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CN107511957B - A kind of electronic racing car shell monomer Auto-body manufacturing method and its turn over former - Google Patents

A kind of electronic racing car shell monomer Auto-body manufacturing method and its turn over former Download PDF

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Publication number
CN107511957B
CN107511957B CN201710599238.4A CN201710599238A CN107511957B CN 107511957 B CN107511957 B CN 107511957B CN 201710599238 A CN201710599238 A CN 201710599238A CN 107511957 B CN107511957 B CN 107511957B
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China
Prior art keywords
mold
layer
vacuum bag
vacuum
bag film
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CN201710599238.4A
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Chinese (zh)
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CN107511957A (en
Inventor
俞涵涛
陈文洁
陈光耀
徐威
俞凯南
姚铮杰
王�琦
侯亮
龚佐民
唐康人
胡钱坤
李操
郑嘉伟
莫烁杰
陈佳亮
闻鹏
姚中楠
黄文豪
金梦霞
娄维尧
孙子峰
冯森尧
厉鑫波
王玖乐
张建鑫
王禹昕
王纪东
张京京
徐璐瑶
李茜
马正阳
杨阳
吴祎杰
田艺
王林荣
王栋铭
蔡姚杰
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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Priority to CN201710599238.4A priority Critical patent/CN107511957B/en
Publication of CN107511957A publication Critical patent/CN107511957A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3835—Designing moulds, e.g. using CAD-CAM
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

一种电动赛车单体壳车身制造方法及其翻阴模，所述的方法包括以下步骤：利用CAD软件以及ANSYS设计并优化单体壳的外形和结构，经过打磨制造出光滑的阳模，对阳模进行处理涂覆化学脱模剂、偶联层、积层树脂层，并脱模制成翻阴膜，在翻阴模表面上涂上脱模剂层、第一层碳纤维布层、蜂窝铝层、第二层碳纤维布层、脱模布层以及吸胶毡层，制成碳纤维复合材料蜂窝结构成型；所述产品包括翻阴模、真空袋、预埋件以及真空阀，翻阴模的上表面从内向外依次设有脱模剂层、第一层碳纤维布层、蜂窝铝层、第二层碳纤维布层、脱模布层以及吸胶毡层。本发明有益效果是：使得碳纤维复合材料赛车车身拥有较好的刚度、强度、安全系数和整合性，同时达到轻量化的目标。

A method for manufacturing a monocoque body of an electric racing car and a negative mold for the same. The method includes the following steps: using CAD software and ANSYS to design and optimize the shape and structure of the monocoque, grinding to produce a smooth positive mold, The male mold is treated and coated with a chemical release agent, a coupling layer, and a laminated resin layer, and is demolded to make a negative film. The surface of the negative mold is coated with a release agent layer, the first layer of carbon fiber cloth, a honeycomb The aluminum layer, the second carbon fiber cloth layer, the mold release cloth layer and the suction felt layer are formed into a carbon fiber composite honeycomb structure; the products include a negative mold, a vacuum bag, an embedded part and a vacuum valve, and a negative mold The upper surface of the mold release agent layer, the first layer of carbon fiber cloth layer, the honeycomb aluminum layer, the second layer of carbon fiber cloth layer, the mold release cloth layer and the glue-absorbing felt layer are sequentially arranged from the inside to the outside. The beneficial effect of the invention is that the carbon fiber composite racing car body has better stiffness, strength, safety factor and integration, and at the same time achieves the goal of light weight.

Description

A kind of electronic racing car shell monomer Auto-body manufacturing method and its turn over former
Technical field
The present invention relates to a kind of electronic racing car shell monomer Auto-body manufacturing method and its turn over former.
Background technique
Nowadays motor sport more and more becomes an important sports, and the weight of racing car becomes energy in motor sport The no key factor to get good grades, wherein the loss of weight of racing body at numerous fleets target.Racing car generally makes at present With steel pipe truss formula vehicle frame and carbon fiber skin vehicle body, have the defects that kerb weight is excessive.
Summary of the invention
The present invention provides a kind of compound using carbon fiber for the excessive defect of existing Non-carrying type racing body quality Material honeycomb, so that racing body light weight and a kind of electronic racing car shell monomer Auto-body manufacturing with preferable mechanical property Method and its turn over former.
