CN106158561B - A kind of helix and preparation method applied to traveling wave tube slow-wave system - Google Patents
A kind of helix and preparation method applied to traveling wave tube slow-wave system Download PDFInfo
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- CN106158561B CN106158561B CN201610538547.6A CN201610538547A CN106158561B CN 106158561 B CN106158561 B CN 106158561B CN 201610538547 A CN201610538547 A CN 201610538547A CN 106158561 B CN106158561 B CN 106158561B
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- spiral
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/24—Slow-wave structures, e.g. delay systems
- H01J23/26—Helical slow-wave structures; Adjustment therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
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Abstract
The invention discloses a kind of helixes applied to traveling wave tube slow-wave system, including lead-in spiral, throwout spiral, for the material of the lead-in spiral and the throwout spiral using tungsten narrowband, the specification of the lead-in spiral and the throwout spiral is 0.19 ± 0.005 × 0.45 ± 0.005mm.The present invention also proposes a kind of preparation method of the helix applied to traveling wave tube slow-wave system, includes the following steps：Step SS1 coilings；Step SS2 deoils；Step SS3 shapes；Step SS4 is polished；Step SS5 is dismantled；Step SS6 is electroplated；Step SS7 is sintered；Step SS8 detects pitch.The present invention extends travelling-wave tubes bandwidth of operation and avoids travelling-wave tubes and shaken in working band with generating second harmonic, improve job stability by the design and improvement to screw pitch Variable rate.
Description
Technical field
The present invention relates to a kind of helixes and preparation method applied to traveling wave tube slow-wave system, belong to vacuum electron device
Technical field.
Background technology
Travelling-wave tubes has bandwidth, big, the efficient, output power of gain etc. as vacuum microwave power amplifying device
Advantage has a wide range of applications in all kinds of military microwave transmitters, is known as " heart " of weaponry.With weaponry
Development, new requirement is constantly proposed to the technical indicator of travelling-wave tubes, it is desirable that output power, frequency and efficiency constantly improve,
The structure improvement of traveling wave tube slow-wave system is become as primary approach.
Invention content
It is an object of the invention to be improved to traveling wave tube slow-wave system helix, propose a kind of slow applied to travelling-wave tubes
The helix and preparation method of wave system system, by the design and improvement to screw pitch Variable rate, extend travelling-wave tubes bandwidth of operation
And avoid travelling-wave tubes and shaken in working band with generating second harmonic, improve job stability.
The present invention adopts the following technical scheme that：A kind of helix applied to traveling wave tube slow-wave system, which is characterized in that packet
Include lead-in spiral, throwout spiral, the material of the lead-in spiral and the throwout spiral is described using tungsten narrowband
The specification of lead-in spiral and the throwout spiral is 0.19 ± 0.005 × 0.45 ± 0.005mm.
Preferably, the lead-in spiral and equal copper electroplating layer on the throwout spiral.
Preferably, the thickness of the layers of copper is 0.006~0.009mm.
The present invention also proposes a kind of preparation method of the helix applied to traveling wave tube slow-wave system, which is characterized in that packet
Include following steps：
Step SS1 coilings：It is carried out respectively according to the pitch dimension parameter of lead-in spiral and throwout spiral using core bar
The coiling of lead-in spiral and throwout spiral；
Step SS2 deoils：The step SS1 is positioned over electrolysis of deoiling around the lead-in spiral and throwout spiral made
It deoils in liquid；
Step SS3 shapes：It shapes in a vacuum furnace lead-in spiral and throwout spiral made from the step SS2；
Step SS4 is polished：Using mechanical polishing method to lead-in spiral and output made from the step SS3 on lathe
Helix is mechanically polished, until the surface impulse- free robustness of lead-in spiral and throwout spiral stops；
Step SS5 is dismantled：Spiral by lead-in spiral made from core bar from the step SS4 and is exported by mechanical means
Stripping is fallen on line；
Step SS6 is electroplated：Lead-in spiral and throwout spiral made from the step SS5 are put into electrolytic copper plating solutions
Electroless copper processing is carried out, thickness of coated copper layer is 0.006~0.012mm；
Step SS7 is sintered：It is sintered lead-in spiral and throwout spiral made from the step SS6, mesh in a vacuum furnace
Be so that copper plate is firmly attached on lead-in spiral and throwout spiral；
Step SS8 detects pitch：Lead-in spiral made from the step SS7 and output spiral shell are detected using three-dimensional coordinate instrument
Whether the pitch of spin line meets pitch parameter request, if it is determined that being yes, then can determine that as qualified products.
