CN104485270A - Manufacturing process of slow wave system for helix travelling wave tube - Google Patents
Manufacturing process of slow wave system for helix travelling wave tube Download PDFInfo
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- CN104485270A CN104485270A CN201410623601.8A CN201410623601A CN104485270A CN 104485270 A CN104485270 A CN 104485270A CN 201410623601 A CN201410623601 A CN 201410623601A CN 104485270 A CN104485270 A CN 104485270A
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- slow wave
- helix
- manufacturing process
- wave system
- supporting rod
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
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- Manufacturing & Machinery (AREA)
- Microwave Tubes (AREA)
Abstract
The invention relates to a manufacturing process of a slow wave system for a helix travelling wave tube. The manufacturing process comprises steps that, (1), a helix and a clamping rod are put in a tube casing to form a slow wave before extrusion; (2), the slow wave before extrusion is put in an extrusion tool, the position corresponding to the clamping rod is aligned with a pressing head of the extrusion tool, pressing force is exerted through the extrusion tool to make the tube casing, the clamping rod and the helix to realize tight contact; (3), a white copper ring and a pure iron pole shoe are sleeved outside the tube casing, an AgCu welding material is filled, and the parts are sent to a hydrogen furnace; (4), the temperature curve of a hydrogen furnace is set as follows, the temperature increasing/decreasing speed is 15DEG C/min, the soldering temperature is 780 DEG C, the insulation time is 2 minutes, and the parts are taken out after soldering; and (5), whether the clamping rod and the helix of the slow wave system generate displacement and whether the welding material is fully melted are detected through a microscope. According to the manufacturing process, structure soundness and thermal diffusivity of the slow wave system are greatly improved through the hot compression effect, and bearable power of the whole tube can be improved correspondingly.
Description
Technical field
The invention belongs to microwave electron tube field, specifically a kind of manufacturing process of helix TWT slow wave system.
Background technology
In the development process of helix line traveling wave tube slow-wave system, in order to increase the heat-sinking capability of slow wave system further, can be realized by the tightness degree adopting the material of high heat conductance and the contact area increased between supporting rod and slow wave line and shell and increase clamping.Slow wave line, the method that grips between supporting rod and metal shell three have many kinds, conventional method coldly suppresses method and heat compression, but, coldly suppress method due to shell good elasticity must be had therefore to be necessary for elastic stainless steel or monel material, and the thermal conductivity of this bi-material is all undesirable, therefore the heat-sinking capability of slow wave is limited.And heat compression is after to be requirement too first send helix and supporting rod into shell fixation by cold method of suppressing, then carry out hot compression, otherwise displacement can be produced cause slow wave to be scrapped, so heat compression generally all requires employing monel material in pyrocondensation process.The heat-sinking capability of this slow wave is also not ideal, and in high-power spiral line row wave tube, proposes more and more higher requirement to the heat-sinking capability of slow wave, is therefore necessary to carry out new design to slow wave manufacturing process.
Summary of the invention
Technical problem to be solved by this invention is, conventional coldly suppresses technique and the obtained slow wave system heat-sinking capability of pyrocondensation technique is not enough, in order to strengthen the heat-sinking capability of slow wave system, just requires further improvement slow wave manufacturing process.
For achieving the above object, the design is realized by following technological means:
A manufacturing process for helix TWT slow wave system, is characterized in that: comprise following operation:
(1) helix and supporting rod are loaded shell, the slow wave before composition extruding;
(2) slow wave before extruding is put into extrusion tooling, is alignd with the pressure head of extrusion tooling in position corresponding for supporting rod, then apply pressure by frock, make close contact between shell, supporting rod, helix three;
(3) outside shell, overlap copper-nickel alloy ring and pure iron pole shoe, put AgCu28 solder, send into hydrogen stove;
(4) hydrogen stove set temperature curve is as follows: heating and cooling 15 DEG C/min, brazing temperature 780 DEG C, is incubated 2 minutes, takes out after parts soldering terminates;
(5) check whether supporting rod and the helix of slow wave system are subjected to displacement, whether solder melts fully under the microscope.