A kind of electronic racing car shell monomer Auto-body manufacturing method of the present invention, comprising the following steps:
1) formpiston is made
(1) using the shape and structure of CAD software design shell monomer, its structure space is made to meet the needs of later period assembly, And has good aerodynamic performance；
(2) CAE analysis torsion, bending, shear strength are carried out with ANSYS, realizes the optimization of structural thickness；
(3) CAD model is divide into upper part and lower part using maximum vertical view face as boundary, mills out extruded sheet material with machining center Mold, and it is divided into formpiston and lower formpiston；
(4) one layer of epoxy resin is smeared after upper formpiston, the lower formpiston milled molds, prevents poly-putty base from corroding extruded sheet, After resin solidification, one layer of relatively thin poly-putty base sealing of hole is smeared, is smoothed out with scraper scraper plate；Wait poly-putty base solidification (3-4 hours) It is polished afterwards with water-proof abrasive paper, mesh number is polished from low to high, obtains mold A；
(5) the mold A brush brushing first layer mold priming paint after polishing obtains mold B；
(6) it after mold B solidifies (3-4 hours), is polished from thick to thin using P80-P240 dry sand paper, obtains mold C；
(7) there is exposing material part after mold C polishing, repaired with a small amount of poly-putty base, obtain mold D；
(8) mold D brushing bloom gel coat after poly-putty base solidifies obtains mold E；
(9) it polishes mold E, is first polished from thick to thin with P80-P500 dry sand paper again, obtain mold F；
(10) water mill is carried out to mold F with water-proof abrasive paper, carries out water mill from P500-P1200, obtains bright formpiston；
2) former is turned in production
1. die surface is handled: first having to be surface-treated formpiston before making glass reinforced plastic former, use wipes of alcohol Male mold surfaces are wiped, the spot of male mold surfaces is cleaned, obtain formpiston A；
2. coating chemical release agent: being needed between the surface formpiston A coated with multiple layer chemistry release agent, each layer after cleaning Curing time that will be at least 15 minutes；It at least needs to solidify a hour after being painted with the last layer, obtains formpiston B；
3. the flange made is fixed on the edge formpiston B with hot melt adhesive, and seal between the PP cored slab of formpiston B Gap obtains formpiston C；
4. being obtained formpiston D with the gap of filling wax sealing flange and formpiston C, being paid attention to drafting angle；
5. obtaining formpiston E after solidifying at room temperature in the uniform mould gel coat layer of formpiston D external coating；
6. ensuring turning all on the docile and obedient mold of glass fibre in formpiston E external coating coupling layer in painting process, obtaining Formpiston F is obtained, wherein the coupling layer is glass fibre；
7. at least spreading 4 layers of glass fibre in formpiston F external coating laminated resin, brushing one layer of resin then on formpiston F Layer of glass is spread, one layer of resin corresponds to layer of glass, and the dosage of each layer of resin is to be coated with glass fibre on it Glass fibre is all coated on formpiston E by 4 times of quality；When starting solidification, color will become dark brown from brown Color guarantees resin curing time at 24 hours or more；Wherein the weight ratio of resin and glass fibre is 4:1, then solidifies 24 Hour, obtain formpiston G；
8. demoulding, two pieces of formers are completed, respectively upper former and lower former；
3) carbon fibre composite honeycomb forms:
A molds above-mentioned upper former and lower former, and is sealed in upper former and lower former seam crossing with sealant tape, then use The gap between wax filling mold is filled, is allowed to smoothly transit, former A is turned in acquisition；
B coats the chemical release agent of multi-layer thin in female mold surfaces, is at least spaced between every layer 15 minutes, and the last layer applies Next layer can be just coated after at least wanting after complete 1 hour, former B is turned in acquisition；
C adds the first carbon fibre initial rinse layer of cloth, is cut on former inner surface using the stickiness covering of prepreg cloth itself Multilayer carbon fibre initial rinse fabric, acquisition turn over former C；
D is coated with aluminum honeycomb turning over former C Surface, structure glue sticking is used between every piece of aluminum honeycomb, while pre- needing to install The fixed built-in fitting in the place of embedded part, built-in fitting structure glue is Nian Jie with carbon fiber layer and aluminum honeycomb, and former D is turned in acquisition；
E adds the second carbon fibre initial rinse layer of cloth, and the stickiness of prepreg cloth itself is utilized on the aluminum honeycomb inner surface for turn over former D The multilayer carbon fibre initial rinse fabric cut is covered, former E is turned in acquisition；
F is turning over the surface former E addition release layer, guarantees that release cloth can cover carbon fibre initial rinse fabric, former F is turned in acquisition；
G inhales rubber mat turning over the addition of the surface former F, and inhaling rubber mat can be absorbed resin extra on prepreg cloth, and can be to prevent Only the metal structures such as aluminum honeycomb and built-in fitting pierce through vacuum bag film, and former G is turned in acquisition；
H positioning vacuum valve extracts the air in sealed environment out, and keeps vacuum degree, and former H is turned in acquisition；
I adhesive seal adhesive tape: sealant tape is pasted onto the flange for turning over former H, cuts one piece greatly at least than former area Vacuum bag film is covered in and turns over the outer surface former H by 50% vacuum bag film, establishes a sealed environment, while guaranteeing vacuum bag There are not some folds or folding line, vacuum bag film from front to back covers entire carbon fiber honeycomb, and yin is turned in acquisition Mould I；
G connection and sealing vacuum valve: vacuum bag film heap is folded, and carbon fibre initial rinse fabric is sealed in vacuum bag film, The breach of vacuum valve interface lane one in vacuum bag film makes interface stretch out vacuum bag film, and is sealed breach with sealant tape, even The interface of vacuum pump in vacuum valve interface and autoclave is connect, former J is turned in acquisition；
K opens vacuum pump, evacuates air, adjusts vacuum bag film, when air is taken away out of vacuum bag, surrounding is moved simultaneously Fixed vacuum bag film, vacuum bag film make carbon fibre initial rinse fabric tightly be attached to all sites on aluminum honeycomb surface, it is ensured that aluminum honeycomb with It is very close to each other between vacuum bag film；
L tests vacuum, opens the air in vacuum pump and suction ring border and examines the leakproofness of vacuum bag film, guarantees Vacuum bag film leakproofness；
It after m finishes vacuum test, is put into autoclave, technological parameter is set, starting autoclave carries out hot pressing；
N demoulding: after the completion of hot pressing, former being taken out from autoclave, pulls out vacuum pump interface, by vacuum bag film from former On tear, obtain honeycomb.
The demoulding of step 3) carries out in accordance with the following steps:
(1) surrounding edge and the removal of vacuum bag film are cut；
(2) sealant tape at former edge is removed, most effective method is quickly to wrench；
(3) vacuum valve is removed, the sealant tape being sticked on vacuum valve is removed completely, vacuum valve is to may be reused 's；
(4) it carefully tears and inhales rubber mat and release cloth, not damage carbon fiber layer；
(5) bolt and nut on former is unscrewed, upper former and lower former are separately removed；
(6) remaining sealant tape on shell monomer finished product outer surface and filling wax are removed clean.
Step 2) 5. in: on the surface formpiston D and mould gel coat is two layers layer by layer, two layers of overall thickness control 0.8mm with It is interior, first layer brush 0.3-0.4mm uniform thickness, after solidification 2-3 hours of 20 DEG C of room temperature, then brush second layer 0.3-0.4mm thickness, room At least solidify under temperature 4 hours.
Sealant tape is pasted onto the flange for turning over former H, cuts one piece of vacuum bag film than former area greatly at least 50%, Since in corner, the paper at peel seal adhesive tape back is pressed vacuum bag film, is adhered on exposed sealant tape, on former side Along moving, then the paper for removing adhesive tape back clings vacuum bag film, the side Bian Yidong is viscous, will be as far as possible when film is adhered on adhesive tape Carefully, vacuum bag not have some folds or folding line, firmly be pressed down with finger, while by while rub, make vacuum bag film and close Sealed adhesive tape sticks together, and establishes a sealed environment.
