toast 3 hours, after natural cooling, carry out laying heating
Band；
1.2-8, heating tape are laid with spacing as 50mm, and pre-buried 5 temperature inductors, and the position of each inductor is at 2
Among heating tape, it is ensured that 5 almost the same, and all heating tapes are divided into 5 parts according to the position of inductor, and simultaneously with high-temperature cable
It is unified into 5 cables and sensor corresponds access temperature control box；
1.2-9, heating tape and temperature sensor are fixed with epoxy putty, and ensure periphery rounding off, under being convenient for
One step vacuum forming；
1.2-10, after putty solidification after, carry out enhancement layer laying, laying be 6mm epoxy glass, use priming by vacuum epoxy
System, ratio 4:1.Moulding process uses vacuum forming；
1.2-11, resin infusion finish, and mold promotes 80 degree of barn to toast 3 hours, after natural cooling, carry out laying heat preservation
Layer；
1.2-12, insulating layer are laid with are as follows: 1 layer of continuous felt+Ba Shamu++ 1 layer of flow-guiding screen+1 layer of continuous felt epoxy glass uses
Priming by vacuum epoxy systems, ratio 4:1.Moulding process uses vacuum forming；
1.2-13, resin infusion finish, and mold promotes 80 degree of barn to toast 3 hours, after natural cooling, carry out skeleton system
Make；
1.2-14, carcasing need to meet rigidity requirement, and when welding needs to cushion welding using fire blanket, to prevent burn
Mold, specific welding structure are welded according to drawing.Resin is pasted using epoxy hand after welding, epoxy glass pastes solid
It is fixed, spontaneous curing；
1.2-15, heating tape is connected, is adjusted to 100 degree of temperature, heated 3 hours, natural cooling.
The production of 1.3 silica gel moulds:
1.3-1 silica gel face mould designs
Silica gel face mould must have all functions of vacuum bag, have sealant trough of belt, vacuum pumping channel, resin infusion
Channel；
1.3-1-1, mold sealing margin end slot: this slot pitch flange periphery 50mm, groove width 10mm, groove depth 5mm, slot is in glass
In glass steel mold；
1.3-1-2, mold seal groove: this slot pitch flange periphery 100mm, groove width 8mm, groove depth 10mm, bottom increase copper
Bleeding point, bleeding point is depending on mold size, and slot is on fiber reinforced plastic mold；
1.3-1-3, vacuum suction slot: this slot is according to our bellows+big little makings of blue air-breathing cloth, apart from edge
150mm, slot on silica gel, should have bleeding point, and bleeding point can use adapter of plastic as modelling interface；
Resin infusion channel: subchannel is made by 3mm, uses for placing T-type flow-guiding screen, should have resin infusion mouth,
Model can be made with plastic interface；
1.3-1-4, silica gel face mould are by 2mm silica gel+absorbent gauze+1mm silica gel group；
The production of 1.3-2 silica gel mould
The shape of 1.3-2-1, final products are laid with the cloth of 3mm on mold, try not to overlap, vacuumize；
1.3-2-2, skin patching are smooth, spray-applied primer, polish, waxing；
1.3-2-3, away from product edge 50mm install 12mm diameter round tube, pipe two sides smooth transition, bleeding point position
It sets to make of exhaust tube and be open；
1.3-2-4,4mm thickness is filled out with wax disk(-sc) in the peripheral groove bottom of 8X10, is used for air extracting seal；
The dual light glass of one piece of thickness 5mm, high 50mm are fixed in 1.3-2-5, in a mold portion, the i.e. place in resin guide channel
Glass steel plate or plastic plate, resin inlet position make of exhaust tube and are open, be fixed among plate；
1.3-2-6, allotment mold silica gel, two-component in illustrate on bucket ratio deploy, allotment uniformly after, uniformly applied with hairbrush
It brushes in die surface, thickness 2mm, then places the absorbent gauze for being not more than 500mm, after placement is smooth, then brush the silicon of 1mm thickness
Glue demoulds after waiting solidification 24 hours；
1.3-2-7, mold bottom install silica gel sealing bleeding point, and using copper sleeve, periphery gap is filled out with epoxy structural rubber
Full sealing.
