CN106182521A - Wrapping formed laser curing prepares composite - Google Patents
Wrapping formed laser curing prepares composite Download PDFInfo
- Publication number
- CN106182521A CN106182521A CN201610555826.3A CN201610555826A CN106182521A CN 106182521 A CN106182521 A CN 106182521A CN 201610555826 A CN201610555826 A CN 201610555826A CN 106182521 A CN106182521 A CN 106182521A
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- CN
- China
- Prior art keywords
- laser
- prepreg
- core
- wrapping formed
- curing
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- 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.)
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0838—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using laser
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Wrapping formed heating cure method is prepared composite and is had that product shape and size are limited by baking oven volume, continuous production is poor, capacity usage ratio is low, production efficiency is low and the shortcoming such as relatively costly, the present invention replaces the warming-up device solidification material prepreg layers such as baking oven with laser curing, prepare composite, size limitation and the homogeneous temperature sex chromosome mosaicism of large scale oven interior without baking oven, without gummosis, drip glue problem, product quality is more preferable, capacity usage ratio is high, simplifying production procedure, production cost is low.Wiring apparatus is utilized to obtain the prepreg (2) being wound on core (1), adjust laser follower (3) to original position, start laser follower (3) and be allowed to outgoing laser beam (4), make core turn round according to direction (6) simultaneously, make laser follower (3) often revolve one-turn the speed feeding of a sweep bandwidth (L) with core according to direction of feed (5) simultaneously, after laser beam (4) is scanned across whole prepreg (2), the laser curing course of processing completes.
Description
Technical field
Wrapping formed laser curing is prepared composite and is belonged to a kind of composite material and preparation method thereof.
Background technology
Conventional composite material and preparation method thereof has multiple, and one of them is wound around molding heating cure method.
Concrete preparation process is first to manufacture a core, in its outer felt around one or more layers reinforcing fiber prepreg tape, shape
Become material prepreg layer, then through baking oven heating cure molding, prepare composite.
Wrapping formed heating cure method have anti-internal pressure capability by force, the most easy to crack, designability good and technique is more flexible etc.
Advantage.
But have that product shape and size are limited by baking oven volume, continuous production is poor, capacity usage ratio is low, easily occur
Gummosis and drip glue, production efficiency is low, automaticity is the highest and the shortcoming such as relatively costly.
Summary of the invention
Present invention aim at providing a kind of shortcoming that can overcome conventional Wrapping formed heating cure method, use laser curing
Replace the composite material and preparation method thereof of the warming-up device solidification material prepreg layers such as baking oven.
Laser projections, on material, can produce certain photothermal conversion effect, and this photothermal conversion effect can bring material
Surface and internal temperature raise effect.
Under specific direction laser irradiates, material is depended on many factors by surface to internal variations in temperature, including throwing
Penetrate degree of depth χ, absorption coefficient and scattering coefficient S, if incident laser fluence isI 0 , then the laser energy that obtains at degree of depth χ
Density is:I=I o exp(-(α+S)χ)。
The laser light energy that more depths obtains is the fewest, and this phenomenon will cause material internal on laser direction of illumination to occur successively decreasing
Thermograde, makes to be difficult to the solidification temperature needed for synchronization gain at the slightly larger prepreg different depth of thickness.
One solution of the present invention is the shape of design laser follower institute Output of laser hot spot, thus can be at core
In the case of mould rotating speed is certain, by increasing the length and width of laser follower institute Output of laser hot spot, increase prepreg
The time that on layer, any point is irradiated with a laser, thus add thermal diffusion time, it is achieved the homogenization of prepreg internal temperature.
Second solution of the present invention is to add the filler of debita spissitudo in the resin liquid constituting prepreg, to change
Become absorption coefficient and the scattering coefficient S of prepreg so that the prepreg that cross section effective dimensions is certain is internal under laser irradiates
Favourable thermograde occurs.
