CN107116809A - A kind of carbon fibre composite racing body manufacture method and its sealing cavity block system - Google Patents
A kind of carbon fibre composite racing body manufacture method and its sealing cavity block system Download PDFInfo
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- CN107116809A CN107116809A CN201710287852.7A CN201710287852A CN107116809A CN 107116809 A CN107116809 A CN 107116809A CN 201710287852 A CN201710287852 A CN 201710287852A CN 107116809 A CN107116809 A CN 107116809A
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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
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/20—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding dies
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
Abstract
A kind of carbon fibre composite racing body manufacture method and its sealing cavity block system, the described method comprises the following steps：Formpiston makes, former, the shaping of carbon fibre composite vehicle body, outer surface processing and maintenance is turned over repairing, so that the vehicle body needed is made；The sealing cavity block system, including former, vacuum bag and injecting glue seat are turned over, the upper surface for turning over former is sequentially provided with releasing agent layer, first layer demoulding layer of cloth, carbon fibre cloth layer, second layer demoulding layer of cloth and water conservancy diversion stratum reticulare from inside to outside；The relative both sides of the vacuum bag are respectively provided with an injecting glue seat, and each injecting glue seat piece resin feeding helix tube of correspondence, and injecting glue seat is fixed on the middle part of resin feeding helix tube；The former that will entirely turn over from front to back of whole vacuum bag corrugationless or folding line is coated on interior, formation sealed environment.The beneficial effects of the invention are as follows：The manufacture method make it that carbon fibre composite racing body surface is smooth, light weight and with preferable mechanical property.
Description
Technical field
The present invention relates to a kind of carbon fibre composite racing body manufacture method and its sealing cavity block system.
Background technology
Nowadays motor sport, which more and more turns into the weight of racing car in important sports, motor sport, becomes energy
The no key factor got good grades, wherein target of the loss of weight of racing body into numerous fleets.The purpose of the present invention is
A kind of manufacture method for possessing preferable surface effect and light-weighted racing body is provided.The maximum of existing manufacture method lacks
Point is exactly rough surface, curved surface irregularity.
The content of the invention
The present invention utilizes carbon fibre composite for the defect of prior art there is provided one kind so that racing body surface
It is smooth, light weight and with preferable mechanical property and its sealing cavity block system.
A kind of carbon fibre composite racing body manufacture method of the present invention, comprises the following steps：
(1) formpiston is manufactured
1) mapping software addition frame configuration, i.e., export major axis vertical disconnected in the catia figures for designed car body profile
Face；
2) skeleton drawing is pressed 1:1 is printed upon on drawing and label, and PVC foam plate is then slightly fixed on double faced adhesive tape
On；
3) PVC foam plate is cut out coming according to drawing, splices PVC skeletons, extruded sheet is filled into skeleton, wherein squeezing
Mould plate profile have to be larger than PVC board profile, preferably relatively, reduce the man-hour of polishing extruded sheet, foam special glue fixing PVC
Foam framework and extruded sheet, after after the special adhesive curing of foam, is then polished according to shape, between two blocks of PVC foam plates
Seamlessly transit, net effect is preferred with outer surface smoother, obtain mould A；
4) in one layer of epoxy resin of mould A surface smears, prevent atomized ash from corroding extruded sheet, after after epoxy resin cure,
One layer of atomized ash sealing of hole is smeared, it is floating with scraper scraper plate, wait atomized ash to be polished after solidifying 3-4 hours with water-proof abrasive paper,
Mesh number is polished from low to high, obtains mould B；
5) with brush in mould B surface brushing first layer mould priming paint；
6) after after first layer mould solidifying priming paint 3-4 hours of mould B surface, using P80~P240 dry sands paper by slightly to
It is thin to carry out second of polishing, obtain mould C；
7) expose material part to mould C with a small amount of atomized ash to repair, obtain mould D；
8) after after the atomized ash solidification on mould D surfaces, in mould D external coating second layer mould priming paint, mould E is obtained；
9) mould E is carried out after third time polishing with P80~P500 sand paper is from coarse to fine, it is water-fast with P500~P800
Sand paper carries out water mill to it；
10) after water is dry, brushing bloom gel coat obtains mould F；
11) the 4th polishing is carried out to mould F with P80~P500 dry sand paper is from coarse to fine, then it is resistance to P500~P1200
Waterproof abrasive paper carries out water mill, obtains the formpiston of light；
(2) former is turned in manufacture：
1) male mold surfaces are pre-processed：First have to be surface-treated obtained formpiston before fiberglass former is made,
Alcohol wipe male mold surfaces are used, the spot of male mold surfaces is cleaned, clean formpiston is obtained, is defined as formpiston A；
2) chemical releasing agent is coated：Appropriate chemical releasing agent is occupied in cleaning with lint-free paper handkerchief after finishing, lint-free with a fritter
Cloth forms releasing agent layer, volatilize 5- after being coated per stratification releasing agent layer in the formpiston A chemical releasing agent of surface coated with multiple layer
After 30 seconds, unnecessary part is wiped with a fritter lint-free cloth；Need to cover 6 layers of releasing agent on a new formpiston, per stratification
The hardening time of at least 15 minutes is needed between releasing agent layer, at least needs to solidify a hour after last layer is painted with,
The mould with the chemical releasing agent of multilayer is obtained, formpiston B is defined as；
3) flange made is fixed on formpiston B edges with PUR, between pressure sensitive adhesive tape sealing PP cored slabs
Gap, obtain formpiston C；
4) with the gap of filling wax sealing flange and formpiston C, note drafting angle, obtain formpiston D；Wherein drafting angle control
System is at -30 °~+30 °；
5) in formpiston D external coating mould gel coat layer, wherein mould gel coat layer is coated in two times, mould gel coat layer it is total
Thickness control is in 0.8mm, wherein first layer brush 0.3-0.4mm uniform thickness, after solidification 2-3 hours of 20 DEG C of room temperature, then brush the
Two layers of 0.3-0.4mm thickness, at least solidify 4 hours at room temperature, place a night, obtain the mould with coating die gel coat, definition
For formpiston E；
6) in formpiston E external coatings glass fibre as coupling layer, ensure in painting process on the docile and obedient formpiston E of glass fibre
All turning so as to obtain the mould with coupling layer, is defined as formpiston F, it is necessary to pay special attention to the place of wedge angle；Coupling layer is made
With being to eliminate the impression caused by mould reinforcer, reduced by one layer of resin and glass to strengthen gel coat with reaching under gel coating resin
The alveolate risk in face, a preferable basic unit is provided for reinforcer；
7) in formpiston F external coating laminated resins：4 layers of glass fibre is at least spread, one layer of resin of brush be then on formpiston F
Paving layer of glass, one layer of resin correspondence layer of glass, the consumption of each layer of resin is to be coated with glass fibre thereon
4 times of quality, glass fibre is all coated with formpiston E；When solidification is started, color will be changed into dark brown from brown
Color, it is ensured that resin curing time is more than 24 hours；Wherein the part by weight of resin and glass fibre is 4:1, then solidify 24
Hour, former is turned in acquisition；
(3) carbon fibre composite vehicle body is manufactured：
1) minimum interval 15 minutes between the chemical releasing agent of multilayer, every layer are coated turning over female mold surfaces with lint-free cloth, finally
One layer be painted with after at least want 1 hour after, acquisition turn over former A；Chemical releasing agent is a kind of between mould and finished product
