CN105722265A - Method and apparatus for heating composite material by microwave in directional radiation manner - Google Patents
Method and apparatus for heating composite material by microwave in directional radiation manner Download PDFInfo
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- CN105722265A CN105722265A CN201610118272.0A CN201610118272A CN105722265A CN 105722265 A CN105722265 A CN 105722265A CN 201610118272 A CN201610118272 A CN 201610118272A CN 105722265 A CN105722265 A CN 105722265A
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- microwave
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- microwave antenna
- heating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/80—Apparatus for specific applications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/72—Radiators or antennas
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/72—Radiators or antennas
- H05B6/725—Rotatable antennas
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/04—Heating using microwaves
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- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a method and an apparatus for heating a composite material by microwave in a directional radiation manner. One or more directional microwave antennas with adjustable radiation directions, radiation areas and radiation power are adopted to heat and cure different regions of the composite material. The microwave emitted by the microwave antenna (7) is reflected by an ellipsoid reflective plate (6) to realize the directional radiation of the microwave; the microwave antenna (7) moves in a sliding mechanism (3) to adjust the position, close to the focus on the axial line of the ellipsoid reflective plate (6), of the microwave antenna so as to realize control of the radiation region areas; the radiation direction of the microwave is adjusted by rotating a universal waveguide (1); and the radiation power of the microwave on the composite material (8) is adjusted by adjusting the incident power of the port of the universal waveguide (1). By adoption of the method and the apparatus provided by the invention, the microwave curing and directional radiation for the composite material with continuous adjustable radiation areas, optionally-changed radiation directions and real-time adjustable radiation power can be realized.
Description
Technical field
The present invention relates to a kind of microwave heating technique, the technology of especially a kind of microwave orientation heating composite, the method for specifically a kind of microwave directed radiation heating composite and device.
Background technology
It is known that microwave heating curing technology is to penetrate composite with low-frequency electromagnetic wave, convert microwave energy to heat energy at material internal, composite is inside and outside carried out the technology of uniformly heating.This process has that speed is fast, energy consumption is low and the series of advantages such as thermal inertia is little, it is possible to quickly, efficiently, be uniformly heating and curing composite material parts.
In existing Composite Microwave solidification equipment, many employing magnetrons are as microwave generating apparatus, and the composite being placed on inside cavity, inside waveguide transmissions to heating cavity, is carried out dielectric heating by the microwave given off.But there is microwave power skewness in this microwave curing technology, power can not the problem such as directed adjustment, and mostly existing power control techniques is that the switch by magnetron regulates the overall microwave power of inside cavity, can not directed adjust for uneven microwave power, the requirement that heating object uniformly heats can not be met, also heating object cannot be carried out local and select heating.
Summary of the invention
The microwave power skewness that it is an object of the invention to exist for existing microwave heating equipment, power can not the directed problems adjusted and can not realize local heating, invent a kind of swept area continuously adjustabe, the method for radiation direction arbitrarily changes, radiant power regulates in real time microwave directed radiation heating composite, corresponding device is provided simultaneously.
One of technical scheme is:
A kind of method of microwave directed radiation heating composite, it is characterized in that being placed in the composite of solidification to be heated the bottom of one directed microwave antenna that can adjust radiation direction, swept area and radiant power in real time, in microwave curing process, realize uniformly being heating and curing of composite by adjusting radiation direction, swept area and radiant power in real time.
The microwave power of described directed microwave antenna radiation is variable, and the radiation direction of microwave antenna can be changed by rotary microwave antenna, and radiation areas area can pass through to adjust microwave antenna and realize in the position of ellipsoid reflecting plate near focal point.
Described directed microwave antenna can be corresponding with corresponding microwave frequency excitation cavity cooperating, be provided with multiple proper alignment in the main radiation direction of described excitation cavity, space between each other is the directed microwave antenna of microwave half-wavelength integral multiple, and each microwave antenna has independent microwave radiation source.
