CN105729710A - Preparation method of vehicle trunk cover with composite material - Google Patents
Preparation method of vehicle trunk cover with composite material Download PDFInfo
- Publication number
- CN105729710A CN105729710A CN201610148732.4A CN201610148732A CN105729710A CN 105729710 A CN105729710 A CN 105729710A CN 201610148732 A CN201610148732 A CN 201610148732A CN 105729710 A CN105729710 A CN 105729710A
- Authority
- CN
- China
- Prior art keywords
- inner panel
- fiber reinforced
- outside plate
- reinforced plastic
- plastic mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000005187 foaming Methods 0.000 claims abstract description 26
- 239000003292 glue Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 11
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 40
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 40
- 239000006260 foam Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000000805 composite resin Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 8
- 239000005357 flat glass Substances 0.000 abstract 8
- 239000010959 steel Substances 0.000 abstract 8
- 238000007789 sealing Methods 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/08—Injection moulding
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a preparation method of a vehicle trunk cover with a composite material. The preparation method comprises the following steps: (1) an inner plate and an outer plate of the vehicle trunk cover are formed; and the inner plate is provided with a foaming glue inlet hole and a foaming glue outlet hole; (2) the surfaces of the inner plate and the outer plate, as male molds, are respectively turned to form an inner plate glass steel mold and an outer plate glass steel mold corresponding to the positions of the foaming glue inlet hole and the foaming glue outlet hole of the inner plate; and the inner plate glass steel mold is correspondingly provided with a foaming glue inlet and a foaming glue outlet; (3) the inner plate and the outer plate are respectively bonded and put in the inner plate glass steel mold and the outer plate glass steel mold; structural glue is coated on the edges of the inner plate and the outer plate; the inner plate glass steel mold and the outer plate glass steel mold are closed; and the inner plate and the outer plate are glued to form a sealing cavity; and (4) a foaming material is injected in the sealing cavity through the foaming glue inlet in the inner plate glass steel mold.
Description
Technical field
The preparation method that the present invention relates to a kind of automotive composite material case cover.
Background technology
Along with the raising of discharge standard and the pressure of energy-saving and emission-reduction increase day by day, domestic and international automaker concentrates on and vehicle body is carried out loss of weight.In the measure of numerous vehicle body losss of weight, adopting specific strength and the high new material of specific modulus is exactly an effective loss of weight measure.The application of composite ground not only can be greatly lowered tare, moreover it is possible to is greatly enhanced the security performance of automobile.At present, the composite that some non-main force support structures such as vehicle boot lid mostly adopt is sandwich structure form, has high specific stiffness.
In prior art, the production technology of automotive composite material case cover sandwich structure, the foam firmly processed that many employings are ready-made, not only production efficiency is low, and it is limited to size and the thickness of foam core sheet material, it is impossible to freely design the Composite Sandwich structure of arbitrary shape, make troubles to production and processing.
Summary of the invention
The goal of the invention of the present invention is in that the preparation method providing a kind of automotive composite material case cover, it may be achieved online foaming, convenient production and processing.
Realize the technical scheme of the object of the invention:
A kind of preparation method of automotive composite material case cover, it is characterised in that:
Step 1: the inner panel of formed automobile case cover, outside plate, inner panel has and foams into glue hole, foaming plastic hole；
Step 2: turn over respectively for formpiston with the surface of inner panel, outside plate and make inner panel fiber reinforced plastic mold, outside plate fiber reinforced plastic mold, corresponding inner panel foams into glue hole, foaming position, plastic hole, and inner panel fiber reinforced plastic mold has accordingly and foams into Jiao Kou, foaming gum exudation mouth；
Step 3: inner panel, outside plate are fitted respectively and is positioned over inner panel fiber reinforced plastic mold, outside plate fiber reinforced plastic mold, inner panel, outside plate edge smearing structure glue；By inner panel fiber reinforced plastic mold and outside plate fiber reinforced plastic mold matched moulds, inner panel glueds joint with outside plate, is formed and seals chamber；
Step 4: enter Jiao Kou by the foaming on inner panel fiber reinforced plastic mold, to annular seal space indoor injecting frothing material.
