CN114986085A - Twisted waveguide processing method - Google Patents
Twisted waveguide processing method Download PDFInfo
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- CN114986085A CN114986085A CN202210426042.6A CN202210426042A CN114986085A CN 114986085 A CN114986085 A CN 114986085A CN 202210426042 A CN202210426042 A CN 202210426042A CN 114986085 A CN114986085 A CN 114986085A
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- 238000003672 processing method Methods 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 13
- 230000003647 oxidation Effects 0.000 claims abstract description 12
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000003754 machining Methods 0.000 claims abstract description 8
- 230000007797 corrosion Effects 0.000 claims abstract description 6
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 238000003801 milling Methods 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 16
- 238000013461 design Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/02—Bends; Corners; Twists
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Waveguides (AREA)
Abstract
The invention relates to the field of microwave devices, in particular to a twisted waveguide processing method. The method for processing the twisted waveguide comprises the steps of firstly, completing the machining of a flange, a side plate and an upper plate and a lower plate; then twisting and forming the side plates and the upper and lower plates respectively; then the side plate is assembled with the upper plate and the lower plate and welded to be formed, and then the first flange and the second flange are welded to form the twisted waveguide; then, carrying out numerical control finish milling on the appearance of the twisted waveguide and the flange; and finally, conducting oxidation treatment is carried out on the twisted waveguide, so that the corrosion resistance of the twisted waveguide is enhanced. After the processing, the large-caliber twisted waveguide can be processed, the deformation is avoided, the method is simple, the processing difficulty is reduced, and the performance of the large-caliber twisted waveguide can be ensured.
Description
Technical Field
The invention relates to the field of microwave devices, in particular to a twisted waveguide processing method.
Background
In a waveguide system generally used in the fields of navigation measurement and control, satellite communication and the like, a polarization plane transmitted by an electric field needs to be rotated by a certain angle, and a twisted waveguide is widely applied to microwave and millimeter wave connection waveguides, so that the structure and the performance of the twisted waveguide are guaranteed to be good, and the twisted waveguide is particularly important for the microwave and millimeter wave systems.
The twisted waveguide is characterized in that the polarization direction of electromagnetic waves passing through the twisted waveguide is changed by 90 degrees, and the propagation direction is unchanged. In order to obtain the twisted waveguide, the most common processing mode directly twists a section of straight waveguide to a required angle by a mechanical means, and the mode has the defects that the processing is difficult when the length is larger, the deformed deformation is generated when the waveguide is difficult to control and stress is difficult to control, the working performance of the twisted waveguide is difficult to ensure, and the influence on the reliability of a microwave and millimeter wave system is large.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the twisted waveguide processing method which is simple, reduces the processing difficulty and ensures the large-caliber twisted waveguide performance.
The invention is realized by the following technical scheme: the twisted waveguide processing method comprises the following steps:
a. machining a first flange, a second flange, two side plates and two upper and lower plates according to the design requirement of the twisted waveguide;
b. respectively twisting and molding the two side plates and the two upper and lower plates;
c. assembling the twisted side plate and the upper and lower plates together, welding the side plate and the upper and lower plates to form a twisted waveguide, and welding the first flange and the second flange to form a twisted waveguide;
d. carrying out numerical control finish milling on the appearance of the twisted waveguide, the first flange and the second flange, and removing allowance;
e. the twisted waveguide is subjected to conductive oxidation treatment, so that the corrosion resistance of the twisted waveguide is enhanced.
In order to better implement the invention, in the step a, after the first flange, the second flange, the two side plates and the two upper and lower plates are machined, deburring treatment is respectively carried out.
In step c, when the twisted waveguide is assembled, the side plates, the upper plate and the lower plate are fixed by spot welding, then the twisted waveguide cavity is formed by flame welding, and after the redundant welding flux is removed, the twisted waveguide is welded with the first flange and the second flange.
In order to better implement the present invention, in the step d, after the allowance is removed, the drilling is mechanically processed and the first flange and the second flange are reamed.
In order to better realize the invention, in the step e, during the conductive oxidation treatment, the twisted waveguide is immersed into 0.5 to 0.7 percent of CrO 3 、0.05%~0.1%K 3 Fe(CN) 6 And 0.1% >, EEtching was performed in a mixed solution of 0.15% NaF.
In order to better implement the invention, in the step e, after conducting conductive oxidation treatment on the twisted waveguide, flowing water washing and drying are carried out.
