CN107116811A - The preparation method of composite locator mould and locator - Google Patents
The preparation method of composite locator mould and locator Download PDFInfo
- Publication number
- CN107116811A CN107116811A CN201710358040.7A CN201710358040A CN107116811A CN 107116811 A CN107116811 A CN 107116811A CN 201710358040 A CN201710358040 A CN 201710358040A CN 107116811 A CN107116811 A CN 107116811A
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- Prior art keywords
- mould
- connecting portion
- locator
- prepreg
- locating piece
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
-
- 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
- B29C70/345—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 matched moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to technical field of mold, the present invention provides a kind of carbon fiber locator mould and its application method, and mould includes upper die and lower die, and the upper mould is used to form the girder shape identical die cavity with the locator with lower mould make-up；First locating piece and the second locating piece, first locating piece and the second locating piece are located at the two ends of the die cavity bearing of trend respectively；And multiple connecting portions for connection.Particular manufacturing craft is devised according to the shape of locator and carbon fibre composite moulding process, monolithic construction is made with particular manufacturing craft co-curing reaction, the quantity of part and fastener can be reduced, it is effectively reduced locator weight, and many advantages, such as there is high specific strength, high ratio modulus, strong corrosion resistance simultaneously, improve the military service of locator.
Description
Technical field
The present invention relates to technical field of mold, the making of more particularly to a kind of composite locator mould and locator
Method.
Background technology
High-speed railway is one of important directions of railway development, is also to ensure that the important leverage of Chinese Economy Development.At a high speed
Simple-to-maintain, safety and the high efficiency operation of railway have vital meaning for the development of the whole railway network.Cut-off 2015
The end of the year, China railways operation mileage breaks through 120,000 kilometers, and high-speed railway operation mileage reaches 1.9 ten thousand kilometers.At present, domestic high speed
Railway contact line equipment passes through years development, by introducing, digesting, absorb, has preliminarily formed own standards system, has formd
《200~250km/h electrification railway contact nets equip provisional technical conditions》、《300~350km/h electrification railway contact nets
Equip provisional technical conditions》Etc. achievement.
Current locator is generally aluminium alloy straight locator, and overall operation was all right in recent years, but there is also some
Not enough and room for improvement, is primarily present problems with：
(1) the heavy corrosion region, aluminium alloy locator anti-corrosion capability Shortcomings such as in coastal and tunnel；
(2) aluminium alloy locator fatigue resistance Shortcomings；
(3) straight locator and pantograph Dynamic Envelope matching are bad, exist under extreme operating condition and beat bow hidden danger；
(4) easily there is excessive wear in locator shackle junction；
(5) retainer features quantity is excessive, there is security risk at riveting；
(6) aluminium alloy locator is larger by weight, influences current carrying quality.
Chinese high ferro implements strategy of walking out, and existing contact net faces patent and the problems such as reality is safeguarded, by railway general bureau
Project verification research and development contact net of future generation, it is desirable to by using new material, new construction and new technology manufacture experimently new contact net each group part, its
One of middle scheme is using the multiple material scheme of carbon fiber, it is desirable to make full use of carbon fibre composite itself lightweight, high intensity, resistance to
Corrosion, is integrally formed, and few maintenance etc. improves the reliability of product better than the advantage of existing aluminium alloy or Steel material, reduces visitor
The substantial amounts of maintenance work of family later stage.
Therefore the locator that a kind of new use carbon fibre composite is made is developed, as Figure 1-4.The positioning
Utensil has the advantages that big, lightweight, corrosion-resistant intensity, endurance and mounting and adjusting are simple；Therefore, in order to realize locator batch
Amount production, is badly in need of providing a kind of special mould.
The content of the invention
The technical problems to be solved by the invention are：In order to overcome deficiency of the prior art, the present invention provides a kind of multiple
The preparation method of condensation material locator mould and locator, the mould be it is a kind of for above-mentioned locator based on autoclave molding
The particular manufacturing craft of technique.
The present invention solves its technical problem technical scheme to be taken：A kind of composite locator mould, it is described
The cross section of locator is H types, and the H types section includes web, and two rafter bars positioned at web two ends, and the mould refers to
The assembly of composite product shape used unit, including upper die and lower die, the upper mould and lower mould make-up are assigned in shaping
For forming the girder shape identical die cavity with the locator；Upper die and lower die are used for paving prepreg and formation type
Chamber.
First locating piece and the second locating piece, first locating piece and the second locating piece are located at the die cavity and extended respectively
The two ends in direction；The locating piece at two ends is used for the positioning of upper and lower mould and is connected.
It is formed at connecting portion on the first of described upper mould one end and is formed at first time connecting portion of described lower mould one end,
Connecting portion and first time connecting portion are relative up and down on described first, and connecting portion and on first locating piece and described first
Once connecting portion is fixedly connected；
And be formed at the upper mould other end second on connecting portion and be formed under the second of the lower mould other end
Connecting portion, connecting portion and second time connecting portion are relative up and down on described second, and second locating piece on described second with connecting
Socket part is fixedly connected with second time connecting portion.There is the attachment structure of locating piece respectively at upper and lower mould two ends, coordinate locating piece real
Now position, and complete the connection of upper and lower mould.