The two of technical scheme are:
A kind of device of Composite Microwave directed radiation heating, it is characterized in that it includes the ellipsoid microwave reflection plate 6 being arranged on the installed surface 4 within heating cavity, microwave antenna 7 is arranged on the long axis ray of ellipsoid microwave reflection plate 6 and position is adjustable, to realize the adjustment of microwave heating area, microwave antenna 7 is connected with universal waveguide 1 by antenna terminal 2, and universal waveguide 1 is connected with microwave source；Universal waveguide 1 can drive that microwave antenna 7 and ellipsoid microwave reflection plate 6 thereof make to synchronize on installed surface 4 each to freely rotatable to realize the microwave heating to zones of different.
Described ellipsoid reflecting plate 6 is connected to slide mechanism 3, and microwave antenna 7 can move freely under the drive of slide mechanism 3 on ellipsoid reflecting plate 6 axis.
The described microwave antenna 7 displacement on ellipsoid reflecting plate 6 major axis is 0.01-0.05 rice.
The power adjustable of described microwave source, it is arranged on the metallic cavity of closing interiorly or exteriorly, and described installed surface 4 is provided with the metal mantle 5 preventing microwave from leaking.
Beneficial effects of the present invention:
The Composite Microwave solidification directed radiation control method of the present invention and device achieve the microwave of microwave antenna transmitting and realize the directed radiation to microwave through ellipsoid baffle reflection, adjust the area of microwave antenna position control radiation areas on ellipsoid reflecting plate axis, rotating universal waveguide and adjust the direction of microwave radiation, the incident power regulating universal waveguide port controls the power of microwave radiation.Adopt Composite Microwave to solidify directed radiation control technology and be possible not only to carry out composite locally selecting heating, and directed can adjust uneven microwave power, it is achieved uniformly heating composite.
The Composite Microwave that the present invention proposes solidifies directed radiation control method and device, it is possible to achieve the Composite Microwave that swept area continuously adjustabe, radiation direction arbitrarily change, radiant power regulates in real time solidifies directed radiation.
The present invention is based on the ellipsoid reflection feature to microwave, realize the directed radiation control that Composite Microwave solidifies, compared to existing microwave curing and power control techniques thereof, directed radiation controls the advantage having swept area continuously adjustabe, radiation direction arbitrarily changes, radiant power regulates in real time.Adopt microwave curing directed radiation to control technology and be possible not only to carry out heating object locally selecting heating, and directed can adjust uneven microwave power, it is achieved uniform to composite heats.
Accompanying drawing explanation
The Composite Microwave that Fig. 1 is the present invention solidifies directed radiation control device schematic diagram
In figure: 1 be universal waveguide, 2 be antenna terminal, 3 be slide mechanism, 4 be installed surface, 5 be metal mantle, 6 be ellipsoid microwave reflection plate, 7 be microwave antenna, 8 for composite.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Embodiment one.
As shown in Figure 1.
A kind of method of microwave directed radiation heating composite, first the composite of solidification to be heated is placed in one and can adjust radiation direction in real time, the bottom of the directed radiation device (microwave antenna) as shown in Figure 1 of swept area and radiant power, this directed radiation device includes the ellipsoid microwave reflection plate 6 being arranged on the installed surface 4 within heating cavity, microwave antenna 7 is arranged on the long axis ray of ellipsoid microwave reflection plate 6 and position is adjustable, to realize the adjustment of microwave heating area, microwave antenna 7 is connected with universal waveguide 1 by antenna terminal 2, universal waveguide 1 is connected with microwave source；Universal waveguide 1 can drive that microwave antenna 7 and ellipsoid microwave reflection plate 6 thereof make to synchronize on installed surface 4 each to freely rotatable to realize the microwave heating to zones of different.Microwave curing process is passed through adjust radiation direction, swept area and radiant power (realizing by adjusting the transmitting power of microwave source) in real time and realizes uniformly being heating and curing of composite.The microwave power of described directed microwave antenna radiation is variable, and the radiation direction of microwave antenna can be changed by rotary microwave antenna, and radiation areas area can pass through to adjust microwave antenna and realize in the position of ellipsoid reflecting plate near focal point.Described directed microwave antenna can be corresponding with corresponding microwave frequency excitation cavity cooperating, be provided with multiple proper alignment in the main radiation direction of described excitation cavity, space between each other is the directed microwave antenna of microwave half-wavelength integral multiple, and each microwave antenna has independent microwave radiation source.In Composite Microwave solidification process, adopt the directed microwave antenna of 8 adjustable radiation directions, swept area and radiant power, the zones of different of the composite that is heating and curing.