In order to better realize the invention, a first connecting flanging and a second connecting flanging are respectively arranged at two ends of the upper plate and the lower plate, and a third connecting flanging and a fourth connecting flanging are respectively arranged at two ends of the side plate; the first connecting flange and the third connecting flange are connected with the first flange, and the second connecting flange and the fourth connecting flange are connected with the second flange.
In order to better realize the invention, steps matched with the side plates are arranged on two sides of the upper plate and the lower plate.
Compared with the prior art, the invention at least has the following advantages and beneficial effects: the method for processing the twisted waveguide comprises the steps of firstly, completing the machining of a first flange, a second flange, a side plate and an upper plate and a lower plate; then twisting and forming the side plates and the upper and lower plates respectively; then the side plate is assembled with the upper plate and the lower plate and welded to be formed, and then the first flange and the second flange are welded to form the twisted waveguide; then carrying out numerical control finish milling on the appearance of the twisted waveguide, the first flange and the second flange; and finally, conducting oxidation treatment is carried out on the twisted waveguide, so that the corrosion resistance of the twisted waveguide is enhanced. After the processing, the large-caliber twisted waveguide can be processed, the deformation is avoided, the method is simple, the processing difficulty is reduced, and the performance of the large-caliber twisted waveguide can be ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of one configuration of a twisted waveguide in accordance with the method of the present invention;
FIG. 2 is a schematic left side view of FIG. 1;
FIG. 3 is a schematic right-side view of FIG. 1;
FIG. 4 is a schematic view of a side plate of the twisted waveguide processing method of the present invention;
FIG. 5 is a schematic diagram of one configuration of upper and lower plates for the twisted waveguide fabrication method of the present invention;
FIG. 6 is a schematic view of the configuration of the twisted waveguide processing method of the present invention with the upper and lower plates untwisted;
FIG. 7 is a schematic left side view of FIG. 6;
FIG. 8 is a schematic view of a twisted waveguide manufacturing process with the side plates untwisted;
in the figure, 1-upper and lower plates, 2-side plates, 3-first flange, 4-second flange, 5-step, 6-first connecting flange, 7-second connecting flange, 8-third connecting flange and 9-fourth connecting flange.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It should be understood that, for the term "and/or" as may appear herein, it is merely an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists independently, B exists independently, and A and B exist simultaneously; for the term "/and" as may appear herein, which describes another associative object relationship, it means that two relationships may exist, e.g., a/and B, may mean: a exists independently, and A and B exist independently; in addition, for the character "/" that may appear herein, it generally means that the former and latter associated objects are in an "or" relationship.
It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may not be shown in unnecessary detail to avoid obscuring the examples.
As shown in fig. 1 to 8, the twisted waveguide processing method of the present invention includes the following steps:
a. machining a first flange 3, a second flange 4, two side plates 2 and two upper and lower plates 1 according to the design requirement of the twisted waveguide;
b. respectively twisting and molding the two side plates 2 and the two upper and lower plates 1;
c. assembling the side plate 2 and the upper and lower plates 1 which are formed by twisting together, welding and forming, and welding a first flange 3 and a second flange 4 to form a twisted waveguide;
d. carrying out numerical control finish milling on the appearance of the twisted waveguide, the first flange 3 and the second flange 4, and removing allowance;
e. the twisted waveguide is subjected to conductive oxidation treatment, so that the corrosion resistance of the twisted waveguide is enhanced.
The method for processing the twisted waveguide comprises the steps of firstly, finishing machining of a first flange 3, a second flange 4, a side plate 2 and an upper plate and a lower plate 1; then twisting and forming the side plate 2 and the upper and lower plates 1 respectively; then assembling the side plate 2 and the upper and lower plates 1 together, welding for molding, and then welding the first flange 3 and the second flange 4 to form a twisted waveguide; then, carrying out numerical control finish milling on the appearance of the twisted waveguide, the first flange 3 and the second flange 4; and finally, conducting oxidation treatment is carried out on the twisted waveguide, so that the corrosion resistance of the twisted waveguide is enhanced. After the processing, the large-caliber twisted waveguide can be processed, the deformation is avoided, the method is simple, the processing difficulty is reduced, and the performance of the large-caliber twisted waveguide can be ensured.
Preferably, in the step a, after the first flange 3, the second flange 4, the two side plates 2 and the two upper and lower plates 1 are machined, deburring is respectively performed, so that after the deburring, the conductivity of the twisted waveguide can be improved.