In step 1, outside plate adopts carbon fiber enhancement resin base composite material, by vacuum introducing technology or prepeg process molding；Inner panel adopts galss fiber reinforced resin based composites, passes through injection mo(u)lding.
In step 3, inner panel fiber reinforced plastic mold is positioned at the surface of outside plate fiber reinforced plastic mold.
In step 3, structure glue adopts polyurethane adhesive or epoxy glue.
In step 4, the expanded material of injection is the resin compound being made up of isocyanates, polyhydric alcohol.
In step 1, outside plate adopts carbon-fibre reinforced epoxy resin, and inner panel adopts short glass fiber reinforced polyamide.
The invention have the benefit that
The present invention turns over respectively for formpiston with the surface of inner panel, outside plate and makes inner panel fiber reinforced plastic mold, outside plate fiber reinforced plastic mold, and corresponding inner panel foams into glue hole, foaming position, plastic hole, and inner panel fiber reinforced plastic mold has accordingly and foams into Jiao Kou, foaming gum exudation mouth；Inner panel, outside plate are fitted respectively and put into inner panel fiber reinforced plastic mold, outside plate fiber reinforced plastic mold, inner panel, outside plate edge smearing structure glue；By inner panel fiber reinforced plastic mold and outside plate fiber reinforced plastic mold matched moulds, inner panel glueds joint with outside plate, is formed and seals chamber；Jiao Kou is entered, to annular seal space indoor injecting frothing material by the foaming on inner panel fiber reinforced plastic mold.Present invention achieves the online foaming of vehicle boot lid Composite Sandwich structure, do not need the rigid foam needing to process fixed profile size in advance again, the processing of Composite Sandwich structure is convenient, is effectively improved working (machining) efficiency, can produce the Composite Sandwich structure of arbitrary shape.Inner panel fiber reinforced plastic mold of the present invention, outside plate fiber reinforced plastic mold can to inner panel, outside plate apply pressure, when effectively preventing injecting frothing material, inner panel, outside plate deformation, be further ensured that processing effect.
Outside plate of the present invention adopts carbon fiber enhancement resin base composite material, by vacuum introducing technology or prepeg process molding；Inner panel adopts galss fiber reinforced resin based composites, passes through injection mo(u)lding；Carbon fiber enhancement resin base composite material of the present invention can effectively strengthen the intensity of outside plate, and galss fiber reinforced resin based composites is easier to molding so that the preparation of vehicle boot lid reaches effect more preferably.
The present invention is at the edge smearing structure glue of inner panel, outside plate, and structure glue adopts polyurethane adhesive or epoxy glue, by the structure glue of inner panel, outer plate edge so that bonding between inner panel, outside plate, and convenient formation injecting glue cavity.The expanded material that the present invention injects is the resin compound being made up of isocyanates, polyhydric alcohol, has foaming effect more preferably.
Accompanying drawing explanation
Fig. 1 is the structural representation of automotive composite material case cover.
Detailed description of the invention
As it is shown in figure 1, the structure of automotive composite material case cover is made up of inner panel 1, foamed core layer 2, outside plate 3.Prepare automotive composite material case cover to comprise the steps:
Step 1: be utilized respectively interior board mold and the inner panel of outside plate mould molding vehicle boot lid, outside plate, and have at inner panel and foam into glue hole, foaming plastic hole (diameter is Φ 5～Φ 10)；Outside plate adopts carbon fiber enhancement resin base composite material, and by vacuum introducing technology or prepeg process molding, during enforcement, outside plate adopts 3K twills reinforced epoxy.Inner panel adopts galss fiber reinforced resin based composites, and by injection mo(u)lding, during enforcement, inner panel adopts short glass fiber reinforced polyamide (content of glass fiber 30%) moulding.
