CN107891615A - Composite frame forming method - Google Patents
Composite frame forming method Download PDFInfo
- Publication number
- CN107891615A CN107891615A CN201711200579.6A CN201711200579A CN107891615A CN 107891615 A CN107891615 A CN 107891615A CN 201711200579 A CN201711200579 A CN 201711200579A CN 107891615 A CN107891615 A CN 107891615A
- Authority
- CN
- China
- Prior art keywords
- chassis
- foam
- side plate
- loose piece
- mould
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to a kind of composite manufacturing field, specifically a kind of composite frame forming method.Comprise the following steps, the making of precast body：The structure of foam is designed first, it is necessary in pre-buried inserts on foam, and hollow out is carried out in its relevant position, prepreg is finally cut, the paving by the way of " returning " font on foam, certain continuity for ensureing fiber, after a number of prepreg of paving, using vacuum bag technique pre-compacted；Mold design：Mould is divided into chassis, upper lid, side plate and internal loose piece, and totally 4 module compositions, chassis form groove by machining, and internal loose piece is embedded on chassis, and side plate is connected by bolt with chassis, and is positioned by alignment pin, and internal loose piece uses wedge shaped；Curing mechanism：Precast body is first put into mould chassis, mechanically pins side plate, then pressure is applied to upper lid by press, so as to reach the purpose of matched moulds；Solidification temperature is 115 °~125 °C, and hardening time is 2~2.5h.
Description
Technical field
The present invention relates to a kind of manufacturing field of composite, specifically a kind of composite frame forming method.
Background technology
It is well known that because fibre reinforced composites have, specific strength is high, specific modulus is big, fatigue performance is good, resistance toization
The advantages that corrosivity is good is learned, while because of its structure design and being made into one advantage so that composite is in aerospace field
It is widely used.
Main load-bearing part of the vehicle frame as bracket, there is certain requirement to its technical indicator.Most of traditional vehicle frame uses
Iron material matter is welded, and in surface spraying corrosion resistant coating, has the shortcomings that weight is big, perishable, pad easy fracture.Traditional
The manufacture of carbon fibre composite vehicle frame, it manufactures mould structure and complex manufacturing, and a kind of mould can only produce one
The vehicle frame of kind structure.
The content of the invention
The purpose of the present invention is exactly to overcome above-mentioned existing technical deficiency, there is provided a kind of composite frame shaping side
Method, the advantages such as simple to operate, process is few and product quality is stable；Both precast body can have been ensured smoothly enters mould, also overcomes product
There is the phenomenon of material extrusion, additionally it is possible to realize one module multiple usages, produce the vehicle frame of different structure.
The present invention solves the technical scheme that above-mentioned technical problem uses：A kind of composite frame forming method, it is special
Levy and be to comprise the following steps,
The making of precast body：The structure of foam is designed first, it is necessary in pre-buried inserts on foam, is engraved in its relevant position
Sky, secondly with sand paper polishing foam and insert surface, remove foreign matter and make its rough surface, prepreg is finally cut, in foam
The upper paving by the way of " returning " font, certain continuity for ensureing fiber, after a number of prepreg of paving, using vacuum
Bag technique pre-compacted, precompressed 3~5 times；
Mold design：Mould is divided into chassis, upper lid, side plate and internal loose piece totally 4 module compositions, and chassis is by being machined shape
Into groove, internal loose piece is embedded on chassis, and side plate is connected by bolt with chassis, and is positioned by alignment pin, internal
Loose piece uses wedge shaped；
Curing mechanism：Precast body is first put into mould chassis, mechanically pins side plate, then apply to upper lid by press
Pressure, so as to reach the purpose of matched moulds；Solidification temperature is 115 °~125 °C, and hardening time is 2~2.5h.
The invention has the advantages that simple to operate, process is few and the advantages such as product quality is stable；Both can ensure prefabricated
Body smoothly enters mould, also overcomes product the phenomenon of material extrusion occur, the orientation being put into by adjusting loose piece, additionally it is possible to realize that a mould is more
With producing the vehicle frame of different structure.