Preferably, in the step c, when the twisted waveguide is assembled, the side plate 2 and the upper and lower plates 1 are fixed by spot welding, then the twisted waveguide cavity is formed by flame welding, and after the excess solder is removed, the twisted waveguide cavity is welded with the first flange 3 and the second flange 4, so that the conduction performance of the twisted waveguide can be further improved. In the step d, after the allowance is removed, machining and drilling are carried out, and reaming is carried out on the first flange 3 and the second flange 4.
Preferably, in the step e, during the conductive oxidation treatment, the twisted waveguide is immersed into 0.5-0.7% of CrO 3 、0.05%~0.1%K 3 Fe(CN) 6 Etching in the mixed solution of 0.1-0.15% NaF to form oxide layer on the twisted waveguide and raise the anticorrosive capacity of the twisted waveguide. Preferably, in the step e, after the twisted waveguide is subjected to conductive oxidation treatment, rinsing with running water and drying are performed, so as to ensure that the twisted waveguide is clean.
Preferably, a first connecting flange 6 and a second connecting flange 7 are respectively arranged at two ends of the upper plate 1 and the lower plate 1, and a third connecting flange 8 and a fourth connecting flange 9 are respectively arranged at two ends of the side plate 2; the first connecting flange 6 and the third connecting flange 8 are connected with the first flange 3, and the second connecting flange 7 and the fourth connecting flange 9 are connected with the second flange 4, so that after the design, when the twisted waveguide is assembled, solder can be prevented from entering a cavity, and the conductivity of the twisted waveguide is ensured. Furthermore, steps 5 matched with the side plates 2 are arranged on two sides of the upper plate 1 and the lower plate 1, so that solder can be prevented from entering the cavity, and the conduction performance of the twisted waveguide is ensured.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: modifications may be made to the embodiments described above, or equivalents may be substituted for some of the features described. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The method for processing the twisted waveguide is characterized by comprising the following steps of:
a. machining a first flange (3), a second flange (4), two side plates (2) and two upper and lower plates (1) according to the design requirement of the twisted waveguide;
b. respectively twisting and molding the two side plates (2) and the two upper and lower plates (1);
c. assembling the side plates (2) formed by twisting with the upper plate (1) and the lower plate (1), welding and forming, and welding the first flange (3) and the second flange (4) to form a twisted waveguide;
d. carrying out numerical control finish milling on the appearance of the twisted waveguide, the first flange (3) and the second flange (4) to remove allowance;
e. the twisted waveguide is subjected to conductive oxidation treatment, so that the corrosion resistance of the twisted waveguide is enhanced.
2. The twisted waveguide processing method of claim 1, wherein: in the step a, after the first flange (3), the second flange (4), the two side plates (2) and the two upper and lower plates (1) are machined, deburring treatment is respectively carried out.
3. The twisted waveguide processing method of claim 2, wherein: and in the step c, when the twisted waveguide is assembled, the side plate (2) and the upper and lower plates (1) are fixed in a spot welding mode, then the twisted waveguide cavity is formed in a flame welding mode, and after redundant welding flux is removed, the twisted waveguide cavity is welded with the first flange (3) and the second flange (4).
4. The twisted waveguide processing method of claim 3, wherein: and d, machining and drilling holes and reaming the first flange (3) and the second flange (4) after the allowance is removed.
5. The twisted waveguide processing method of claim 4, wherein: saidIn step e, during the conductive oxidation treatment, the twisted waveguide is immersed into the CrO with the concentration of 0.5-0.7% 3 、0.05%~0.1%K 3 Fe(CN) 6 And 0.1 to 0.15 percent of NaF for etching.
6. The twisted waveguide processing method of claim 5, wherein: in the step e, after conducting conductive oxidation treatment on the twisted waveguide, washing with running water and drying.
7. The twisted waveguide processing method of claim 1, wherein: a first connecting flanging (6) and a second connecting flanging (7) are respectively arranged at two ends of the upper plate (1) and the lower plate (1), and a third connecting flanging (8) and a fourth connecting flanging (9) are respectively arranged at two ends of the side plate (2); the first connecting flange (6) and the third connecting flange (8) are connected with the first flange (3), and the second connecting flange (7) and the fourth connecting flange (9) are connected with the second flange (4).
8. The twisted waveguide processing method of claim 7, wherein: steps (5) matched with the side plates (2) are arranged on two sides of the upper plate (1) and the lower plate (1).