Further:
The manufacturing process of described a kind of helix TWT slow wave system, is characterized in that: described slow wave shell adopts oxygenless copper material.
The manufacturing process of described a kind of helix TWT slow wave system, is characterized in that: described supporting rod adopts boron nitride BN material.
The manufacturing process of described a kind of helix TWT slow wave system, is characterized in that: described helix adopts disperse oxygenless copper material.
The manufacturing process of described a kind of helix TWT slow wave system, is characterized in that: extrusion tool body position is placed directly in the region that shell contacts with supporting rod.
The manufacturing process of described a kind of helix TWT slow wave system, is characterized in that: soldering is carried out in the outside using copper-nickel alloy ring and pure iron pole shoe to be enclosed within copper pipe shell after slow wave system extruding.
The invention has the beneficial effects as follows: this novel manufacturing process mainly have employed the oxygen-free copper shell of high heat conductance, correspondingly have also been changed supporting rod and helix material, impose the hot compression effect of follow-on extrusion process and outside soldering generation again, slow wave system structural integrity and thermal diffusivity are largely increased, and homogeneous tube can bear that power is corresponding to be improved.
Accompanying drawing explanation
Fig. 1 is slow wave system structural representation of the present invention, and Fig. 2 is Fig. 1 left view, and Fig. 3 is the ram position schematic diagram of supporting rod and extrusion tooling.
The implication of drawing reference numeral is as follows: 1 helix, 2 supporting rods, 3 shells, 4 copper-nickel alloy rings, 5 pole shoes, the pressure head of 6 extrusion toolings.
Embodiment
Below in conjunction with Figure of description, design is further described.
As Figure 1-3, a kind of manufacturing process of helix TWT slow wave system, is characterized in that: comprise following operation:
(1) helix 1 and supporting rod 2 are loaded shell 3, the slow wave before composition extruding.
(2) slow wave before extruding is put into extrusion tooling, is alignd with the pressure head 6 of extrusion tooling in the position of supporting rod 2 correspondence, then apply pressure by frock, make close contact between shell 3, supporting rod 2, helix 1 three.
(3) outside shell 3, overlap copper-nickel alloy ring 4 and pure iron pole shoe 5, put AgCu28 solder, send into hydrogen stove.
(4) hydrogen stove set temperature curve is as follows: heating and cooling 15 DEG C/min, brazing temperature 780 DEG C, is incubated 2 minutes.Take out after parts soldering terminates.
(5) check whether supporting rod 2 and the helix 1 of slow wave system are subjected to displacement, whether solder melts fully under the microscope.
Use follow-on extrusion process, with cold suppress unlike, extrusion position is placed directly in the region that shell contacts with supporting rod, because shell is copper product, therefore the copper of extrusion position can directly be subdued with supporting rod laminating tight, and also can not resilience after extrusion tooling unclamps, thus ensure that the stability of slow wave system.
Further:
The manufacturing process of described a kind of helix TWT slow wave system, is characterized in that: described slow wave shell 3 adopts oxygenless copper material.
Oxygenless copper material thermal conductivity far away higher than stainless steel and Monel, and due to its plasticity good, can after being squeezed better with supporting rod laminating closely, this will improve the heat-sinking capability of slow wave system greatly.
The manufacturing process of described a kind of helix TWT slow wave system, is characterized in that: described supporting rod 2 adopts boron nitride BN material.
This material thermal conductivity at high temperature can match in excellence or beauty beryllium oxide (BeO) pottery, and it has good elasticity, to ensure in slow wave assembling process not easy fracture, for improve slow wave system with heat-sinking capability and manufacture qualification rate and having very great help.
The manufacturing process of described a kind of helix TWT slow wave system, is characterized in that: described helix 1 adopts disperse oxygenless copper material.
Oxygenless copper material had both had the good heat radiating ability of copper, had again higher hardness, can not produce plastic deformation in extrusion process because of too soft.
