CN103920809B - Microwave energy is utilized uniformly to heat the device producing arc part - Google Patents

Microwave energy is utilized uniformly to heat the device producing arc part Download PDF

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Publication number
CN103920809B
CN103920809B CN201410150969.7A CN201410150969A CN103920809B CN 103920809 B CN103920809 B CN 103920809B CN 201410150969 A CN201410150969 A CN 201410150969A CN 103920809 B CN103920809 B CN 103920809B
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China
Prior art keywords
waveguide
mould
arc
bracing frame
microwave
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Expired - Fee Related
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CN201410150969.7A
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Chinese (zh)
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CN103920809A (en
Inventor
李耶斯·豆阿吉
杜维唯
史文
约翰·桑姆斯凯尔斯
克劳德·芭缇阿斯
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Chongqing Academy Of Science and Technology
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Chongqing Academy Of Science and Technology
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Abstract

The invention discloses a kind of device utilizing microwave energy uniformly to heat production arc part, including waveguide, waveguide is arcuate groove, its cross section is rectangle, a width of 25cm of this waveguide, a height of 12cm, it is respectively equipped with on top board in waveguide and base plate, lower bracing frame, on, lower bracing frame is also the arc block identical with the bending direction of waveguide, on and, lower bracing frame is less than the thickness near waveguide microwave exit near the thickness of waveguide microwave import department, upper, camber intracavity between lower bracing frame is provided with mould, mould is also the arc block identical with waveguide bend direction, the to be processed material die cavity identical with waveguide bend radian it is provided with in mould, arc guided wave block it is respectively equipped with in the both ends of the surface of mould.The present invention can effectively solve the problem of conventional apparatus microwave energy decay, and this device is also adaptable for the preparation of arc part simultaneously.

