CN104960581A - Automobile rear floor made from composite materials and manufacturing method of automobile rear floor - Google Patents
Automobile rear floor made from composite materials and manufacturing method of automobile rear floor Download PDFInfo
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- CN104960581A CN104960581A CN201510428226.6A CN201510428226A CN104960581A CN 104960581 A CN104960581 A CN 104960581A CN 201510428226 A CN201510428226 A CN 201510428226A CN 104960581 A CN104960581 A CN 104960581A
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- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 229920005989 resin Polymers 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 38
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 17
- 239000004917 carbon fiber Substances 0.000 claims abstract description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 32
- 239000004744 fabric Substances 0.000 claims description 30
- 239000004745 nonwoven fabric Substances 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 230000008676 import Effects 0.000 claims description 12
- 239000012459 cleaning agent Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000004643 cyanate ester Substances 0.000 claims description 2
- 125000003700 epoxy group Chemical group 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 238000001721 transfer moulding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000005498 polishing Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 229920006332 epoxy adhesive Polymers 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
Abstract
The invention discloses an automobile rear floor made from composite materials and a manufacturing method of the automobile rear floor. The automobile rear floor is made from the following materials of a resin layer (102), a glass fiber layer (103), a carbon fiber layer (104), a glass fiber layer (103) and a resin layer (102) which are sequentially stacked, wherein the glass fiber layers (103) and the carbon fiber layer (104) are infiltrated with resins, so that the automobile rear floor can realize a lightweight effect of 40-60% under the condition that the requirements for rigidity/strength/load are met.
Description
Technical field
The present invention relates to a kind of body structure, be specifically related to floor and preparation method thereof after a kind of composite material automobile.
Background technology
Automobile rear floor is an overall punch components normally, is then bolted or welds to be connected with floor bearer and the miscellaneous part such as wheel support, wheel support welded nut.
Realizing in process of the present invention, contriver finds that prior art at least exists following problem: automobile rear floor has massive feature, and the panel beating adopted is thinner, there is the larger problem of punching press resilience at production link, and easily produce distortion at transit link.
Summary of the invention
Technical matters to be solved by this invention is to provide and is a kind ofly reinforcing material by glass fibre and carbon fiber, is that matrix making, when meeting rigidity/intensity/load, can realize floor and preparation method thereof after the composite material automobile of the light weight effect of 40% ~ 60% with resin.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: floor after a kind of composite material automobile, and automobile rear floor material is:
The resin bed be cascading, glass layer, carbon fiber layer, glass layer and resin bed, wherein, described glass layer and carbon fiber layer infiltrate resin.
Described carbon fiber layer has 16 layers, and fiber angles is that the carbon fiber layer of 0 °, 90 °, 45 ° ,-45 ° stacks gradually is one group, superposes four groups altogether.
Spare tyre fixed support and rear floor are integral type structure.
Spare tyre clamp nut is bonded on spare tyre fixed support by bonding layer.
After above-mentioned composite material automobile, the method for making on floor, comprises the steps:
1) on mould, glass fabric, carbon cloth and glass fabric is stacked successively;
2) then matched moulds, imports resin, makes resin solidification shaping afterwards, the demoulding;
3) according to rear ground board size, floor after made composite material automobile is cut.
The ply sequence of carbon cloth is [0/90/45/-45]
4, namely fiber angles is that the carbon fiber layer of 0 °, 90 °, 45 ° ,-45 ° stacks gradually is one group, superposes four groups altogether.
Before 1 step, glass fabric, carbon cloth is cut according to the size of automobile rear floor, then use die cleaning agent to carry out clean to mould, uniform application mold release after dry, to smear evenly lay glass fabric, carbon cloth and glass fabric successively; Described smearing release agent dips mold release in the even wiping of die surface for adopting nonwoven fabrics, naturally 2 ~ 10 minutes are hung after wiping, and then with clean nonwoven fabrics in die surface wiping, again dip mold release at die surface uniform application mold release with nonwoven fabrics after wiping, smear 2 ~ 3 times.
After the 3rd step, adhesion agent is adopted spare tyre clamp nut and spare tyre fixed support to be glued together; Described adhesion agent is epoxies structural adhesion, before glueing joint, carries out grinding process and clean up with 400 ~ 800 order waterproof abrasive papers to splicing face, then rinses with absolute ethyl alcohol, glueds joint after dry, and solidify 2 ~ 4 hours at 120 ~ 150 DEG C.
Described glass fabric is E-glass, R-glass or S-glass glass fibre drill weave, and described carbon cloth is 3K ~ 24K unidirectional lamination; Described resin is epoxy-resin systems or cyanate ester resin system; Resin cure temperature is 25 ~ 130 DEG C, cure time 2 ~ 24 hours.