Hot pressing in step m are as follows: temperature parameter is that 2 minutes constant-speed heatings are warming up to 15 DEG C, 30 minutes constant-speed heatings 85 DEG C are warming up to, is kept for 85 DEG C, constant temperature time is 60 minutes, and 13 minutes constant-speed heatings are warming up to 120 DEG C, is kept for 120 DEG C, constant temperature Time is 120 minutes, at the uniform velocity cools to 60 DEG C within 12 minutes；Pressure parameter is that 0KPa is run 3 minutes, is at the uniform velocity pressurized within 2 minutes 200KPa keeps 200KPa, and constant voltage time is 230 minutes, is at the uniform velocity depressured to 0KPa within 2 minutes.
Outer surface processing the following steps are included:
I. there may be the small defects that is recessed for shell monomer vehicle body demoulding rear surface, first use poly-putty base filling-in；
Ii. it is polished from thick to thin with silicon carbide paper P80-P500；
Iii. with fill out eye ash mend dit；
Iv. with the entire shell monomer bodywork surface of silicon carbide paper polishing of P240-P1200；
V. spray painting coating after the completion of polishing.
Former is turned in a kind of electronic racing car shell monomer Auto-body manufacturing method building according to the present invention, and feature exists In: including turning over former ontology, vacuum bag, built-in fitting and vacuum valve, the upper surface for turning over former ontology is from inside to outside successively Equipped with releasing agent layer, first layer carbon fibre cloth layer, honeycomb aluminium layer, second layer carbon fibre cloth layer, demoulding layer of cloth and rubber mat layer is inhaled, The honeycomb aluminium layer is mutually bonded by several honeycomb aluminums to be constituted；The built-in fitting is bonded in the first carbon fibre initial rinse by structure glue Between layer of cloth and honeycomb aluminium layer；The opposite both sides of the vacuum bag are respectively provided with one for being connected to the vacuum of exocoel in vacuum bag Valve, the vacuum bag is coated on the outer surface for turning over former, and the edge of the vacuum bag is sealed by sealant tape, Entire vacuum bag corrugationless or folding line from front to back by entirely turning over former is coated on interior formation sealed environment.
5052 aluminium of core material of the honeycomb aluminum, bee lattice side length 4mm, thickness 0.05mm, height 25mm.
The beneficial effects of the present invention are: the manufacturing method possesses carbon fibre composite racing body preferably just Degree, intensity, safety coefficient and conformability, while reaching light-weighted target.
Detailed description of the invention
Fig. 1 is shell monomer vehicle body moulding process schematic diagram.
Fig. 2 is honeycomb schematic diagram.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawing
Referring to attached drawing:
A kind of electronic racing car shell monomer Auto-body manufacturing method of the present invention of embodiment 1, comprising the following steps:
1) formpiston is made
(1) using the shape and structure of CAD software design shell monomer, its structure space is made to meet the needs of later period assembly, And has good aerodynamic performance；
(2) CAE analysis torsion, bending, shear strength are carried out with ANSYS, realizes the optimization of structural thickness；
(3) CAD model is divide into upper part and lower part using maximum vertical view face as boundary, mills out extruded sheet material with machining center Mold, and it is divided into formpiston and lower formpiston；
(4) one layer of epoxy resin is smeared after upper formpiston, the lower formpiston milled molds, prevents poly-putty base from corroding extruded sheet, After resin solidification, one layer of relatively thin poly-putty base sealing of hole is smeared, is smoothed out with scraper scraper plate；Wait poly-putty base solidification (3-4 hours) It is polished afterwards with water-proof abrasive paper, mesh number is polished from low to high, obtains mold A；
(5) the mold A brush brushing first layer mold priming paint after polishing obtains mold B；
(6) it after mold B solidifies (3-4 hours), is polished from thick to thin using P80-P240 dry sand paper, obtains mold C；
(7) there is exposing material part after mold C polishing, repaired with a small amount of poly-putty base, obtain mold D；
(8) mold D brushing bloom gel coat after poly-putty base solidifies obtains mold E；
(9) it polishes mold E, is first polished from thick to thin with P80-P500 dry sand paper again, obtain mold F；
(10) water mill is carried out to mold F with water-proof abrasive paper, carries out water mill from P500-P1200, obtains bright formpiston；
2) former is turned in production
1. die surface is handled: first having to be surface-treated formpiston before making glass reinforced plastic former, use wipes of alcohol Male mold surfaces are wiped, the spot of male mold surfaces is cleaned, obtain formpiston A；
2. coating chemical release agent: in the surface formpiston A coated with multiple layer chemistry release agent after cleaning: lint-free with a fritter Chemical release agent is coated thin layer in male mold surfaces by cloth.When release agent starts to volatilize (5-30 seconds), another piece of nothing is used Flannelette lightly removes extra part with the mode looped；6 layers of release agent need to be covered altogether on each formpiston, between each layer Need at least 15 minutes curing times；It at least needs to solidify a hour after being painted with the last layer, obtains formpiston B；
3. the flange made is fixed on the edge formpiston B with hot melt adhesive, and seal between the PP cored slab of formpiston B Gap obtains formpiston C；
4. being obtained formpiston D with the gap of filling wax sealing flange and formpiston C, being paid attention to drafting angle；
5. obtaining formpiston E after solidifying at room temperature in the uniform mould gel coat layer of formpiston D external coating；
6. coupling layer effect is to eliminate the mark as caused by mold reinforcer in formpiston E external coating coupling layer, pass through one Layer resin and glass come enhance gel coat with reach reduce gel coating resin below bladdery risk, for reinforcer provide one preferably Base；Ensure turning all on the docile and obedient mold of glass fibre in painting process, obtain formpiston F, wherein the coupling layer is Glass fibre；