Further, having on the inside of the upper mould on the inside of the upper die forming face formed by convex platform, the lower mould has under
The lower mold forming face of boss formation, the upper die forming face is with the lower mold forming in face of buckle-shaped into the die cavity.Upper die forming
The shape in face and lower mold forming face is designed according to the shape of locator, and boss is used for the relative of the structure for forming the H types of locator
Two grooves, constancy is good.
Further, first locating piece includes the first location division and the first limiting section, first location division and first
Limiting section is integrated the T-shaped structure of connection, and first location division is plugged in connecting portion and first time connecting portion on described first
Between and the cylindrical pins and described first by sequentially passing through connecting portion on first, the first location division and first time connecting portion on
Connecting portion and first time connecting portion are fixedly connected, and first limiting section is close to connecting portion and first time connection on described first
The outside of portion end, and the first limiting section upper end is fixedly connected by cylindrical pins with connecting portion on first, described first
Limiting section lower end is fixedly connected by cylindrical pins with first time connecting portion.
Further, second locating piece includes the second location division and baffle plate, and second location division and baffle plate are split
The T-shaped structure of connection, second location division be plugged on described second between connecting portion and second time connecting portion and by according to
Connecting portion and second in the secondary cylindrical pins for running through connecting portion on second, the second location division and second time connecting portion and described second
Lower connecting portion is fixedly connected, and the baffle plate is close to the outside of connecting portion and second time connecting portion end on described second, and institute
State baffle plate upper end to be fixedly connected with connecting portion on second by cylindrical pins, the baffle plate lower end passes through under cylindrical pins and second
Connecting portion is fixedly connected.
It is easy to matched moulds with baffle plate split in the second location division；The locating piece of the other end first, which is integrated, to be conducive to alignment pin direction
Apply pressure.First locating piece is designed as that front and rear certain distance movement, and left and right directions position limitation can be done, on the one hand to positioning
Pin plays positioning action, on the other hand ensures that vacuum bag can fully be pressed by the first locating piece to alignment pin.
Further, in addition to silicon rubber bar, the silicon rubber bar envelope is located at the both sides of the die cavity.For H type locators
The positioning molding of two sides.On the one hand silicon rubber bar transmits pressure, on the other hand ensures any surface finish.
Further, in addition to vacuum bag, the mould is integrally located inside the vacuum bag.
Above-mentioned mould meets product --- the requirement of the figuration such as structure, shape, size of carbon fibre composite locator, and
Meet the requirement of pressure transmission and heat transfer.
A kind of preparation method of composite locator, is molded using above-mentioned composite locator mould heat pressure, including
Following steps：
1) mould prepares
Mould first in use, first with cleaning calico the oil stain dust and other impurities of die surface are cleaned out, be used in combination
Acetone wipes die surface, is subsequently placed with 10min or so, coats releasing agent；Preferably, releasing agent is applied 3 times altogether, each time
It is spaced 15min.Multiple coating release agent ensures demoulding effect.
2) prepreg is cut
According to topology requirement, blanking figure is designed；Blanking drawing is loaded into cutter；According to drawing requirement, correspondence shape is cut
The prepreg of shape；After the completion of cutting, sealing preserve is carried out to prepreg, waits laying to use；Prepreg does not allow to appoint when cutting
What splicing, overlap joint, and the defective position of prepreg will cast out；Wherein, prepreg refer to resin system impregnating continuous fibres or
Fabric, forms resin system and the compound of reinforcement, is the intermediate materials for preparing composite.Prepreg type has unidirectional pre-
Soak material, one-way fabric prepreg (weft yarn ＜ 10%), Fabric prereg, narrow tape prepreg (mm magnitudes), prepegged strands, wrinkle-free fabric
Prepreg (with reference to suturing skill).
3) paving
The paving of prepreg is first carried out respectively on upper die and lower die, to entering beyond sized fraction prepreg using scissors etc.
Row trimming, and by the angular deviation control of prepreg within the specific limits；When first layer prepreg carries out paving, rafter bar position is stayed
There is part flange；When rafter bar part paving to layer prepreg second from the bottom, flange is stayed to dig first layer prepreg, then
Last layer of prepreg of paving rafter bar part；The attractive in appearance of product rafter bar edge is so on the one hand added, on the other hand one
Determine to improve structural behaviour in degree.
4) matched moulds
After the completion of upper die and lower die two parts mould paving, placement positioning pin and sleeve, and by upper die and lower die two
Divide mould make-up, the first locating piece is then fastened into upper die and lower die with bolt using cylindrical pins, and c-type is used in the other end
Folder is clamped, and to avoid tilting, ensures that upper die and lower die are brought into close contact with this, then paving silicon rubber bar part, finally by adopting
The first locating piece and the second locating piece are fastened into upper die and lower die with pin and bolt；Metal sleeve position is swollen by silicon rubber heat
Swollen progress application pressure, on the one hand simplifies metal die design, on the other hand ensure that type face is attractive in appearance.
Due to composite material strength and each opposite sex of rigidity, and the spy such as composite interlayer intensity is relatively low, ductility is small
Point, using metalwork shop bolt and sleeve as locator and the connecting elements of miscellaneous part, in order to ensure that carbon fiber is combined
The installation of material structure part and performance requirement, it is to avoid machining carbon fibre composite matrix, in carbon fiber composite
Expect in structural member forming process, protected using the technological measure of hardware is pre-placed on carbon fibre composite matrix
Card, i.e. built-in fitting.It is more than the small an order of magnitude of carbon fibre composite linear expansion coefficient compared with aluminium alloy and titanium alloy, and with not
Becoming rusty, steel is close, and carbon fiber locator is higher to structural behaviour, thermal stability requirement, is not suitable for from aluminum alloy materials as pre-buried
Part；Built-in fitting is used as using stainless steel material.To prevent built-in fitting from releasing, it generally can select square toes flange, external diameter annular knurl, beat fixed
The measures such as position pin, are embedded in carbon fibre composite matrix.
