CN106182814A - A kind of manufacture method of composite wheel hub - Google Patents
A kind of manufacture method of composite wheel hub Download PDFInfo
- Publication number
- CN106182814A CN106182814A CN201610792631.0A CN201610792631A CN106182814A CN 106182814 A CN106182814 A CN 106182814A CN 201610792631 A CN201610792631 A CN 201610792631A CN 106182814 A CN106182814 A CN 106182814A
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- wheel hub
- preform
- resin
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000011347 resin Substances 0.000 claims abstract description 43
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000007711 solidification Methods 0.000 claims description 10
- 230000008023 solidification Effects 0.000 claims description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 125000000623 heterocyclic group Chemical group 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 238000005194 fractionation Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 229920002748 Basalt fiber Polymers 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000004643 cyanate ester Substances 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920001225 polyester resin Polymers 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 230000001112 coagulating effect Effects 0.000 claims 2
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical compound C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 claims 1
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 claims 1
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 claims 1
- 239000010426 asphalt Substances 0.000 claims 1
- 239000003925 fat Substances 0.000 claims 1
- 239000012779 reinforcing material Substances 0.000 abstract description 11
- 239000012783 reinforcing fiber Substances 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 27
- 238000013461 design Methods 0.000 description 12
- 238000007493 shaping process Methods 0.000 description 9
- 239000006260 foam Substances 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 235000004418 Durio kutejensis Nutrition 0.000 description 3
- 240000002669 Durio kutejensis Species 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 150000008064 anhydrides Chemical class 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000001195 anabolic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- 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
- B29C70/36—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 impregnating by casting, e.g. vacuum casting
-
- 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
- B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The present invention relates to the manufacture method of a kind of composite wheel hub, previously fabricated reinforcing fiber preform is filled in a mold cavity closed, evacuation in the mold cavity that will close, then is injected into resin system in die cavity by compressed air, cured after obtain composite wheel hub.Resin by injection system of the present invention is injected in mould by compressed gas, and keep pressure a period of time after injection terminates, make acceptable reinforcing material volume content strengthen, reach the purpose that reinforcing material volume content is controlled, and then control and improve the mechanical strength of wheel hub.The composite wheel hub that the present invention manufactures, voidage is extremely low, fiber content is high, fiber is evenly distributed in composite structure, corrugationless, further, owing to the manufacture of preform can be carried out with piecemeal, complicated Disassembling Products can be become the combination of simple shape parts, production efficiency is high, quality controllable, stable.
Description
Technical field
The present invention relates to a kind of manufacturing method of wheel hub, a kind of side being manufactured composite wheel hub by preform
Method.
Background technology
Alleviate car mass, reduction fuel oil consumption and minimizing exhaust emission and become the key problem of automobile industry development, car
Wheel is one of important safety parts of automobile, as the nonspring carried mass of automobile, its quality alleviate alleviating than miscellaneous part
More important.Carbon composite is used to manufacture automotive hub than aluminium alloy wheel hub loss of weight 20～40% at present.The most existing vapour
Wheel hub production method has prepreg method, and its step is the one piece of preimpregnation that will slightly cut out on a ready formpiston or former
The shape sanction that tablet lay requires to die surface according still further to mould goes unnecessary part, according to level, the machine direction of design
Every layer carries out different changes, ceaselessly to catch up with pressure so that fitting between layers and reducing bubble by artificial simultaneously.Additionally
Prepreg laying forming also can be divided into vacuum bag molded and to mould extrusion forming.Can be compared although vacuum bag is molded
Closely knit product structure, but it can only ensure the one side size of product, and the size of product opposite side needs to carry out secondary again and adds
Work.Although mould extrusion forming can be obtained the two-sided dimensional accuracy of product, but due to each artificial lay discreteness,
The discreteness of prepreg resin content has resulted in the inhomogeneities of interiors of products quality, usually produces internal flaw, as bubble,
Lean glue, fiber fold etc., and the method a large amount of manual operations of needs, manpower and materials consume big, have bigger shadow to properties of product
Ring, should not produce in enormous quantities.