Embodiment
With reference to embodiment, the invention will be further described：
Comprise the following steps：
Mould is divided into chassis, upper lid, side plate and internal loose piece, and totally 4 module compositions, chassis form groove by machining,
Internal loose piece is embedded on chassis, the orientation being put into by adjusting loose piece, the vehicle frame of different structure can be produced, so as to meet to connect
Mouth multiple demands.Side plate is connected by bolt with chassis, and is positioned by alignment pin.Internal loose piece uses wedge shape
Shape, significantly improves the mould that enters of precast body, and overcomes product the phenomenon of material extrusion occur；
Precast body is the paving prepreg on foam, and laying includes laying direction, the laying number of plies and laying fiber continuity
Design, paving mode use " returning " font method, ensure the continuity of fiber；The structure of foam is designed first, it is necessary in foam
During upper pre-buried inserts, hollow out is carried out in its relevant position, secondly with sand paper polishing foam and insert surface, foreign matter is removed and makes it
Rough surface, prepreg is finally cut, the paving by the way of " returning " font on foam, certain continuity for ensureing fiber,
After a number of prepreg of paving, using vacuum bag technique pre-compacted, precompressed 3~5 times, when vacuumizing pre-compacted, pressure for-
0.095 ~ -0.1MPa, 15 ~ 30 minutes time；
The inserts of frame interior is pre-buried in the foam, and the inserts on vehicle frame surface need to be positioned with mould；Inserts and foam and
Body connected mode is that inserts has ears piece and surface carried out blasting treatment, and auricle is between foam and prepreg；
By frame body, inserts and the integrated curing molding of foam progress, the wherein connected mode of inserts and foam and body,
It is forming method and ensures insert structure intensity, the key of rigidity.Due to the high temperature epoxy resin of use, solidification temperature is
115 ° ~ 125 °C, hardening time is 2~2.5h；
After global formation, inserts is machined, and polished material surface with sand paper, with acetone wiped clean, is carried out
Subsequent paint.
Claims (1)
- A kind of 1. composite frame forming method, it is characterised in that comprise the following steps,The making of precast body：The structure of foam is designed first, it is necessary in pre-buried inserts on foam, is engraved in its relevant position Sky, secondly with sand paper polishing foam and insert surface, remove foreign matter and make its rough surface, prepreg is finally cut, in foam The upper paving by the way of " returning " font, certain continuity for ensureing fiber, after a number of prepreg of paving, using vacuum Bag technique pre-compacted, precompressed 3~5 times；Mold design：Mould is divided into chassis, upper lid, side plate and internal loose piece totally 4 module compositions, and chassis is by being machined shape Into groove, internal loose piece is embedded on chassis, and side plate is connected by bolt with chassis, and is positioned by alignment pin, internal Loose piece uses wedge shaped；Curing mechanism：Precast body is first put into mould chassis, mechanically pins side plate, then apply to upper lid by press Pressure, so as to reach the purpose of matched moulds；Solidification temperature is 115 °~125 °C, and hardening time is 2~2.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711200579.6A CN107891615A (en) | 2017-11-27 | 2017-11-27 | Composite frame forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711200579.6A CN107891615A (en) | 2017-11-27 | 2017-11-27 | Composite frame forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107891615A true CN107891615A (en) | 2018-04-10 |
Family
ID=61804690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711200579.6A Pending CN107891615A (en) | 2017-11-27 | 2017-11-27 | Composite frame forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107891615A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431183A (en) * | 2011-10-14 | 2012-05-02 | 航天特种材料及工艺技术研究所 | Forming die and method for manufacturing forming parts by using forming die |
| CN105881888A (en) * | 2016-04-07 | 2016-08-24 | 山东英特力新材料有限公司 | Method for mounting equipment on composite material sandwich panel |
-
2017
- 2017-11-27 CN CN201711200579.6A patent/CN107891615A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431183A (en) * | 2011-10-14 | 2012-05-02 | 航天特种材料及工艺技术研究所 | Forming die and method for manufacturing forming parts by using forming die |
| CN105881888A (en) * | 2016-04-07 | 2016-08-24 | 山东英特力新材料有限公司 | Method for mounting equipment on composite material sandwich panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180410 |