5) solidify
It is right after the completion of laying vacuum aided material, vacuum aided material placement to the product completed by technological requirement paving
Product vacuum sealing, and carry out on autoclave vacuum degree measurement；Then carry out in product solidification, product solidification process, perform
Solidification record, and curing cycle is set to 120 DEG C/2h；Vacuum aided material refers mainly to airfelt and vacuum bag, and wherein mould is overall
Wrapped up using airfelt, be then placed into vacuum bag carrying out vacuum sealing；
6) it is stripped
The product of curing molding is stripped, deburring processing.
After the completion of solidification, mould is taken out from autoclave, outsourcing vacuum bag and airfelt is removed；Use inner hexagon spanner
Twist and remove whole bolts；Again bolt is screwed into the first locating piece demoulding screw corresponding with the second locating piece；Treat that bolt is screwed to
To a certain degree, mould and product initial gross separation, then using nylon releasing key insertion separation gap, the slow mobile demoulding；
Damage mould and product are careful not to, visual inspection product surface answers zero defect, and profile there should not be gross distortion.
Further, the step 2) in also include step：Mark, after the completion of prepreg is cut, in every prepreg front
Mark is made, mark content includes fiber angles direction and prepreg is numbered.The material completed to cutting carries out corresponding mark, with
Ensure correct laying, be easy to confirm ply stacking-sequence and angle.
Further, the prepreg includes unidirectional pre-immersion material and Fabric prereg, the step 3) the middle unidirectional preimpregnation of requirement
Angular deviation control is expected at ± 5 °, and Fabric prereg angular deviation is controlled at ± 6 °.Control angular deviation can meet design will
Ask, it is ensured that structural strength.
Further, the step 3) in prepreg overlay when must overlap, overlap joint scope control owns in 10mm~15mm
Overlapping the slot must stagger.Stress concentration can be avoided, structural strength is reduced.
Further, step 5) described in lay vacuum aided material specifically include successively lay release cloth, non-porous release film,
Silicon rubber, airfelt and vacuum bag, the vacuum aided material should leave enough surpluses, and the release cloth and barrier film should be complete
Full laminating product surface, the silicon rubber complete laminating product after being fixed with pressure sensitive adhesive tape.
Specifically, step 5) described in vacuum degree measurement require that vacuum in more than 850mbar, keeps 3min, vacuum
Decline and be no more than 150mbar, meanwhile, the whole vacuum of product in the curing process is not lower than 800mbar.
Further, in addition to step 7) secondary solidification, article removal complete and deburring after, turning reinforced region surface makes
Polished coarse, filled and process in type groove, and polished flat, last ring winds 2 layers of unidirectional pre-immersion material with 200 mesh sand paper；Paving
After the completion of, release cloth, non-porous release film, silicon rubber, airfelt and vacuum bag are laid successively in the cavity positions of rafter bar, and are carried out
Secondary solidification, curing cycle is set to 120 DEG C/2h.
Solidification can use a step co-curing or two step co-curings.
The composite of the present invention refers specifically to carbon fibre composite.
The beneficial effects of the invention are as follows：A kind of composite locator mould and the making side of locator that the present invention is provided
Method, particular manufacturing craft is devised according to the shape of locator and carbon fibre composite moulding process, carbon fibre composite
Forming technology is good, can easily shape the component in any type face and monoblock type knot is made with particular manufacturing craft co-curing reaction
Structure, can reduce the quantity of part and fastener, be effectively reduced locator weight, and have simultaneously high specific strength, high ratio modulus,
Many advantages, such as corrosion resistance is strong, improves the military service of locator.Innovative and advance is mainly manifested in：
(1) railway electrification field uses high performance carbon fiber component first；
(2) advanced autoclave integral forming technique is employed；
(3) locator body uses the H-shaped section of reasonable stress；
(4) corrosion resistance, fatigue durability, wear resistance of locator are improved；
(5) matching of locator and pantograph is improved；
(6) retainer features quantity is reduced, globality is enhanced；
(7) compared with straight aluminium alloy locator, weight reduces 25%, improves pantograph-catenary current collection performance.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of locator；
Fig. 2 is the structural representation at the shop bolt end of locator；
Fig. 3 is the structural representation of the socket end of locator；
Fig. 4 is the cross-sectional structure schematic diagram of locator；
Fig. 5 is the structural representation of preferred embodiment；
Fig. 6 is cross-sectional structure schematic diagram when mould is used；
Fig. 7 is the installation diagram of mould；
Fig. 8 is the dimensional structure diagram of lower mould；
Fig. 9 is the upward view of lower mould；
Figure 10 is the front view of lower mould；
Figure 11 is the top view of lower mould；
Figure 12 is the cross-sectional view of A-A in Figure 11；
Figure 13 is the dimensional structure diagram of upper mould；
Figure 14 is the upward view of upper mould；
Figure 15 is the front view of upper mould；
Figure 16 is the top view of upper mould；
Figure 17 is the cross-sectional view of B-B in Figure 14；
Figure 18 is the dimensional structure diagram of the first locating piece；
Figure 19 is the side view of the first locating piece；
Figure 20 is the top view of the first locating piece；
Figure 21 is the cross-sectional view of C-C in Figure 20；
Figure 22 is the structural representation of the second location division；
Figure 23 is the structural representation of baffle plate；
Figure 24 is the schematic flow sheet of paving flange.
