CN108327168A - The production method of D braided composites cored screw spring - Google Patents
The production method of D braided composites cored screw spring Download PDFInfo
- Publication number
- CN108327168A CN108327168A CN201810387994.5A CN201810387994A CN108327168A CN 108327168 A CN108327168 A CN 108327168A CN 201810387994 A CN201810387994 A CN 201810387994A CN 108327168 A CN108327168 A CN 108327168A
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- Prior art keywords
- spring
- core model
- cored screw
- braided
- helical spring
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Classifications
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Springs (AREA)
Abstract
The present invention provides a kind of production method of D braided composites cored screw spring, comprises the following steps：First use can spin can braided fiber, three-dimensional woven tube is gone out with 3 D weaving craft woven on the core model outer surface of flexible bar shaped, obtains bar shaped preform；Then bar shaped preform is placed in the helical space formed between internal model and external mold；Next basis material is injected using VARTM (vacuum assisted resin transfer molding) technique in the helical space, and so that described matrix material is cured as composite material helical spring with the three-dimensional woven tube by temperature-pressure；The core model in helical spring is finally removed, D braided composites cored screw spring is obtained.The D braided composites cored screw spring that the present invention makes, has both the existing advantage such as lightweight, antifatigue, corrosion-resistant, impact resistance possessed by composite material helical spring, further improves the performances such as its lightweight, spring rate.
Description
Technical field
The present invention relates to a kind of production methods of composite material helical spring.
Background technology
With the progress of industrial technology, composite material obtains in fields such as aerospace, communications and transportation, machinery, buildings
Arrived extensive use, the spring being made from it, including leaf spring, helical spring etc. also in extensive application such as automobile, high ferros, wherein
Leaf spring due to design, make processing technology is simple and application is more extensive, to improve energy efficiency, lightweight, reducing the life-cycle
Cost etc. achieves larger effect.And helical spring is then due to various factors restriction, relatively slow, the existing production of development
Product and achievement in research also do not play the comprehensive advantage of composite material well.
With advances in technology, three dimensional weaving technique has obtained further development, also gradual gram of D braided composites
The defects of having taken of high cost, long in time limit, low production efficiency, complex process, unstable performance is realized, receives more and more,
And it plays strong strong mechanical performance, designability, shock resistance, resistant to damage, high temperature resistant, near-net-shape, be suitable for RTM (resin biographies
Pass molding) etc. the specialities such as the inexpensive combination process of OoA (non-autoclave), achieve good application effect.
Composite material helical spring can have light weight with alternative metals helical spring in each industrial circle extensive use
Change, antifatigue, corrosion-resistant, high temperature resistant the advantages that.However, previous composite material helical spring, is mostly used unidirectional fibre or unidirectional
Fiber is cladded with control of two-dimensional braided cloth or control of two-dimensional braided set makes, therefore spring silk is in solid form substantially.General Study thinks, along spring
The fiber in the silk +/- 45 degree of directions in direction may consequently contribute to promote spring performance, and closer to spring silk center, the efficiency of fiber is smaller.
Therefore some helical springs stick woven cloth or control of two-dimensional braided set with certain angle on surface, can partly improve performance and table
Effect is seen, but performance boost is limited, and since there are still mechanical property mismatches between each section, easily divided so can still exist
The weakness such as layer, the poor, short life of impact resistance, and improve process complexity.
Invention content
The object of the present invention is to provide a kind of production methods of D braided composites cored screw spring, make its making
Hollow spring out has both lightweight, shock resistance, antifatigue, corrosion-resistant, high temperature resistant possessed by composite material helical spring
Existing advantage, and its lightweight, spring rate performance higher.
The technical solution adopted by the present invention is as follows：
A kind of production method of D braided composites cored screw spring, it is characterized in that comprising the following steps：
One, use can spin can braided fiber, with 3 D weaving craft woven on the core model outer surface of flexible bar shaped
Go out three-dimensional woven tube, bar shaped preform is constituted with the core model and the three-dimensional woven tube；
Two, bar shaped preform is placed in the helical space formed between internal model and external mold；
Three, the helical space is made to form vacuum；Under the conditions of vacuum aided, base is injected in the helical space
Then body material makes described matrix material be cured as composite material helical spring with the three-dimensional woven tube by temperature-pressure；
Four, it opens external mold, exit internal model, obtain the composite material helical spring with core model；
Five, core model is removed, D braided composites cored screw spring is obtained.