The preparation method, wherein above-mentioned the step of preparing master mold further include:
Basic mode drawing is established using 3D software according to the design data of heating fiber reinforced plastic mold, is made according to basic mode drawing requirement
Basic mode is processed with numerically-controlled machine tool plant machinery, and successively using the hair on 80#, 120#, 240#, 600# sand paper polishing basic mode surface
Thorn forms former base mould；
Easy to polish mould gel coat is sprayed on former base mould, is solidified -5 hours 3 hours in 50 DEG C of greenhouses, to mould gel coat
It is sufficiently smooth flat using surface using 160#, 240#, 400#, 600# sand paper mould gel coat surface of successively polishing sufficiently after solidification
It is whole, form intermediate basic mode；
Release wax is uniformly coated on the mould gel coat surface of intermediate basic mode, and spraying mold gel coat again, in 25 DEG C of conditions
Lower solidification 30 minutes, forms above-mentioned basic mode.
The preparation method, wherein above-mentioned resin is lower shrinkage vinylite；Conductive powder be aluminium powder, alumina powder,
Silica powder, oxide powder and zinc, aluminum nitride powder, boron nitride powder, carborundum powder or graphite powder；Curing agent is methyl ethyl ketone peroxide, is added
Hot line road is carbon fiber heating wire.
The preparation method, wherein after above-mentioned steps C further include: pasted on above-mentioned heating fiber reinforced plastic mold skeleton
Molding jig heat insulation layer structure, and welded in its back adumbration intensification, ultimately form heating fiber reinforced plastic mold.
The preparation method, wherein above-mentioned conductive powder accounts for the 25% of material resin total weight, and ratio is excessive, then occupies
Multi-mould is crossed, intensity is reduced, occupies that very few conduction inequality is even or heat transfer efficiency decline, Comprehensive Experiment consider addition 25% most
It is good.
The preparation method, wherein above-mentioned curing agent accounts for the 1%-1.5% of material resin total weight.
The present invention provides a kind of for heating the preparation method of fiber reinforced plastic mold, the glass made using carbon fiber heating
The one third with a thickness of the mold thickness for using copper pipe thermal cycle mode of reinforced resin basic mode tool, significantly reduces mold
The raw material used are made, turnaround cycle of the overall weight of mold to mold in use are more reduced, because of carbon fiber
Dimension is heated to be Heated by Far-Infrared Radiation, to evade the low problem of resin thermal coefficient itself, uses the calandria of carbon fiber
System improves the thermal stability of mold heating, so that mold rate of warming is reached 10 DEG C/min, in addition the heating temperature of die surface
Uniformly, reach 0.3 DEG C/㎡ of temperature error, temperature 50 C is arranged in identical square metre of mold, and crude oil temperature heating systems need 60 minutes
Could heat uniformly, and heating fiber reinforced plastic mold prepared by the present invention only need 6 minutes can homogeneous heating, improve because add
The deformation of unbalanced stress caused by hot uneven reduces product because of fraction defective 90% caused by deformation, while solving glass
The reinforced resin based composites mold problem difficult in the heating of RTM technique.
Present invention reduces original heating method energy consumption problem, former heating method setting temperature 50 C needs just may be used for 60 minutes
Temperature is uniform, energy consumption 2.7kw.h*1=2.7KW energy consumption；Unit square rice mold heating setting temperature 50 C of the present invention heats up fast
Degree is 6 minutes, and energy consumption 0.7kw.h*0.1*2=0.14KW energy consumption, reaching identical heating effect energy consumption is only original heating side
/ 20th of formula.The heating voltage for the carbon fiber heating that the present invention uses is the electric heating of 24V direct current, uses safe voltage
(< 36V) heating, to reduce because of safety accident caused by electric leakage in industrial processes, use is safer.And carbon fiber
The fusing-off temperature of itself is up to 4000 DEG C, and the heating temperature that mold uses is 60 DEG C, to largely reduce because molten
Disconnected to damage caused by heating system, electric heating wire passes through long-term testing fatigue at present, verifies it and heats service life and reaches
100000 hours or more, it is far longer than the service life of existing mold.