In figure：100th, locator, 101, girder, 102, shop bolt, 103, sleeve, 104, web, 105, rafter bar, 1, under
Mould, 1-1, first time connecting portion, 1-2, second time connecting portion, 1-3, lower mold forming face, the 2, first locating piece, 2-1, the first positioning
Portion, 2-2, the first limiting section, 3, cylindrical pins, 4, upper mould, 4-1, connecting portion on first, 4-2, connecting portion on second, 4-3, on
Mold forming face, the 5, second locating piece, 5-1, the second location division, 5-2, baffle plate, 6, alignment pin, 7, bolt, 8, pin side forming tank,
9th, sleeve side forming tank, 10, through hole, 11, screwed hole, 12, vacuum bag, 13, flange, 14, silicon rubber bar, 15, portion of carving characters, 16,
Prepreg.
Embodiment
Presently in connection with accompanying drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
The basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
As Figure 1-4, composite locator 100 of the present invention, including girder 101, shop bolt 102 and set
Cylinder 103, girder 101 includes main body and jointing, and jointing is located at one end of main body, and the other end of main body is embedded with sleeve
103, jointing is embedded with shop bolt 102.Main body integrally uses the section of arc and main body for H types, section of jointing
Face is H types, and the centre of H types is referred to as web 104, and the parallel part in both sides is referred to as rafter bar 105.Jointing is in a clamp with main body
Angle forms bending and changes the original bearing of trend of main body, and connector is bent to the inner side of curved body.
As illustrated in figs. 5-7, a kind of mould of condensation material locator 100, including upper mould 4 and lower mould 1, the upper mould 4 and lower mould 1
Make-up is used to form the shape identical die cavity of girder 101 with the locator 100；
First locating piece 2 and the second locating piece 5, the locating piece 5 of the first locating piece 2 and second are located at the die cavity respectively
The two ends of bearing of trend；
Be formed at connecting portion 4-1 on the first of described one end of upper mould 4 and be formed at described one end of lower mould 1 first under connect
Socket part 1-1, connecting portion 4-1 and first time connecting portion 1-1 is relative up and down on described first, and first locating piece 2 with it is described
Connecting portion 4-1 and first time connecting portion 1-1 are fixedly connected on first；
And be formed at the other end of upper mould 4 second on connecting portion 4-2 and be formed at the other end of lower mould 1
Second time connecting portion 1-2, connecting portion 4-2 and second time connecting portion 1-2 is relative up and down on described second, and second locating piece
5 are fixedly connected with connecting portion 4-2 on described second and second time connecting portion 1-2.
As illustrated in figs. 8-12, the two ends of lower mould 1 are respectively first time connecting portion 1-1 and second time connecting portion 1-2, first
Lower connecting portion 1-1 end faces, provided with three through holes 10, upper mould 4, lower mould 1 and first are realized for plugging cylindrical pins 3 along axis
Location division 2-1 connection positioning, the first location division 2-1 is located on first between connecting portion 4-1 and first time connecting portion 1-1, led to
Cylindrical pins 3 are crossed through fixation, first time connecting portion 1-1 end sides, which is additionally provided with one, to be used to be connected with the first limiting section 2-2
Screwed hole 11；Second time connecting portion 1-2 is rectangular configuration, and two through holes are respectively equipped with the both sides with the lower diameter parallel of mould 1
10 as dowel hole, for the positioning of alignment pin 6, and one is additionally provided between adjacent two dowel hole is used for fixed screwed hole
11, the side of second time connecting portion 1-2 end is transversely provided with two screwed holes 11, with the location matches of through hole 10 on baffle plate 5-2；
The inner side of lower mould 1 has the lower mold forming face 1-3 formed by lower convex platform, and the lower surface of lower mould 1 is distributed multiple screw threads along axis
Hole 11.
As shown in figs. 13-17, the two ends of upper mould 4 are respectively connecting portion 4-2, on connecting portion 4-1 and second on first
Connecting portion 4-1 upper surfaces are matched, first along axis provided with three through holes 10 with the through hole 10 on first time connecting portion 1-1 on one
Upper connecting portion 4-1 end sides are additionally provided with a screwed hole 11 for being used to be connected with the first limiting section 2-2；Connecting portion 4- on second
2 be rectangular configuration, two through holes 10 is respectively equipped with the both sides with the lower diameter parallel of mould 1 as dowel hole, for alignment pin 6
Positioning, be additionally provided between adjacent two dowel hole one be used for fixation screwed hole 11, the side of connecting portion 4-2 ends on second
Face is transversely provided with two screwed holes 11, with the location matches of through hole 10 on baffle plate 5-2, is connected for bolt 7 or screw thread, will
Baffle plate 5-2 is fixed on the side of mould ends；The inner side of upper mould 4 has the upper die forming face 4-3 formed by convex platform, institute
State upper die forming face 4-3 and the lower mold forming face 1-3 make-ups form and the portion of carving characters 15 is additionally provided with the die cavity, boss, be used for
Formed and identified on the surface of locator 100, the upper surface of upper mould 4 is distributed multiple screwed holes 11 along axis.