Functional materials, with chemical resistance, are not dissolved when the chemical composition with different resins is contacted, can make glass fiber product
It is easy to depart from and smooth pieces, used releasing agent is a kind of semipermanent releasing agent in this example, with preferably close
Envelope property and release property, it is adaptable to most resins and mold materials；
2) former A surfaces addition first layer demoulding layer of cloth is being turned over, this layer of release cloth is to seal the first layer in former, is one
The tearable cloth of layer, is torn after completing part, it is ensured that release cloth can cover carbon cloth, obtains turning over demoulding layer of cloth
Former, is defined as turning over former B；
3) place carbon cloth on demand on the release layer for turning over former B, and gently fixed with adhesive tape, obtain carbon-bearing
Scrim cloth turns over former, is defined as turning over former C；
4) second layer demoulding layer of cloth is added on the surface for turning over former C, this layer of demoulding layer of cloth, which is equally one layer, to be torn
Cloth, will be torn after completing part, it is ensured that release cloth can cover carbon cloth, and former D is turned in acquisition；
5) water conservancy diversion stratum reticulare is added：Flow-guiding screen is cut into as demoulding layer of cloth size or overlayed on after bigger shape and turns over the moon
Mould D is located at the release cloth layer surface on upper strata, and flow-guiding screen can ensure under full vacuum, still have gap to move resin stream；Lead
Drift net extends sufficiently into injecting glue seat, it is ensured that once vacuumizing, resin is freely extended through from vacuum tube and resin feeding helix tube
In the carbon fibre cloth layer for turning over former D, obtain covering water conservancy diversion stratum reticulare turns over former, is defined as turning over former E；
6) fixed helix tube：Resin feeding helix tube is a kind of plastic tube of spiral winding, be used to improve resin from true
Blank pipe (resin guide pipe) arrives the flowing of carbon cloth.Resin will be distributed along helix tube total length, by two resin feeding spirals
Pipe is separately fixed on the flow-guiding screen turned on respect to two sides of former E so that resin is fast along turn over former E one lateral opposite side
Speed is evenly distributed, it is ensured that resin enters from helix tube flows to flow-guiding screen；In more large area or more complicated female die system,
Consider that multiple injecting glue seats and helix tube import resin and be also very important；
7) positioning silica gel connector (also known as injecting glue seat)：The lower wing passage connection resin feeding helix tube of silica gel connector；
Resin is passed through into helix tube from the passage, it is ensured that resin flows to resin from vacuum tube (also known as resin guide pipe) by injecting glue seat
In feed auger pipe；Injecting glue seat is fixed on the middle part of resin feeding helix tube, presses injecting glue seat, makes resin feeding spiral
Pipe is mounted in injecting glue seat, and former E one side is turned over so that resin is evenly distributed to by helix tube in the bottom of injecting glue seat；
8) adhesive seal adhesive tape：Sealant tape is pasted onto the flange for turning over former E, and it is big extremely that one piece of ratio is turned over into former E areas
Few 50% vacuum bag film, since in corner, the paper at peel seal adhesive tape back presses vacuum bag film, adheres to exposure
Sealant tape on, vacuum bag film and sealant tape is sticked together, set up a sealed environment, whole process ensures vacuum
Whole turning over former E from front to back and covering for bag corrugationless or folding line, forms sealing cavity block system；In this step,
Ensuring the profile and profile of former has enough vacuum bag film parcels to be vital in this process.Vacuum bag is thin
Film lays incorrect so that there is any " bridge joint " can all cause final part resin excessive in former corner, reduction intensity and matter
Amount；If you complete vacuum bag sealing, but there is leakage, then be probably because caused by vacuum bag fold or folding；
9) connection and sealing resin feeding tank：All vacuum bag films are after all heap is folded, i.e., carbon cloth is sealed to very
In empty bag, scissors or the breach of pocket knife lane one are connected resin directly with one on the vacuum bag film of resin feeding joint
Mozzle, resin is swimmingly flowed from head tank by injecting glue seat in sealing cavity block system；
10) connection and sealing resin trap：Cut one section of sufficiently long vacuum tube, for connect resin trap and
That injecting glue seat on the injecting glue seat opposite of resin head tank is connected, vacuum tube one end is promoted close with sealant tape after vacuum bag
Envelope, the vacuum tube other end is connected to the import accessory (a black accessory) of resin trap, and vacuum tube is stretched into resin receipts
Storage inner bag (Disposable paper cup replacement), prevents resin from dripping on the outside of inner bag, then by import accessory is tightened clockwise, is formed close
Seal ring border；
11) connection vavuum pump and resin trap：Prepare two vacuum tubes, and connected two vacuum tubes with check-valves,
One end of the vacuum tube after connection is connected to the import accessory of resin trap, promotes vacuum tube to enter tree through import accessory
A small distance in fat collector, then by tightening accessory clockwise；The other end of vacuum tube is connected on vavuum pump；At this
During, the direction of check-valves is air flow vavuum pump, on the contrary then can not circulate；This vacuum tube will not during water conservancy diversion
It is damaged and (means that it can infinitely be reused)；
12) resin feeding line is clamped, that is, connects the vacuum tube of resin head tank and injecting glue seat：At the top of resin feeding tank
Pipe clamp is placed, wing nut is rotated and closes pipe clamp, it is ensured that created a sealed environment；
13) air is evacuated, vacuum bag is adjusted, it is ensured that vavuum pump connects correct voltage (240V alternating currents), suitably pours into
Pumping fluid, connects main power source, and surrounding as needed is moved and fixed behind vacuum bag film to suitable position, opens vacuum
Pump, when air is taken away out of vacuum bag, vacuum bag film, which is tightly attached to, turns over former E surfaces；
14) vacuum is tested：Open vavuum pump and evacuate vacuum bag, by having detected whether that pumping fluid is evaporated from pump
Come judge in vacuum bag whether perfect vacuum, and examined by corresponding vacuum " fall-down test " and determine whether vacuum bag film has
Leakage, it is necessary to be adjusted to vacuum bag, until being fully sealed, (close to very vacuum, vavuum pump is not discharged appoints vacuum meter
What pumping fluid steam) water conservancy diversion work can be taken up；The reading of vacuum meter is close to 100%.Due to the atmospheric pressure of change
With the gauge table of calibration, pointer may not accurately point to 100% vacuum, even if having reached vacuum.It is to be understood that when
Perfect vacuum is reached, most realistic method is to see vavuum pump, if having pumping fluid to be evaporated from pump；15) resin is calculated
And the correct consumption of curing agent, and as needed by the resin and curing agent of needs by being stirred evenly after correct proportions after, addition
Into resin feeding tank；The consumption of resin depends on the size and amount of reinforcement of product, and carbon cloth is more, and the resin used is got over
It is many；Curing agent chemically reacts with resin, forms netted space polymers, composite aggregate envelope reticulate body it
In, it is a kind of additive for making liquid resin become tough and tensile build solid, matching somebody with somebody for different types of resin and curing agent is compared
Example is different, and generally the mass ratio of resin and curing agent is 4：1
16) resin feeding pipe is opened, during vacuum pump operation, the pipe clamp of resin feeding pipe is gently turned on, when turning on nut
It can immediately see that resin is sucked into vacuum tube and starts water conservancy diversion, to ensure the importing of resin not by any limit when unclamping nut
System；Epoxy water conservancy diversion resin needs to be mixed evenly in certain proportion.As all resins, it is important that correct ratio
Example, accurately measures and is sufficiently mixed.A set of electronic scale is now needed to use to go to stir evenly the resin of correct proportions and curing agent.