Also have a kind of method manufacturing wheel hub introduced by patent CN 102653138 A, mainly use resin vacuum to lead
Entering technique and manufacture a hollow wheel hub without spoke, resin vacuum introducing technology is by passing through evacuation in die cavity simultaneously
Resin is imported to the method for then curing molding in fibre structure by outside atmospheric pressure.But this method disadvantageously,
Because it is that nature sucks resin, fiber content is low, and its wheel hub manufactured does not has spoke, has harsh knot so can not manufacture
Structure performance requirement, complex-shaped single piece type automotive hub.
Summary of the invention
In order to overcome said method shortcoming, the present invention is by making one in advance with the fibre reinforced materials without resin system
Individual or multiple preforms, are then filled in a mold cavity closed, evacuation in the mold cavity that will close, then with compressing
Resin system is injected in die cavity by gas, cured after obtain composite wheel hub.
Preferably, described preform is made up of one or more preforms.
Preferably, described fibre reinforced materials is fiber, fabric or its mixture；Described fiber, is glass fibre, carbon fibre
Dimension, aramid fiber, basalt fibre, organic fiber or the wherein assorted fibre of more than two kinds.
Preferably, described resin system is epoxy resin, phenolic resin, polyester resin, cyanate ester resin, multicomponent heterocycle tree
One or two or more kinds in fat and corresponding firming agent thereof.
Preferably, described compressed gas is the air being dried or the nitrogen of compression.
Preferably, described evacuation, its vacuum is 1～100Pa；Resin system is injected into mould by described compressed gas
In chamber, injecting air pressure is 1～7MPa, keeps pressure 1～30min after injection.
Concretely comprising the following steps of said method:
1) the two or more structure split into by laying and the technological requirement of product by overall wheel hub structure is as preformation
Body models is fabricated to preform；
2) above-mentioned preform is placed according to fractionation order the entirety of the closing designed according to overall wheel hub structure
Mould in, close mould, mould whole constant temperature preheated, the temperature of above-mentioned constant temperature preheating is less than the resin system that will inject
Gelling temp, die cavity evacuation；
3) by compressed gas, the resin system of preheating is injected in mould, inject and after terminating, stop evacuation, keep
Pressure a period of time；Or first stop evacuation, and by compressed gas, the resin system of preheating to be injected in mould, injection terminates
After, keep pressure a period of time；
4) being heating and curing by mould, solidification end is dismantled mould after being cooled to room temperature and is taken out product.
The present invention, before resin by injection system in mould, evacuation, according to gas equation (when constant temperature) airtight
Space (gas flow is without increase and decrease), it is known that P1V1=P2V2, (P is gas pressure intensity；V is gas volume) at V1The space gases pressure of volume
Power is 1Pa air pressure, when only injecting liquid resin system with 1MPa pressure in space, according to the original 1Pa of the equilibrium principle of power
The gas pressure of pressure will rise to 1MPa, and the gas originally occupying whole space can only be occupied original sky by what resin extruded
Between 1/1000000th i.e. V2=V1P1/P2, then V2=0.000001V1.Define with the ratio of bubble volume with whole small product size
For voidage, voidage the most now is 0.0001%, and uses its voidage of product of prepeg process molding to be more than more
0.1%；Resin by injection system of the present invention is injected in mould by compressed gas, and keeps pressure a period of time after injection terminates
Delayed with overcome viscosity flow liquid to flow in slight void, make resin be easier to inject in the reinforcing material that laying density is big,
Make acceptable reinforcing material volume content strengthen, reach the purpose that reinforcing material volume content is controlled, and then control and improve
The mechanical strength of wheel hub.The composite wheel hub that the present invention manufactures, voidage is extremely low, and fiber content is high, and fiber is at composite
Structure is evenly distributed, corrugationless, and, owing to the manufacture of preform can be carried out with piecemeal, can be by complicated Disassembling Products
Becoming the combination of simple shape parts, see accompanying drawing 1,2, therefore, production efficiency is high, quality controllable, stable.