Description

Microwave energy is utilized uniformly to heat the device producing arc part
Technical field
The present invention relates in a kind of microwave manufacturing process, the dress uniformly heated with microwave material to be processed to arc Put.
Background technology
The Chinese patent of Application No. 201220349243.2, discloses one and utilizes microwave energy uniformly to heat Device, including waveguide (1) and mould (4), top board in waveguide (1) and base plate are fixed respectively Upper and lower bracing frame (2,3), the arranged on left and right sides plate of described mould (4) is respectively equipped with Rhizoma Sparganii cylindricality Guided wave block (4a), described mould (4) middle part is provided with the placed cavity (4b) of material to be processed, described upper and lower Bracing frame (2,3) is wedge, forms a wedge type chamber between described upper and lower bracing frame (2,3), Described mould (4) is the wedge identical with this wedge type chamber size, and described mould (4) is installed on upper and lower Wedge type intracavity between bracing frame (2,3).By equal to two bracing frames and mould support wedge shape, so, micro- Ripple enters from thicker one end of mould, and the entrance being equivalent to microwave broadens, narrow egress, although microwave energy Amount can decay because of the absorption of material to be processed, but owing to mould becomes narrow gradually, microwave energy is at mould Middle gathered together, so can be reduced the decay of microwave energy, it might even be possible to make microwave energy Increase, improve the utilization ratio of microwave so that the material physical properties processed is uniform.
But said apparatus only can be suitably used for the material that material to be processed is rectangle.When material to be processed becomes Arc material, such as automobile damping spring steel, by devices above, cannot ensure thermally equivalent, because micro- The propagating characteristic of wave energy is that energy placed in the middle is maximum, gradually successively decreases to both sides, and therefore, arc part is at this Device can not get heat uniformly.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides one to utilize microwave energy uniformly to heat production arc The device of parts, during with this device heating arc part, the temperature everywhere of arc part is basically identical, raw The material physical properties that output is come is uniform.
To achieve these goals, technical scheme is as follows: one utilizes microwave energy uniformly to heat Produce the device of arc part, including waveguide (1), it is characterised in that: described waveguide (1) is arcuate groove, Its cross section is rectangle, and the long a of this waveguide (1) is 12cm, and wide b is 25cm, in described waveguide (1) Top board and base plate on be respectively equipped with upper and lower bracing frame (2,3), described upper and lower bracing frame (2,3) is equal For the arc block identical with the crooked radian of waveguide (1), and described upper and lower bracing frame (2,3) is close Waveguide (1), the thickness at microwave input port is less than the thickness near waveguide (1) microwave exit, upper and lower Camber intracavity between bracing frame (2,3) is provided with mould (4), and described mould (4) is also and waveguide (1) The arc block that bending direction is identical, is provided with in described mould (4) and identical the treating of waveguide (1) crooked radian Rapidoprint die cavity (4b), the both ends of the surface of described mould (4) are respectively equipped with arc guided wave block (4a), institute State the cross section of arc guided wave block (4a) be two of which limit be the triangle of arc-shaped side.
In technique scheme: the frequency of described microwave is 915MHz.
Using technique scheme, by waveguide design camber, and the long a of waveguide is 12cm, and wide b is 25cm.Can guarantee that the microwave of this frequency enters in waveguide, the design of waveguide assembly radian, beneficially microwave are not Disconnected reflexing to, in mould, is not the most dissipated.Equally, arranging bracing frame, bracing frame is also arc frame, And the thickness of the import department of bracing frame is narrower, say, that mould thickness in this place is big, the import of microwave Width is big, and exit width is little, although microwave energy can be decayed because of the absorption of material to be processed, but by Becoming narrow gradually in mould, microwave energy is gathered together in a mold, so can reduce microwave energy Decay, it might even be possible to microwave energy be increased, improve the utilization ratio of microwave, through measuring, should Device is when heating arc part, and the temperature of the initiating terminal of this arc part, middle part and tail end is basically identical, Make the material physical properties processed uniform.
As preferably: described mould (4) is made up of silica glass, described upper and lower bracing frame (2,3) by Cellular polyethylene is made.The material of mould has stronger absorption microwave ability.
As preferably: the thickness of the thicker end of described mould (4) is 7-11 times of the height of die cavity (4b), The thickness of described mould (4) relatively thin end is 1-3 times of die cavity (4b) height.So so that microwave energy The attenuation rate of amount is reduced to minimum, and the attenuation rate of microwave energy even can be made to become negative value.
Beneficial effect: the present invention is reasonable in design, simple in construction, low cost of manufacture, can effectively solve tradition dress The problem putting microwave energy decay, this device is also adaptable for the preparation of arc part simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Embodiment 1, as Figure 1-Figure 2, the microwave energy that utilizes of the present invention uniformly heats production curved portions The device of part is made up of parts such as waveguide 1, upper and lower bracing frame 2,3 and moulds 4.
Described waveguide 1 is arcuate groove, and its cross section is rectangle, and the long a of this waveguide 1 is 12cm, and wide b is 25cm, the frequency that frequency is described microwave of the microwave being suitable for this device is 915MHz.The microwave energy of this frequency Enter in this waveguide 1.It is respectively equipped with upper and lower bracing frame 2,3 on top board in described waveguide 1 and base plate, Described upper and lower bracing frame 2,3 is also the arc block identical with the bending direction of waveguide 1, and described upper, The lower bracing frame 2,3 thickness at waveguide 1 microwave input port is less than the thickness near waveguide 1 microwave exit, Camber intracavity between upper and lower bracing frame 2,3 is provided with mould 4, and described mould 4 is also and waveguide 1 Arc block that bending direction is identical (mould 4 is made up of upper die and lower die, after upper die and lower die matched moulds overall in Arc), it is provided with the to be processed material die cavity 4b identical with waveguide 1 crooked radian, mould 4 in described mould 4 Relatively big near the thickness of the microwave input port end of waveguide 1, one end thickness near waveguide 1 microwave exit is little. 7-11 times of the height that thickness is die cavity 4b of the thicker end of described mould 4, the described relatively thin end of mould 4 Thickness is 1-3 times of die cavity 4b height.Arc guided wave block 4a it is respectively equipped with in the both ends of the surface of described mould 4, This arc guided wave block 4a is shaped like in Rhizoma Sparganii cylindricality, and the cross section of described arc guided wave block 4a is wherein Article two, the triangle of limit arc-shaped side, these two arc-shaped sides be not with the limit of the end contact of mould 4.