7. at least spreading 4 layers of glass fibre, 450g/m in formpiston F external coating laminated resin2, one layer of tree is brushed on formpiston F Rouge then spreads layer of glass, and one layer of resin corresponds to layer of glass, and the dosage of each layer of resin is to be coated with glass on it Glass fibre is all coated on formpiston E by 4 times of glass fiber quality；When starting solidification, color will become from brown Dark-brown guarantees resin curing time at 24 hours or more；Wherein the weight ratio of resin and glass fibre is 4:1, then solid Change 24 hours, obtains formpiston G；
8. demoulding, two pieces of formers are completed, respectively upper former and lower former；
3) carbon fibre composite honeycomb forms:
A molds above-mentioned upper former and lower former: above-mentioned two pieces of formers being molded, it is 7 that several diameters are beaten on flange The through-hole of millimeter, is fixed with the screw bolt and nut of M6, and sealed in upper former and lower former seam crossing with sealant tape, then use The gap between wax filling mold is filled, is allowed to smoothly transit, former A is turned in acquisition；
B coats 6 layers thin of chemical release agent in female mold surfaces, is at least spaced between every layer 15 minutes, and the last layer applies Next layer can be just coated after at least wanting after complete 1 hour, former B is turned in acquisition；
C adds first layer carbon fibre initial rinse fabric, is cut on former inner surface using the stickiness covering of prepreg cloth itself Multilayer carbon fibre initial rinse fabric, it is preferred that covering 8 layers of carbon fibre initial rinse fabric, acquisition turn over former C；
D is coated with aluminum honeycomb turning over former C Surface, structure glue sticking is used between every piece of aluminum honeycomb, while pre- needing to install The fixed built-in fitting in the place of embedded part, built-in fitting structure glue is Nian Jie with carbon fiber layer and aluminum honeycomb, and former D is turned in acquisition；
E adds second layer carbon fibre initial rinse fabric, and the stickiness of prepreg cloth itself is utilized on the aluminum honeycomb inner surface for turn over former D Cover the multilayer carbon fibre initial rinse fabric cut, it is preferred that former E is turned in 7 layers of carbon fibre initial rinse fabric of covering, acquisition；
F is turning over the surface former E addition release layer, guarantees that release cloth can cover two layers of carbon fibre initial rinse fabric, yin is turned in acquisition Mould F is usually cut into more bigger than the area of carbon fibre initial rinse fabric；
G inhales rubber mat turning over the addition of the surface former F, and inhaling rubber mat can be absorbed resin extra on prepreg cloth, and can be to prevent Only the metal structures such as aluminum honeycomb and built-in fitting pierce through vacuum bag film, and former G is turned in acquisition；Since in corner, peel seal adhesive tape The paper at back, presses vacuum bag film, adheres on exposed sealant tape.Mobile at former edge, the paper for removing adhesive tape back is right After cling vacuum bag film, the side Bian Yidong is viscous.As careful as possible when film is adhered on adhesive tape, vacuum bag not have some folds Or folding line.Firmly pressed down with finger, while by while rub, so that vacuum bag film and sealant tape is sticked together, establish one it is close Seal ring border.Vacuum bag film from front to back covers entire carbon fiber honeycomb；
H positioning vacuum valve extracts the air in sealed environment out, and keeps vacuum degree, and former H is turned in acquisition；When air by from When taking away in vacuum bag, surrounding moves and fixes vacuum bag film, it can be seen that vacuum bag film is attached to carbon fibre initial rinse fabric tightly The all sites on aluminum honeycomb surface.Since vacuum bag film can gradually become tight after vacuum pump unlatching, vacuum pump is temporarily turned off, at this moment The vacuum bag film for needing to relocate can be moved, a little folds are done in the place needed, it is ensured that do not have between aluminum honeycomb and vacuum bag film There is gap.If vacuum bag film area is not big enough, there are gaps between aluminum honeycomb for it, the vacuum that just can not retighten Bag film is repaired and is had adjusted.In case of this situation, it should stop, removing vacuum bag film and sealant tape, do again again Once；
I adhesive seal adhesive tape: sealant tape is pasted onto the flange for turning over former H, cuts one piece greatly at least than former area Vacuum bag film is covered in and turns over the outer surface former H by 50% vacuum bag film, establishes a sealed environment, while guaranteeing vacuum bag There are not some folds or folding line, vacuum bag film from front to back covers entire carbon fiber honeycomb, and yin is turned in acquisition Mould I；
G connection and sealing vacuum valve: vacuum bag film heap is folded, and carbon fibre initial rinse fabric is sealed in vacuum bag film, The breach of vacuum valve interface lane one in vacuum bag film makes interface stretch out vacuum bag film, and is sealed breach with sealant tape, even The interface of vacuum pump in vacuum valve interface and autoclave is connect, former J is turned in acquisition；
K opens vacuum pump, evacuates air, adjusts vacuum bag film, when air is taken away out of vacuum bag, surrounding is moved simultaneously Fixed vacuum bag film, vacuum bag film make carbon fibre initial rinse fabric tightly be attached to all sites on aluminum honeycomb surface, it is ensured that aluminum honeycomb with It is very close to each other between vacuum bag film；
L tests vacuum, opens the air in vacuum pump and suction ring border and examines the leakproofness of vacuum bag film, guarantees Vacuum bag film leakproofness；The air in vacuum pump and suction ring border is opened, just can be appreciated that the vacuum degree display instrument of vacuum pump Vacuum values on table are begun to ramp up.Without turning off vacuum pump, until close to perfect vacuum, vacuum values are not rising. At this moment, Ying Jinhang turns off vacuum pump, continues at least 20 minutes, then meticulous inspection vacuum values；If index decreased, It can determine that vacuum bag film has leakage, it is necessary to be adjusted.It, can firmly pressing vacuum bag film and close if endless hermetically sealed Sealed adhesive tape, then vacuum test is carried out, until being fully sealed；
It after m finishes vacuum test, is put into autoclave, technological parameter is set, starting autoclave carries out hot pressing；
N demoulding: after the completion of hot pressing, former being taken out from autoclave, pulls out vacuum pump interface, by vacuum bag film from former On tear, obtain honeycomb.