3rd solution of the present invention is different with the material of resin liquid according to reinforcing fiber bundles in prepreg, choosing
Select the irradiating laser light source of different wave length, to change absorption coefficient and the scattering coefficient S of prepreg so that the effective chi in cross section
Very little certain prepreg is internal under laser irradiates there is favourable thermograde.
Thoroughly break away from the restriction of baking oven due to the present invention, made Wrapping formed technology prepare large scale, low cost composite wood
Material is possibly realized.
Use Wrapping formed laser curing to prepare composite and will obtain following beneficial effect:
Firstly, since completely abolished curing oven, prepared by Wrapping formed laser curing makes core size on composite theory
Can be arbitrarily large, and without having to worry about the size of baking oven and the homogeneous temperature sex chromosome mosaicism of large scale oven interior.
Secondly as laser curing speed is exceedingly fast, often it is irradiated to solidification from laser and completes only to need 1～3 second, it is to avoid dry
The gummosis that slowly causes due to programming rate during case solidification, dripping glue problem, product quality is more preferable.
3rd, capacity usage ratio is high, simplifies production procedure, with short production cycle, the automatization of production, intelligence degree
Height, that reduces production site takies and liberates manpower, and production cost is low.
Optimizing, the heating power of laser beam of the present invention can realize with the speed of gyration of core mating by design, protects
Demonstrate,prove the optimum temperature needed for composite solidification.
Optimizing, the present invention can increase by increasing the length and width of laser follower institute Output of laser hot spot
Add the time that prepreg is irradiated with a laser, thus add thermal diffusion time, it is achieved the homogenization of prepreg internal temperature.
Optimizing, the present invention adds the filler of debita spissitudo in the resin liquid constituting prepreg, to change preimpregnation
The absorption coefficient of material and scattering coefficient S so that prepreg inside under laser irradiates that cross section effective dimensions is certain has
The thermograde of profit.
Optimizing, the present invention is different with the material of resin liquid according to reinforcing fiber bundles in prepreg, selects different wave length
Irradiating laser light source, to change absorption coefficient and the scattering coefficient S of prepreg so that the preimpregnation that cross section effective dimensions is certain
The bed of material is internal under laser irradiates there is favourable thermograde.
Optimizing, the core of the present invention can use low thermal conductivity material, reduces the prepreg caused to core heat transfer
The heat loss of layer, to reduce the thermograde within the lower prepreg of laser irradiation, improves solidification quality.
Optimizing, the core of the present invention can use low heat capacity material, reduces the prepreg that core intensification heat absorption causes
The heat loss of layer, to reduce the thermograde within the lower prepreg of laser irradiation, improves solidification quality.
Optimizing, the core of the present invention can use non-revolved body, in this case, it is possible to by under computer control
Core speed change revolution, it is achieved be irradiated to the uniformity of the laser energy density of prepreg.
Optimizing, when the core of the present invention uses non-revolved body, core is motionless, it is possible to defeated by mechanical hand manipulation laser
Go out device, make laser beam that prepreg is carried out uniform speed scanning, it is achieved be irradiated to prepreg laser energy density uniform one
Cause.
Optimize, when the core of the present invention uses non-revolved body, it is possible in the case of core at the uniform velocity turns round, by meter
Calculation machine controls lower laser follower Variable power laser and exports, it is achieved be irradiated to prepreg laser energy density uniform one
Cause.
Optimizing, the laser follower of the present invention can be with galvanometer so that outgoing laser beam bandwidth increases considerably,
Thus increase substantially working (machining) efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is the implementation process schematic diagram of the present invention, and 1 is core, and 2 is prepreg, and 3 is laser follower, and 4 is sharp
Light beam, 5 is laser follower direction of feed, and 6 is core gyratory directions, and L is the sweep bandwidth of laser beam.
Utilize Wiring apparatus to obtain the prepreg 2 being wound on core 1, adjust laser follower 3 to original position, open
Dynamic laser follower 3 is allowed to outgoing laser beam 4, makes core turn round according to direction 6 simultaneously, makes laser follower 3 according to entering simultaneously
Often revolve one-turn the speed feeding of about sweep bandwidth L with core to direction 5, laser beam 4 is scanned across whole prepreg 2
After, the laser curing course of processing completes.