The manufacturing process of described a kind of helix TWT slow wave system, it is characterized in that: use follow-on extrusion process, extrusion position is placed directly in the region that shell contacts with supporting rod.
Because shell is copper product, therefore extrusion position directly changes the region being placed on shell and contacting with supporting rod, the copper of this position can directly be subdued with supporting rod laminating closely, and extrusion tooling also can not resilience after unclamping, thus ensure that the stability of slow wave system.
The manufacturing process of described a kind of helix TWT slow wave system, is characterized in that: soldering is carried out in the outside using copper-nickel alloy ring 4 and pure iron pole shoe 5 to be enclosed within copper pipe shell after slow wave system extruding.
Because the coefficient of expansion of oxygen-free copper shell is greater than copper-nickel alloy and pure iron, therefore the effect of similar hot compression can be produced when soldering, inwardly extruding is transferred after making the outside swelling blockage of oxygen-free copper, ensure that slow wave system is more firm, and avoid make supporting rod when being vented because of the expansion of copper, helix loosens displacement.And whole slow wave system is after brazing due to the effect of copper-nickel alloy ring and pure iron pole shoe, bulk strength significantly improves, flexural deformation when avoiding follow-up assembling and supporting rod fracture equivalent risk.
More than show and describe the general principle of the design, principal character and advantage.The technical staff of the industry should understand; the design is not restricted to the described embodiments; the principle that the design is just described described in above-described embodiment and specification; under the prerequisite not departing from the design's spirit and scope; the design also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the design.The claimed scope of the design is defined by appending claims and equivalent thereof.
Claims (6)
1. a manufacturing process for helix TWT slow wave system, is characterized in that: comprise following operation:
(1) helix and supporting rod are loaded shell, the slow wave before composition extruding;
(2) slow wave before extruding is put into extrusion tooling, is alignd with the pressure head of extrusion tooling in position corresponding for supporting rod, then apply pressure by frock, make close contact between shell, supporting rod, helix three;
(3) outside shell, overlap copper-nickel alloy ring and pure iron pole shoe, put AgCu28 solder, send into hydrogen stove;
(4) hydrogen stove set temperature curve is as follows: heating and cooling 15 DEG C/min, brazing temperature 780 DEG C, is incubated 2 minutes, takes out after parts soldering terminates;
(5) check whether supporting rod and the helix of slow wave system are subjected to displacement, whether solder melts fully under the microscope.
2. the manufacturing process of a kind of helix TWT slow wave system as claimed in claim 1, is characterized in that: described slow wave shell adopts oxygenless copper material.
3. the manufacturing process of a kind of helix TWT slow wave system as claimed in claim 1, is characterized in that: described supporting rod adopts boron nitride BN material.
4. the manufacturing process of a kind of helix TWT slow wave system as claimed in claim 1, is characterized in that: described helix adopts disperse oxygenless copper material.
5. the manufacturing process of a kind of helix TWT slow wave system as claimed in claim 1, is characterized in that: extrusion tool body position is placed directly in the region that shell contacts with supporting rod.