As shown in figs. 18-21, first locating piece 2 includes the first location division 2-1 and the first limiting section 2-2, and described the
One location division 2-1 and the first limiting section 2-2 are integrated on the T-shaped structure of connection, the first location division 2-1 and have kidney ellipsoid
Through hole 10, the upper and lower surface of side of the kidney ellipsoid through hole 10 away from the first limiting section 2-2 is respectively equipped with a screwed hole 11, described
First location division 2-1 is plugged on described first between connecting portion 4-1 and first time connecting portion 1-1 and by sequentially passing through first
In upper connecting portion 4-1, the first location division 2-1 and first time connecting portion 1-1 cylindrical pins 3 and described first connecting portion 4-1 and
First time connecting portion 1-1 is fixedly connected, the pin side of the sides of the first limiting section 2-2 ends provided with shaping shop bolt 102 into
Type groove 8；The first limiting section 2-2 is close to the outside of connecting portion 4-1 and first time connecting portion 1-1 end on described first,
Two kidney ellipsoid through holes 10 vertical with the first limiting section 2-2, and described first are had on the first limiting section 2-2
Limiting section 2-2 upper ends are fixedly connected by the cylindrical pins 3 of the kidney ellipsoid through hole 10 through top with connecting portion 4-1 on first,
The first limiting section 2-2 lower ends are fixed by cylindrical pins 3 through kidney ellipsoid through hole 10 and first time connecting portion 1-1 of lower section
Connection.
As shown in figs. 22-23, second locating piece 5 includes the second location division 5-1 and baffle plate 5-2, second positioning
Portion 5-1 and baffle plate 5-2 is the T-shaped structure that split is connected, and the second location division 5-1 both sides are respectively equipped with two conducts of through hole 10
Provided with a screwed hole 11 between dowel hole, two neighboring through hole 10, the side of the second location division 5-1 towards the die cavity is set
There is the sleeve side forming tank 9 of circular arc, for the shaping of the side locator 100 of sleeve 103, the second location division 5-1 is plugged in
On described second between connecting portion 4-2 and second time connecting portion 1-2 and by sequentially pass through connecting portion 4-2 on second, second determine
Position portion 5-1 and second time connecting portion 1-2 cylindrical pins 3 are fixed with connecting portion 4-2 on described second and second time connecting portion 1-2
Connection, the baffle plate 5-2 is close to the outside of connecting portion 4-2 and second time connecting portion 1-2 end on described second, the baffle plate
5-2 is provided with two rows kidney ellipsoid through hole 10, and often row has two, respectively with connecting portion 4-2 on second and second time connecting portion
The screwed hole 11 of 1-2 end sides is matched, and the baffle plate 5-2 upper ends are fixed by cylindrical pins 3 with connecting portion 4-2 on second
Connection, the baffle plate 5-2 lower ends are fixedly connected by cylindrical pins 3 with second time connecting portion 1-2.
Further, in addition to silicon rubber bar 14, the envelope of silicon rubber bar 14 is located at the both sides of the die cavity.
Further, in addition to vacuum bag 12, the mould is integrally located inside the vacuum bag 12.
Above-mentioned mould meets product --- and the figuration such as structure, shape, size of carbon fibre composite locator 100 will
Ask, and meet the requirement of pressure transmission and heat transfer.
As shown in fig. 6, a kind of preparation method of composite locator 100, using the above-mentioned mould of composite locator 100
Tool is hot-forming, comprises the following steps：
1) mould prepares
Mould first in use, first with cleaning calico the oil stain dust and other impurities of die surface are cleaned out, be used in combination
Acetone wipes die surface, is subsequently placed with 10min or so, coats releasing agent；Preferably, releasing agent is applied 3 times altogether, each time
It is spaced 15min.
2) prepreg 16 is cut
According to topology requirement, blanking figure is designed；Blanking drawing is loaded into cutter；According to drawing requirement, correspondence shape is cut
The prepreg 16 of shape；After the completion of cutting, sealing preserve is carried out to prepreg 16, waits laying to use；During the cutting of prepreg 16 not
Allow any splicing, overlap joint, and the defective position of prepreg 16 will cast out；Wherein, prepreg 16 refers to that resin system impregnates
Continuous fiber or fabric, form resin system and the compound of reinforcement, are the intermediate materials for preparing composite.Prepreg 16
Type has unidirectional pre-immersion material 16, one-way fabric prepreg 16 (weft yarn ＜ 10%), the Fabric prereg 16, (mm of narrow tape prepreg 16
Magnitude), prepegged strands, wrinkle-free Fabric prereg 16 (with reference to suturing skill).
3) paving
First carry out the paving of prepreg 16 respectively on upper mould 4 and lower mould 1, cut to being used beyond sized fraction prepreg 16
Knife etc. is trimmed, and by the angular deviation control of prepreg 16 within the specific limits；As shown in figure 24, first layer prepreg 16
When carrying out paving, part flange 13 is left at the position of rafter bar 105；When the part paving of rafter bar 105 to layer prepreg 16 second from the bottom,
Flange 13 is stayed to dig first layer prepreg 16, last layer of prepreg 16 of the subsequent part of paving rafter bar 105；Such side
Face adds the attractive in appearance of the edge of product rafter bar 105, on the other hand improves to a certain extent actual at A in structural behaviour, figure
Paving is no space, is herein design sketch, structure and position for sake of clarity flange 13.