The heating power of laser beam 4 of the present invention can be mated by design with the speed of gyration of core 1, it is ensured that prepreg 2
Optimum temperature needed for solidification.
The present invention can increase prepreg by increasing the length and width of 3 Output of laser hot spots of laser follower
The time that on layer 2, any point is irradiated with a laser, thus add thermal diffusion time, it is achieved prepreg 2 inside solidification temperature
Homogenization.
The present invention adds the filler of debita spissitudo in the resin liquid constituting prepreg, to change the absorptance of prepreg
α and scattering coefficient S so that prepreg 2 temperature that internal appearance is optimal under the irradiation of laser beam 4 that cross section effective dimensions is certain
Degree gradient.
The present invention is different with the material of resin liquid according to reinforcing fiber bundles in prepreg, selects the irradiating laser of different wave length
Light source, to change absorption coefficient and the scattering coefficient S of prepreg so that effective dimensions certain prepreg 2 in cross section is at laser
There is optimal thermograde in the lower inside of irradiating of bundle 4.
The core 1 of the present invention can use low thermal conductivity material, reduces the heat of the prepreg 2 caused to core 1 heat transfer
Loss, to reduce the thermograde within lower prepreg 2 of irradiating of laser beam 4, raising solidification quality.
The core 1 of the present invention can use low heat capacity material, reduces the heat of the prepreg 2 that core 1 intensification heat absorption causes
Loss, to reduce the thermograde within lower prepreg 2 of irradiating of laser beam 4, raising solidification quality.
The core 1 of the present invention can use non-revolved body, in this case, it is possible to the core 1 under being controlled by computer
Speed change is turned round, it is achieved be irradiated to the uniformity of the laser energy density of prepreg 2.
When the core 1 of the present invention uses non-revolved body, solidification process core mould 1 is motionless, it is possible to swashed by mechanical hand manipulation
Light follower 3, makes laser beam 4 that prepreg 2 is carried out uniform speed scanning, it is achieved to be irradiated to the laser energy density of prepreg 2
Uniformity.
When the core 1 of the present invention uses non-revolved body, it is possible in the case of core 1 at the uniform velocity turns round, by computer control
Laser follower 3 Variable power laser output under Zhi, it is achieved be irradiated to the uniformity of the laser energy density of prepreg 2.
The laser follower 3 of the present invention can be with galvanometer so that sweep bandwidth L of outgoing laser beam 4 increases considerably,
Thus increase substantially working (machining) efficiency.
Claims (11)
- The most Wrapping formed laser curing is prepared composite and is belonged to a kind of composite material and preparation method thereof, it is therefore intended that use laser curing Replace the warming-up device solidification material prepreg layers such as baking oven, prepare composite, it is characterized in that: utilize Wiring apparatus to obtain The prepreg (2) being wound on core (1), adjusts laser follower (3) and makes to original position, startup laser follower (3) Outgoing laser beam (4), make simultaneously core according to direction (6) turn round, make laser follower (3) according to direction of feed (5) simultaneously Often revolve one-turn the speed feeding of about sweep bandwidth (L) with core, laser beam (4) is scanned across whole prepreg (2) After, the laser curing course of processing completes.
- Wrapping formed laser curing the most as claimed in claim 1 prepares composite, it is characterized in that: the heating of laser beam (4) Power can be mated by design with the speed of gyration of core (1), it is ensured that the optimum temperature needed for prepreg (2) solidification.
- Wrapping formed laser curing the most as claimed in claim 1 prepares composite, it is characterized in that: can be by increasing laser The length and width of follower (3) institute Output of laser hot spot, increase that the upper any point of prepreg (2) is irradiated with a laser time Between, thus add thermal diffusion time, it is achieved the homogenization of prepreg (2) inside solidification temperature.