The preferred embodiment of the present invention has shown and described in above description, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations, modification and
Environment, and can be changed within that scope of the inventive concept describe herein by the above teachings or related fields of technology or knowledge
It is dynamic.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be appended by the present invention
In scope of protection of the claims.
Claims (6)
1. a kind of epoxy heats fiber reinforced plastic mold, it is characterised in that: including mutually matched die ontology, die ontology upper surface
Attach silica gel mould, wherein be equipped with heating device in die ontology, silica gel mould includes mutually matched cavity plate and punch-pin, recessed
Mould is attached at die ontology upper surface, and punch-pin is arranged above cavity plate, and vacuum chamber is formed between cavity plate and punch-pin, and punch-pin is equipped with mould
Have sealing margin and ends slot, mold seal groove, vacuum suction slot.
2. a kind of epoxy as described in claim 1 heats fiber reinforced plastic mold, it is characterised in that: mold sealing margin ends slot:
This slot pitch flange periphery 50mm, groove width 10mm, groove depth 5mm, slot is on fiber reinforced plastic mold；Mold seal groove: this slot pitch flange
Edge 100mm, groove width 8mm, groove depth 10mm, bottom increase copper bleeding point, and bleeding point is depending on mold size, and slot is in glass reinforced plastic
On mold；Vacuum suction slot: this slot pitch isolated edge 150mm, slot on silica gel, should have bleeding point, and bleeding point can use plastics
Connector is as modelling interface.
3. a kind of preparation method of epoxy heating fiber reinforced plastic mold as claimed in claim 1 or 2, it is characterised in that: including such as
Lower step:
The production of 1.1 master molds
1.1-1, using with the consistent modelling master mold of glass fiber reinforced plastics product shape, model outer increase help out not
Flange periphery less than 350mm, and guarantee smooth；
1.1-2, model surface accomplish fluently release wax, if flange periphery seam, need to paste glass reinforced plastic with hand and be not less than 2mm thickness,
Ensure that seam is not leaked；
1.1-3, polishing flat apart from flange periphery 20mm-30mm cleans up, and uses for subsequent vacuum Continuous pressing device for stereo-pattern；
1.1-4, model surface are not less than 8mm epoxy glass by vacuum technology requirement laying depth, and glass is routed to apart from flange
At edge 50mm-60mm；
1.1-5, model surface paste vacuum bag, are strict with production by bag pressure vacuum technology, meet subsequent the needs of vacuumizing；
1.1-6, perfusion vacuum systems epoxy resin, priming by vacuum epoxy systems control resin and curing agent by the requirement of product
Ratio, perfusion finishes, after spontaneous curing, paving be not less than 18mm polyester form, vacuum technology molding, in mould after spontaneous curing
The metallic framework to match with its shape is welded in type outer surface, and metallic framework and model are pasted into one with hand paste epoxy resin
Body；
1.1-7, it is not less than 3 hours in hothouse baking 80-120 degree, natural cooling is no less than 24 hours and demoulds, manufactured after demoulding
The cutting of intermediate die edge is neat, and cutting position is that flange stays cutting at 270mm-290mm；
1.1-8, intermediate die out-of-flatness position have pin hole position to fill up smooth using repairing putty, and it is clean to polish；
1.1-9, the easy to polish primer of epoxy is sprayed in intermediate mould surface, roughly grinds and polishes；
1.1-10, bloom gel coat is sprayed in intermediate mould surface, fine grinding simultaneously polishes；
1.1-11, on the flange of middle part mould, away from product edge 150-180mm or so place, border fill up 5mm thickness, 10mm wide
Batten, fill up 8-10mm thickness away from product edge 100-130mm or so place, the batten of wide 6-8mm, the above two specifications batten needs week
Circle is paved with entire die edge, and above two notches are subsequent to be needed to demould, so needing fairing when production, and is conducive to demould；
1.1-12, intermediate die external coating release agent are subsequent demoulding use, complete the production of master mold；
1.2 Mold Making
It tests to master mold；
1.2-1, on flange, at product edge 200-250mm, outlet using adhesive tape paste protection, edge draw
Line patch is neat, has no obvious gap；
1.2-2, master mold are cleaned out, into paint spray booth after blow clean die surface dust；
