GB2177973A - Composite integral car body - Google Patents

Composite integral car body Download PDF

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Publication number
GB2177973A
GB2177973A GB08607890A GB8607890A GB2177973A GB 2177973 A GB2177973 A GB 2177973A GB 08607890 A GB08607890 A GB 08607890A GB 8607890 A GB8607890 A GB 8607890A GB 2177973 A GB2177973 A GB 2177973A
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United Kingdom
Prior art keywords
glass fiber
car body
fiber cloth
composite material
layer
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Granted
Application number
GB08607890A
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GB8607890D0 (en
GB2177973B (en
Inventor
Jinsheng Tang
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Individual
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Individual
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Publication of GB8607890D0 publication Critical patent/GB8607890D0/en
Publication of GB2177973A publication Critical patent/GB2177973A/en
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Publication of GB2177973B publication Critical patent/GB2177973B/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/28—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/06—Unsaturated polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2825/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as mould material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2875/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as mould material
    • 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
    • B29L2031/3055—Cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • B32B2315/085—Glass fiber cloth or fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings

Abstract

A lightweight, high strength composite integral material car body is made by successively wrapping at least one layer 2 of glass fiber cloth soaked with epoxy resin and at least two layers 3, 4 of glass fiber cloth soaked with polyester on a foam mould 1 with overlap. The surface is processed after solidification. <IMAGE>