Accompanying drawing explanation
Fig. 1 is that preform decomposes and anabolic process schematic diagram, and wherein I represents that wheel hub Whole structure model a is through splitting
After make wheel rim preform b ', core wheel preform c ', the process of spoke preform d ', II represents preform group again
Process in the wheel hub loading unitary mould that synthesis is overall.
Fig. 2 is the wheel hub structure that embodiment 1 designs mould, and wherein (a) is wheel hub Whole structure model, (b), (c), (d)
Being respectively the structural model for manufacturing preform split according to overall structure, (b) is wheel rim preform model,
C () is core wheel preform model, (d) is spoke preform model.
Fig. 3 is the wheel hub product surface photo that embodiment 1 manufactures.
Fig. 4 is the cross sectional photograph of the wheel hub product that embodiment 1 manufactures.
Fig. 5 is the surface picture of the wheel hub product that comparative example 1 manufactures.
Fig. 6 is the cross sectional photograph of the wheel hub product that comparative example 1 manufactures.
Detailed description of the invention
Embodiment 1 manufactures carbon/epoxy composite material wheel hub
1, manufacture preform
1) overall wheel hub structure (shown in Fig. 2 (a)) is split into three separation structures by laying and the technological requirement of product
(shown in Fig. 2 (b), (c), (d)), as preform model, according to preform design and manufacture of casting mould mould, presses design laying
Requirement pre-cut reinforcing material (T-700 carbon fiber and fabric)；By the reinforcing material that cuts out in advance by Design hierarchy requirement and suitable
Sequence lay in the mould manufactured and designed, every lay one layer dispense 2 grams of shaping glues, whole level laies complete after clamping mold,
Heat-shaping, 2 hours heat time heating times, heating-up temperature 130Shi degree, the burr that after being cooled to room temperature, cutting is exposed, suppress wheel respectively
Core preforming body (1), spoke preform (2), wheel rim preform (3),
2) after heat-shaping, the demoulding is taken out standby；
2, wheel hub manufacture
1) surface of the unitary mould disassembled applied one layer of releasing agent and heat 120 degrees Celsius, constant temperature 2 hours；
2) at the one layer of releasing agent of unitary mould surface coating contacted with product, 120 degrees Celsius are heated, constant temperature 2 hours；Go out
40 degrees Celsius it are cooled to after baking oven, with the unnecessary stain on cleaning cotton wiping die tool surface, shinny to die surface；
3) preform is split position relationship according to model and order is placed in unitary mould (see Fig. 1), close mould
Tool, is placed in baking oven preheating 80 DEG C/4 hours by closed mould, and evacuation, to resin by injection initial vacuum degree 1Pa；
4) preparation resin system.By the preheating 60 DEG C/2 the most in an oven of epoxy resin, anhydride curing agent consumption on request
Hour, by epoxy resin before using: anhydride curing agent: accelerator is in the ratio mix homogeneously of 100:90:1.
5) close vacuum equipment, by dry compressed air, the resin system of preheating is injected in mould, air pressure
7MPa, pressurize 30 minutes, closed mould is moved into baking oven for heating solidification, 120 DEG C, curing cycle 80 DEG C/2 hour/2 hour 160
DEG C/4 hours, solidification removes the closed mould of cooling from baking oven after terminating, unload the bolt of closed mould, decomposes mould and takes out
Wheel hub.
Products obtained therefrom is as shown in Figure 3, it is seen that the hub surface that the method provided according to the present invention manufactures is without any modification
I.e. can get good appearance；Fig. 4 is the section that the present embodiment manufactures wheel hub, it is seen that the method system provided according to the present invention
The product made, close structure, voidage is low；Through the experiment of 500kg, 230mm falling impacts and crooked fatigue experiment 3000Nm.