Resin (being different from resin feeding tank) is stirred evenly in a reservoir, and then resin is poured into resin feeding tank.This will greatly reduce not
Agitating resin is inhaled into the risk of water conservancy diversion, and non-agitating resin is commonly attached to the edge of stirring container；
17) water conservancy diversion is monitored：During resin guide infiltration 60%~80%, the pipe clamp of resin feeding pipe is closed；Resin feeding tank
It is that the only viscosity of resin in itself prevents the resin upstream end of vacuum tube from becoming standard atmospheric pressure under atmospheric pressure effect.This
Meaning the vacuum bag of resin upstream end will not be tightened, and unnecessary resin will be accumulated；, when resin reaches resin trap,
Resin fibre ratio reaches a rational ratio；Clamped can cause slowly substantial amounts of resin be inhaled into resin trap (here it is
The purposes of resin trap).Resin feeding pipe is clamped too early or too late, is not big problem.If clamping resin feeding too early
Pipe, pipe clamp can be unclamped with the short time to be allowed more resins to flow into make up.In the case that clamping is too late, it can only just be received by resin
Storage.Note：If substantial amounts of Excess resin is inhaled into resin trap, then resin may start notable heat release, and
Start to smolder.In the event of such case, these resin heat releases can only be waited to calm down gradually.Here it is try not clamps tree too late
The main cause of fat feed pipe；
18) continue to supervise resin guide：Tight along with resin feeding pipe clamp, part water conservancy diversion completely now waits resin to consolidate
Change；Vavuum pump should keep working condition during cure cycle, until product is fully cured, obtain the car of carbon fibre composite
Body A；Due to excessive hybrid resin build up together can drastically heat release, the resin in the head tank of part need to be disposed；If needed
Accelerate resin solidification, former will be turned over and be put into the solidification of baking oven high temperature, or product is solidified at room temperature as high temperature
The alternative of solidification, both approaches have not significant impact for quality of item；
19) it is stripped：Vavuum pump answers continuous firing, and until part is fully cured, vacuum bag film is torn i.e. from former
The automobile body B of carbon fibre composite can be obtained；Just thrown away although sealant tape and flow-guiding screen are always finished, in some situations
Under, vacuum bag film and sealant tape can retain and recycle.Such as sealant tape can be used when next former is sealed
In the repairing of minute leaks；
(4) vehicle body outside surface is handled：
1) the depression atomized ash filling-in that there is surface after the covering demoulding of automobile body B；
2) polished with silicon carbide paper P80-P500 is from coarse to fine；
3) with filling out, eye is grey to mend dit；
4) with the P240-P1200 whole product surface of silicon carbide paper polishing；
5) spray painting application can obtain final products after the completion of polishing.
19 in step (3)) demoulding step it is as follows：
1. surrounding edge and the removal of the vehicle body A of carbon fibre composite vacuum bag film are cut；
2. the sealant tape at former edge is removed, quick wrench is maximally effective；
3. injecting glue seat is removed, the solidified resin being bonded on injecting glue seat is removed totally, these injecting glues seat is can to repeat to make
；
4. pull down and throw away flow-guiding screen；
5. release cloth and product are taken off from former together；
6. release cloth is carefully torn, product should not be damaged.
1 in step (4)) it is described maintenance comprise the following steps with reparation：
1) when crackle occurs in the outward appearance of automobile body B covering, it should carry out minute observation first, judge the depth of crackle
Whether carbon fibre composite is reached；
If 2) crackle is only occurred from atomized ash filling-in, painted again with filling out to polish after the grey filling-in of eye；
If 3) crackle occurs in carbon fibre composite, with filling out, eye is grey to be mended after carbon fiber cloth reinforcement inside body outer skin
Polished after flat reparation of painting again.
One end of the vacuum tube carries the inclination angle of 45° angle, then passes through one end with inclination angle of vacuum tube true
Aperture on empty bag film pushes in vacuum tube, promotes in the aperture at the top of injecting glue seat, by surrounding one around vacuum tube
Circle sealant tape is sealed to flexible pipe on vacuum bag, by firm, it is ensured that sealant tape sealed environment does not change.
The 13 of step (3)) in：The vacuum bag position for moving sealing former E if necessary is improper when needing to move, due to
The film of vacuum bag starts progressively to become tight, vacuum bag should not be vacuumized completely, temporarily turn off vavuum pump, and at this moment moving needs weight
The vacuum bag of new definition, it is necessary to place do a little folds, it is ensured that there is no the gap that vacuum bag is bridged on former；If vacuum bag is thin
Membrane area is not big enough, and it will be bridged in the certain point of former, is just repaired and is adjusted without the vacuum bag film that can be retightened
It is whole；In the event of this situation, it should stop, removing sack and sealant tape tries again again.
The 14 of step (3)) test in vacuum, when hermetically sealed, the sound of pump can be slightly changed, and the steam of pumping fluid can stop
Only it is evaporated from vavuum pump, on this node, carries out vacuum " fall-down test ", turn off vavuum pump, continue at least 20 minutes,
Then meticulous inspection vacuum meter；If index decreased, that is, determine that vacuum bag film has leakage, it is necessary to be adjusted；If no
It is fully sealed, firmly presses vacuum bag film and sealant tape, then carry out vacuum test, until is fully sealed.
The sealing cavity block system built according to a kind of carbon fibre composite racing body manufacture method of the present invention,
It is characterized in that：Including turning over former, vacuum bag and injecting glue seat, the upper surface for turning over former is sequentially provided with the demoulding from inside to outside
Oxidant layer, first layer demoulding layer of cloth, carbon fibre cloth layer, second layer demoulding layer of cloth and water conservancy diversion stratum reticulare；The vacuum bag it is relative two
While be respectively provided with injecting glue seat, and each injecting glue seat piece resin feeding helix tube of correspondence, injecting glue seat is fixed on resin feeding
The middle part of helix tube；Described resin feeding helix tube one end extends to the water conservancy diversion stratum reticulare for turning over former, and the other end passes through injecting glue
The lower wing passage of seat；One of injecting glue seat is connected as resin inlet with resin feeding tank；Another injecting glue seat is true as taking out
Eat dishes without rice or wine, connected by vacuum tube with resin trap sealing；The general from front to back of whole vacuum bag corrugationless or folding line is whole
Turn over former and be coated on interior, formation sealed environment.