Description

SPECIFICATION Integral car body made of composite material and its manufacturing method Present invention relates to a high strength, light weight composite material car body and its manufacturing method, particularly, it relates to integral car body made of composite material, i.e. the commonly called full plastic car body, and its manufacturing method.
Car body is generally made of steel plate by stamping. In recent years with rapid development of composite engineering materials there are more and more cases of applying composite material to manufacture car elements, for example, steering wheel, instrument panel, doorpost, top ceiling etc. are being made of semi-hard polyurethane foam plastic and polychloride; bumper is being made of modified hard polyurethane plastic; cover plate is being made of modified ABS plastic; door is being made of SMC laminated plastic; spring plate and pivoted shaft are being made of carbon fiber glass reinforced plastic and so on and so forth; there are also cases of making integral car body of composite material, but due to high material cost and complexity of manufacturing there has not been car body, made of composite material, being introduced into market up to now. The main reasons are twofold: 1.In general, car body made of composite material is not good enough in terms of strength and impact resistance features; 2.
Its cost is higher than that of car made of steel. In view of above mentioned two reasons, despite of the fact that integral car body made of composite material has advantages of light weight, low energy consumption etc., it still cannot be put into mass production to replace steel.
The objective of present invention is to provide a light weight and high strength composite material, which can be used to make inlegral car body. Such integral car body not only has high strength and light weight, but also is durable. Its cost is much lower than that of steel, thus it is possible to make integral car body of composite material in mass production. In addition present invention provides method of making such material.
The main content of present invention includes: a car body made of composite material, which is made by separately using at least one layer of fiber glass cloth soaked with epoxy resin and at least two layers of fiber glass cloth soaked with polyster to fully wrap a car inner mould made of composite foam material, and its manufacturing method.
Present invention mainly employs the high moment of imertial' principle in mechanics of material, and performs a prestressed treatment so that car body may obtain above mentioned advantages.
As we know,
wherein J, is moment of inertia of material, b is width of material, h is thickness of material (see Figure 1). From the equation it can be seen that J, increases in cubic proportion with increase in thickness of material, therefore it is desirable to have thicker material. Obviously, moment of inertia of material may be increased by using glass fiber, that is, by sandwhiching foam plastic between glass fiber reinforced plastic. At the same time bend resistant stiffness D may also be increased in great degree, which can also be seen from equation
wherein Eg is modulus of elasticity of glass, Ef is modulus of elasticity of foam, H is the total thickness of material, h is the thickness of sandwhiched foam. Due to the effect of high moment of inertia, glass fiber cloth sandwiched with foam plastic obtains very high strength.However, its features have not been fully employed yet, because the best feature of glass fiber reinforced plastic lies in its best stretching resistance (as = 250kg/cm2). Moreover, glass fiber reinforced plastic soaked with epoxy resin or polyster may contract by 8 thousandths during its process of solidification. Ingeniously employing these two great features of glass fiber reinforced plastic will make it prestressed, thus a material with higher stiffness is obtained, and it is possible then to reduce its cost and extend its service life.
Following is more detailed description of present invention with reference to attached drawings.
Figure 1 is a schematic drawing of a local sectional cutaway view of composite material.
Figure 2 is a schematic drawing of a local sectional cutaway view of composite material made by method 2.
Figure 3 is a schematic drawing of cutaway view of car body made of composite material.
Figure 4 is a cutaway view of Figure 3 in A direction.
Glass fiber cloth to be used, such as 2, 3, 4 in Figure 1, is generally neutral, dewaxed, which thickness should not be too thick, generally speaking, thickness should be int he range of 0.1 to 0.5mm, preferably 0.25mm.
Composite foam material, such as 1 in Figure 1 and Figure 2, (i.e. meterial to be used for making inner mould) need to be both light weight and easy for manufacturing. Material should have elasticity and low price. In general, polystyrene foam plate or hard polyurethane foam can be used, which volume weight may be about 25kg/m2.
Thickness of composite foam material may vary depending on applied lications. Generally speaking, thickness is within 10 to 500mm In most cases, thickness of about 50mm is sufficient.
Manufacturing method of composite material car body itself is as follows.
First of all, composite foam material is used to make an inner mould according to required configuration (see Figure 3 and Figure 4). In lot size production, foam plate can be processed to make vanious components of required configuration first according to the method of making wood mould and then sticking various components together with adhesive to form required integral configuration. In mass production injection moulding can be used to form required configuration at once.
Afterwards it needs to wrap this inner mould fully and layer by layer with glass fiber cloth.
Glass fiber cloth is to be cut properly to match the corresponding inner mould. Then it is soaked in a solution of epoxy resin, wherein epoxy resin should be diluted, at the same time a solidifying agent should be added to said solution. If ethylenediamine is used as solidifying agent, then a proportion of about 1:10 between ethylenediamine and epoxy resin is fairly appropriate.
A glass fiber cloth soaked with epoxy resin (as 2 in Figure 1) is put on to cover inner mould. By means of a hard brush with a width of more, than 6cm the glass fiber cloth is brushed flat. It is the first layer of glass fiber which must fully and evenly wrap the inner mould, particular attention should be paid to overlapping part of glass cloth. The width of overlapping part should not be less than 50mm to ensure its strength. After about 3 hours the semi-solidified glass fiber cloth is evenly rolled and pressed by a rubber drum to obtain a plain surface. It is to be covered with at least one layer of such glass fiber cloth soaked with epoxy resin. If two layers are needed to cover the mould, then the second covering layer should be put on after approximately 36 hours from first layer covering. i.e. after solidification of glass fiber reinforced plastic.
The glass fiber cloth, properly cut and soaked with polyster, (as 3 in Figure 1) is fully and evenly wrapped on the first layer (or several layers) glass fiber cloth with overlap according to said method, again the overlapping width should not be less than 50mm. Glass fiber cloth soaked with polyster is to be wrapped at least two layers, as shown in Figure 1, 4 is the second layer. Approximately another 48 hours after last layer has been wrapped on, glass fiber reinforced plastic with polyster resin is solidified, then its surface is plished, painted and shined. The polyster used here should be added with certain amount of catalyst.
Above is the first method of making composite material. The second method is similar to the first. The main difference is as follows: first of all, prepared epoxy resin (5 in Figure 2) is evenly sprayed or brushed on a foam inner mould (1), where a solidifying agent is also supplied to epoxy resin. After about 20 minutes, when epoxy resin is still quite sticky, both ends of first layer of glass fiber cloth (6) are pulled flat, and smoothly put on foam inner mould (1), brushed plain with dry brush. Then the mould is quickly wrapped in whole with glass fiber cloth, where the cross overlap between each cloth is also at least 50mm.Next, the solution of epoxy resin is again sprayed or brushed on the first layer glass fiber cloth (6), as 7 shown in Figure 2, in order to soak glass fiber cloth layer (6) with said solution, about 20 minutes later, the second covering layer of glass fiber cloth (8) is put on using method as described above.
With this method, whereby a covering glass fiber cloth is put on after spraying or brushing epoxy resin (9 as shown in Figure 2), at least two layers of glass fiber cloth are needed. After all required covering layers have been put on, about 36 hours are needed for solidification. Next, polyster (10 as shown in Figure 2) is sprayed or brushed on above said glass fiber reinforced plastic, approximately 20 minutes later, covering glass fiber cloth layer (11) is put on with the method and main points similar to those for spraying or brushing epoxy resin. However, at least two layers of glass fiber cloth are to be put on, that is, another layer of glass fiber cloth (13) is to put over the polyster layer (12), and then another layer (14) of polyster is sprayed or brushed. After all layers have been put on and wrapping process has finished, about 48 hours are needed for solidification.Finally it is polished, painted and shined.
During above described operation all overlapping widths between glass fiber cloth are greater than 50mm, and ambient temperature during operation should be higher than 25 C, atmospheric humidity should be lower than 70%.
It is proved by experiment that car body made of such kind of composite material has advantages of high strength, light weight, long service life and low cost.
Moreover, by using said material and said method it becomes possible to make integral car body. Experiment shows, such car body has a good intergral construction, its weight is light, accounts for one third of the weight of common steel construction, therefore, gas consumption is reduced. Its strength is high so that when collision occurs, it may cause permanent deformation on common metal car outer cover, but for 'full plastic' car only some damage of paint and local tract of collision will happen. Its cost is low, it can be seen form above described material and its manufacturing method, that all selected raw materials are low cost materials, manufacturing method is simple, there is no need of broad space and complicated equipment, ordinary small firms are capable to make it. This car body shows good isolation feature for sound and heat, no corrosion, easiness of maitenance, and high practical value.
On the premise of not violating the spirit of present invention, it is also possible to use this composite material for making various boats,yachts, furniture, containers etc., there is a quite wide area of appliation.