Described resin imports as malleation or the auxiliary importing of negative pressure, as adopted resin transfer molding technique, then needs the pressure of applying 0.1 ~ 0.2MPa to import resin; As adopted vacuum bag compression technology, then need to import resin under-0.1 ~-0.2MPa.
Described die cleaning agent is acetone or other commodity mould cleaners.
Described mold release is demoulding wax or liquid release agent.
After described composite material automobile, floor cutting adopts Water Cutting technique.
A technical scheme tool in technique scheme has the following advantages or beneficial effect:
1) after composite material automobile, floor is lightweight, compared with the automobile rear floor loss of weight 45% ~ 60% that plain metal sheet metal component makes under equal rigidity;
2) floor global formation after automobile rear floor spare tyre fixed support and composite material, reduces assembling station;
3) after the composite material automobile made by installation, the body in white first rank torsion mode on floor is 22.3 ~ 28.6Hz, and mode of flexural vibration is 54.4 ~ 57.5Hz, and rigidity reaches 71.9 ~ 322.0N/mm, is better than the floor that sheet metal component makes.
Accompanying drawing explanation
Fig. 1 is the material structure figure on floor after the composite material automobile that provides in the embodiment of the present invention;
Fig. 2 is the structural representation on floor after the composite material automobile that provides in the embodiment of the present invention;
Fig. 3 is the cutaway view of Fig. 2;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the cementing structural representation having floor after the composite material automobile of spare tyre clamp nut;
Fig. 6 is the partial enlarged drawing of Fig. 5;
Mark in above-mentioned figure is: 1, rear floor, and 101, connecting through hole, 102, resin bed, 103, glass layer, 104, carbon fiber layer, 2, spare tyre fixed support, 201, wheel support through hole, 3, spare tyre clamp nut, 301, screw, 4, bonding layer.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
Floor after a kind of composite material automobile, automobile rear floor material is:
As shown in Figure 1, the resin bed 102 be cascading, glass layer 103, carbon fiber layer 104, glass layer 103 and resin bed 102, wherein, glass layer 103 and carbon fiber layer 104 infiltrate resin.Glass layer 103 is for preventing electric capacity corrosion.
Carbon fiber layer 104 has 16 layers, and fiber angles is that the carbon fiber layer 104 of 0 °, 90 °, 45 ° ,-45 ° stacks gradually is one group, superposes four groups altogether.
As in Figure 2-4, spare tyre fixed support 2 and rear floor 1 are integral type structure.After composite material automobile, floor is made up of rear floor 1, spare tyre fixed support 2, spare tyre clamp nut 3, bonding layer 4, connecting through hole 101, wheel support through hole 201, screw 301 etc.Wherein after composite material, floor and spare tyre fixed support 2 adopt integral forming technique, and spare tyre clamp nut 3 is linked together by bonding layer 4 and spare tyre fixed support 2.
As illustrated in Figures 5 and 6, spare tyre clamp nut 3 is bonded on spare tyre fixed support 2 by bonding layer 4.
Embodiment two
The present embodiment provides floor and preparation method thereof after a kind of composite material automobile, after composite material automobile, floor is gluedd joint by floor after composite material 1 and spare tyre clamp nut 3 and is formed, specifically comprise the following steps: adopt nonwoven fabrics to dip acetone cleaning die, naturally drying is placed after clean, then demoulding wax is dipped in the even wiping of die surface with nonwoven fabrics, naturally hang 10 minutes and again dip the even wiping of demoulding wax with nonwoven fabrics, clean nonwoven fabrics wiping die surface is separately got after again hanging 10 minutes, remove unnecessary demoulding wax, then according to [0/90/45/-45]
4the unidirectional carbon cloth of lay 3K, lay one deck E-glass glass fibre drill weave is respectively needed before carbon cloth lay and after lay, then according to vacuum bag compression technology successively lay release cloth, flow-guiding screen and conduction pipe, seal with vacuum bag and connect vacuum pump, 5222 resins are imported under-0.1MPa, first at room temperature solidify 12 hours after resin imports, then remove vacuum bag, at 120 DEG C, solidify 1 hour again.Curing and demolding, adopts Water Cutting excision leftover pieces, obtains floor after composite material.Then glued joint face with 600 order waterproof abrasive papers to spare tyre fixed support 2 and spare tyre clamp nut 3 to polish, rinse well with water behind the surface that polishing makes new advances, then rinse with absolute ethyl alcohol, and at 80 DEG C dry 0.5 hour, at polishing region uniform application DP-460 epoxy adhesive after drying, solidify 2 hours at 120 DEG C, obtain floor after composite material automobile.Carry out mould measurement after being installed on body in white, single order torsion mode reaches 22.3Hz, and mode of flexural vibration reaches 54.4Hz, and rigidity reaches 71.9N/mm, and light weight degree reaches 58.6%.