The beneficial effects of the invention are as follows：The manufacture method make it that carbon fibre composite racing body surface is smooth, quality
Gently and with preferable mechanical property.
Brief description of the drawings
Fig. 1 is the carbon fibre composite vehicle body moulding process schematic diagram of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
A kind of carbon fibre composite racing body manufacture method of the present invention of embodiment 1, comprises the following steps：
(1) formpiston is manufactured
1) mapping software addition frame configuration, i.e., export major axis vertical disconnected in the catia figures for designed car body profile
Face；
2) skeleton drawing is pressed 1:1 is printed upon on drawing and label, and PVC foam plate is then slightly fixed on double faced adhesive tape
On；
3) PVC foam plate is cut out coming according to drawing, splices PVC skeletons, extruded sheet is filled into skeleton, wherein squeezing
Mould plate profile have to be larger than PVC board profile, preferably relatively, reduce the man-hour of polishing extruded sheet, foam special glue fixing PVC
Foam framework and extruded sheet, after after the special adhesive curing of foam, is then polished according to shape, between two blocks of PVC foam plates
Seamlessly transit, net effect is preferred with outer surface smoother, obtain mould A；
4) in one layer of epoxy resin of mould A surface smears, prevent atomized ash from corroding extruded sheet, after after epoxy resin cure,
One layer of atomized ash sealing of hole is smeared, it is floating with scraper scraper plate, wait atomized ash to be polished after solidifying 3-4 hours with water-proof abrasive paper,
Mesh number is polished from low to high, obtains mould B；
5) with brush in mould B surface brushing first layer mould priming paint；
6) after after first layer mould solidifying priming paint 3-4 hours of mould B surface, using P80~P240 dry sands paper by slightly to
It is thin to carry out second of polishing, obtain mould C；
7) expose material part to mould C with a small amount of atomized ash to repair, obtain mould D；
8) after after the atomized ash solidification on mould D surfaces, in mould D external coating second layer mould priming paint, mould E is obtained；
9) mould E is carried out after third time polishing with P80~P500 sand paper is from coarse to fine, it is water-fast with P500~P800
Sand paper carries out water mill to it；
10) after water is dry, brushing bloom gel coat obtains mould F；
11) the 4th polishing is carried out to mould F with P80~P500 dry sand paper is from coarse to fine, then it is resistance to P500~P1200
Waterproof abrasive paper carries out water mill, obtains the formpiston of light；
(2) former is turned in manufacture：
1) male mold surfaces are pre-processed：First have to be surface-treated obtained formpiston before fiberglass former is made,
Alcohol wipe male mold surfaces are used, the spot of male mold surfaces is cleaned, clean formpiston is obtained, is defined as formpiston A；
2) chemical releasing agent is coated：Appropriate chemical releasing agent is occupied in cleaning with lint-free paper handkerchief after finishing, lint-free with a fritter
Cloth forms releasing agent layer, volatilize 5- after being coated per stratification releasing agent layer in the formpiston A chemical releasing agent of surface coated with multiple layer
After 30 seconds, unnecessary part is wiped with a fritter lint-free cloth；Need to cover 6 layers of releasing agent on a new formpiston, per stratification
The hardening time of at least 15 minutes is needed between releasing agent layer, at least needs to solidify a hour after last layer is painted with,
The mould with the chemical releasing agent of multilayer is obtained, formpiston B is defined as；
3) flange made is fixed on formpiston B edges with PUR, between pressure sensitive adhesive tape sealing PP cored slabs
Gap, obtain formpiston C；
4) with the gap of filling wax sealing flange and formpiston C, note drafting angle, obtain formpiston D；Wherein drafting angle control
System is at -30 °~+30 °；
5) in formpiston D external coating mould gel coat layer, wherein mould gel coat layer is coated in two times, mould gel coat layer it is total
Thickness control is in 0.8mm, wherein first layer brush 0.3-0.4mm uniform thickness, after solidification 2-3 hours of 20 DEG C of room temperature, then brush the
Two layers of 0.3-0.4mm thickness, at least solidify 4 hours at room temperature, place a night, obtain the mould with coating die gel coat, definition
For formpiston E；
6) in formpiston E external coatings glass fibre as coupling layer, ensure in painting process on the docile and obedient formpiston E of glass fibre
All turning so as to obtain the mould with coupling layer, is defined as formpiston F, it is necessary to pay special attention to the place of wedge angle；Coupling layer is made
With being to eliminate the impression caused by mould reinforcer, reduced by one layer of resin and glass to strengthen gel coat with reaching under gel coating resin
The alveolate risk in face, a preferable basic unit is provided for reinforcer；
7) in formpiston F external coating laminated resins：4 layers of glass fibre is at least spread, one layer of resin of brush be then on formpiston F
Paving layer of glass, one layer of resin correspondence layer of glass, the consumption of each layer of resin is to be coated with glass fibre thereon
4 times of quality, glass fibre is all coated with formpiston E；；When solidification is started, color will be changed into dark brown from brown
Color, it is ensured that resin curing time is more than 24 hours；Wherein the part by weight of resin and glass fibre is 4:1, then solidify 24
Hour, former is turned in acquisition；
(3) carbon fibre composite vehicle body is manufactured：
1) minimum interval 15 minutes between the chemical releasing agent of multilayer, every layer are coated turning over female mold surfaces with lint-free cloth, finally
One layer be painted with after at least want 1 hour after, acquisition turn over former A；Chemical releasing agent is a kind of between mould and finished product
Functional materials, with chemical resistance, are not dissolved when the chemical composition with different resins is contacted, can make glass fiber product
It is easy to depart from and smooth pieces, used releasing agent is a kind of semipermanent releasing agent in this example, with preferably close
Envelope property and release property, it is adaptable to most resins and mold materials；
2) former A surfaces addition first layer demoulding layer of cloth is being turned over, this layer of release cloth is to seal the first layer in former, is one
The tearable cloth of layer, is torn after completing part, it is ensured that release cloth can cover carbon cloth, obtains turning over demoulding layer of cloth
Former, is defined as turning over former B；
3) place carbon cloth on demand on the release layer for turning over former B, and gently fixed with adhesive tape, obtain carbon-bearing
Scrim cloth turns over former, is defined as turning over former C；
4) second layer demoulding layer of cloth is added on the surface for turning over former C, this layer of demoulding layer of cloth, which is equally one layer, to be torn
Cloth, will be torn after completing part, it is ensured that release cloth can cover carbon cloth, and former D is turned in acquisition；