Preferably, the formulated component ratio of the electrolyte that deoils described in the step SS2 is：
Sodium hydroxide： (60±3)g/L；
Sodium phosphate： (70±3)g/L；
Sodium carbonate： (30±1.5)g/L；
Sodium metasilicate： (10±0.5)g/L.
Preferably, the sizing described in the step SS3 further includes：It is raised in a vacuum furnace from room temperature by 90min heating
1100 ± 50 DEG C, 30min is then kept the temperature, heating is interrupted after finally dropping to 100 DEG C with vacuum drying oven.
Preferably, the formulated component ratio of the electrolytic copper plating solutions is：
Copper sulphate： (250±10)g/L；
Sulfuric acid： (33±1.5)mL/L；
Absolute ethyl alcohol： (62±3)mL/L.
Preferably, the sintering described in the step SS7 further includes：It is raised in a vacuum furnace from room temperature by 90min heating
900 ± 50 DEG C, 30min is then kept the temperature, heating is interrupted after finally dropping to 100 DEG C with vacuum drying oven.
The advantageous effect that the present invention is reached：The advantage of the invention is that using spiral string pitch transition techniques and helix
Pitch jump technique, which extends travelling-wave tubes working frequency range and avoids travelling-wave tubes, to be shaken in working band with generating second harmonic,
Improve travelling-wave tubes job stability；In addition helix of the invention uses the improvement of technology, to the shadow of travelling-wave tubes focusing magnetic field
Sound can be ignored, and Electron Beam Focusing will not be affected.
Description of the drawings
Fig. 1 is a kind of structure diagram of embodiment of the lead-in spiral of the present invention.
Fig. 2 is a kind of structure diagram of embodiment of the throwout spiral of the present invention.
Fig. 3 is a kind of flow chart of the preparation method of helix applied to traveling wave tube slow-wave system of the present invention.
Fig. 4 is the structure diagram of the core bar of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
Fig. 1 is a kind of structure diagram of embodiment of the lead-in spiral of the present invention.Lead-in spiral pitch dimension control
System is as follows：A areas screw pitch：1.22mm, 25 circles；B areas screw pitch：1.17mm, 6 circles；C areas screw pitch：1.12mm, 14 circles；D areas screw pitch：
1.12mm gradual changes are to 2mm, 2~3 circles.To ensure that total length can suitably decrease or increase the A areas number of turn, all pitch tolerance controls exist
±0.005mm。
Fig. 2 is a kind of structure diagram of embodiment of the throwout spiral of the present invention.Throwout spiral pitch dimension control
System is as follows：A areas screw pitch：1.15mm, 21 circles；B areas screw pitch：1.10mm1 circles, 1.05mm1 circles；C areas screw pitch：1.01mm, 5 circles；D areas
Screw pitch：1.05mm1 circles, 1.10mm1 circles；E areas screw pitch：1.15mm, 13 circles；F areas screw pitch：1.11mm gradual changes are to 0.95mm, 5 circles；G
Area's screw pitch：0.91mm, 9 circles；H areas screw pitch：0.91mm gradual changes are to 2mm, 2~3 circles.To ensure that total length can be decreased or increased suitably
The A areas number of turn, all pitch tolerance controls are in ± 0.005mm.
Fig. 3 is a kind of flow chart of the preparation method of helix applied to traveling wave tube slow-wave system of the present invention.This hair
Using tungsten narrowband, specification is 0.19 ± 0.005 × 0.45 ± 0.005mm for bright lead-in spiral and the material of throwout spiral.
The present invention also proposes a kind of preparation method of the helix applied to traveling wave tube slow-wave system, including following 8 steps
Suddenly.
Step SS1 coilings：It is carried out respectively according to the pitch dimension parameter of lead-in spiral and throwout spiral using core bar
The coiling of lead-in spiral and throwout spiral；Fig. 4 is the structure diagram of the core bar of the present invention, and stem material selects molybdenum materials,
Core bar outer diameter is controlled 1.72 ± 0.005, for ensureing helix internal diameter size.
Step SS2 deoils：The step SS1 is positioned over electrolysis of deoiling around the lead-in spiral and throwout spiral made
It deoils in liquid；The formulated component ratio of the electrolyte that deoils described in the step SS2 is：
Sodium hydroxide： (60±3)g/L；
Sodium phosphate： (70±3)g/L；
Sodium carbonate： (30±1.5)g/L；
Sodium metasilicate： (10±0.5)g/L.