The production method of the D braided composites cored screw spring, wherein：The core model with fusible material,
Soluble material or air bag are made, and the fusing point of the fusible material is higher than the solidification temperature of basis material, and is less than described matrix material
The softening temperature of material.
The production method of the D braided composites cored screw spring, wherein：On the lateral surface of the internal model
And/or the inner surface of the external mold is equipped with spiral helicine forming tank, to form the helical space.
The present invention also provides a kind of production methods of D braided composites cored screw spring, it is characterized in that comprising such as
Lower step：
One, on the hard core model outer surface of helical spring shape covering with can spin can braided fiber with 3 D weaving technique volume
The three-dimensional woven tube woven, the hard core model constitute helical spring shape preform with the three-dimensional woven tube；
Two, by helical spring shape preform by liquid molding process impregnation matrix material, and isolated material is coated；
Three, by the helical spring shape preform by temperature-pressure carry out curing molding, make basis material with it is described
Three-dimensional woven tube is compound to become composite material helical spring；
Four, the isolated material for removing composite material helical spring surface, obtains the composite material spiral bullet with core model
Spring；
Five, hard core model is removed, D braided composites cored screw spring is obtained.
The present invention also provides a kind of production methods of D braided composites cored screw spring, it is characterized in that comprising such as
Lower step：
One, on the hard core model outer surface of helical spring shape covering with can spin can braided fiber with 3 D weaving technique volume
The three-dimensional woven tube woven, the hard core model constitute helical spring shape preform with the three-dimensional woven tube；
Two, the helical spring shape pre-form surface is solid with being wound with the ribbon of three-dimensional woven tube same material
It is fixed；
Three, by gas phase or liquid deposition technique on the three-dimensional woven tube compound matrix material, become composite material
Helical spring；
Four, the compound that the ribbon on removal composite material helical spring surface is formed, obtains the composite material with core model
Helical spring；
Five, hard core model is removed, D braided composites cored screw spring is obtained.
The production method of the D braided composites cored screw spring, wherein：The three-dimensional woven tube it is interior
Lateral section is square or circle；The outer lateral section of the three-dimensional woven tube is square or circle.
The production method of the D braided composites cored screw spring, wherein：Described spin can braided fiber
It is carbon fiber, glass fibre, aramid fiber, super strong polyethylene fiber, silicon carbide fibre or silicon nitride fiber.
The production method of the D braided composites cored screw spring, wherein：Described matrix material be resin,
Carbon or ceramic matrix material.
The production method of the D braided composites cored screw spring, wherein：The material of the hard core model
It is made with fusible material or soluble material.
By using above-mentioned technical proposal, D braided composites cored screw spring can be smoothly produced,
The performances such as its lightweight, spring rate can be further improved.
Description of the drawings
Fig. 1 is the outside drawing of the bar shaped preform of the present invention；
Fig. 2 is the sectional view of the bar shaped preform of the present invention；
Fig. 3 is the structural schematic diagram that bar shaped preform is wound into internal model by the present invention；
Fig. 4 is the structural schematic diagram that the present invention increases external mold；
Fig. 5 is the schematic diagram for the composite material helical spring with core model that the present invention obtains；
Fig. 6 is the sectional view that helical spring melts the hollow spring obtained after core model；
Fig. 7 is the structure principle chart of the curing system of D braided composites cored screw spring provided by the invention；
Fig. 8 is enlarged drawing at B in Fig. 7；
Fig. 9 is the structural representation for being made of helical spring shape preform in the present invention hard core model and three-dimensional woven tube
Figure；
Figure 10 is that the cross section after helical spring shape preform cladding isolated material or winding of band-type object in Fig. 9 shows
It is intended to；
Figure 11 is the structure of the curing system of another D braided composites cored screw spring provided by the invention
Schematic diagram.