5) water conservancy diversion stratum reticulare is added：Flow-guiding screen is cut into as demoulding layer of cloth size or overlayed on after bigger shape and turns over the moon
Mould D is located at the release cloth layer surface on upper strata, and flow-guiding screen can ensure under full vacuum, still have gap to move resin stream；Lead
Drift net extends sufficiently into injecting glue seat, it is ensured that once vacuumizing, resin is freely extended through from vacuum tube and resin feeding helix tube
In the carbon fibre cloth layer for turning over former D, obtain covering water conservancy diversion stratum reticulare turns over former, is defined as turning over former E；
6) fixed helix tube：Resin feeding helix tube is a kind of plastic tube of spiral winding, be used to improve resin from true
Blank pipe (resin guide pipe) arrives the flowing of carbon cloth.Resin will be distributed along helix tube total length, by two resin feeding spirals
Pipe is separately fixed on the flow-guiding screen turned on respect to two sides of former E so that resin is fast along turn over former E one lateral opposite side
Speed is evenly distributed, it is ensured that resin enters from helix tube flows to flow-guiding screen；In more large area or more complicated female die system,
Consider that multiple injecting glue seats and helix tube import resin and be also very important；
7) positioning silica gel connector (also known as injecting glue seat)：The lower wing passage connection resin feeding helix tube of silica gel connector；
Resin is passed through into helix tube from the passage, it is ensured that resin flows to resin from vacuum tube (also known as resin guide pipe) by injecting glue seat
In feed auger pipe；Injecting glue seat is fixed on the middle part of resin feeding helix tube, presses injecting glue seat, makes resin feeding spiral
Pipe is mounted in injecting glue seat, and former E one side is turned over so that resin is evenly distributed to by helix tube in the bottom of injecting glue seat；
8) adhesive seal adhesive tape：Sealant tape is pasted onto the flange for turning over former E, and it is big extremely that one piece of ratio is turned over into former E areas
Few 50% vacuum bag film, since in corner, the paper at peel seal adhesive tape back presses vacuum bag film, adheres to exposure
Sealant tape on, vacuum bag film and sealant tape is sticked together, set up a sealed environment, whole process ensures vacuum
Whole turning over former E from front to back and covering for bag corrugationless or folding line, forms sealing cavity block system；In this step,
Ensuring the profile and profile of former has enough vacuum bag film parcels to be vital in this process.Vacuum bag is thin
Film lays incorrect so that there is any " bridge joint " can all cause final part resin excessive in former corner, reduction intensity and matter
Amount；If you complete vacuum bag sealing, but there is leakage, then be probably because caused by vacuum bag fold or folding；
9) connection and sealing resin feeding tank：All vacuum bag films are after all heap is folded, i.e., carbon cloth is sealed to very
In empty bag, scissors or the breach of pocket knife lane one are connected resin directly with one on the vacuum bag film of resin feeding joint
Mozzle, resin is swimmingly flowed from head tank by injecting glue seat in sealing cavity block system；
10) connection and sealing resin trap：Cut one section of sufficiently long vacuum tube, for connect resin trap and
That injecting glue seat on the injecting glue seat opposite of resin head tank is connected, vacuum tube one end is promoted close with sealant tape after vacuum bag
Envelope, the vacuum tube other end is connected to the import accessory (a black accessory) of resin trap, and vacuum tube is stretched into resin receipts
Storage inner bag (Disposable paper cup replacement), prevents resin from dripping on the outside of inner bag, then by import accessory is tightened clockwise, is formed close
Seal ring border；
11) connection vavuum pump and resin trap：Prepare two vacuum tubes, and connected two vacuum tubes with check-valves,
One end of the vacuum tube after connection is connected to the import accessory of resin trap, promotes vacuum tube to enter tree through import accessory
A small distance in fat collector, then by tightening accessory clockwise；The other end of vacuum tube is connected on vavuum pump；At this
During, the direction of check-valves is air flow vavuum pump, on the contrary then can not circulate；This vacuum tube will not during water conservancy diversion
It is damaged and (means that it can infinitely be reused)；
12) resin feeding line is clamped, that is, connects the vacuum tube of resin head tank and injecting glue seat：At the top of resin feeding tank
Pipe clamp is placed, wing nut is rotated and closes pipe clamp, it is ensured that created a sealed environment；
13) air is evacuated, vacuum bag is adjusted, it is ensured that vavuum pump connects correct voltage (240V alternating currents), suitably pours into
Pumping fluid, connects main power source, and surrounding as needed is moved and fixed behind vacuum bag film to suitable position, opens vacuum
Pump, when air is taken away out of vacuum bag, vacuum bag film, which is tightly attached to, turns over former E surfaces；
14) vacuum is tested：Open vavuum pump and evacuate vacuum bag, by having detected whether that pumping fluid is evaporated from pump
Come judge in vacuum bag whether perfect vacuum, and examined by corresponding vacuum " fall-down test " and determine whether vacuum bag film has
Leakage, it is necessary to be adjusted to vacuum bag, until being fully sealed, (close to very vacuum, vavuum pump is not discharged appoints vacuum meter
What pumping fluid steam) water conservancy diversion work can be taken up；The reading of vacuum meter is close to 100%.Due to the atmospheric pressure of change
With the gauge table of calibration, pointer may not accurately point to 100% vacuum, even if having reached vacuum.It is to be understood that when
Perfect vacuum is reached, most realistic method is to see vavuum pump, if having pumping fluid to be evaporated from pump；15) resin is calculated
And the correct consumption of curing agent, and as needed by the resin and curing agent of needs by being stirred evenly after correct proportions after, addition
Into resin feeding tank；The consumption of resin depends on the size and amount of reinforcement of product, and carbon cloth is more, and the resin used is got over
It is many；Curing agent chemically reacts with resin, forms netted space polymers, composite aggregate envelope reticulate body it
In, it is a kind of additive for making liquid resin become tough and tensile build solid, matching somebody with somebody for different types of resin and curing agent is compared
Example is different, and generally the mass ratio of resin and curing agent is 4：1；
16) resin feeding pipe is opened, during vacuum pump operation, the pipe clamp of resin feeding pipe is gently turned on, when turning on nut
It can immediately see that resin is sucked into vacuum tube and starts water conservancy diversion, to ensure the importing of resin not by any limit when unclamping nut
System；Epoxy water conservancy diversion resin needs to be mixed evenly in certain proportion.As all resins, it is important that correct ratio
Example, accurately measures and is sufficiently mixed.A set of electronic scale is now needed to use to go to stir evenly the resin of correct proportions and curing agent.