Step SS3 shapes：It shapes in a vacuum furnace lead-in spiral and throwout spiral made from the step SS2；Institute
The sizing described in step SS3 is stated to further include：1100 ± 50 DEG C are raised to from room temperature by 90min heating in a vacuum furnace, Ran Houbao
Warm 30min interrupts heating after finally dropping to 100 DEG C with vacuum drying oven.
Step SS4 is polished：Using mechanical polishing method to lead-in spiral and output made from the step SS3 on lathe
Helix is mechanically polished, until the surface impulse- free robustness of lead-in spiral and throwout spiral stops.
Step SS5 is dismantled：Spiral by lead-in spiral made from core bar from the step SS4 and is exported by mechanical means
Stripping is fallen on line.
Step SS6 is electroplated：Lead-in spiral and throwout spiral made from the step SS5 are put into electrolytic copper plating solutions
Electroless copper processing is carried out, thickness of coated copper layer is 0.006~0.012mm；The formulated component ratio of the electrolytic copper plating solutions is：
Copper sulphate： (250±10)g/L；
Sulfuric acid： (33±1.5)mL/L；
Absolute ethyl alcohol： (62±3)mL/L.
Step SS7 is sintered：It is sintered lead-in spiral and throwout spiral made from the step SS6, mesh in a vacuum furnace
Be so that copper plate is firmly attached on lead-in spiral and throwout spiral.Sintering described in the step SS7 is also
Including：900 ± 50 DEG C are raised to from room temperature by 90min heating in a vacuum furnace, 30min is then kept the temperature, is finally dropped with vacuum drying oven
Heating is interrupted after to 100 DEG C.
Step SS8 detects pitch：Lead-in spiral made from the step SS7 and output spiral shell are detected using three-dimensional coordinate instrument
Whether the pitch of spin line meets pitch parameter request, if it is determined that being yes, then can determine that as qualified products.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of helix applied to traveling wave tube slow-wave system, which is characterized in that including lead-in spiral, throwout spiral,
The material of the lead-in spiral and the throwout spiral uses tungsten narrowband, the lead-in spiral and the output spiral
The specification of line is 0.19 ± 0.005 × 0.45 ± 0.005mm；The lead-in spiral pitch dimension control is as follows：A areas screw pitch：
1.22mm, 25 circles；B areas screw pitch：1.17mm, 6 circles；C areas screw pitch：1.12mm, 14 circles；D areas screw pitch：1.12mm gradual changes are to 2mm, and 2
~3 circles；The throwout spiral pitch dimension control is as follows：A areas screw pitch：1.15mm, 21 circles；B areas screw pitch：1.10mm1 circle,
1.05mm1 circle；C areas screw pitch：1.01mm, 5 circles；D areas screw pitch：1.05mm1 circles, 1.10mm1 circles；E areas screw pitch：1.15mm, 13 circles；
F areas screw pitch：1.11mm gradual changes are to 0.95mm, 5 circles；G areas screw pitch：0.91mm, 9 circles；H areas screw pitch：0.91mm gradual changes to 2mm, 2~
3 circles.
A kind of 2. helix applied to traveling wave tube slow-wave system according to claim 1, which is characterized in that the input
Helix and equal copper electroplating layer on the throwout spiral.
A kind of 3. helix applied to traveling wave tube slow-wave system according to claim 2, which is characterized in that the layers of copper
Thickness be 0.006~0.009mm.
4. a kind of preparation method of helix applied to traveling wave tube slow-wave system as described in any according to claim 1-3,
It is characterised in that it includes following steps：
Step SS1 coilings：It is inputted respectively according to the pitch dimension parameter of lead-in spiral and throwout spiral using core bar
The coiling of helix and throwout spiral；
Step SS2 deoils：The step SS1 is positioned over around the lead-in spiral and throwout spiral made in the electrolyte that deoils
It deoils；
Step SS3 shapes：It shapes in a vacuum furnace lead-in spiral and throwout spiral made from the step SS2；
Step SS4 is polished：Using mechanical polishing method to lead-in spiral made from the step SS3 and output spiral on lathe
Line is mechanically polished, until the surface impulse- free robustness of lead-in spiral and throwout spiral stops；
Step SS5 is dismantled：It will be made from core bar from the step SS4 on lead-in spiral and throwout spiral by mechanical means
Stripping is fallen；
Step SS6 is electroplated：Lead-in spiral and throwout spiral made from the step SS5 are put into electrolytic copper plating solutions and carried out
Electroless copper processing, thickness of coated copper layer are 0.006~0.012mm；
Step SS7 is sintered：It is sintered lead-in spiral and throwout spiral made from the step SS6 in a vacuum furnace, purpose exists
It is firmly attached on lead-in spiral and throwout spiral in causing copper plate；
Step SS8 detects pitch：Lead-in spiral and throwout spiral made from the step SS7 are detected using three-dimensional coordinate instrument
Pitch whether meet pitch parameter request, if it is determined that being yes, be then determined as qualified products.