The power of described directed microwave antenna radiation changes at 0 ~ 1.5kW, and the radiation direction of microwave antenna is changed by rotary microwave antenna, and the maximum angle between microwave antenna and installed surface normal is 70 °.Microwave antenna can before and after ellipsoid reflecting plate focus 0.03m(also can select displacement within the scope of 0.01-0.05) mobile in scope.
Described directed microwave antenna be operated in 2.45GHz and with 2.45GHz octagon resonant cavity cooperating.In cavity, upper and lower surface is respectively provided with the directed microwave antenna of 4 proper alignment, and space between each other is 1 times of wavelength (0.122m).
Embodiment two.
A kind of device of Composite Microwave directed radiation heating, it includes the ellipsoid microwave reflection plate 6 being arranged on the installed surface 4 within heating cavity, microwave antenna 7 is arranged on the long axis ray of ellipsoid microwave reflection plate 6 and position is adjustable, to realize the adjustment of microwave heating area, microwave antenna 7 is connected with universal waveguide 1 by antenna terminal 2, and universal waveguide 1 is connected with microwave source；Universal waveguide 1 can drive that microwave antenna 7 and ellipsoid microwave reflection plate 6 thereof make to synchronize on installed surface 4 each to freely rotatable to realize the microwave heating to zones of different.Described ellipsoid reflecting plate 6 is connected to slide mechanism 3, microwave antenna 7 can adopt manually or electrically mechanism to realize the movement of microwave antenna 7 at slide mechanism 3(, and motor drive mechanism can adopt feed screw nut or worm-and-wheel gear to realize) drive under on ellipsoid reflecting plate 6 axis, move freely (displacement is 0.01-0.05 rice).The power adjustable of described microwave source, it is arranged on the metallic cavity of closing interiorly or exteriorly, and described installed surface 4 is provided with the metal mantle 5 preventing microwave from leaking.The opening diameter of ellipsoid reflecting plate 6 is 0.15m.Maximum angle between microwave antenna and installed surface normal is 70 °.Whole device is arranged on the installed surface 4 within heating cavity, and the diameter of installing hole is 0.1m, adopts aluminum film (i.e. metal mantle 5) to seal.The radiant power of this directed radiation heater can continuously or discontinuously change；The radiation heating of different directions can be realized by spin orientation microwave antenna；The big I of swept area is by changing the microwave antenna 7 position adjustment at ellipsoid reflecting plate 6 near focal point；Described directed microwave antenna is connected to universal waveguide 1 through microwave junction 2, and microwave antenna 7 can move freely its position on ellipsoid reflecting plate 6 central axis of adjustment in slide mechanism 3.
Part that the present invention does not relate to is all same as the prior art maybe can adopt prior art to be realized.
Claims (7)
1. the method for a microwave directed radiation heating composite, it is characterised in that in Composite Microwave solidification process, adopting one or more directed microwave antenna that can adjust radiation direction, swept area and radiant power in real time, be heating and curing composite.
2. method according to claim 1, it is characterized in that the microwave power of described directed microwave antenna radiation is variable, the radiation direction of microwave antenna can be changed by rotary microwave antenna, and radiation areas area can pass through to adjust microwave antenna and realize in the position of ellipsoid reflecting plate near focal point.
3. method according to claim 1, it is characterized in that the excitation cavity cooperating that described directed microwave antenna can be corresponding with corresponding microwave frequency, be provided with multiple proper alignment in the main radiation direction of described excitation cavity, space between each other is the directed microwave antenna of microwave half-wavelength integral multiple, and each microwave antenna has independent microwave radiation source.
4. the device of a Composite Microwave directed radiation heating, it is characterized in that it includes ellipsoid microwave reflection plate (6) being arranged on the installed surface (4) within heating cavity, microwave antenna (7) is arranged on the long axis ray of ellipsoid microwave reflection plate (6) and position is adjustable, to realize the adjustment of microwave heating area, microwave antenna (7) is connected with universal waveguide (1) by antenna terminal (2), and universal waveguide (1) is connected with microwave source；Universal waveguide (1) and microwave antenna (7) and ellipsoid microwave reflection plate (6) thereof installed surface (4) upper make synchronize each to freely rotatable to realize the microwave heating to zones of different.