1.2-3, gel coat allotment, the gel coat used are as follows: spraying epoxy gel coat, coating thickness 0.4mm thickness or so, spraying is uniform,
Not sagging, it is not show-through, without obvious water clock；
After 1.2-4, spraying gel coat are no less than 8 hours, barn 80-120 degree baking at least 3 hours is promoted, after natural cooling, slightly
Mill removes dust；Start first time laying；
1.2-5, de-protected adhesive tape is torn, using elevated-temperature seal adhesive tape by vacuum technology requirement Continuous pressing device for stereo-pattern, pasted true
Empty bag is strict with production by bag pressure vacuum technology, meets subsequent the needs of vacuumizing；
The priming by vacuum epoxy systems that 1.2-6, surface layer use, by the ratio of requirement the control resin and curing agent of product；
1.2-7, resin infusion finish, and mold promotes the baking of barn 80-120 degree no less than 3 hours, after natural cooling, are spread
If heating tape；
1.2-8, heating tape are laid with spacing as 50mm or so, and pre-buried multiple temperature inductors, and the position of each inductor is at 2
Among heating tape, it is ensured that spacing is almost the same, and all heating tapes are divided into equal parts according to the position of inductor, and use high-temperature electric
Cable is simultaneously unified into multi-cable line and sensor one-to-one correspondence access temperature control box.It is arranged according to drawing；
1.2-9, heating tape and temperature sensor are fixed with epoxy putty, and ensure periphery rounding off, convenient in next step
Vacuum forming；
1.2-10, after putty solidification after, carry out enhancement layer laying, laying be not less than 6mm epoxy glass, use priming by vacuum ring
Oxygen system, by the ratio of requirement the control resin and curing agent of product；
1.2-11, resin infusion finish, and mold promotes the baking of barn 80-120 degree no less than 3 hours, after natural cooling, are spread
If insulating layer；
1.2-12, insulating layer are laid with are as follows: the epoxy of the continuous felt+Ba Shamu+flow-guiding screen of one layer of grammes per square metre greater than 300+be not less than 2mm
Glass reinforced plastic uses priming by vacuum, and by the ratio of requirement the control resin and curing agent of product, moulding process uses vacuum forming；
1.2-13, resin infusion finish, and mold promotes the baking of barn 80-120 degree no less than 3 hours, after natural cooling, carry out bone
Frame production；
1.2-14, carcasing need to meet rigidity requirement, and when welding needs to cushion welding using fire blanket, to prevent mould of burning
Tool, specific welding structure are welded according to drawing, paste resin using epoxy hand after welding, and epoxy glass pastes fixation,
Spontaneous curing；
1.2-15, heating tape is connected, is adjusted to temperature not less than 100 degree, heating is no less than 3 hours, natural cooling；
1.2-16, demoulding；
The production of 1.3 silica gel moulds
1.3-1 silica gel face mould designs
Silica gel face mould must have all functions of vacuum bag, have mold sealing margin cut-off slot, mold seal groove, resin and fill
Infuse channel；
The production of 1.3-2 silica gel mould
The shape of 1.3-2-1, final products are laid with the cloth with actual product consistency of thickness on mold, try not to overlap, takes out
Vacuum；
1.3-2-2, skin patching are smooth, spray-applied primer, polish, waxing；
1.3-2-3, away from product edge 30-50mm install 12-15mm diameter round tube, pipe two sides smooth transition, bleeding point
Position makes of exhaust tube and is open；
1.3-2-4,4-5mm thickness is filled out with wax disk(-sc) in original peripheral groove bottom for filling up batten formation, is used for air extracting seal；
One piece of thickness 5-6mm, the dual light of high 40-50mm are fixed in 1.3-2-5, in a mold portion, the i.e. place in resin guide channel
Glass epoxy or plastic plate, resin inlet position make of exhaust tube and are open, be fixed among plate；
1.3-2-6, allotment mold silica gel, deploy in proportion, after allotment uniformly, are uniformly painted on die surface, thickness with hairbrush
Then 1.5-2mm places the absorbent gauze for being not more than 500mm, after placement is smooth, then brushes the silica gel not less than 1mm thickness, wait solid
Demoulding after change 24 hours or more；
1.3-2-7, mold bottom install silica gel sealing bleeding point, install connector corresponding with exhaust tube, and periphery gap is used viscous
It ties firm structure glue and fills up sealing.