4) matched moulds
After the completion of upper mould 4 and two parts mould paving of lower mould 1, placement positioning pin 102 and sleeve 103, and by the upper He of mould 4
The lower two parts mould make-up of mould 1, then fastens upper mould 4 and lower mould 1 using cylindrical pins 3 and bolt 7 by the first locating piece 2, and
Clamped in the other end using C-type clamp, to avoid tilting, ensure that upper mould 4 and lower mould 1 are brought into close contact with this, subsequent paving silicon rubber
The part of bar 14, finally by using cylindrical pins 3 and bolt 7 by the first locating piece 2 and the second locating piece 5 fasten upper mould 4 and under
Mould 1；
Due to composite material strength and each opposite sex of rigidity, and the spy such as composite interlayer intensity is relatively low, ductility is small
Point, using metalwork shop bolt 102 and sleeve 103 as locator 100 and the connecting elements of miscellaneous part, in order to ensure carbon
The installation of fiber composite structure part and performance requirement, it is to avoid machining carbon fibre composite matrix, it is fine in carbon
Tie up in composite material structural member forming process, arranged using the technique that hardware is pre-placed on carbon fibre composite matrix
Apply to ensure, i.e. built-in fitting.It is more than the small an order of magnitude of carbon fibre composite linear expansion coefficient compared with aluminium alloy and titanium alloy,
And it is close with stainless steel, carbon fiber locator 100 is higher to structural behaviour, thermal stability requirement, is not suitable for selecting aluminium alloy material
Material is used as built-in fitting；Built-in fitting is used as using stainless steel material.It is generally optional square toes flange, outer to prevent built-in fitting from releasing
Footpath annular knurl, the measures such as alignment pin 6 are played, be embedded in carbon fibre composite matrix.
5) solidify
It is right after the completion of laying vacuum aided material, vacuum aided material placement to the product completed by technological requirement paving
Product vacuum sealing, and carry out on autoclave vacuum degree measurement；Then carry out in product solidification, product solidification process, perform
Solidification record, and curing cycle is set to 120 DEG C/2h；Vacuum aided material refers mainly to airfelt and vacuum bag 12, and wherein mould is whole
Body is wrapped up using airfelt, is then placed into vacuum bag 12 carrying out vacuum sealing；
6) it is stripped
The product of curing molding is stripped, deburring processing.After the completion of solidification, mould is taken out from autoclave,
Remove outsourcing vacuum bag 12 and airfelt；Twisted using inner hexagon spanner and remove whole bolts 7；Again bolt 7 is screwed into the first positioning
In the demoulding screw corresponding with the second locating piece 5 of block 2；Treat that bolt 7 is screwed to a certain degree, mould and product initial gross separation, then
Use nylon releasing key insertion separation gap, the slow mobile demoulding；
Damage mould and product are careful not to, visual inspection product surface answers zero defect, and profile there should not be gross distortion；Through
Cross the analysis to technical process, the critical process identified is cuts, paving, and special procedure is solidification, according to critical process and
The requirement establishment critical process control card and Validation of Special Process table of special process.
Further, the step 2) in also include step：Mark, after the completion of prepreg 16 is cut, in every prepreg 16
Mark is made in front, and mark content includes fiber angles direction and prepreg 16 is numbered.
Further, the prepreg 16 includes unidirectional pre-immersion material 16 and Fabric prereg 16, the step 3) middle requirement list
To the angular deviation of prepreg 16 control at ± 5 °, the angular deviation of Fabric prereg 16 is controlled at ± 6 °.
Further, the step 3) in the laying of prepreg 16 when must overlap, overlap joint scope control is in 10mm~15mm, institute
There is overlapping the slot to stagger.
Further, step 5) described in lay vacuum aided material specifically include successively lay release cloth, non-porous release film,
Silicon rubber, airfelt, vacuum bag 12, the vacuum aided material should leave enough surpluses, and the release cloth and barrier film should
Complete laminating product surface, the silicon rubber complete laminating product after being fixed with pressure sensitive adhesive tape.
Specifically, step 5) described in vacuum degree measurement require that vacuum in more than 850mbar, keeps 3min, vacuum
Decline and be no more than 150mbar, meanwhile, the whole vacuum of product in the curing process is not lower than 800mbar.