5. device according to claim 4, is characterized in that described ellipsoid reflecting plate (6) is connected to slide mechanism (3), and microwave antenna (7) can move freely under the drive of slide mechanism (3) on ellipsoid reflecting plate (6) axis.
6. the device according to claim 4 or 5, is characterized in that the described microwave antenna (7) displacement on ellipsoid reflecting plate (6) major axis is 1-50 centimetre.
7. device according to claim 4, is characterized in that the power adjustable of described microwave source, and it is arranged on the metallic cavity of closing interiorly or exteriorly, and described installed surface (4) is provided with the metal mantle (5) preventing microwave from leaking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610118272.0A CN105722265B (en) | 2016-03-03 | 2016-03-03 | The method and device of microwave directed radiation heating composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610118272.0A CN105722265B (en) | 2016-03-03 | 2016-03-03 | The method and device of microwave directed radiation heating composite material |
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| CN105722265A true CN105722265A (en) | 2016-06-29 |
| CN105722265B CN105722265B (en) | 2019-03-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780585A (en) * | 2019-03-01 | 2019-05-21 | 北京石油化工学院 | A kind of microwave radiation control system |
| CN112476887A (en) * | 2019-09-11 | 2021-03-12 | 江苏麦克威微波技术有限公司 | Carbon fiber composite material curing device |
| CN116653396A (en) * | 2023-02-20 | 2023-08-29 | 四川大学 | Flexible composite material and in-situ curing system and curing method thereof |
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| CN2803297Y (en) * | 2005-06-24 | 2006-08-09 | 湖南大学 | Device for increasing electromagnetic wave heating efficiency |
| CN202813487U (en) * | 2012-08-16 | 2013-03-20 | 广东美的微波电器制造有限公司 | Microwave oven |
| CN103802339A (en) * | 2013-08-26 | 2014-05-21 | 南京航空航天大学 | Composite material component rapid repairation device and method based on microwaves |
| JP2014133922A (en) * | 2013-01-10 | 2014-07-24 | Nippon Steel & Sumitomo Metal | Profile measurement apparatus for blast furnace charging material |
| CN104634816A (en) * | 2015-02-14 | 2015-05-20 | 南京航空航天大学 | Microwave thermal excitation system used for detecting or repairing damages of composite material and thermal excitation method of microwave thermal excitation system |
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2016
- 2016-03-03 CN CN201610118272.0A patent/CN105722265B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2803297Y (en) * | 2005-06-24 | 2006-08-09 | 湖南大学 | Device for increasing electromagnetic wave heating efficiency |
| CN202813487U (en) * | 2012-08-16 | 2013-03-20 | 广东美的微波电器制造有限公司 | Microwave oven |
| JP2014133922A (en) * | 2013-01-10 | 2014-07-24 | Nippon Steel & Sumitomo Metal | Profile measurement apparatus for blast furnace charging material |
| CN103802339A (en) * | 2013-08-26 | 2014-05-21 | 南京航空航天大学 | Composite material component rapid repairation device and method based on microwaves |
| CN104634816A (en) * | 2015-02-14 | 2015-05-20 | 南京航空航天大学 | Microwave thermal excitation system used for detecting or repairing damages of composite material and thermal excitation method of microwave thermal excitation system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780585A (en) * | 2019-03-01 | 2019-05-21 | 北京石油化工学院 | A kind of microwave radiation control system |
| CN109780585B (en) * | 2019-03-01 | 2024-03-01 | 北京石油化工学院 | Microwave distribution control system |
| CN112476887A (en) * | 2019-09-11 | 2021-03-12 | 江苏麦克威微波技术有限公司 | Carbon fiber composite material curing device |
| CN112476887B (en) * | 2019-09-11 | 2022-06-14 | 江苏麦克威微波技术有限公司 | Carbon fiber composite material curing device |
| CN116653396A (en) * | 2023-02-20 | 2023-08-29 | 四川大学 | Flexible composite material and in-situ curing system and curing method thereof |
| CN116653396B (en) * | 2023-02-20 | 2024-02-20 | 四川大学 | Flexible composite material and in-situ curing system and curing method thereof |
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| CN105722265B (en) | 2019-03-01 |
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