The demoulding of step 3) carries out in accordance with the following steps:
(1) surrounding edge and the removal of vacuum bag film are cut；
(2) sealant tape at former edge is removed, most effective method is quickly to wrench；
(3) vacuum valve is removed, the sealant tape being sticked on vacuum valve is removed completely, vacuum valve is to may be reused 's；
(4) it carefully tears and inhales rubber mat and release cloth, not damage carbon fiber layer；
(5) bolt and nut on former is unscrewed, upper former and lower former are separately removed；
(6) remaining sealant tape on shell monomer finished product outer surface and filling wax are removed clean.
Step 2) 5. in: on the surface formpiston D and mould gel coat is two layers layer by layer, two layers of overall thickness control 0.8mm with It is interior, first layer brush 0.3-0.4mm uniform thickness, after solidification 2-3 hours of 20 DEG C of room temperature, then brush second layer 0.3-0.4mm thickness, room At least solidify under temperature 4 hours.
Sealant tape is pasted onto the flange for turning over former H, cuts one piece of vacuum bag film than former area greatly at least 50%, Since in corner, the paper at peel seal adhesive tape back is pressed vacuum bag film, is adhered on exposed sealant tape, on former side Along moving, then the paper for removing adhesive tape back clings vacuum bag film, the side Bian Yidong is viscous, will be as far as possible when film is adhered on adhesive tape Carefully, vacuum bag not have some folds or folding line, firmly be pressed down with finger, while by while rub, make vacuum bag film and close Sealed adhesive tape sticks together, and establishes a sealed environment.
Hot pressing in step m are as follows: temperature parameter is that 2 minutes constant-speed heatings are warming up to 15 DEG C, 30 minutes constant-speed heatings 85 DEG C are warming up to, is kept for 85 DEG C, constant temperature time is 60 minutes, and 13 minutes constant-speed heatings are warming up to 120 DEG C, is kept for 120 DEG C, constant temperature Time is 120 minutes, at the uniform velocity cools to 60 DEG C within 12 minutes；Pressure parameter is that 0KPa is run 3 minutes, is at the uniform velocity pressurized within 2 minutes 200KPa keeps 200KPa, and constant voltage time is 230 minutes, is at the uniform velocity depressured to 0KPa within 2 minutes.
Outer surface processing the following steps are included:
I. there may be the small defects that is recessed for shell monomer vehicle body demoulding rear surface, first use poly-putty base filling-in；
Ii. it is polished from thick to thin with silicon carbide paper P80-P500；
Iii. with fill out eye ash mend dit；
Iv. with the entire shell monomer bodywork surface of silicon carbide paper polishing of P240-P1200；
V. spray painting coating after the completion of polishing.
Former is turned in a kind of electronic racing car shell monomer Auto-body manufacturing method building according to the present invention, including turns over former Ontology 1, vacuum bag 2, built-in fitting 3 and vacuum valve 4, the upper surface for turning over former ontology 1 are successively arranged demoulding from inside to outside Oxidant layer 11, first layer carbon fibre cloth layer 12, honeycomb aluminium layer 13, second layer carbon fibre cloth layer 14, demoulding layer of cloth 15 and suction rubber mat Layer 16, the honeycomb aluminium layer 13 is mutually bonded by several honeycomb aluminums to be constituted；The built-in fitting 3 is bonded in the first carbon by structure glue Between fiber prepreg layer of cloth 12 and honeycomb aluminium layer 13；The opposite both sides of the vacuum bag 2 are respectively provided with one for being connected to vacuum bag The vacuum valve 4 of interior exocoel, the vacuum bag 2 is coated on the outer surface for turning over former ontology 1, and the edge of the vacuum bag 2 is logical It crosses sealant tape 21 to be sealed, entire 2 corrugationless of vacuum bag or folding line entirely will turn over former 1 from front to back and be coated on Interior formation sealed environment.
5052 aluminium of core material of the honeycomb aluminium layer 13, bee lattice side length 4mm, thickness 0.05mm, height 25mm.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention Range should not be construed as being limited to the specific forms stated in the embodiments, and protection scope of the present invention also includes art technology Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.

Claims (8)