Further, in addition to step 7) secondary solidification, article removal complete and deburring after, turning reinforced region surface makes
Polished coarse, filled and process in type groove, and polished flat, last ring winds 2 layers of unidirectional pre-immersion material 16 with 200 mesh sand paper；Paving
After the completion of patch, release cloth, non-porous release film, silicon rubber, airfelt and vacuum bag are laid successively in the cavity positions of rafter bar 105
12, and secondary solidification is carried out, curing cycle is set to 120 DEG C/2h.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, pass through above-mentioned description, related staff
Various changes and amendments can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
It is confined to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (14)
1. a kind of composite locator (100) mould, the cross section of the locator (100) is H types, the H types section bag
Include web (104), and two rafter bars (105) positioned at web (104) two ends, it is characterised in that：Including upper mould (4) and lower mould
(1), the upper mould (4) is used to form girder (101) shape identical type with the locator (100) with lower mould (1) make-up
Chamber；
First locating piece (2) and the second locating piece (5), first locating piece (2) and the second locating piece (5) are located at described respectively
The two ends of die cavity bearing of trend；
It is formed on the first of described upper mould (4) one end connecting portion (4-1) and is formed under the first of described lower mould (1) one end
Connecting portion (1-1), connecting portion (4-1) and first time connecting portion (1-1) are relative up and down on described first, and first locating piece
(2) it is fixedly connected with connecting portion (4-1) on described first and first time connecting portion (1-1)；
And be formed at upper mould (4) other end second on connecting portion (4-2) and be formed at lower mould (1) other end
Second time connecting portion (1-2), connecting portion (4-2) and second time connecting portion (1-2) are relative up and down on described second, and described second
Locating piece (5) is fixedly connected with connecting portion (4-2) on described second and second time connecting portion (1-2).
2. composite locator (100) mould as claimed in claim 1, it is characterised in that：Have on the inside of the upper mould (4)
There is the lower mold forming face (1- formed by lower convex platform on the inside of the upper die forming face (4-3) formed by convex platform, the lower mould (1)
3), the upper die forming face (4-3) forms the die cavity with lower mold forming face (1-3) make-up.
3. composite locator (100) mould as claimed in claim 1, it is characterised in that：First locating piece (2) bag
The first location division (2-1) and the first limiting section (2-2) are included, first location division (2-1) and the first limiting section (2-2) are integrated
The T-shaped structure of connection, first location division (2-1) is plugged in connecting portion (4-1) and first time connecting portion (1- on described first
1) it is fixedly connected between and with connecting portion (4-1) on described first and first time connecting portion (1-1), the first limiting section (2-
2) outside of connecting portion (4-1) and first time connecting portion (1-1) end on described first, and first limiting section are close to
(2-2) upper end is fixedly connected with connecting portion on first (4-1), the first limiting section (2-2) lower end and first time connecting portion (1-
1) it is fixedly connected.
4. composite locator (100) mould as claimed in claim 1, it is characterised in that：Second locating piece (5) bag
The second location division (5-1) and baffle plate (5-2) are included, second location division (5-1) and baffle plate (5-2) are the T-shaped knot that split is connected
Structure, second location division (5-1) be plugged on described second between connecting portion (4-2) and second time connecting portion (1-2) and with
Connecting portion (4-2) is fixedly connected with second time connecting portion (1-2) on described second, and the baffle plate (5-2) is close to described second
Upper connecting portion (4-2) and the outside of second time connecting portion (1-2) end, and connecting portion on the baffle plate (5-2) upper end and second
(4-2) is fixedly connected, and baffle plate (5-2) lower end is fixedly connected with second time connecting portion (1-2).
5. composite locator (100) mould as described in claim any one of 1-4, it is characterised in that：Also include silicon rubber
Adhesive tape (14), silicon rubber bar (14) envelope is located at the both sides of the die cavity.
6. composite locator (100) mould as claimed in claim 5, it is characterised in that：Also include vacuum bag (12), institute
State mould and be integrally located at the vacuum bag (12) inside.
7. a kind of preparation method of composite locator (100), it is characterised in that：Including such as any one of claim 1-6 institutes
Composite locator (100) mould is stated, it is further comprising the steps of：
1) mould prepares
Mould wipes die surface first in use, first clean out the debris of die surface with acetone, is subsequently placed with
10min or so, coats releasing agent；
2) prepreg (16) is cut
According to topology requirement, blanking figure is designed；Blanking drawing is loaded into cutter；According to drawing requirement, correspondingly-shaped is cut
Prepreg (16)；After the completion of cutting, sealing preserve is carried out to prepreg (16), waits laying to use；When prepreg (16) is cut
Do not allow any splicing, overlap joint, and prepreg (16) defective position will cast out；
3) paving
The paving of prepreg (16) is first carried out respectively on upper mould (4) and lower mould (1), to making beyond sized fraction prepreg (16)
Trimmed with scissors etc., and by the angular deviation control of prepreg (16) within the specific limits；First layer prepreg (16) enters
During row paving, part flange (13) is left at rafter bar (105) position；Treat rafter bar (105) part paving to layer prepreg second from the bottom
(16) when, flange (13) is stayed to dig first layer prepreg (16), last layer preimpregnation of subsequent paving rafter bar (105) part
Expect (16)；
4) matched moulds
After the completion of upper mould (4) and lower mould (1) two parts mould paving, placement positioning pin (102) and sleeve (103), and will be upper
Mould (4) and lower mould (1) two parts mould make-up, are then fastened the first locating piece (2) using cylindrical pins (3) and bolt (7)
Upper mould (4) and lower mould (1), and clamped in the other end using C-type clamp, to avoid tilting, upper mould (4) and lower mould (1) are ensured with this
It is brought into close contact, then paving silicon rubber bar (14) part, finally by the first locating piece (2) and the second locating piece (5) fastening
Mould (4) and lower mould (1)；
5) solidify
After the completion of laying vacuum aided material, vacuum aided material placement to the product completed by technological requirement paving, to product
Vacuum sealing, and carry out on autoclave vacuum degree measurement；Then carry out in product solidification, product solidification process, perform solidification
Record, and curing cycle is set to 120 DEG C/2h；
6) it is stripped
The product of curing molding is stripped, after the completion of solidification, mould is taken out from autoclave, removed for deburring processing
Outsourcing vacuum bag (12) and airfelt；Twisted using inner hexagon spanner and remove whole bolts (7)；Again bolt (7) is screwed into first to determine
In position block (2) demoulding screw corresponding with the second locating piece (5)；Treat that bolt (7) is screwed to a certain degree, mould tentatively divides with product
From then using nylon releasing key insertion separation gap, the slow mobile demoulding.