Claims (2)

1. utilizing microwave energy uniformly to heat the device producing arc part, including waveguide (1), it is special Levying and be: described waveguide (1) is arcuate groove, its cross section is rectangle, and the long a of this waveguide (1) is 12cm, Wide b is 25cm, and top board in described waveguide (1) and base plate are respectively equipped with upper and lower bracing frame (2,3), Described upper and lower bracing frame (2,3) is the arc block identical with the crooked radian of waveguide (1), and institute State the upper and lower bracing frame (2,3) thickness at waveguide (1) microwave input port less than near waveguide (1) The thickness in microwave exit, the camber intracavity between upper and lower bracing frame (2,3) is provided with mould (4), Described mould (4) is also the arc block identical with waveguide (1) bending direction, and described mould is provided with in (4) The to be processed material die cavity (4b) identical with waveguide (1) crooked radian, in the both ends of the surface of described mould (4) Be respectively equipped with arc guided wave block (4a), the cross section of described arc guided wave block (4a) be two of which limit be arc The triangle on shape limit, the thickness of the thicker end of described mould (4) is 7-11 times of die cavity (4b) height, The thickness of described mould (4) relatively thin end is 1-3 times of die cavity (4b) height, and the frequency of described microwave is 915MHz.
The most according to claim 1, utilize microwave energy uniformly to heat the device producing arc part, it is special Levying and be: described mould (4) is made up of silica glass, described upper and lower bracing frame (2,3) is by cellular Polyethylene make.
CN201410150969.7A 2014-04-15 2014-04-15 Microwave energy is utilized uniformly to heat the device producing arc part Expired - Fee Related CN103920809B (en)

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CN103920809B true CN103920809B (en) 2016-12-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843204A (en) * 1988-01-11 1989-06-27 Sharp Kabushiki Kaisha Microwave oven cavity housing
JPH05240449A (en) * 1992-02-26 1993-09-17 Toshiba Corp Punching metal
JP3185983B2 (en) * 1989-12-06 2001-07-11 ザ・シイー・エイ・ロートン・カンパニー Method and apparatus for producing a preform
CN102308668A (en) * 2009-02-09 2012-01-04 株式会社佐竹 Microwave heating device
CN202841583U (en) * 2012-07-18 2013-03-27 重庆市科学技术研究院 Device for even heating with microwave energy
CN103465421A (en) * 2013-09-02 2013-12-25 重庆市科学技术研究院 Epoxy resin forming method for uniformly heating by microwave energy to reduce bubbles
CN203972625U (en) * 2014-04-15 2014-12-03 重庆市科学技术研究院 Utilize microwave energy evenly to heat the device of producing arc part

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843204A (en) * 1988-01-11 1989-06-27 Sharp Kabushiki Kaisha Microwave oven cavity housing
JP3185983B2 (en) * 1989-12-06 2001-07-11 ザ・シイー・エイ・ロートン・カンパニー Method and apparatus for producing a preform
JPH05240449A (en) * 1992-02-26 1993-09-17 Toshiba Corp Punching metal
CN102308668A (en) * 2009-02-09 2012-01-04 株式会社佐竹 Microwave heating device
CN202841583U (en) * 2012-07-18 2013-03-27 重庆市科学技术研究院 Device for even heating with microwave energy
CN103465421A (en) * 2013-09-02 2013-12-25 重庆市科学技术研究院 Epoxy resin forming method for uniformly heating by microwave energy to reduce bubbles
CN203972625U (en) * 2014-04-15 2014-12-03 重庆市科学技术研究院 Utilize microwave energy evenly to heat the device of producing arc part

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Granted publication date: 20161207

Termination date: 20170415