Resin (being different from resin feeding tank) is stirred evenly in a reservoir, and then resin is poured into resin feeding tank.This will greatly reduce not
Agitating resin is inhaled into the risk of water conservancy diversion, and non-agitating resin is commonly attached to the edge of stirring container；
17) water conservancy diversion is monitored：During resin guide infiltration 60%~80%, the pipe clamp of resin feeding pipe is closed；Resin feeding tank
It is that the only viscosity of resin in itself prevents the resin upstream end of vacuum tube from becoming standard atmospheric pressure under atmospheric pressure effect.This
Meaning the vacuum bag of resin upstream end will not be tightened, and unnecessary resin will be accumulated；, when resin reaches resin trap,
Resin fibre ratio reaches a rational ratio；Clamped can cause slowly substantial amounts of resin be inhaled into resin trap (here it is
The purposes of resin trap).Resin feeding pipe is clamped too early or too late, is not big problem.If clamping resin feeding too early
Pipe, pipe clamp can be unclamped with the short time to be allowed more resins to flow into make up.In the case that clamping is too late, it can only just be received by resin
Storage.Note：If substantial amounts of Excess resin is inhaled into resin trap, then resin may start notable heat release, and
Start to smolder.In the event of such case, these resin heat releases can only be waited to calm down gradually.Here it is try not clamps tree too late
The main cause of fat feed pipe；
18) continue to supervise resin guide：Tight along with resin feeding pipe clamp, part water conservancy diversion completely now waits resin to consolidate
Change；Vavuum pump should keep working condition during cure cycle, until product is fully cured, obtain the car of carbon fibre composite
Body A；Due to excessive hybrid resin build up together can drastically heat release, the resin in the head tank of part need to be disposed；If needed
Accelerate resin solidification, former will be turned over and be put into the solidification of baking oven high temperature, or product is solidified at room temperature as high temperature
The alternative of solidification, both approaches have not significant impact for quality of item；
19) it is stripped：Vavuum pump answers continuous firing, and until part is fully cured, vacuum bag film is torn i.e. from former
The automobile body B of carbon fibre composite can be obtained；Just thrown away although sealant tape and flow-guiding screen are always finished, in some situations
Under, vacuum bag film and sealant tape can retain and recycle.Such as sealant tape can be used when next former is sealed
In the repairing of minute leaks；
(4) vehicle body outside surface is handled：
1) the depression atomized ash filling-in that there is surface after the covering demoulding of automobile body B；
2) polished with silicon carbide paper P80-P500 is from coarse to fine；
3) with filling out, eye is grey to mend dit；
4) with the P240-P1200 whole product surface of silicon carbide paper polishing；
5) spray painting application can obtain final products after the completion of polishing.
19 in step (3)) demoulding step it is as follows：
1. surrounding edge and the removal of the vehicle body A of carbon fibre composite vacuum bag film are cut；
2. the sealant tape at former edge is removed, quick wrench is maximally effective；
3. injecting glue seat is removed, the solidified resin being bonded on injecting glue seat is removed totally, these injecting glues seat is can to repeat to make
；
4. pull down and throw away flow-guiding screen；
5. release cloth and product are taken off from former together；
6. release cloth is carefully torn, product should not be damaged.
1 in step (4)) it is described maintenance comprise the following steps with reparation：
1) when crackle occurs in the outward appearance of automobile body B covering, it should carry out minute observation first, judge the depth of crackle
Whether carbon fibre composite is reached；
If 2) crackle is only occurred from atomized ash filling-in, painted again with filling out to polish after the grey filling-in of eye；
If 3) crackle occurs in carbon fibre composite, with filling out, eye is grey to be mended after carbon fiber cloth reinforcement inside body outer skin
Polished after flat reparation of painting again.
One end of the vacuum tube carries the inclination angle of 45° angle, then passes through one end with inclination angle of vacuum tube true
Aperture on empty bag film pushes in vacuum tube, promotes in the aperture at the top of injecting glue seat, by surrounding one around vacuum tube
Circle sealant tape is sealed to flexible pipe on vacuum bag, by firm, it is ensured that sealant tape sealed environment does not change.
The 13 of step (3)) in：The vacuum bag position for moving sealing former E if necessary is improper when needing to move, due to
The film of vacuum bag starts progressively to become tight, vacuum bag should not be vacuumized completely, temporarily turn off vavuum pump, and at this moment moving needs weight
The vacuum bag of new definition, it is necessary to place do a little folds, it is ensured that there is no the gap that vacuum bag is bridged on former；If vacuum bag is thin
Membrane area is not big enough, and it will be bridged in the certain point of former, is just repaired and is adjusted without the vacuum bag film that can be retightened
It is whole；In the event of this situation, it should stop, removing sack and sealant tape tries again again.
The 14 of step (3)) test in vacuum, when hermetically sealed, the sound of pump can be slightly changed, and the steam of pumping fluid can stop
Only it is evaporated from vavuum pump, on this node, carries out vacuum " fall-down test ", turn off vavuum pump, continue at least 20 minutes,
Then meticulous inspection vacuum meter；If index decreased, that is, determine that vacuum bag film has leakage, it is necessary to be adjusted；If no
It is fully sealed, firmly presses vacuum bag film and sealant tape, then carry out vacuum test, until is fully sealed.
The sealing that a kind of carbon fibre composite racing body manufacture method of the embodiment 2 according to embodiment 1 is built
Cavity block system, including former 1, vacuum bag 2 and injecting glue seat 3 are turned over, the upper surface for turning over former 1 is sequentially provided with de- from inside to outside
Mould oxidant layer 11, first layer demoulding layer of cloth 12, carbon fibre cloth layer 13, second layer demoulding layer of cloth 14 and water conservancy diversion stratum reticulare 15；It is described true
The relative both sides of empty bag 2 are respectively provided with an injecting glue seat 21, and piece resin feeding helix tube 22 of correspondence of each injecting glue seat 21, note
Rubber base 21 is fixed on the middle part of resin feeding helix tube 22；Described one end of resin feeding helix tube 22, which is extended to, turns over former 1
Water conservancy diversion stratum reticulare 15, the other end through injecting glue seat 21 times wing passages；One of injecting glue seat 21 is used as resin inlet 211 and tree
Fat head tank is connected；Another injecting glue seat 21 is connected as vacuum orifice 212 by vacuum tube with resin trap sealing；It is whole
The former 1 that will entirely turn over from front to back of the individual corrugationless of vacuum bag 2 or folding line is coated on interior, formation sealed environment.