8. the preparation method of composite locator (100) as claimed in claim 7, it is characterised in that：The step 1) in
Releasing agent is applied 3 times altogether, each time interval 15min.
9. the preparation method of composite locator (100) as claimed in claim 7, it is characterised in that：The step 2) in
Also include step：Mark, after the completion of prepreg (16) is cut, mark is made in every prepreg (16) front, content bag is identified
Include fiber angles direction and prepreg (16) numbering.
10. the preparation method of composite locator (100) as claimed in claim 7, it is characterised in that：The prepreg
(16) include unidirectional pre-immersion material (16) and Fabric prereg (16), the step 3) in require unidirectional pre-immersion material (16) angular deviation
Control is at ± 5 °, and Fabric prereg (16) angular deviation is controlled at ± 6 °.
11. the preparation method of composite locator (100) as claimed in claim 7, it is characterised in that：The step 3) in
When prepreg (16) laying must be overlapped, overlap joint scope control is in 10mm~15mm, and all overlapping the slot must stagger.
12. the preparation method of composite locator (100) as claimed in claim 7, it is characterised in that：Step 5) described in
Lay vacuum aided material and specifically include lay release cloth, non-porous release film, silicon rubber, airfelt and vacuum bag (12) successively,
The vacuum aided material should leave enough surpluses, and the release cloth and barrier film should fit product surface, the silicon completely
Rubber complete laminating product after being fixed with pressure sensitive adhesive tape.
13. the preparation method of composite locator (100) as claimed in claim 7, it is characterised in that：Step 5) described in
Vacuum degree measurement requires vacuum in more than 850mbar, keeps 3min, and vacuum, which declines, is no more than 150mbar, meanwhile, product
Whole vacuum in the curing process is not less than 800mbar.
14. the preparation method of composite locator (100) as claimed in claim 7, it is characterised in that：Also include step 7)
Secondary solidification, article removal is completed and after deburring, and turning reinforced region surface polishes coarse using 200 mesh sand paper, in type groove
Filled and process, and polish flat, last ring winds 2 layers of unidirectional pre-immersion material (16)；After the completion of paving, successively lay release cloth,
Non-porous release film, silicon rubber, airfelt and vacuum bag (12), and secondary solidification is carried out, curing cycle is set to 120 DEG C/2h.
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| CN201710358040.7A CN107116811B (en) | 2017-05-19 | 2017-05-19 | Composite material locator mold and manufacturing method of locator |
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| CN201710358040.7A CN107116811B (en) | 2017-05-19 | 2017-05-19 | Composite material locator mold and manufacturing method of locator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130244A (en) * | 2018-10-31 | 2019-01-04 | 山西平阳重工机械有限责任公司 | A kind of molding die and forming method of depth chamber multiwindow composite product |
| CN109955498A (en) * | 2017-12-25 | 2019-07-02 | 深圳光启尖端技术有限责任公司 | The manufacturing method of edge strip after a kind of |
| CN111964537A (en) * | 2020-09-03 | 2020-11-20 | 天津爱思达新材料科技有限公司 | Composite material cross beam and forming tool and forming method thereof |
| CN113172905A (en) * | 2021-05-10 | 2021-07-27 | 威海光威复合材料股份有限公司 | Mold for composite material bulkhead, manufacturing method of bulkhead and bulkhead |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354986A (en) * | 2016-11-03 | 2017-01-25 | 江苏恒神股份有限公司 | High-strength carbon fiber composite locator and method for manufacturing the same |
| CN206983317U (en) * | 2017-05-19 | 2018-02-09 | 中国铁路设计集团有限公司 | Composite locator mould |
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2017
- 2017-05-19 CN CN201710358040.7A patent/CN107116811B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354986A (en) * | 2016-11-03 | 2017-01-25 | 江苏恒神股份有限公司 | High-strength carbon fiber composite locator and method for manufacturing the same |
| CN206983317U (en) * | 2017-05-19 | 2018-02-09 | 中国铁路设计集团有限公司 | Composite locator mould |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955498A (en) * | 2017-12-25 | 2019-07-02 | 深圳光启尖端技术有限责任公司 | The manufacturing method of edge strip after a kind of |
| CN109130244A (en) * | 2018-10-31 | 2019-01-04 | 山西平阳重工机械有限责任公司 | A kind of molding die and forming method of depth chamber multiwindow composite product |
| CN111964537A (en) * | 2020-09-03 | 2020-11-20 | 天津爱思达新材料科技有限公司 | Composite material cross beam and forming tool and forming method thereof |
| CN113172905A (en) * | 2021-05-10 | 2021-07-27 | 威海光威复合材料股份有限公司 | Mold for composite material bulkhead, manufacturing method of bulkhead and bulkhead |
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| Publication number | Publication date |
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| CN107116811B (en) | 2022-09-20 |
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