6. the manufacturing process of a kind of helix TWT slow wave system as claimed in claim 1, is characterized in that: soldering is carried out in the outside using copper-nickel alloy ring and pure iron pole shoe to be enclosed within copper pipe shell after slow wave system extruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623601.8A CN104485270A (en) | 2014-11-10 | 2014-11-10 | Manufacturing process of slow wave system for helix travelling wave tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623601.8A CN104485270A (en) | 2014-11-10 | 2014-11-10 | Manufacturing process of slow wave system for helix travelling wave tube |
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| CN104485270A true CN104485270A (en) | 2015-04-01 |
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| CN201410623601.8A Pending CN104485270A (en) | 2014-11-10 | 2014-11-10 | Manufacturing process of slow wave system for helix travelling wave tube |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106444642A (en) * | 2016-12-15 | 2017-02-22 | 广州中国科学院先进技术研究所 | Slow wave module tube extrusion and detection controlling system and method |
| CN106683958A (en) * | 2017-02-07 | 2017-05-17 | 中国科学院电子学研究所 | Preparation method of compound pipe shell and helix traveling wave tube |
| CN106876228A (en) * | 2017-03-02 | 2017-06-20 | 重庆德卡汽车零部件制造有限公司 | A kind of manufacturing process of helix TWT slow wave system |
| CN109755083A (en) * | 2018-11-29 | 2019-05-14 | 南京三乐集团有限公司 | A kind of helix line slow-wave system thermal expansion assembly method |
| CN110137057A (en) * | 2019-05-28 | 2019-08-16 | 安徽华东光电技术研究所有限公司 | The manufacturing method of high-termal conductivity helical line slow-wave structure |
| CN110690088A (en) * | 2019-10-16 | 2020-01-14 | 南京三乐集团有限公司 | Assembly method of helix traveling wave tube high-frequency circuit |
| CN111029229A (en) * | 2019-11-26 | 2020-04-17 | 南京三乐集团有限公司 | Boron nitride clamping rod degassing device and method for traveling wave tube |
| CN114538933A (en) * | 2020-11-24 | 2022-05-27 | 娄底市安地亚斯电子陶瓷有限公司 | Method for manufacturing travelling wave tube clamping rod |
-
2014
- 2014-11-10 CN CN201410623601.8A patent/CN104485270A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106444642A (en) * | 2016-12-15 | 2017-02-22 | 广州中国科学院先进技术研究所 | Slow wave module tube extrusion and detection controlling system and method |
| CN106683958A (en) * | 2017-02-07 | 2017-05-17 | 中国科学院电子学研究所 | Preparation method of compound pipe shell and helix traveling wave tube |
| CN106683958B (en) * | 2017-02-07 | 2019-02-15 | 中国科学院电子学研究所 | The preparation method of composite pipe shell and helix TWT |
| CN106876228A (en) * | 2017-03-02 | 2017-06-20 | 重庆德卡汽车零部件制造有限公司 | A kind of manufacturing process of helix TWT slow wave system |
| CN106876228B (en) * | 2017-03-02 | 2019-01-15 | 重庆德卡汽车零部件制造有限公司 | A kind of manufacturing process of helix TWT slow wave system |
| CN109755083B (en) * | 2018-11-29 | 2021-05-18 | 南京三乐集团有限公司 | Thermal expansion assembly method for helical line slow-wave system |
| CN109755083A (en) * | 2018-11-29 | 2019-05-14 | 南京三乐集团有限公司 | A kind of helix line slow-wave system thermal expansion assembly method |
| CN110137057A (en) * | 2019-05-28 | 2019-08-16 | 安徽华东光电技术研究所有限公司 | The manufacturing method of high-termal conductivity helical line slow-wave structure |
| CN110690088A (en) * | 2019-10-16 | 2020-01-14 | 南京三乐集团有限公司 | Assembly method of helix traveling wave tube high-frequency circuit |
| CN110690088B (en) * | 2019-10-16 | 2022-03-25 | 南京三乐集团有限公司 | Assembly method of helix traveling wave tube high-frequency circuit |
| CN111029229A (en) * | 2019-11-26 | 2020-04-17 | 南京三乐集团有限公司 | Boron nitride clamping rod degassing device and method for traveling wave tube |
| CN111029229B (en) * | 2019-11-26 | 2022-06-21 | 南京三乐集团有限公司 | Boron nitride clamping rod degassing device and method for traveling wave tube |
| CN114538933A (en) * | 2020-11-24 | 2022-05-27 | 娄底市安地亚斯电子陶瓷有限公司 | Method for manufacturing travelling wave tube clamping rod |
| CN114538933B (en) * | 2020-11-24 | 2022-11-22 | 娄底市安地亚斯电子陶瓷有限公司 | Method for manufacturing travelling wave tube clamping rod |
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Application publication date: 20150401 |