Step 2: turn over respectively for formpiston with the surface of inner panel, outside plate and make inner panel fiber reinforced plastic mold, outside plate fiber reinforced plastic mold, corresponding inner panel foams into glue hole, foaming position, plastic hole, and inner panel fiber reinforced plastic mold has accordingly and foams into Jiao Kou, foaming gum exudation mouth.
Step 3: by glued joint mould, inner panel, outside plate are fitted respectively and are positioned over inner panel fiber reinforced plastic mold, outside plate fiber reinforced plastic mold, inner panel, outside plate edge smearing structure glue；By inner panel fiber reinforced plastic mold and outside plate fiber reinforced plastic mold matched moulds, inner panel glueds joint with outside plate, is formed and seals chamber.Inner panel fiber reinforced plastic mold is positioned at the surface of outside plate fiber reinforced plastic mold, and structure glue adopts polyurethane adhesive or epoxy glue.
Step 4: enter Jiao Kou by the foaming on inner panel fiber reinforced plastic mold, to annular seal space indoor injection polyurethane foams, it is possible to control the rigidity of sandwich structure, intensity by controlling the kind of polyurethane foams.In the present embodiment, the expanded material of injection is the resin compound being made up of isocyanates, polyhydric alcohol.
Claims (6)
1. the preparation method of an automotive composite material case cover, it is characterised in that:
Step 1: the inner panel of formed automobile case cover, outside plate, inner panel has and foams into glue hole, foaming plastic hole；
Step 2: turn over respectively for formpiston with the surface of inner panel, outside plate and make inner panel fiber reinforced plastic mold, outside plate fiber reinforced plastic mold, corresponding inner panel foams into glue hole, foaming position, plastic hole, and inner panel fiber reinforced plastic mold has accordingly and foams into Jiao Kou, foaming gum exudation mouth；
Step 3: inner panel, outside plate are fitted respectively and is positioned over inner panel fiber reinforced plastic mold, outside plate fiber reinforced plastic mold, inner panel, outside plate edge smearing structure glue；By inner panel fiber reinforced plastic mold and outside plate fiber reinforced plastic mold matched moulds, inner panel glueds joint with outside plate, is formed and seals chamber；
Step 4: enter Jiao Kou by the foaming on inner panel fiber reinforced plastic mold, to annular seal space indoor injecting frothing material.
2. method according to claim 1, it is characterised in that: in step 1, outside plate adopts carbon fiber enhancement resin base composite material, by vacuum introducing technology or prepeg process molding；Inner panel adopts galss fiber reinforced resin based composites, passes through injection mo(u)lding.
3. method according to claim 2, it is characterised in that: in step 3, inner panel fiber reinforced plastic mold is positioned at the surface of outside plate fiber reinforced plastic mold.
4. method according to claim 3, it is characterised in that: in step 3, structure glue adopts polyurethane adhesive or epoxy glue.
5. method according to claim 4, it is characterised in that: in step 4, the expanded material of injection is the resin compound being made up of isocyanates, polyhydric alcohol.
6. the method according to claim 25, it is characterised in that: in step 1, outside plate adopts carbon-fibre reinforced epoxy resin, and inner panel adopts short glass fiber reinforced polyamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148732.4A CN105729710A (en) | 2016-03-16 | 2016-03-16 | Preparation method of vehicle trunk cover with composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148732.4A CN105729710A (en) | 2016-03-16 | 2016-03-16 | Preparation method of vehicle trunk cover with composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105729710A true CN105729710A (en) | 2016-07-06 |
Family
ID=56251227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610148732.4A Pending CN105729710A (en) | 2016-03-16 | 2016-03-16 | Preparation method of vehicle trunk cover with composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105729710A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365143A (en) * | 2015-11-20 | 2016-03-02 | 奇瑞汽车股份有限公司 | On-line foam forming method for composite material sandwich structure |
-
2016
- 2016-03-16 CN CN201610148732.4A patent/CN105729710A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365143A (en) * | 2015-11-20 | 2016-03-02 | 奇瑞汽车股份有限公司 | On-line foam forming method for composite material sandwich structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |
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| RJ01 | Rejection of invention patent application after publication |