As shown in figure 1, arrow represents resin flow direction in figure, the injecting glue seat 23 on the right side of vacuum bag 2 is workbench, is made
For resin main-inlet；The injecting glue seat in left side is used as vacuum orifice；The outside of vacuum bag 2 is sealed by sealant tape 213.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (7)
1. a kind of carbon fibre composite racing body manufacture method, comprises the following steps：
(1) formpiston is manufactured
1) mapping software addition frame configuration, i.e., export major axis vertical section in the catia figures for designed car body profile；
2) skeleton drawing is pressed 1:1 is printed upon on drawing and label, is then attached on PVC foam plate；
3) PVC foam plate is cut out coming according to drawing, splices PVC skeletons, extruded sheet is filled into skeleton, wherein extruded sheet
Profile have to be larger than PVC board profile, foam special glue fixing PVC foaming framework and extruded sheet, after after the special adhesive curing of foam,
Then polished, seamlessly transitted between two blocks of PVC foam plates according to shape, obtain mould A；
4) in one layer of epoxy resin of mould A surface smears, prevent atomized ash from corroding extruded sheet, after after epoxy resin cure, smear
One layer of atomized ash sealing of hole, it is floating with scraper scraper plate, polished after waiting atomized ash solidification with water-proof abrasive paper, mesh number is from low to high
Polished, obtain mould B；
5) with brush in mould B surface brushing first layer mould priming paint；
6) after after the first layer mould solidifying priming paint of mould B surface, carried out second using P80~P240 dry sand paper is from coarse to fine
Polishing, obtains mould C；
7) expose material part to mould C with a small amount of atomized ash to repair, obtain mould D；
8) after after the atomized ash solidification on mould D surfaces, in mould D external coating second layer mould priming paint, mould E is obtained；
9) mould E is carried out after third time polishing with P80~P500 sand paper is from coarse to fine, with P500~P800 water-proof abrasive paper
Water mill is carried out to it；
10) after water is dry, brushing bloom gel coat obtains mould F；
11) the 4th polishing is carried out to mould F with P80~P500 dry sand paper is from coarse to fine, then with P500~P1200 resistance to water sand
Paper carries out water mill, obtains the formpiston of light；
(2) former is turned in manufacture：
1) male mold surfaces are pre-processed：First have to be surface-treated obtained formpiston before fiberglass former is made, that is, use
Alcohol wipe male mold surfaces, clean the spot of male mold surfaces, obtain clean formpiston, are defined as formpiston A；
2) chemical releasing agent is coated：In the chemical releasing agent of formpiston A surface coated with multiple layer, releasing agent layer is formed, is taken off per stratification
Volatilization wipes unnecessary part after 5-30 seconds after mould oxidant layer is coated；At least 15 minutes are needed per between stratification releasing agent layer
Hardening time, at least need to solidify a hour after last layer is painted with, obtain the mould with the chemical releasing agent of multilayer, it is fixed
Justice is formpiston B；
3) flange made is fixed on formpiston B edges with PUR, the seam between PP cored slabs is sealed with pressure sensitive adhesive tape
Gap, obtains formpiston C；
4) with the gap of filling wax sealing flange and formpiston C, note drafting angle, obtain formpiston D；Wherein drafting angle is controlled
At -30 °~+30 °；
5) in formpiston D external coating mould gel coat layer, wherein mould gel coat layer is coated in two times, the gross thickness of mould gel coat layer
Control in 0.8mm, wherein first layer brush 0.3-0.4mm uniform thickness, after solidification 2-3 hours of 20 DEG C of room temperature, then the brush second layer
0.3-0.4mm thickness, at least solidifies 4 hours at room temperature, places a night, obtains the mould with coating die gel coat, is defined as sun
Mould E；
6) in formpiston E external coatings glass fibre as coupling layer, ensure own on the docile and obedient formpiston E of glass fibre in painting process
Turning, it is necessary to pay special attention to the place of wedge angle, so as to obtain the mould with coupling layer, be defined as formpiston F；
7) in formpiston F external coating laminated resins：4 layers of glass fibre is at least spread, one layer of resin of brush then spreads one on formpiston F
Layer glass fibre, one layer of resin correspondence layer of glass, the consumption of each layer of resin is to be coated with glass fiber quality thereon
4 times, glass fibre is all coated with formpiston E；When solidification is started, color will be changed into dark-brown from brown, protect
Resin curing time is demonstrate,proved more than 24 hours；Wherein the part by weight of resin and glass fibre is 4:1, then solidify 24 hours,
Former is turned in acquisition；
(3) carbon fibre composite vehicle body is manufactured：
1) minimum interval 15 minutes between the chemical releasing agent of multilayer, every layer are coated turning over female mold surfaces, after last layer is painted with
After at least wanting 1 hour, former A is turned in acquisition；
2) turning over former A surfaces addition first layer the demoulding layer of cloth, this layer of release cloth be seal former in first layer, be one layer can
The cloth torn, is torn after completing part, it is ensured that release cloth can cover carbon cloth, obtains and turns over the moon with demoulding layer of cloth
Mould, is defined as turning over former B；
3) place carbon cloth on demand on the release layer for turning over former B, and gently fixed with adhesive tape, obtain band carbon fiber
Layer of cloth turns over former, is defined as turning over former C；
4) second layer demoulding layer of cloth is added on the surface for turning over former C, this layer of demoulding layer of cloth is equally one layer of cloth that can be torn,
It will be torn after completing part, it is ensured that release cloth can cover carbon cloth, former D is turned in acquisition；
5) water conservancy diversion stratum reticulare is added：Flow-guiding screen is cut into as demoulding layer of cloth size or overlayed on after bigger shape and turns over former D
Release cloth layer surface positioned at upper strata, flow-guiding screen extends sufficiently into injecting glue seat, it is ensured that once vacuumizing, resin is from vacuum tube and tree
Freely extended through in fat feed auger pipe in the carbon fibre cloth layer for turning over former D, obtain covering water conservancy diversion stratum reticulare turns over former, is defined as
Turn over former E；
6) fixed helix tube：Two resin feeding helix tubes are separately fixed at and turned on flow-guiding screen on relative two sides of former E,
So that resin is rapidly and evenly distributed along turn over former E one lateral opposite side, it is ensured that resin enters to flow to flow-guiding screen from helix tube
In；
7) silica gel connector is positioned：The lower wing passage connection resin feeding helix tube of silica gel connector (also known as injecting glue seat)；Resin
Passed through into helix tube from the passage, it is ensured that resin is from vacuum tube flows to resin feeding helix tube by injecting glue seat；Injecting glue
Seat is fixed on the middle part of resin feeding helix tube, presses injecting glue seat, resin feeding helix tube is mounted in injecting glue seat, with
Just resin is evenly distributed to the one side for turning over former E in the bottom of injecting glue seat by helix tube；
8) adhesive seal adhesive tape：Sealant tape is pasted onto the flange for turning over former E, and it is big at least that one piece of ratio is turned over into former E areas
50% vacuum bag film, since in corner, the paper at peel seal adhesive tape back is pressed vacuum bag film, adhered to exposed
On sealant tape, vacuum bag film and sealant tape is sticked together, set up a sealed environment, whole process ensures vacuum bag
Whole turning over former E from front to back and covering for corrugationless or folding line, forms sealing cavity block system；
9) connection and sealing resin feeding tank：All vacuum bag films are after all heap is folded, i.e., carbon cloth is sealed to vacuum bag
In, the breach of lane one on the vacuum bag film of resin feeding joint connects resin mozzle, and resin passes through injecting glue from head tank
Seat swimmingly flows in sealing cavity block system；
10) connection and sealing resin trap：One section of sufficiently long vacuum tube is cut, for connecting resin trap and in connection
That injecting glue seat on the injecting glue seat opposite of resin feeding tank, is sealed, very after vacuum tube one end is promoted vacuum bag with sealant tape
The blank pipe other end is connected to the import accessory of resin trap, and vacuum tube is stretched into resin trap inner bag, prevents drop of resin
On the outside of to inner bag, then by import accessory is tightened clockwise, sealed environment is formed；