Embodiment 2 manufactures carbon/phenolic composite wheel hub
1, manufacture preform
1) overall wheel hub structure (shown in Fig. 2 (a)) is split into three separation structures by laying and the technological requirement of product
(shown in Fig. 2 (b), (c), (d)), as preform model, according to preform design and manufacture of casting mould mould, presses design laying
Requirement pre-cut reinforcing material (T-700 carbon fiber and fabric)；By the reinforcing material that cuts out in advance by Design hierarchy requirement and suitable
Sequence lay in the mould manufactured and designed, every lay one layer dispense 2 grams of shaping glues, whole level laies complete after clamping mold,
Heat-shaping, 2 hours heat time heating times, heating-up temperature 130Shi degree, the burr that after being cooled to room temperature, cutting is exposed, it is pressed into respectively
Core wheel preform (1), spoke preform (2), wheel rim preform (3),
2) after heat-shaping, the demoulding is taken out standby；
2, wheel hub manufacture
1) surface of the unitary mould disassembled applied one layer of releasing agent and heat 120 degrees Celsius, constant temperature 2 hours；
2) at the one layer of releasing agent of unitary mould surface coating contacted with product, 120 degrees Celsius are heated, constant temperature 2 hours；Go out
40 degrees Celsius it are cooled to after baking oven, with the unnecessary stain on cleaning cotton wiping die tool surface, shinny to die surface；
3) preform is split position relationship according to model and order is placed in unitary mould, close mould, will envelope
Mold closing tool is placed in baking oven preheating 100 DEG C/4 hours, and evacuation, to resin by injection initial vacuum degree 50Pa；
4) preparation resin system.The phenol-formaldehyde resin modified that the present embodiment uses is one-component system, and consumption is drying on request
Case preheats 100 DEG C/2 hours, standby.
5) by deployed resin system by, in compressed nitrogen addition q.s to mould, making air pressure in resin container slow
Rising to 5MPa, pressurize 20 minutes, closed mould moves into baking oven for heating solidification, curing cycle 180 DEG C/6 hours, after solidification terminates
From baking oven, remove the closed mould of cooling, unload the bolt of closed mould, decompose mould and take out.
Embodiment 3 glass fibre/multicomponent heterocycle resinoid composite wheel hub
1, manufacture preform
1) overall wheel hub structure (shown in Fig. 2 (a)) is split into three separation structures by laying and the technological requirement of product
(shown in Fig. 2 (b), (c), (d)), as preform model, according to preform design and manufacture of casting mould mould, presses design laying
Requirement pre-cut reinforcing material (T-700 carbon fiber and fabric)；By the reinforcing material that cuts out in advance by Design hierarchy requirement and suitable
Sequence lay in the mould manufactured and designed, every lay one layer dispense 2 grams of shaping glues, whole level laies complete after clamping mold,
Heat-shaping, 2 hours heat time heating times, heating-up temperature 130Shi degree, the burr that after being cooled to room temperature, cutting is exposed, it is pressed into respectively
Core wheel preform (1), spoke preform (2), wheel rim preform (3),
2) after heat-shaping, the demoulding is taken out standby；
2, wheel hub manufacture
1) surface of the unitary mould disassembled applied one layer of releasing agent and heat 120 degrees Celsius, constant temperature 2 hours；
2) at the one layer of releasing agent of unitary mould surface coating contacted with product, 120 degrees Celsius are heated, constant temperature 2 hours；Go out
40 degrees Celsius it are cooled to after baking oven, with the unnecessary stain on cleaning cotton wiping die tool surface, shinny to die surface；
3) preform is split position relationship according to model and order is placed in unitary mould, close mould, will envelope
Mold closing tool is placed in baking oven preheating 60 DEG C/4 hours, and evacuation, to resin by injection initial vacuum degree 100Pa；
4) preparation resin system.Multicomponent heterocycle resinoid system (fire resistant resin system), consumption is in an oven on request
Preheat 170 DEG C/2 hours, standby.