4. as claimed in claim 3 a kind of for heating the preparation method of fiber reinforced plastic mold, it is characterised in that: above-mentioned technique
In, in the making step of 1.1 master molds:
1.1-1, using with the consistent modelling master mold of glass fiber reinforced plastics product shape, model outward flange side needs to be widened to 350mm,
Guarantee smooth；
1.1-2, release wax is accomplished fluently, flange periphery is first pasted 2 layer 225 that width is 450mm short due to there is interface with hand paste epoxy
+ 1 layer of 200 high-strength cloth of felt is cut, surface has resin-rich layer, it is ensured that seam is not leaked；
1.1-3, it is polished flat apart from flange periphery 20m-30mm with 240 sand paper and is cleaned up with acetone, pasted for vacuum
Adhesive tape uses；
1.1-4, model surface are laid with 8mm epoxy glass by vacuum technology requirement, and glass is routed at edge 60mm；
1.1-5, model surface paste vacuum bag, are strict with production by bag pressure vacuum technology, corner centainly needs to be compacted, pressure
Kept for 30 minutes without decompression phenomenon, pressure maintaining is vacuum special process, needs strict implement, and non-pressure maintaining success does not allow in next step
Resin is perfused；
1.1-6, perfusion vacuum systems epoxy resin, priming by vacuum epoxy systems, strict control resin allotment ratio 3:1, perfusion
After, after spontaneous curing, spread 18mm polyester form, laying are as follows: continuous felt+18mm polyester form+Ba Shamu+3mm epoxy glass
Fibre+flow-guiding screen+continuous felt, vacuum technology molding, the welded framework after spontaneous curing, and skeleton is pasted with hand paste epoxy resin；
1.1-7, it demoulds within 24 hours after 80 degree of 3 hours natural coolings of hothouse baking, edge cutting is neat, and cutting position is flange
It is cut at 270mm while staying；
1.1-8, out-of-flatness position have pin hole position to fill up smooth using repairing putty, and it is clean to polish；
1.1-9, the spraying easy to polish primer of epoxy, 1500 sand paper of water mill, polishing；
1.1-10, spraying bloom gel coat, water mill to 2000 sand paper, polishing；
1.1-11, on flange, at product edge 150mm, border fill up 5mm thickness, the batten of 10mm wide, away from product edge
10mm thickness is filled up at 100mm, the batten of wide 8mm, the above 2 specification batten needs border to be paved with entire die edge, above two slots
Mouth is subsequent to be needed to demould, so needing fairing when production, and is conducive to demould；
1.1-12, brushing release agent are brushed 8 times by primary progress in 15 minutes, are had no detail wax trace.
5. as claimed in claim 3 a kind of for heating the preparation method of fiber reinforced plastic mold, it is characterised in that: above-mentioned technique
In, in the making step of 1.2 Mold Makings:
It tests to master mold
1.2-1, on flange, at product edge 220mm, outlet pastes protection using adhesive tape, edge scribing line patch
Neatly, obvious gap is had no；
1.2-2, mold cleaning are clean, into paint spray booth after blow clean die surface dust；
1.2-3, gel coat allotment, the gel coat used are as follows: spraying epoxy gel coat, coating thickness 0.4mm thickness or so, spraying is uniform,
Not sagging, it is not show-through, without obvious water clock；
1.2-4, after spraying gel coat 8 hours, 80 degree of barn are promoted to toast 3 hours, after natural cooling, the polishing of 240# sand paper is coarse,
Except dust；Start first time laying, ply angles are as follows: 0.8mm thickness carbon fiber+6mm thickness epoxy glass+0.8mm carbon fiber；
1.2-5, de-protected adhesive tape is torn, using elevated-temperature seal adhesive tape by vacuum technology requirement adhesive tape of paste, pasted true
Empty bag, and ensure that next step resin guide can be carried out without pressure release in 30 minutes；
The priming by vacuum epoxy systems that 1.2-6, surface layer use, modulation ratio 4:1；
1.2-7, resin infusion finish, and mold promotes 80 degree of barn to toast 3 hours, after natural cooling, carry out laying heating tape；