Embodiment three
The present embodiment provides floor preparation method after a kind of composite material automobile, specifically comprise the following steps: adopt nonwoven fabrics to dip die cleaning agent cleaning die, naturally drying is placed after clean, then die cleaning agent is dipped in the even wiping of die surface with nonwoven fabrics, naturally hang 5 minutes and again dip the even wiping of die cleaning agent with nonwoven fabrics, separately get clean nonwoven fabrics wiping die surface after again hanging 5 minutes, remove unnecessary die cleaning agent, then according to [0/90/45/-45]
4the unidirectional carbon cloth of lay 12K, lay one deck R-glass glass fibre drill weave is respectively needed before carbon cloth lay and after lay, then according to vacuum bag compression technology successively lay release cloth, flow-guiding screen and conduction pipe, seal with vacuum bag and connect vacuum pump, 5222 resins are imported under-0.1MPa, first at room temperature solidify 12 hours after resin imports, then remove vacuum bag, at 120 DEG C, solidify 1 hour again.Curing and demolding, adopts Water Cutting excision leftover pieces, obtains floor after composite material.Then glued joint face with 800 order waterproof abrasive papers to spare tyre fixed support 2 and spare tyre clamp nut 3 to polish, rinse well with water behind the surface that polishing makes new advances, then rinse with absolute ethyl alcohol, and at 80 DEG C dry 0.5 hour, at polishing region uniform application DP-460 epoxy adhesive after drying, solidify 2 hours at 120 DEG C, obtain floor after composite material automobile.Carry out mould measurement after being installed on body in white, single order torsion mode reaches 23.6Hz, and mode of flexural vibration reaches 54.6Hz, and rigidity reaches 101.9N/mm, and light weight degree reaches 58.5%.
Embodiment four
The present embodiment provides floor preparation method after a kind of composite material automobile, specifically comprise the following steps: adopt nonwoven fabrics to dip die cleaning agent cleaning die, naturally drying is placed after clean, then die cleaning agent is dipped in the even wiping of die surface with nonwoven fabrics, naturally clean nonwoven fabrics wiping die surface is again used after hanging 3 minutes, remove unnecessary mold release, then according to [0/90/45/-45]
4the unidirectional carbon cloth of lay 24K, lay one deck S-glass glass fibre drill weave is respectively needed before carbon cloth lay and after lay, HR-8300 resin is imported under 0.15MPa, limit imports resin limit mold heated, solidify 2 hours at 130 DEG C, the demoulding, adopts Water Cutting excision leftover pieces, obtains floor after composite material.Then glued joint face with 400 order waterproof abrasive papers to spare tyre fixed support 2 and spare tyre clamp nut 3 to polish, rinse well with water behind the surface that polishing makes new advances, then rinse with absolute ethyl alcohol, and at 80 DEG C dry 0.5 hour, at polishing region uniform application E-120HP epoxy adhesive after drying, solidify 2 hours at 120 DEG C, obtain floor after composite material automobile.Carry out mould measurement after being installed on body in white, single order torsion mode reaches 28.6Hz, and mode of flexural vibration reaches 57.5Hz, and rigidity reaches 322.0N/mm, and light weight degree reaches 58.6%.
After adopting above-mentioned scheme,
1) after composite material automobile, floor is lightweight, compared with the automobile rear floor loss of weight 45% ~ 60% that plain metal sheet metal component makes under equal rigidity;
2) floor global formation after automobile rear floor spare tyre fixed support 2 and composite material, reduces assembling station;
3) after the composite material automobile made by installation, the body in white first rank torsion mode on floor is 22.3 ~ 28.6Hz, and mode of flexural vibration is 54.4 ~ 57.5Hz, and rigidity reaches 71.9 ~ 322.0N/mm, is better than the floor that sheet metal component makes.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. a floor after composite material automobile, is characterized in that, automobile rear floor material is:
The resin bed (102) be cascading, glass layer (103), carbon fiber layer (104), glass layer (103) and resin bed (102), wherein, described glass layer (103) and carbon fiber layer (104) infiltrate resin.
2. floor after composite material automobile as claimed in claim 1, it is characterized in that, described carbon fiber layer (104) has 16 layers, and fiber angles is that the carbon fiber layer (104) of 0 °, 90 °, 45 ° ,-45 ° stacks gradually is one group, superposes four groups altogether.
3. floor after composite material automobile as claimed in claim 2, it is characterized in that, spare tyre fixed support (2) and rear floor (1) are integral type structure.
4. floor after composite material automobile as claimed in claim 3, it is characterized in that, spare tyre clamp nut (3) is bonded on spare tyre fixed support (2) by bonding layer (4).