Reference sign：Core model 10；Three-dimensional woven tube 20；Internal model 30；External mold 40；Vacuum extractor 50；Space A；It is multiple
Condensation material helical spring 60；Injector 70；Temperature-pressure equipment 75；Hard core model 80；Isolated material 90；Gas phase or liquid deposition
Equipment 99.
Specific implementation mode
The present invention provides a kind of production method of D braided composites cored screw spring, with a preferred embodiment
It is explained, it includes following steps：
One, using carbon fiber, glass fibre, aramid fiber, super strong polyethylene fiber, silicon carbide fibre or silicon nitride fiber
Etc. can spin can braided fiber, using bar shaped low-melting alloy as core model 10, with 3 D weaving technique on 10 outer surface of the core model
Three-dimensional woven tube 20 is knit out, bar shaped preform is constituted with the core model 10 and the three-dimensional woven tube 20；Institute as shown in Figure 1, Figure 2
Show, in the present embodiment, the outer lateral section of the bar shaped preform is square, and inside cross-sectional is rounded (shape does not limit)；
Two, as shown in figure 3, bar shaped preform is wound into internal model 30, wherein the internal model 30 is cylinder,
Spiral helicine interior forming tank is formed on lateral surface, bar shaped preform is wound into along the interior forming tank in internal model, and
The bar shaped preform of a part protrudes from the outer surface of the internal model；
Three, as shown in figure 4, increasing external mold 40, the external mold 40 is put together by least two parts, is molded on inner surface
There are outer forming tank corresponding with the interior forming tank of the internal model 30, the interior forming tank of the outer forming tank and the internal model 30 close
It closes, the bar shaped preform is accommodated in the inner；
Four, as shown in Figure 7, Figure 8, the space A that the outer forming tank is formed with the interior forming tank is connected with vacuum means
50 are set, the space that the outer forming tank is formed with the interior forming tank is made to form vacuum；Under the conditions of vacuum aided, described outer
Injecting resin basis material in the space that forming tank is formed with the interior forming tank, then makes described matrix material by temperature-pressure
Material is cured as composite material helical spring 60 with the three-dimensional woven tube 20；Wherein, the fusing point of the low-melting alloy should be high
In the solidification temperature of basis material；
Five, it opens external mold 40, exit internal model 30, obtain the composite material helical spring 60 as shown in Figure 5 with core model 10；
Six, by heating, so that the core model 10 of 60 center position of composite material helical spring is melted and is flowed out, obtain
D braided composites cored screw spring (section is as shown in Figure 6)；Wherein, the fusing point of the low-melting alloy should be less than
The softening temperature of basis material after solidification.
Therefore, the D braided composites cored screw spring that the present invention also provides a kind of used in step 4
Curing system, as shown in Figure 7, Figure 8 comprising columnar internal model 30 and the external mold 40 for covering on the outside of internal model 30, internal model 30
Spiral helicine interior forming tank is formed on lateral surface, the external mold 40 is put together by least two parts, is molded on inner surface
There are outer forming tank corresponding with the interior forming tank of the internal model 30, the interior forming tank energy of the outer forming tank and the internal model 30
It is enough closely sealed；
Bar shaped preform is wrapped in the interior forming tank of the internal model, and be closed in the outer forming tank with it is described interior
In the space A that forming tank is formed comprising with the core model 10 of bar shaped made of low-melting alloy, and use carbon fiber, glass
Fiber, aramid fiber, super strong polyethylene fiber, silicon carbide fibre or silicon nitride fiber etc. can spin can braided fiber in the core model
The three-dimensional woven tube 20 gone out with 3 D weaving craft woven on 10 outer surfaces；
The space A that the outer forming tank is formed with the interior forming tank is connected with vacuum extractor 50, is also associated with injection
Machine 70 and temperature-pressure equipment 75, the injector 70 can inject the basis materials such as resin, the heating into the space
Pressurized equipment 75 makes described matrix material be cured as composite material helical spring 60 with the three-dimensional woven tube 20.
Wherein, the fusing point of the low-melting alloy should be above the solidification temperature of basis material, and be less than described matrix material
The softening temperature of material.