- Wrapping formed laser curing the most as claimed in claim 1 prepares composite, it is characterized in that: in the tree constituting prepreg Fat liquid adds the filler of debita spissitudo, to change absorption coefficient and the scattering coefficient S of prepreg so that cross section effective dimensions Certain prepreg (2) is internal under the irradiation of laser beam (4) there is optimal thermograde.
- Wrapping formed laser curing the most as claimed in claim 1 prepares composite, it is characterized in that: strengthen according in prepreg Fibre bundle is different with the material of resin liquid, select different wave length irradiating laser light source, with change prepreg absorption coefficient and Scattering coefficient S so that the prepreg (2) that cross section effective dimensions is certain internal appearance under the irradiation of laser beam (4) is optimal Thermograde.
- Wrapping formed laser curing the most as claimed in claim 1 prepares composite, it is characterized in that: core (1) can use Low thermal conductivity material, reduces the heat loss of the prepreg (2) caused to core (1) heat transfer, to reduce the irradiation of laser beam (4) The thermograde that lower prepreg (2) is internal, improves solidification quality.
- Wrapping formed laser curing the most as claimed in claim 1 prepares composite, it is characterized in that: core (1) can use Low heat capacity material, reduces the heat loss of the prepreg (2) that core (1) intensification heat absorption causes, to reduce the irradiation of laser beam (4) The thermograde that lower prepreg (2) is internal, improves solidification quality.
- Wrapping formed laser curing the most as claimed in claim 1 prepares composite, it is characterized in that: core (1) can use Non-revolved body, in this case, it is possible to core (1) speed change under being controlled by computer is turned round, it is achieved be irradiated to prepreg (2) uniformity of laser energy density.
- Wrapping formed laser curing the most as claimed in claim 1 prepares composite, it is characterized in that: core (1) uses non-time When turning, core (1) is motionless, it is possible to by mechanical hand manipulation laser follower (3), make laser beam (4) enter prepreg (2) Row uniform speed scanning, it is achieved be irradiated to the uniformity of the laser energy density of prepreg (2).
- Wrapping formed laser curing the most as claimed in claim 1 prepares composite, it is characterized in that: core (1) uses non-time When turning, it is possible in the case of core (1) at the uniform velocity turns round, laser follower (3) Variable power under being controlled by computer is swashed Light exports, it is achieved be irradiated to the uniformity of the laser energy density of prepreg (2).
- 11. Wrapping formed laser curings as claimed in claim 1 prepare composite, it is characterized in that: laser follower (3) energy Enough with galvanometer so that the sweep bandwidth (L) of outgoing laser beam (4) increases considerably, thus increases substantially working (machining) efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555826.3A CN106182521A (en) | 2016-07-14 | 2016-07-14 | Wrapping formed laser curing prepares composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555826.3A CN106182521A (en) | 2016-07-14 | 2016-07-14 | Wrapping formed laser curing prepares composite |
Publications (1)
| Publication Number | Publication Date |
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| CN106182521A true CN106182521A (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610555826.3A Pending CN106182521A (en) | 2016-07-14 | 2016-07-14 | Wrapping formed laser curing prepares composite |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059618A (en) * | 2017-02-28 | 2017-08-18 | 南京工业大学 | A kind of fiber reinforcement light or water cure prepreg are wrapped band |
| CN113149682A (en) * | 2021-04-29 | 2021-07-23 | 上海骐杰碳素材料有限公司 | Carbon or carbon ceramic composite material winding preform, product and preparation method thereof |
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| CN103753830A (en) * | 2014-01-24 | 2014-04-30 | 四川省新万兴碳纤维复合材料有限公司 | Forming process for annular carbon fiber composite material pull rod |
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| CN101497243A (en) * | 2009-03-19 | 2009-08-05 | 哈尔滨工业大学 | Method for producing carbon fiber composite mast |
| CN102152474A (en) * | 2010-11-12 | 2011-08-17 | 天津工业大学 | Control method of filament winding constant tension of no-gyrating bodycomposite material member |
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Application publication date: 20161207 |
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