1.一种电动赛车单体壳车身制造方法，包括以下步骤：1. A method for manufacturing a monocoque body of an electric racing car, comprising the following steps: 1)制作阳模1) Make a positive mold (1)利用CAD软件设计单体壳的外形和结构，使其结构空间满足后期装配的需求，并具备良好的空气动力学性能；(1) Use CAD software to design the shape and structure of the monocoque, so that its structural space meets the needs of later assembly and has good aerodynamic performance; (2)用ANSYS进行CAE分析扭转、弯曲、剪切强度，实现结构厚度的优化；(2) ANSYS is used to analyze the torsional, bending and shear strength by CAE to realize the optimization of the structural thickness; (3)将CAD模型以最大俯视面为界分为上下两部分，用加工中心铣出挤塑板材质的模具，并分为上阳模和下阳模；(3) Divide the CAD model into upper and lower parts with the largest top view as the boundary, mill out the mold made of extruded board with a machining center, and divide it into an upper male mold and a lower male mold; (4)在铣好的上阳模、下阳模合模后涂抹一层环氧树脂，防止原子灰腐蚀挤塑板，待树脂固化后，涂抹较薄的一层原子灰封孔，用刮刀刮板抹平；等待原子灰固化后用耐水砂纸进行打磨，目数由低到高进行打磨，获得模具A；(4) Apply a layer of epoxy resin after the milled upper and lower male molds are closed to prevent the putty from corroding the extruded board. After the resin is cured, apply a thin layer of putty to seal the hole, and use a scraper The scraper is smoothed; after the putty is cured, it is polished with water-resistant sandpaper, and the mesh number is polished from low to high to obtain mold A; (5)打磨后的模具A用刷子涂刷第一层模具底漆，获得模具B；(5) mould A after grinding is painted with the first layer of mould primer with a brush to obtain mould B; (6)待模具B固化后，使用P80-P240干砂纸由粗到细进行打磨，获得模具C；(6) after mold B is cured, use P80-P240 dry sandpaper to polish from coarse to fine to obtain mold C; (7)模具C打磨后有露出材料部分，用少量原子灰进行修补，获得模具D；(7) After the mold C is polished, there is a part of the exposed material, which is repaired with a small amount of putty to obtain the mold D; (8)模具D经原子灰固化后涂刷高光胶衣，获得模具E；(8) After the mold D is cured by the putty, the high-gloss gel coat is applied to obtain the mold E; (9)再对模具E进行打磨，先用P80-P500干砂纸由粗到细进行打磨，获得模具F；(9) Grind the mold E again, first use P80-P500 dry sandpaper to polish from coarse to fine, to obtain the mold F; (10)用耐水砂纸对模具F进行水磨，从P500-P1200进行水磨，获得光亮的阳模；(10) Water-grinding the mould F with water-resistant sandpaper, and water-grinding from P500-P1200 to obtain a bright male mould; 2)制作翻阴模2) Make a negative mold ①模具表面处理：在制作玻璃钢阴模之前首先要对阳模进行表面处理，用酒精擦拭阳模表面，清洗阳模表面的污渍，获得阳模A；①Mold surface treatment: Before making the FRP female mold, the surface treatment of the male mold should be carried out first, and the surface of the male mold should be wiped with alcohol to clean the stains on the surface of the male mold to obtain the male mold A; ②涂覆化学脱模剂：清洁完毕后在阳模A表面涂覆多层化学脱模剂，每一层之间需要至少15分钟的固化时间；在涂完最后一层之后至少需要固化一个小时，获得阳模B；②Coating chemical release agent: After cleaning, apply multiple layers of chemical release agent on the surface of the positive mold A, and a curing time of at least 15 minutes is required between each layer; after the last layer is applied, it needs to be cured for at least one hour , get the positive mold B; ③将制作好的法兰边用热熔胶固定在阳模B边缘，并密封阳模B的PP空心板之间的缝隙，获得阳模C；③Fix the prepared flange on the edge of the male mold B with hot melt adhesive, and seal the gap between the PP hollow plates of the male mold B to obtain the male mold C; ④用填充蜡密封法兰与阳模C的缝隙，获得阳模D，注意拔模角度；④ Seal the gap between the flange and the male mold C with filling wax to obtain the male mold D, pay attention to the draft angle; ⑤在阳模D表面涂刷均匀的模具胶衣层，室温下固化后获得阳模E；⑤ Apply a uniform mold gel coat layer on the surface of the positive mold D, and obtain the positive mold E after curing at room temperature; ⑥在阳模E表面涂刷偶联层，涂刷过程中确保玻璃纤维帖服模具上所有的拐角，获得阳模F，其中所述的偶联层为玻璃纤维；⑥ Brush the coupling layer on the surface of the male mold E. During the brushing process, ensure that the glass fiber is attached to all the corners of the mold to obtain the male mold F, wherein the coupling layer is glass fiber; ⑦在阳模F表面涂刷积层树脂，至少铺4层的玻璃纤维，在阳模F上刷一层树脂接着铺一层玻璃纤维，一层树脂对应一层玻璃纤维，每一层树脂的用量为铺覆在其上玻璃纤维质量的4倍，将玻璃纤维全部铺覆在阳模E上；当开始固化的时候，颜色将从棕色变为深棕色，保证树脂固化时间在24小时以上；其中树脂和玻璃纤维的重量比例为4:1，然后固化24小时，获得阳模G；⑦ Brush the laminated resin on the surface of the male mold F, and lay at least 4 layers of glass fibers. Brush a layer of resin on the male mold F and then lay a layer of glass fibers. One layer of resin corresponds to one layer of glass fibers. The dosage is 4 times the mass of the glass fiber laid on it, and all the glass fibers are laid on the male mold E; when the curing starts, the color will change from brown to dark brown, and the curing time of the resin is guaranteed to be more than 24 hours; The weight ratio of resin and glass fiber is 4:1, and then cured for 24 hours to obtain positive mold G; ⑧脱模，完成两块阴模，分别为上阴模和下阴模；⑧ Demoulding, two female molds are completed, which are the upper female mold and the lower female mold; 3)碳纤维复合材料蜂窝结构成型：3) Carbon fiber composite honeycomb structure molding: a将上述上阴模和下阴模合模，并在上阴模和下阴模接缝处用密封胶带密封，再用填充蜡填充模具间的缝隙，使之光滑过渡，获得翻阴模A；a. Clamp the above-mentioned upper female mold and lower female mold, seal the joint between the upper female mold and the lower female mold with sealing tape, and then fill the gap between the molds with filling wax to make the transition smooth, and obtain the overturned female mold A. ; b在阴模表面上涂上多层薄的化学脱模剂，每层之间最少间隔15分钟，最后一层涂完之后至少要1小时之后才可以涂覆下一层，获得翻阴模B；b) Apply several thin layers of chemical release agent on the surface of the negative mold, with a minimum interval of 15 minutes between each layer, and at least 1 hour after the last layer is applied before the next layer can be applied to obtain a negative mold B ; c添加第一碳纤维预浸布层，在阴模内表面上利用预浸布本身的黏性覆盖裁剪好的多层碳纤维预浸布，获得翻阴模C；c. Add a first carbon fiber prepreg layer, and cover the cut multi-layer carbon fiber prepreg on the inner surface of the negative mold with the stickiness of the prepreg to obtain a negative mold C; d在翻阴模C表面铺覆铝蜂窝，每块铝蜂窝之间用结构胶粘接，同时在需要安装预埋件的地方固定预埋件，将预埋件用结构胶与碳纤维层和铝蜂窝粘接，获得翻阴模D；d. Lay aluminum honeycombs on the surface of the negative mold C, and use structural adhesive between each aluminum honeycomb. At the same time, fix the embedded parts where the embedded parts need to be installed, and use the structural adhesive to connect the embedded parts with the carbon fiber layer and aluminum Honeycomb bonding to obtain a negative mold D; e添加第二碳纤维预浸布层，在翻阴模D的铝蜂窝内表面上利用预浸布本身的黏性覆盖裁剪好的多层碳纤维预浸布，获得翻阴模E；e. Add a second carbon fiber prepreg layer, and cover the cut multi-layer carbon fiber prepreg on the inner surface of the aluminum honeycomb of the negative mold D with the viscosity of the prepreg itself to obtain the negative mold E; f在翻阴模E表面添加脱模层，保证脱模布能够覆盖碳纤维预浸布，获得翻阴模F；f Add a release layer on the surface of the negative mold E to ensure that the release cloth can cover the carbon fiber prepreg, and obtain the negative mold F; g在翻阴模F表面添加吸胶毡，吸胶毡可以吸收预浸布上多余的树脂，并且可以防止铝蜂窝及预埋件等金属结构刺穿真空袋膜，获得翻阴模G；g Add suction felt to the surface of the negative mold F, the suction felt can absorb the excess resin on the prepreg, and can prevent metal structures such as aluminum honeycomb and embedded parts from piercing the vacuum bag film to obtain the negative mold G; h定位真空阀，抽出密封环境内的空气，并保持真空度，获得翻阴模H；h Position the vacuum valve, extract the air in the sealed environment, and maintain the vacuum degree to obtain the negative mold H; i粘贴密封胶带：密封胶带粘贴在翻阴模H的法兰边，剪下一块比阴模面积大至少50％的真空袋膜，将真空袋膜贴覆在翻阴模H外表面，建立一个密封环境，同时保证真空袋不要有一点褶皱或者折痕，真空袋膜从前到后将整个碳纤维蜂窝结构覆盖起来，获得翻阴模I；i Paste the sealing tape: The sealing tape is pasted on the flange edge of the negative mold H, cut a vacuum bag film that is at least 50% larger than the area of the negative mold, and stick the vacuum bag film on the outer surface of the negative mold H to create a Seal the environment, and at the same time ensure that the vacuum bag does not have a little wrinkle or crease, and the vacuum bag film covers the entire carbon fiber honeycomb structure from front to back to obtain a negative mold I; g连接和密封真空阀：将真空袋膜堆叠好，碳纤维预浸布被密封到真空袋膜里，在真空袋膜上真空阀接口处弄一个裂口，使接口伸出真空袋膜，并用密封胶带将裂口密封，连接真空阀接口和热压罐内真空泵的接口，获得翻阴模J；g Connecting and sealing the vacuum valve: stack the vacuum bag film, the carbon fiber prepreg is sealed into the vacuum bag film, make a crack at the vacuum valve interface on the vacuum bag film, make the interface stick out of the vacuum bag film, and seal with the sealing tape Seal the crack and connect the vacuum valve interface and the vacuum pump interface in the autoclave to obtain a negative mold J; k开启真空泵，抽空空气，调节真空袋膜，当空气被从真空袋内抽走时，四周挪动并固定真空袋膜，真空袋膜使碳纤维预浸布紧紧贴在铝蜂窝表面的所有部位，确保铝蜂窝与真空袋膜之间没有间隙；k Turn on the vacuum pump, evacuate the air, and adjust the vacuum bag film. When the air is taken out of the vacuum bag, move and fix the vacuum bag film around. The vacuum bag film makes the carbon fiber prepreg tightly adhere to all parts of the aluminum honeycomb surface to ensure that There is no gap between the aluminum honeycomb and the vacuum bag film; l测试真空，打开真空泵并抽空密封环境中的空气并检验真空袋膜的密封性，保证真空袋膜密封性；l Test the vacuum, turn on the vacuum pump and evacuate the air in the sealed environment and check the tightness of the vacuum bag film to ensure the tightness of the vacuum bag film; m做完真空测试后，放入热压罐中，设置工艺参数，启动热压罐进行热压；m After the vacuum test, put it into the autoclave, set the process parameters, and start the autoclave for hot pressing; n脱模：热压完成后，将阴模从热压罐中取出，拔掉真空泵接口，将真空袋膜从阴模上撕掉，获得蜂窝结构。n Demoulding: After the hot pressing is completed, take the female mold out of the autoclave, pull out the vacuum pump interface, and tear off the vacuum bag film from the female mold to obtain the honeycomb structure. 2.如权利要求1所述的一种电动赛车单体壳车身制造方法，其特征在于：步骤3)的脱模按照如下步骤进行：2. a kind of electric racing car monocoque manufacturing method as claimed in claim 1 is characterized in that: the demoulding of step 3) is carried out according to the following steps: (1)切开真空袋膜的周围边缘并移除；(1) Cut the surrounding edge of the vacuum bag film and remove it; (2)快速猛拉，除去阴模边缘的密封胶带；(2) Quickly yank to remove the sealing tape on the edge of the female mold; (3)取下真空阀，把粘在真空阀上的密封胶带清除干净，真空阀是可以重复使用的；(3) Remove the vacuum valve and remove the sealing tape stuck on the vacuum valve. The vacuum valve can be reused; (4)小心撕掉吸胶毡和脱模布，不要损坏碳纤维层；(4) Carefully tear off the absorbent felt and release cloth without damaging the carbon fiber layer; (5)拧开阴模上的螺栓螺母，将上阴模和下阴模分开取下；(5) Unscrew the bolts and nuts on the female mold, and remove the upper female mold and the lower female mold separately; (6)将单体壳成品外表面上残留的密封胶带和填充蜡清除干净即可。(6) Clean up the residual sealing tape and filling wax on the outer surface of the finished monocoque. 3.如权利要求1所述的一种电动赛车单体壳车身制造方法，其特征在于：步骤2)的⑤中：在阳模D表面且模具胶衣层层为两层，两层总厚度控制在0.8mm以内，第一层刷0.3-0.4mm均匀厚度，室温20℃固化2-3小时后，再刷第二层0.3-0.4mm厚度，室温下至少固化4小时。