It is 50mm that 1.2-8, heating tape, which are laid with spacing, and pre-buried 5 temperature inductors, the position of each inductor are heated at 2
Band is intermediate, it is ensured that 5 almost the same, and all heating tapes are divided into 5 parts according to the position of inductor, and with high-temperature cable and are unified into
5 cables and sensor correspond access temperature control box；
1.2-9, heating tape and temperature sensor are fixed with epoxy putty, and ensure periphery rounding off, convenient in next step
Vacuum forming；
1.2-10, after putty solidification after, carry out enhancement layer laying, laying be 6mm epoxy glass, use priming by vacuum epoxy body
System, ratio 4:1.Moulding process uses vacuum forming；
1.2-11, resin infusion finish, and mold promotes 80 degree of barn to toast 3 hours, after natural cooling, carry out laying insulating layer；
1.2-12, insulating layer are laid with are as follows: 1 layer of continuous felt+Ba Shamu++ 1 layer of flow-guiding screen+1 layer of continuous felt epoxy glass uses vacuum
Epoxy systems, ratio 4:1 is perfused.Moulding process uses vacuum forming；
1.2-13, resin infusion finish, and mold promotes 80 degree of barn to toast 3 hours, after natural cooling, carry out carcasing；
1.2-14, carcasing need to meet rigidity requirement, and when welding needs to cushion welding using fire blanket, to prevent mould of burning
Tool, specific welding structure are welded according to drawing.Resin is pasted using epoxy hand after welding, epoxy glass pastes fixation,
Spontaneous curing；
1.2-15, heating tape is connected, is adjusted to 100 degree of temperature, heated 3 hours, natural cooling.
6. as claimed in claim 3 a kind of for heating the preparation method of fiber reinforced plastic mold, it is characterised in that: above-mentioned technique
In, in the making step of 1.3 silica gel moulds:
1.3-1 silica gel face mould designs
Silica gel face mould must have all functions of vacuum bag, and it is logical to have sealant trough of belt, vacuum pumping channel, resin infusion
Road；
1.3-1-1, mold sealing margin end slot: this slot pitch flange periphery 50mm, groove width 10mm, groove depth 5mm, slot is in glass reinforced plastic
On mold；
1.3-1-2, mold seal groove: this slot pitch flange periphery 100mm, groove width 8mm, groove depth 10mm, bottom increase copper pumping
Mouthful, bleeding point is depending on mold size, and slot is on fiber reinforced plastic mold；
1.3-1-3, vacuum suction slot: this slot is according to our bellows+big little makings of blue air-breathing cloth, apart from edge 150mm, slot
On silica gel, should have bleeding point, bleeding point can use adapter of plastic as modelling interface；Resin infusion channel: secondary logical
Road is made by 3mm, uses for placing T-type flow-guiding screen, should have resin infusion mouth, can make model with plastic interface；
1.3-1-4 silica gel face mould is by 2mm silica gel+absorbent gauze+1mm silica gel group；
The production of 1.3-2 silica gel mould
The shape of 1.3-2-1, final products are laid with the cloth of 3mm on mold, try not to overlap, vacuumize；
1.3-2-2, skin patching are smooth, spray-applied primer, polish, waxing；
1.3-2-3, away from product edge 50mm install 12mm diameter round tube, pipe two sides smooth transition, bleeding point position use
Exhaust tube production opening；
1.3-2-4,4mm thickness is filled out with wax disk(-sc) in the peripheral groove bottom of 8X10, is used for air extracting seal；
The dual light glass reinforced plastic of one piece of thickness 5mm, high 50mm are fixed in 1.3-2-5, in a mold portion, the i.e. place in resin guide channel
Plate or plastic plate, resin inlet position make of exhaust tube and are open, be fixed among plate；
1.3-2-6, allotment mold silica gel, two-component in illustrate on bucket ratio deploy, allotment uniformly after, be uniformly painted on hairbrush
Then die surface, thickness 2mm place the absorbent gauze for being not more than 500mm, after placement is smooth, then brush the silica gel of 1mm thickness,
Deng solidification 24 hours after demould；
1.3-2-7, mold bottom install silica gel sealing bleeding point, and using copper sleeve, periphery gap is filled up close with epoxy structural rubber
Envelope.