In above-described embodiment, the core model 10 can also use soluble material, the material that can be such as dissolved by chemical solvent
Material, water-soluble material etc., by the way that the composite material helical spring 60 with core model 10 to be placed in solvent in step 6, you can will
Core model 10 removes.
In addition, the core model 10 can also be air bag, by further taking out air bag deflation in step 6, you can by core model
10 removals.
Moreover, the present invention also provides the production methods of another D braided composites cored screw spring, including such as
Lower step：
One, as shown in Fig. 9, Figure 11, (it is preferably hollow-core construction, can also be reality in the hard core model 80 of helical spring shape
Core structure) on surface covering with can spin can the three-dimensional woven tube 20 that is gone out with 3 D weaving craft woven of braided fiber, the hard
Core model 80 constitutes helical spring shape preform with the three-dimensional woven tube 20；
Two, by helical spring shape preform by liquid molding process impregnation matrix material, and as shown in Figure 10, cladding
Isolated material 90 (such as OPP bands, vacuum bag or heat-shrink tube)；
Three, by the helical spring shape preform by temperature-pressure carry out curing molding, make basis material with it is described
Three-dimensional woven tube 20 is compound to become composite material helical spring 60；
Four, the isolated material 90 for removing 60 surface of composite material helical spring, obtains the composite material with core model 10
Helical spring 60 (similar as shown in Figure 5)；
Five, removal hard core model 80 obtains D braided composites cored screw spring (similar as shown in Figure 6).
The present invention also provides the production methods of another D braided composites cored screw spring, and it includes following steps
Suddenly：
One, as shown in Fig. 9, Figure 11, (it is preferably hollow-core construction, can also be reality in the hard core model 80 of helical spring shape
Core structure) on outer surface covering with can spin can the three-dimensional woven tube 20 that is gone out with 3 D weaving craft woven of braided fiber, it is described hard
Matter core model 80 constitutes helical spring shape preform with the three-dimensional woven tube 20；
Two, solid with being wound with the ribbon of 20 same material of three-dimensional woven tube in the helical spring shape pre-form surface
Fixed (as shown in Figure 10)；
Three, the helical spring preform is placed in gas phase or liquid deposition stove, passes through gas phase or liquid deposition
Technique deposits compound matrix material (such as carbon or ceramic matrix material) on the three-dimensional woven tube 20, becomes composite material spiral shell
Revolve spring 60；
Four, the compound that the ribbon on 60 surface of removal composite material helical spring is formed, obtains with the compound of core model 10
Material helical spring 60 (similar as shown in Figure 5)；
Five, removal hard core model 80 obtains D braided composites cored screw spring (similar as shown in Figure 6).
Wherein：It is described spin can braided fiber be carbon fiber, glass fibre, aramid fiber, super strong polyethylene fiber, carbonization
Silica fibre or silicon nitride fiber.Described matrix material is resin, carbon or ceramic matrix material.The material of the hard core model 80 with
Fusible material or soluble material are made.
Correspondingly, the solidification system of the D braided composites cored screw spring used in above two production method
System, as shown in Figure 10, Figure 11, the helical spring preform can be placed in internal gas phase or liquid deposition equipment by having
99。
Claims (9)
1. a kind of production method of D braided composites cored screw spring, it is characterized in that comprising the following steps：
One, use can spin can braided fiber, go out three on the core model outer surface of flexible bar shaped with 3 D weaving craft woven
Woven tube is tieed up, bar shaped preform is constituted with the core model and the three-dimensional woven tube；
Two, bar shaped preform is placed in the helical space formed between internal model and external mold；
Three, the helical space is made to form vacuum；Under the conditions of vacuum aided, matrix material is injected in the helical space
Then material makes described matrix material be cured as composite material helical spring with the three-dimensional woven tube by temperature-pressure；
Four, it opens external mold, exit internal model, obtain the composite material helical spring with core model；
Five, core model is removed, D braided composites cored screw spring is obtained.
2. the production method of D braided composites cored screw spring according to claim 1, it is characterised in that：Institute
Core model to be stated to be made with fusible material, soluble material or air bag, the fusing point of the fusible material is higher than the solidification temperature of basis material,
And less than the softening temperature of described matrix material.