5. after the composite material automobile as described in as arbitrary in claim 1-4, the method for making on floor, is characterized in that, comprise the steps:
1) on mould, glass fabric, carbon cloth and glass fabric is stacked successively;
2) then matched moulds, imports resin, makes resin solidification shaping afterwards, the demoulding;
3) according to rear floor (1) size, floor (1) after made composite material automobile is cut.
6. the method for making on floor after composite material automobile as claimed in claim 5, it is characterized in that, the ply sequence of carbon cloth is [0/90/45/-45]
4.
7. the method for making on floor after composite material automobile as claimed in claim 6, it is characterized in that, before 1 step, size according to automobile rear floor (1) cuts glass fabric, carbon cloth, then die cleaning agent is used to carry out clean to mould, uniform application mold release after dry, to smear evenly lay glass fabric, carbon cloth and glass fabric successively; Described smearing release agent dips mold release in the even wiping of die surface for adopting nonwoven fabrics, naturally 2 ~ 10 minutes are hung after wiping, and then with clean nonwoven fabrics in die surface wiping, again dip mold release at die surface uniform application mold release with nonwoven fabrics after wiping, smear 2 ~ 3 times.
8. the method for making on floor after composite material automobile as claimed in claim 6, is characterized in that, after the 3rd step, adopt adhesion agent spare tyre clamp nut (3) and spare tyre fixed support (2) to be glued together; Described adhesion agent is epoxies structural adhesion, before glueing joint, carries out grinding process and clean up with 400 ~ 800 order waterproof abrasive papers to splicing face, then rinses with absolute ethyl alcohol, glueds joint after dry, and solidify 2 ~ 4 hours at 120 ~ 150 DEG C.
9. the method for making on floor after composite material automobile as claimed in claim 6, it is characterized in that, described glass fabric is E-glass, R-glass or S-glass glass fibre drill weave, and described carbon cloth is 3K ~ 24K unidirectional lamination; Described resin is epoxy-resin systems or cyanate ester resin system; Resin cure temperature is 25 ~ 130 DEG C, cure time 2 ~ 24 hours.
10. the method for making on floor after composite material automobile as claimed in claim 6, is characterized in that, described resin imports as malleation or negative pressure is auxiliary imports, and as adopted resin transfer molding technique, then needs the pressure of applying 0.1 ~ 0.2MPa to import resin; As adopted vacuum bag compression technology, then need to import resin under-0.1 ~-0.2MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428226.6A CN104960581A (en) | 2015-07-20 | 2015-07-20 | Automobile rear floor made from composite materials and manufacturing method of automobile rear floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428226.6A CN104960581A (en) | 2015-07-20 | 2015-07-20 | Automobile rear floor made from composite materials and manufacturing method of automobile rear floor |
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| CN104960581A true CN104960581A (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510428226.6A Pending CN104960581A (en) | 2015-07-20 | 2015-07-20 | Automobile rear floor made from composite materials and manufacturing method of automobile rear floor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828615A (en) * | 2016-12-22 | 2017-06-13 | 广东亚太新材料科技有限公司 | Floor after a kind of vehicle body |
| CN108068894A (en) * | 2016-11-18 | 2018-05-25 | 保时捷股份公司 | Motor vehicle body component |
| CN109625098A (en) * | 2018-11-06 | 2019-04-16 | 东莞市汇力模具有限公司 | Floor and its manufacturing method after a kind of integrated form vehicle body |
| CN110789201A (en) * | 2019-11-28 | 2020-02-14 | 深圳市烯碳复合材料有限公司 | Glass fiber reinforced core bonding composite structure for automobile roof |
| CN111516761A (en) * | 2020-04-20 | 2020-08-11 | 重庆长安汽车股份有限公司 | Carbon fiber composite material automobile front floor, manufacturing method and automobile |
| CN112937709A (en) * | 2021-01-29 | 2021-06-11 | 安徽延达智能科技有限公司 | Robot adopting composite material shell and manufacturing method of composite material shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108068894A (en) * | 2016-11-18 | 2018-05-25 | 保时捷股份公司 | Motor vehicle body component |
| CN108068894B (en) * | 2016-11-18 | 2021-05-28 | 保时捷股份公司 | Motor vehicle body component |
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| CN110789201A (en) * | 2019-11-28 | 2020-02-14 | 深圳市烯碳复合材料有限公司 | Glass fiber reinforced core bonding composite structure for automobile roof |
| CN111516761A (en) * | 2020-04-20 | 2020-08-11 | 重庆长安汽车股份有限公司 | Carbon fiber composite material automobile front floor, manufacturing method and automobile |
| CN112937709A (en) * | 2021-01-29 | 2021-06-11 | 安徽延达智能科技有限公司 | Robot adopting composite material shell and manufacturing method of composite material shell |
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