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CN202210426042.6A CN114986085B (en) | 2022-04-22 | 2022-04-22 | Twisted waveguide processing method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115383411A (en) * | 2022-09-21 | 2022-11-25 | 西安艾力特电子实业有限公司 | Method for machining bent waveguide tube and bent waveguide tube structure |
CN118523059A (en) * | 2024-06-24 | 2024-08-20 | 南京驰韵科技发展有限公司 | Processing method of Ka-band space S-bend data transmission waveguide |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030030503A1 (en) * | 2001-08-07 | 2003-02-13 | Andrew Corporation | Method of and apparatus for connecting waveguides |
CA2644814A1 (en) * | 2008-11-26 | 2010-05-26 | Nick Vouloumanos | A multi-component waveguide assembly |
CN103972628A (en) * | 2014-04-24 | 2014-08-06 | 成都锦江电子系统工程有限公司 | Self-positioning stepped twisted waveguide and vacuum brazing process thereof |
CN104393393A (en) * | 2014-11-24 | 2015-03-04 | 成都锦江电子系统工程有限公司 | Processing technique for orthogonal mode power combiner |
CN105633516A (en) * | 2016-02-23 | 2016-06-01 | 陕西天翌天线有限公司 | Conversion device for waveguide polarization direction |
US20170069946A1 (en) * | 2010-09-30 | 2017-03-09 | Aviat U.S., Inc. | Systems and methods of waveguide assembly using longitudinal features |
CN108123195A (en) * | 2016-11-29 | 2018-06-05 | 天迈科技股份有限公司 | The manufacturing method and its structure of combined type waveguide |
CN109332453A (en) * | 2018-10-30 | 2019-02-15 | 南京吉凯微波技术有限公司 | A kind of unilateral twisting formation equipment of rectangle waveguide twist |
CN215342899U (en) * | 2021-06-09 | 2021-12-28 | 广州市吉峰金属塑胶制品有限公司 | Twisted waveguide forming device |
CN114055098A (en) * | 2021-12-10 | 2022-02-18 | 中国科学院合肥物质科学研究院 | Processing method of bent oblique solenoid CCT framework by caulking groove brazing matching method |
-
2022
- 2022-04-22 CN CN202210426042.6A patent/CN114986085B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030030503A1 (en) * | 2001-08-07 | 2003-02-13 | Andrew Corporation | Method of and apparatus for connecting waveguides |
CA2644814A1 (en) * | 2008-11-26 | 2010-05-26 | Nick Vouloumanos | A multi-component waveguide assembly |
US20170069946A1 (en) * | 2010-09-30 | 2017-03-09 | Aviat U.S., Inc. | Systems and methods of waveguide assembly using longitudinal features |
CN103972628A (en) * | 2014-04-24 | 2014-08-06 | 成都锦江电子系统工程有限公司 | Self-positioning stepped twisted waveguide and vacuum brazing process thereof |
CN104393393A (en) * | 2014-11-24 | 2015-03-04 | 成都锦江电子系统工程有限公司 | Processing technique for orthogonal mode power combiner |
CN105633516A (en) * | 2016-02-23 | 2016-06-01 | 陕西天翌天线有限公司 | Conversion device for waveguide polarization direction |
CN108123195A (en) * | 2016-11-29 | 2018-06-05 | 天迈科技股份有限公司 | The manufacturing method and its structure of combined type waveguide |
CN109332453A (en) * | 2018-10-30 | 2019-02-15 | 南京吉凯微波技术有限公司 | A kind of unilateral twisting formation equipment of rectangle waveguide twist |
CN215342899U (en) * | 2021-06-09 | 2021-12-28 | 广州市吉峰金属塑胶制品有限公司 | Twisted waveguide forming device |
CN114055098A (en) * | 2021-12-10 | 2022-02-18 | 中国科学院合肥物质科学研究院 | Processing method of bent oblique solenoid CCT framework by caulking groove brazing matching method |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115383411A (en) * | 2022-09-21 | 2022-11-25 | 西安艾力特电子实业有限公司 | Method for machining bent waveguide tube and bent waveguide tube structure |
CN115383411B (en) * | 2022-09-21 | 2024-04-30 | 西安艾力特电子实业有限公司 | Method for processing bent waveguide tube and bent waveguide tube structure |
CN118523059A (en) * | 2024-06-24 | 2024-08-20 | 南京驰韵科技发展有限公司 | Processing method of Ka-band space S-bend data transmission waveguide |
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