5) by deployed resin system by, in compressed nitrogen addition q.s to mould, making air pressure in resin container slow
Rising to 1MPa, pressurize 1 minute, closed mould moves into baking oven for heating solidification, curing cycle 240 DEG C/4 hours, after solidification terminates
From baking oven, remove the closed mould of cooling, unload the bolt of closed mould, decompose mould and take out.
Comparative example 1
1 die treatment
1) use the unitary mould that embodiment 1 manufactures, the surface of the unitary mould disassembled is applied one layer of releasing agent；
2) at the one layer of releasing agent of unitary mould surface coating contacted with product；
2, prepreg cutting
Standby by the laying of design, quantity, angle, shape cutting prepreg sheet material (T-700 carbon fiber and fabric).
3, preformation core is manufactured
1) the preform core mold handled well is taken out.Preparation foam material, mixes with the ratio of component A, B component each 50%
Pouring into the most rapidly in die cavity, pouring volume is 10 grams, and matched moulds clamps, and sends into baking oven.Solidification end is cooled to room temperature, takes out foam core
Material, repeats said process, produces 5 same foam cores.
2) preformation core
A, takes out single foam core, thereon by the laying number of plies, laying angle, ply stacking-sequence parcel prepreg overlay.
Repeat said process, produce 5 same foam core prepreg wrap members, send into baking oven for heating 60 DEG C/1 hour, then wrap up
Bag vacuum, takes out after being cooled to room temperature, removes vacuum bag, take out foam core material prepreg wrap member.
B, at the upper lay prepreg of preforming core lower mould (formpiston), by the laying number of plies, laying angle, ply stacking-sequence
Lay prepreg overlay 1, above-mentioned laying is placed foam core material prepreg wrap member in spoke architecture position after completing, is then existed
By the laying number of plies, laying angle, ply stacking-sequence parcel prepreg overlay 2 around foam core material prepreg wrap member, by laying layer
Number, laying angle, ply stacking-sequence are at core wheel position lay prepreg overlay 3.Laying wraps up bag vacuum after terminating, and sends into
Baking oven for heating 60 DEG C/2 hours, is cooled to room temperature and takes out, remove vacuum bag, and upper mold of closing (former) is also clamped by bolt upper and lower mould
To requiring position, sending into baking oven for heating 60 DEG C/2 hours, take out after being cooled to room temperature, it is standby that removing upper and lower mould obtains preformation core
With.
4, Integral hub molding
Get out Integral hub mould, lay prepreg on formpiston.Wheel rim, spoke, core wheel respectively by the different number of plies,
Angle and order laying.
A, first lay prepreg at core wheel, then at rim lay prepreg, extend prepreg the most continuously simultaneously
To core wheel initial point；Laying surplus is reserved at spoke core wheel edge during lay spoke laying；
B, upper preformation core, then spoke both sides are reserved laying to upper overturning parcel spoke and core wheel both sides stile；Lay
Laying on spoke core wheel, reserves the downward flange of laying surplus, parcel spoke and the stile of core wheel simultaneously by spoke core wheel；All pavings
Layer wraps up vacuum bag after terminating, and evacuation also sends into baking oven for heating 100 DEG C/2 hours；It is cooled to when 60 DEG C go out baking oven, closes former,
With bolt, female mould is clamped, send into curing oven, 160 DEG C/4 hours, 120 DEG C, curing cycle 80 DEG C/2 hour/2 hour.Gu
Changing and be cooled to room temperature after terminating, come out of the stove, dismounting mould takes out product.
The wheel hub outward appearance that prepreg method manufactures is defective, and out-of-flatness is rough, and the wheel hub structure that the method manufactures is the finest and close,
Fibrous layer has flexing, and bubble is many, can affect greatly performance.
Fig. 5 is shown in by gained hub surface photo, it is seen that the wheel hub outward appearance that prepreg method manufactures is defective, and out-of-flatness is rough,
Fig. 6 is the cross sectional photograph that wheel hub is in kind, it is seen that the wheel hub structure that the method manufactures is the finest and close, and bubble is many, can cause performance relatively
Big impact.