3. the production method of D braided composites cored screw spring according to claim 1, it is characterised in that：Institute
It states on the lateral surface of internal model and/or the inner surface of the external mold is equipped with spiral helicine forming tank, to form the helical form
Space.
4. a kind of production method of D braided composites cored screw spring, it is characterized in that comprising the following steps：
One, on the hard core model outer surface of helical spring shape covering with can spin can braided fiber gone out with 3 D weaving craft woven
Three-dimensional woven tube, the hard core model and the three-dimensional woven tube constitute helical spring shape preform；
Two, by helical spring shape preform by liquid molding process impregnation matrix material, and isolated material is coated；
Three, the helical spring shape preform is subjected to curing molding by temperature-pressure, makes basis material and the three-dimensional
Woven tube is compound to become composite material helical spring；
Four, the isolated material for removing composite material helical spring surface, obtains the composite material helical spring with core model；
Five, hard core model is removed, D braided composites cored screw spring is obtained.
5. a kind of production method of D braided composites cored screw spring, it is characterized in that comprising the following steps：
One, on the hard core model outer surface of helical spring shape covering with can spin can braided fiber gone out with 3 D weaving craft woven
Three-dimensional woven tube, the hard core model and the three-dimensional woven tube constitute helical spring shape preform；
Two, the helical spring shape pre-form surface is fastened with the ribbon with three-dimensional woven tube same material；
Three, by gas phase or liquid deposition technique on the three-dimensional woven tube compound matrix material, become composite material spiral
Spring；
Four, the compound that the ribbon on removal composite material helical spring surface is formed, obtains the composite material spiral with core model
Spring；
Five, hard core model is removed, D braided composites cored screw spring is obtained.
6. the production method of the D braided composites cored screw spring according to claim 1,4 or 5, feature exist
In：The inside cross-sectional of the three-dimensional woven tube is square or circle；The outer lateral section of the three-dimensional woven tube is square or circle.
7. the production method of the D braided composites cored screw spring according to claim 1,4 or 5, feature exist
In：It is described spin can braided fiber be carbon fiber, glass fibre, aramid fiber, super strong polyethylene fiber, silicon carbide fibre, nitrogen
SiClx fiber.
8. the production method of the D braided composites cored screw spring according to claim 1,4 or 5, feature exist
In：Described matrix material is resin, carbon or ceramic matrix material.
9. the production method of D braided composites cored screw spring according to claim 4 or 5, feature exist
In：The material of the hard core model is made with fusible material or soluble material.
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| CN201810387994.5A CN108327168A (en) | 2018-04-26 | 2018-04-26 | The production method of D braided composites cored screw spring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810387994.5A CN108327168A (en) | 2018-04-26 | 2018-04-26 | The production method of D braided composites cored screw spring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109537744A (en) * | 2018-12-19 | 2019-03-29 | 吉林建筑大学 | Airtight item of the hollow rubber of built-in steel spring and its preparation method and application |
| CN111391364A (en) * | 2020-03-26 | 2020-07-10 | 中国电子科技集团公司第三十八研究所 | Method for forming liquid of woven carbon fiber waveguide preform |
| CN113524717A (en) * | 2020-04-20 | 2021-10-22 | 徐涛 | Manufacturing process method of hollow light fiber reinforced composite material helical spring |
| CN114290763A (en) * | 2022-01-25 | 2022-04-08 | 北京航空航天大学 | Composite material spiral structure and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537744A (en) * | 2018-12-19 | 2019-03-29 | 吉林建筑大学 | Airtight item of the hollow rubber of built-in steel spring and its preparation method and application |
| CN111391364A (en) * | 2020-03-26 | 2020-07-10 | 中国电子科技集团公司第三十八研究所 | Method for forming liquid of woven carbon fiber waveguide preform |
| CN113524717A (en) * | 2020-04-20 | 2021-10-22 | 徐涛 | Manufacturing process method of hollow light fiber reinforced composite material helical spring |
| CN114290763A (en) * | 2022-01-25 | 2022-04-08 | 北京航空航天大学 | Composite material spiral structure and preparation method thereof |
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