Claims (21)

1. An integral car body characterized in that the body is made of high strength light weight composite material, said composite material being made by using at least one layer of glass fiber cloth soaked with epoxy resin and at least two layers of glass fiber cloth soaked with polyster to successively wrap a inner mould made of composite foam material fully with overlap.
2. The integral car body according to claim 1, characterized in that the composite material for making foam inner mould is polystyrene.
3. The integral car body according to claim 1, characterized in that the composite material for making foam inner mould is hard polyurethane.
4. The integral car body according to any one of claims 1 to 3, characterized in that the volume weight of foam composite material used for inner mould is about 25kg/m3.
5. The integral car body according to any one of claims 1 to 4, characterized in that the thickness of foam composite material used for inner mould is in a range of 10 to 500mm.
6. The integral car body according to claim 5, characterized in that the thickness of foam composite material used for inner mould is about 50mm.
7. The integral car body according to any one of claims 1 to 6, characterized in that the thickness of each layer of glass fiber cloth is in a range of 0.1 to 4mm.
8. The integral car body according to claim 7, characterized in that the thickness of each layer of glass fiber cloth is 0.25mm.
9. The integral car body according to any one of claims 1 to 8, characterized in that the glass fiber cloth is neutral, dewaxed.
10. The integral car body according to any one of claims 1 to 9, characterized in that the glass fiber cloth fully wrapping inner mould has about 5 layers.
11. The integral car body according to any one of claims 1 to 9, characterized in that there are two layers of glass fiber cloth soaked with epoxy resin and there are four layers of glass fiber cloth soaked with polyster.
12. A method of making an integral car body made of high strength, light weight composite material, characterized in that an inner mould is made of foam composite material according to required configuration, which is fully wrapped by at least one overlapping layer of glass fiber cloth soaked with epoxy resin, after solidification said mould is successively and fully wrapped by at least two overlapping glass fiber cloth soaked with polyster, its surface is then processed after solidification.
13. The method according to claim 12, characterized in that the overlapping width between each layer of glass fiber cloths should not be less than 50mm.
14. The method according to claim 12, characterized in that epoxy resin is diluted and then added with certain amount of solidifying agent.
15. A method of making an integal car body made of high strength, light weight composite material, characterized in that at first an inner mould is made of foam composite material according to required configuration, and then epoxy resin is sprayed evenly on the surface of inner mould, about 20 minutes later a layer of glass fiber cloth is plainly put on the surface of inner mould and wraps it with overlap, next, a layer of epoxy resin is sprayed or brushed to the extent that said layer of glass fiber cloth is totally soaked, then the second wrapping layer of glass fiber is put on, after this process has been done more than once and glass fiber reinforced plastic soaked with epoxy resin has been solidified, polyster is sprayed or brushed on its surface, about 20 minutes later, a glass fiber cloth is plainly put on and wraps the mould with overlap, polyster is sprayed or brushed once again to the extent that glass fiber cloth is totally soaked, such process is repeated more than once, at last, its surface is processed after its solidification.
16. The method according to claim 15, characterized in that the overlapping width between each glass fiber cloth should not be less than 50mm.
17. The method according to claim 15, characterized in that epoxy resin is diluted and then added with certain amount of solidifying agent.
18. The method according to claim 12 or 15, characterized in that certain amount of catalyst is to be added to polyster.
19. An integral car body substantially as hereinbefore described with reference to the accompanying drawings.
20. A method of making a integral car body substantially as hereinbefore described with reference to the accompanying drawings.
21. Any novel feature or combination of features described herein.
GB8607890A 1985-04-01 1986-04-01 Integral car body made of composite material and its manufacturing method Expired GB2177973B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN85101504.2A CN1003296B (en) 1985-04-01 1985-04-01 Full load-bearing car hull made of compd. material and the mfg. method

Publications (3)

Publication Number Publication Date
GB8607890D0 GB8607890D0 (en) 1986-05-08
GB2177973A true GB2177973A (en) 1987-02-04
GB2177973B GB2177973B (en) 1989-06-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB8607890A Expired GB2177973B (en) 1985-04-01 1986-04-01 Integral car body made of composite material and its manufacturing method

Country Status (2)

Country Link
CN (1) CN1003296B (en)
GB (1) GB2177973B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362345A (en) * 1992-01-28 1994-11-08 Inventio Ag Method of manufacturing integral railway coach bodies

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103935082A (en) * 2013-01-21 2014-07-23 杨贤斌 Product and manufacturing method thereof
CN103660315A (en) * 2013-12-29 2014-03-26 陈俞任 Steel mesh keel glass fiber reinforced plastic tank and armored vehicle
CN108314880A (en) * 2018-03-21 2018-07-24 富士房车（江苏）有限公司 A kind of cellular epoxy resin composite material production method and using body structure made of the material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362345A (en) * 1992-01-28 1994-11-08 Inventio Ag Method of manufacturing integral railway coach bodies

Also Published As

Publication number Publication date
CN85101504A (en) 1986-08-06
GB8607890D0 (en) 1986-05-08
CN1003296B (en) 1989-02-15
GB2177973B (en) 1989-06-21

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