Claims (9)
1. the manufacture method of a composite wheel hub, it is characterised in that: in advance fibre reinforced materials is made preform and fill out
Fill in a mold cavity closed, evacuation in the mold cavity that will close, then by compressed gas, resin system is injected into mould
In chamber, cured after obtain composite wheel hub.
2. the manufacture method of the composite wheel hub as described in claim 1, it is characterised in that: described preform is by one
Or multiple preform composition.
3. the manufacture method of the composite wheel hub as described in claim 2, it is characterised in that: described fibre reinforced materials is fine
Dimension, fabric or its mixture；Described fiber, be glass fibre, carbon fiber, aramid fiber, basalt fibre, organic fiber or its
In the assorted fibre of more than two kinds.
4. the manufacture method of the composite wheel hub as described in claim 2, it is characterised in that: described resin system is asphalt mixtures modified by epoxy resin
In fat, phenolic resin, polyester resin, cyanate ester resin, multicomponent heterocycle resin one or two or more kinds and solidify accordingly
Agent.
5. as described in claim 2 the manufacture method of composite wheel hub, it is characterised in that: described compressed gas is compression
Be dried air or nitrogen.
6. by the manufacture method of the arbitrary described composite wheel hub of claim 3-5, it is characterised in that: described evacuation,
Its vacuum is 1～100Pa；Resin system is injected in die cavity by described compressed gas, and injecting air pressure is 1～7MPa.
7. as described in claim 6 the manufacture method of composite wheel hub, it is characterised in that: described compressed gas will tree
Resin system is injected in die cavity, keeps pressure 1～30min after injection.
8. by described method arbitrary in claim 1-5 or claim 7, it is characterised in that: concretely comprise the following steps:
1) the two or more structure split into by laying and the technological requirement of product by overall wheel hub structure is as preform
Modelling becomes preform；
2) above-mentioned preform is placed according to fractionation order the overall mould of the closing designed according to overall wheel hub structure
In tool, close mould, mould whole constant temperature is preheated, temperature the coagulating less than the resin system that will inject of above-mentioned constant temperature preheating
Glue temperature, die cavity evacuation；
3) by compressed gas, the resin system of preheating is injected in mould, inject and after terminating, stop evacuation, keep pressure
A period of time；Or first stop evacuation, by compressed gas, the resin system of preheating is injected in mould, injects after terminating,
Keep pressure a period of time；
4) being heating and curing by mould, solidification end is dismantled mould after being cooled to room temperature and is taken out product.
9. the method as described in claim 6, it is characterised in that: concretely comprise the following steps:
1) the two or more structure split into by laying and the technological requirement of product by overall wheel hub structure is as preform
Modelling becomes preform；
2) above-mentioned preform is placed according to fractionation order the overall mould of the closing designed according to overall wheel hub structure
In tool, close mould, mould whole constant temperature is preheated, temperature the coagulating less than the resin system that will inject of above-mentioned constant temperature preheating
Glue temperature, die cavity evacuation；
3) by compressed gas, the resin system of preheating is injected in mould, inject and after terminating, stop evacuation, keep pressure
A period of time；Or first stop evacuation, by compressed gas, the resin system of preheating is injected in mould, injects after terminating,
Keep pressure a period of time；
4) being heating and curing by mould, solidification end is dismantled mould after being cooled to room temperature and is taken out product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110741474.1A CN113500799A (en) | 2016-08-31 | 2016-08-31 | Preform for composite hub molding and hub molding method |