3. a kind of electric racing car monocoque body manufacturing method as claimed in claim 1 is characterized in that: in step 2) in (5): on the surface of male mould D and mould gel coat layer by layer, it is two layers, the total thickness of two layers Controlled within 0.8mm, the first layer is brushed with a uniform thickness of 0.3-0.4mm. After curing for 2-3 hours at room temperature at 20°C, the second layer is brushed with a thickness of 0.3-0.4mm and cured at room temperature for at least 4 hours. 4.如权利要求1所述的一种电动赛车单体壳车身制造方法，其特征在于：密封胶带粘贴在翻阴模H的法兰边，剪下一块比阴模面积大至少50％的真空袋膜，从角落里开始，剥离密封胶带背部的纸，按下真空袋膜，粘到暴露的密封胶带上，在阴模边沿移动，除去胶带背部的纸然后粘住真空袋膜，边移动边粘，把薄膜粘到胶带上时要尽可能小心，真空袋不要有一点褶皱或者折痕，用手指牢牢的按下去，边按边揉，使真空袋膜和密封胶带粘在一起，建立一个密封环境。4. The method for manufacturing a monocoque body of an electric racing car as claimed in claim 1, characterized in that: the sealing tape is pasted on the flange edge of the female mold H, and a vacuum with an area larger than at least 50% of the area of the female mold is cut out. Bag film, starting in the corners, peel the paper from the back of the sealing tape, press the vacuum bag film, stick to the exposed sealing tape, move around the edge of the female mold, remove the paper from the back of the tape and stick the vacuum bag film, moving as you go Stick, be as careful as possible when attaching the film to the tape, the vacuum bag should not have a little wrinkle or crease, press down firmly with your fingers, press and knead, so that the vacuum bag film and the sealing tape stick together, creating a Sealed environment. 5.如权利要求1所述的一种电动赛车单体壳车身制造方法，其特征在于：步骤m中的热压过程为：温度参数为2分钟匀速加热升温到15℃，30分钟匀速加热升温到85℃，保持85℃，恒温时间为60分钟，13分钟匀速加热升温到120℃，保持120℃，恒温时间为120分钟，12分钟匀速降温到60℃；压力参数为0KPa运行3分钟，2分钟匀速增压到200KPa，保持200KPa，恒压时间为230分钟，2分钟匀速降压到0KPa。5. a kind of electric racing car monocoque body manufacturing method as claimed in claim 1, it is characterized in that: the hot pressing process in step m is: temperature parameter is 2 minutes uniform heating and heating up to 15 ℃, 30 minutes uniform heating heating to 85°C, keep at 85°C, constant temperature for 60 minutes, heat up to 120°C at a constant rate in 13 minutes, hold at 120°C, constant temperature for 120 minutes, and cool down to 60°C at a constant rate in 12 minutes; the pressure parameter is 0KPa, run for 3 minutes, 2 Pressurize to 200KPa at a constant speed in minutes, keep 200KPa, constant pressure time is 230 minutes, and reduce the pressure to 0KPa at a constant speed in 2 minutes. 6.如权利要求1所述的一种电动赛车单体壳车身制造方法，其特征在于：外表面处理包括以下步骤：6. The method for manufacturing a monocoque body of an electric racing car as claimed in claim 1, wherein the outer surface treatment comprises the following steps: i.单体壳车身脱模后表面可能存在凹陷小缺陷，先用原子灰补平；i. There may be small concave defects on the surface of the monocoque body after demoulding, which should be filled with putty first; ii.用水磨砂纸P80-P500由粗到细进行打磨；ii. Grind with water abrasive paper P80-P500 from coarse to fine; iii.用填眼灰补小砂眼；iii. Filling small blisters with eye filler; iv.用P240-P1200的水磨砂纸打磨整个单体壳车身表面；iv. Use P240-P1200 water abrasive paper to polish the entire monocoque body surface; v.打磨完成后喷漆涂装。v. Spray paint after grinding. 7.根据权利要求1所述的一种电动赛车单体壳车身制造方法构建的翻阴模，其特征在于：包括翻阴模本体、真空袋、预埋件以及真空阀，所述翻阴模本体的上表面从内向外依次设有脱模剂层、第一层碳纤维布层、蜂窝铝层、第二层碳纤维布层、脱模布层以及吸胶毡层，所述蜂窝铝层由若干蜂窝铝相互粘接构成；所述预埋件通过结构胶粘接在第一碳纤维预浸布层和蜂窝铝层之间；所述真空袋相对的两边各设有一个用于连通真空袋内外腔的真空阀，所述真空袋包覆在翻阴模本体的外表面，并且所述真空袋的边沿通过密封胶带密封在一起，整个真空袋无褶皱或者折痕的从前到后将整个翻阴模包覆在内形成密封环境。7 . The overturning mold constructed by a method for manufacturing a monocoque body of an electric racing car according to claim 1 , wherein the overturning mold body, a vacuum bag, a pre-embedded part and a vacuum valve are included, and the overturning mold The upper surface of the body is sequentially provided with a release agent layer, a first layer of carbon fiber cloth layer, a honeycomb aluminum layer, a second layer of carbon fiber cloth layer, a mold release cloth layer and a glue-absorbing felt layer from the inside to the outside. The honeycomb aluminum layer is composed of several layers. The honeycomb aluminum is bonded to each other; the embedded parts are bonded between the first carbon fiber prepreg layer and the honeycomb aluminum layer through structural adhesive; the opposite sides of the vacuum bag are provided with one for connecting the inner and outer cavities of the vacuum bag The vacuum valve, the vacuum bag is covered on the outer surface of the negative mold body, and the edges of the vacuum bag are sealed together by sealing tape, and the entire vacuum bag has no wrinkles or creases from front to back. Encapsulated to form a sealed environment. 8.根据权利要求7所述的一种电动赛车单体壳车身制造方法构建的翻阴模，其特征在于：所述蜂窝铝的芯材质5052铝，蜂格边长4mm，厚度0.05mm，高度25mm。8 . The overturning mold constructed by the method for manufacturing a monocoque body of an electric racing car according to claim 7 , wherein the core material of the honeycomb aluminum is 5052 aluminum, the honeycomb grid has a side length of 4 mm, a thickness of 0.05 mm, and a height of 0.05 mm. 25mm.
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