5. a kind of preparation method of helix applied to traveling wave tube slow-wave system according to claim 4, feature exist
In the formulated component ratio of the electrolyte that deoils described in the step SS2 is：
Sodium hydroxide：(60±3)g/L；
Sodium phosphate：(70±3)g/L；
Sodium carbonate：(30±1.5)g/L；
Sodium metasilicate：(10±0.5)g/L.
6. a kind of preparation method of helix applied to traveling wave tube slow-wave system according to claim 4, feature exist
In the sizing described in the step SS3 further includes：1100 ± 50 DEG C are raised to from room temperature by 90min heating in a vacuum furnace, so
After keep the temperature 30min, after finally dropping to 100 DEG C with vacuum drying oven interrupt heating.
7. a kind of preparation method of helix applied to traveling wave tube slow-wave system according to claim 4, feature exist
In the formulated component ratio of the electrolytic copper plating solutions is：
Copper sulphate：(250±10)g/L；
Sulfuric acid：(33±1.5)mL/L；
Absolute ethyl alcohol：(62±3)mL/L.
8. a kind of preparation method of helix applied to traveling wave tube slow-wave system according to claim 4, feature exist
In the sintering described in the step SS7 further includes：900 ± 50 DEG C are raised to from room temperature by 90min heating in a vacuum furnace, so
After keep the temperature 30min, after finally dropping to 100 DEG C with vacuum drying oven interrupt heating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610538547.6A CN106158561B (en) | 2016-07-11 | 2016-07-11 | A kind of helix and preparation method applied to traveling wave tube slow-wave system |
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|---|---|---|---|
| CN201610538547.6A CN106158561B (en) | 2016-07-11 | 2016-07-11 | A kind of helix and preparation method applied to traveling wave tube slow-wave system |
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| CN106158561A CN106158561A (en) | 2016-11-23 |
| CN106158561B true CN106158561B (en) | 2018-07-06 |
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| CN111063593B (en) * | 2019-12-23 | 2022-10-14 | 南京三乐集团有限公司 | X-waveband 900W pulse space traveling wave tube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313474A (en) * | 1978-12-27 | 1982-02-02 | Thomson-Csf | Method for the manufacture of a microwave delay line and microwave delay line obtained by this method |
| CN101694825A (en) * | 2009-10-14 | 2010-04-14 | 安徽华东光电技术研究所 | Method for processing tungsten helical line of millimeter wave traveling-wave tube |
| CN102103961A (en) * | 2009-12-16 | 2011-06-22 | 中国科学院电子学研究所 | Slow-wave assembly used for X-waveband 45-W spatial traveling wave tube |
| CN103996589A (en) * | 2014-06-09 | 2014-08-20 | 成都国光电气股份有限公司 | S-waveband and C-waveband travelling wave tube |
-
2016
- 2016-07-11 CN CN201610538547.6A patent/CN106158561B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313474A (en) * | 1978-12-27 | 1982-02-02 | Thomson-Csf | Method for the manufacture of a microwave delay line and microwave delay line obtained by this method |
| CN101694825A (en) * | 2009-10-14 | 2010-04-14 | 安徽华东光电技术研究所 | Method for processing tungsten helical line of millimeter wave traveling-wave tube |
| CN102103961A (en) * | 2009-12-16 | 2011-06-22 | 中国科学院电子学研究所 | Slow-wave assembly used for X-waveband 45-W spatial traveling wave tube |
| CN103996589A (en) * | 2014-06-09 | 2014-08-20 | 成都国光电气股份有限公司 | S-waveband and C-waveband travelling wave tube |
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Address after: 241002 Huaxia science and Technology Park, hi tech Development Zone, Yijiang District, Wuhu, Anhui Patentee after: ANHUI HUADONG PHOTOELECTRIC TECHNOLOGY INSTITUTE Co.,Ltd. Address before: 241002 Huaxia science and Technology Park, hi tech Development Zone, Yijiang District, Wuhu, Anhui Patentee before: Anhui Huadong Polytechnic Institute |