| CN201610792631.0A CN106182814A (en) | 2016-08-31 | 2016-08-31 | A kind of manufacture method of composite wheel hub |
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| CN201610792631.0A CN106182814A (en) | 2016-08-31 | 2016-08-31 | A kind of manufacture method of composite wheel hub |
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| CN202110741474.1A Division CN113500799A (en) | 2016-08-31 | 2016-08-31 | Preform for composite hub molding and hub molding method |
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| CN106182814A true CN106182814A (en) | 2016-12-07 |
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| CN201610792631.0A Pending CN106182814A (en) | 2016-08-31 | 2016-08-31 | A kind of manufacture method of composite wheel hub |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106696306A (en) * | 2016-12-21 | 2017-05-24 | 中信戴卡股份有限公司 | Carbon fiber composite material wheel and manufacturing method thereof |
| CN106827951A (en) * | 2017-01-12 | 2017-06-13 | 张彤 | A kind of composite wheel hub |
| CN107901452A (en) * | 2017-11-15 | 2018-04-13 | 吴波 | A kind of composite material wheel hub |
| CN108656578A (en) * | 2018-03-27 | 2018-10-16 | 大亚车轮制造有限公司 | A kind of production method of carbon fiber automotive hub |
| CN109049759A (en) * | 2018-09-25 | 2018-12-21 | 北航（四川）西部国际创新港科技有限公司 | Composite material wheel hub and its manufacturing method |
| CN110466174A (en) * | 2018-05-11 | 2019-11-19 | 上海轩创汽车科技有限公司 | A kind of carbon fiber automotive hub and preparation method thereof |
| US20200070440A1 (en) * | 2017-03-07 | 2020-03-05 | Ri-Ba Composites S.R.L. | Method for providing wheels for motor vehicles, and associated wheels |
| CN111247005A (en) * | 2017-08-18 | 2020-06-05 | 碳革命有限公司 | Shaped preforms for spoke sections of composite wheels |
| CN113255056A (en) * | 2021-05-06 | 2021-08-13 | 中国第一汽车股份有限公司 | Design method of integral carbon fiber composite hub |
| CN113733596A (en) * | 2021-08-30 | 2021-12-03 | 北京航空航天大学 | Composite material light undercarriage wheel structure and forming method thereof |
| CN114368178A (en) * | 2021-12-16 | 2022-04-19 | 捷和电机制品(深圳)有限公司 | Manufacturing method of hub and manufacturing method of omni wheel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106696306A (en) * | 2016-12-21 | 2017-05-24 | 中信戴卡股份有限公司 | Carbon fiber composite material wheel and manufacturing method thereof |
| CN106827951A (en) * | 2017-01-12 | 2017-06-13 | 张彤 | A kind of composite wheel hub |
| US20200070440A1 (en) * | 2017-03-07 | 2020-03-05 | Ri-Ba Composites S.R.L. | Method for providing wheels for motor vehicles, and associated wheels |
| US11718048B2 (en) * | 2017-03-07 | 2023-08-08 | Bucci Composites S.P.A. | Method for providing wheels for motor vehicles, and associated wheels |
| CN111247005A (en) * | 2017-08-18 | 2020-06-05 | 碳革命有限公司 | Shaped preforms for spoke sections of composite wheels |
| CN107901452A (en) * | 2017-11-15 | 2018-04-13 | 吴波 | A kind of composite material wheel hub |
| CN108656578A (en) * | 2018-03-27 | 2018-10-16 | 大亚车轮制造有限公司 | A kind of production method of carbon fiber automotive hub |
| CN110466174A (en) * | 2018-05-11 | 2019-11-19 | 上海轩创汽车科技有限公司 | A kind of carbon fiber automotive hub and preparation method thereof |
| CN109049759A (en) * | 2018-09-25 | 2018-12-21 | 北航（四川）西部国际创新港科技有限公司 | Composite material wheel hub and its manufacturing method |
| CN113255056A (en) * | 2021-05-06 | 2021-08-13 | 中国第一汽车股份有限公司 | Design method of integral carbon fiber composite hub |
| CN113255056B (en) * | 2021-05-06 | 2022-12-27 | 中国第一汽车股份有限公司 | Design method of integral type carbon fiber composite hub |
| CN113733596A (en) * | 2021-08-30 | 2021-12-03 | 北京航空航天大学 | Composite material light undercarriage wheel structure and forming method thereof |
| CN114368178A (en) * | 2021-12-16 | 2022-04-19 | 捷和电机制品(深圳)有限公司 | Manufacturing method of hub and manufacturing method of omni wheel |
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