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| CN110394998A (en) * | 2019-08-14 | 2019-11-01 | 张静 | One kind is for epoxy heating fiber reinforced plastic mold and preparation method thereof |
| CN110774615A (en) * | 2019-11-02 | 2020-02-11 | 六合峰（天津）科技股份有限公司 | Construction method for vacuum plastic-suction forming of glass fiber reinforced plastic theme prop |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029403A (en) * | 2014-06-27 | 2014-09-10 | 优利康达（天津）科技有限公司 | RTM (resin transfer molding) mold |
| CN106166811A (en) * | 2016-07-01 | 2016-11-30 | 宜兴市凯诚模具有限公司 | A kind of production technology of silica gel mould |
| CN108162429A (en) * | 2017-12-26 | 2018-06-15 | 青岛威奥时代新材料有限公司 | A kind of preparation method for being used to heat fiber reinforced plastic mold |
| CN108656579A (en) * | 2018-05-10 | 2018-10-16 | 田晓沙 | The manufacturing process of Tg120 degree or more of high-temperature composite material mold |
| CN210011372U (en) * | 2019-05-31 | 2020-02-04 | 厦门瀚盛游艇有限公司 | Epoxy heating glass steel mould |
-
2019
- 2019-05-31 CN CN201910467926.4A patent/CN110053279A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029403A (en) * | 2014-06-27 | 2014-09-10 | 优利康达（天津）科技有限公司 | RTM (resin transfer molding) mold |
| CN106166811A (en) * | 2016-07-01 | 2016-11-30 | 宜兴市凯诚模具有限公司 | A kind of production technology of silica gel mould |
| CN108162429A (en) * | 2017-12-26 | 2018-06-15 | 青岛威奥时代新材料有限公司 | A kind of preparation method for being used to heat fiber reinforced plastic mold |
| CN108656579A (en) * | 2018-05-10 | 2018-10-16 | 田晓沙 | The manufacturing process of Tg120 degree or more of high-temperature composite material mold |
| CN210011372U (en) * | 2019-05-31 | 2020-02-04 | 厦门瀚盛游艇有限公司 | Epoxy heating glass steel mould |
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| CN110394998A (en) * | 2019-08-14 | 2019-11-01 | 张静 | One kind is for epoxy heating fiber reinforced plastic mold and preparation method thereof |
| CN110774615A (en) * | 2019-11-02 | 2020-02-11 | 六合峰（天津）科技股份有限公司 | Construction method for vacuum plastic-suction forming of glass fiber reinforced plastic theme prop |
| CN110900905A (en) * | 2019-11-27 | 2020-03-24 | 上海金标文化创意股份有限公司 | Manufacturing method of glass fiber reinforced plastic suction mold |
| CN111136840A (en) * | 2019-12-04 | 2020-05-12 | 厦门创颖工艺品有限公司 | Method for manufacturing handicraft production mold |
| CN111136840B (en) * | 2019-12-04 | 2021-12-21 | 厦门创颖工艺品有限公司 | Method for manufacturing handicraft production mold |
| CN112275885A (en) * | 2020-09-21 | 2021-01-29 | 潍坊倍力汽车零部件有限公司 | Assembled internal high-pressure forming die |
| CN112776226A (en) * | 2020-11-30 | 2021-05-11 | 扬州麦斯通复合材料有限公司 | Large-size flat plate mold with automatic heating function and preparation method thereof |
| CN113085229A (en) * | 2021-04-22 | 2021-07-09 | 同济大学 | Device and method for repairing layered damage of carbon fiber reinforced thermosetting resin-based composite material |
| CN113788667A (en) * | 2021-08-31 | 2021-12-14 | 江苏唐盾材料科技有限公司 | Magnesium cementing material for hand-pasted glass fiber reinforced plastic mold |
| CN113844059A (en) * | 2021-10-14 | 2021-12-28 | 河北恒瑞复合材料有限公司 | Method for producing a fibre-reinforced plastic pipe section module and pipe section module |
| CN113844059B (en) * | 2021-10-14 | 2023-08-22 | 河北恒瑞复合材料有限公司 | Method for manufacturing fiber reinforced plastic pipe section module and pipe section module |
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