11) connection vavuum pump and resin trap：Prepare two vacuum tubes, and connected two vacuum tubes with check-valves, connect
One end of vacuum tube afterwards is connected to the import accessory of resin trap, promotes vacuum tube to be received through import accessory into resin
A small distance in storage, then by tightening accessory clockwise；The other end of vacuum tube is connected on vavuum pump；In this process
In, the direction of check-valves is air flow vavuum pump, on the contrary then can not circulate；
12) resin feeding line is clamped, that is, connects the vacuum tube of resin head tank and injecting glue seat：Placed at the top of resin feeding tank
Pipe clamp, rotates wing nut and closes pipe clamp, it is ensured that created a sealed environment；
13) air is evacuated, vacuum bag is adjusted, it is ensured that vavuum pump connects correct voltage, pumping fluid is suitably poured into, main electricity is connected
Source, surrounding as needed is moved and fixed behind vacuum bag film to suitable position, opens vavuum pump, when air is by from vacuum bag
When inside taking away, vacuum bag film, which is tightly attached to, turns over former E surfaces；
14) vacuum is tested：Open vavuum pump and evacuate vacuum bag, sentenced by having detected whether that pumping fluid is evaporated from pump
In disconnected vacuum bag whether perfect vacuum, and examined by corresponding vacuum " fall-down test " and determine whether vacuum bag film is let out
Leakage, it is necessary to be adjusted to vacuum bag, water conservancy diversion work can be taken up until being fully sealed；
15) the correct consumption of resin and curing agent is calculated, and as needed by the resin and curing agent of needs by correct ratio
After being stirred evenly after example, it is added in resin feeding tank；
16) resin feeding pipe is opened, during vacuum pump operation, the pipe clamp of resin feeding pipe is gently turned on, can be stood when turning on nut
See that resin is sucked into vacuum tube and starts water conservancy diversion quarter, to ensure that the importing of resin is not any way limited when unclamping nut；
17) water conservancy diversion is monitored：During resin guide infiltration 60%~80%, the pipe clamp of resin feeding pipe is closed；
18) continue to supervise resin guide：Tight along with resin feeding pipe clamp, part water conservancy diversion completely now waits resin solidification；
Vavuum pump should keep working condition during cure cycle, until product is fully cured, obtain the vehicle body A of carbon fibre composite；
Due to excessive hybrid resin build up together can drastically heat release, the resin in the head tank of part need to be disposed；If necessary to add
Fast resin solidification, will turn over former and is put into the solidification of baking oven high temperature, or product is solidified at room temperature as hot setting
Alternative, both approaches have not significant impact for quality of item；
19) it is stripped：Vavuum pump answers continuous firing, and until part is fully cured, vacuum bag film is torn from former to be obtained
Obtain the automobile body B of carbon fibre composite；
(4) vehicle body outside surface is handled：
1) the depression atomized ash filling-in that there is surface after the covering demoulding of automobile body B；
2) polished with silicon carbide paper P80-P500 is from coarse to fine；
3) with filling out, eye is grey to mend dit；
4) with the P240-P1200 whole product surface of silicon carbide paper polishing；
5) spray painting application can obtain final products after the completion of polishing.
2. a kind of carbon fibre composite racing body manufacture method as claimed in claim 1, it is characterised in that：Step (3)
In demoulding step 19) it is as follows：
1. surrounding edge and the removal of the vehicle body A of carbon fibre composite vacuum bag film are cut；
2. the sealant tape at former edge is removed, quick wrench is maximally effective；
3. injecting glue seat is removed, the solidified resin being bonded on injecting glue seat is removed totally, these injecting glues seat may be reused；
4. pull down and throw away flow-guiding screen；
5. release cloth and product are taken off from former together；
6. release cloth is carefully torn, product should not be damaged.
3. a kind of carbon fibre composite racing body manufacture method as claimed in claim 1, it is characterised in that：Step (4)
In 1) it is described maintenance comprise the following steps with reparation：
1) when crackle occurs in the outward appearance of automobile body B covering, should carry out minute observation first, judge crackle depth whether
Reach carbon fibre composite；
If 2) crackle is only occurred from atomized ash filling-in, painted again with filling out to polish after the grey filling-in of eye；
If 3) there is crackle in carbon fibre composite, inside the body outer skin with after carbon fiber cloth reinforcement with filling out after the grey filling-in of eye
Polishing is painted reparation again.
4. a kind of carbon fibre composite racing body manufacture method as claimed in claim 1, it is characterised in that：The vacuum
One end of pipe carries the inclination angle of 45° angle, and one end with inclination angle of vacuum tube then is passed through into the aperture on vacuum bag film
Vacuum tube is pushed in, promotes in the aperture at the top of injecting glue seat, sealant tape is made a circle flexible pipe by being wrapped around vacuum tube
It is sealed on vacuum bag, by firm, it is ensured that sealant tape sealed environment does not change.
5. a kind of carbon fibre composite racing body manufacture method as claimed in claim 1, it is characterised in that：Step (3)
13) in：The vacuum bag position for moving sealing former E if necessary is improper when needing to move, because the film of vacuum bag is opened
Begin progressively to become tight, vacuum bag should not completely be vacuumized, temporarily turn off vavuum pump, at this moment move the vacuum for needing to reposition
Bag, it is necessary to place do a little folds, it is ensured that there is no the gap that vacuum bag is bridged on former；If vacuum bag film size is inadequate
Greatly, it will be bridged in the certain point of former, is just repaired and be have adjusted without the vacuum bag film that can be retightened；If hair
Raw this situation, it should stop, removing sack and sealant tape tries again again.
6. a kind of carbon fibre composite racing body manufacture method as claimed in claim 1, it is characterised in that：Step (3)
14) test vacuum in, when hermetically sealed, the steam of pumping fluid can stop being evaporated from vavuum pump, on this node, enter
Row vacuum " fall-down test ", turns off vavuum pump, continues at least 20 minutes, then meticulous inspection vacuum meter；If index decreased, i.e.,
Determine that vacuum bag film has leakage, it is necessary to be adjusted；If endless hermetically sealed, vacuum bag film and fluid sealant are firmly pressed
Band, then vacuum test is carried out, until being fully sealed.
7. the sealing cavity block system that a kind of carbon fibre composite racing body manufacture method according to claim 1 is built
System, it is characterised in that：Including turning over former, vacuum bag and injecting glue seat, the upper surface for turning over former is sequentially provided with from inside to outside
Releasing agent layer, first layer demoulding layer of cloth, carbon fibre cloth layer, second layer demoulding layer of cloth and water conservancy diversion stratum reticulare；The vacuum bag is relative
Both sides be respectively provided with injecting glue seat, and each injecting glue seat piece resin feeding helix tube of correspondence, injecting glue seat is fixed on resin
The middle part of feed auger pipe；Described resin feeding helix tube one end extends to the water conservancy diversion stratum reticulare for turning over former, and the other end is passed through
The lower wing passage of injecting glue seat；One of injecting glue seat is connected as resin inlet with resin feeding tank；The seat conduct of another injecting glue
Vacuum orifice, is connected by vacuum tube with resin trap sealing；The general from front to back of whole vacuum bag corrugationless or folding line
The whole former that turns over is coated on interior, formation sealed environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287852.7A CN107116809B (en) | 2017-04-27 | 2017-04-27 | A kind of carbon fibre composite racing body manufacturing method and its sealing cavity block system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN109049758A (en) * | 2018-08-03 | 2018-12-21 | 华南理工大学广州学院 | A kind of vehicle body production method based on carbon fiber former |
| WO2021051486A1 (en) * | 2019-09-20 | 2021-03-25 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Carbon nanotube thin film/composite material forming method and manufactured lightning protection structure |
| CN112706369A (en) * | 2020-12-22 | 2021-04-27 | 深圳市奋达科技股份有限公司 | Front mold capable of improving product quality, mold and machining method of front mold |
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| CN107116809B (en) | 2019-05-31 |
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