CN102832090B - Heater assembly for space traveling wave tube and preparation method thereof - Google Patents
Heater assembly for space traveling wave tube and preparation method thereof Download PDFInfo
- Publication number
- CN102832090B CN102832090B CN201210313441.8A CN201210313441A CN102832090B CN 102832090 B CN102832090 B CN 102832090B CN 201210313441 A CN201210313441 A CN 201210313441A CN 102832090 B CN102832090 B CN 102832090B
- Authority
- CN
- China
- Prior art keywords
- heater
- negative electrode
- electrovacuum
- molybdenum cylinder
- electrode molybdenum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Resistance Heating (AREA)
- Microwave Tubes (AREA)
Abstract
The invention discloses a heater assembly for a space traveling wave tube and a preparation method thereof, wherein the heater assembly comprises a heater and a cathode molybdenum tube, one end of the heater is of a helical line structure, and the surface of one end of the heater of the helical line structure is provided with an electric vacuum aluminum oxide layer; one end of the thermionic valve with a spiral line structure is arranged in the cathode molybdenum cylinder, and electric vacuum aluminum oxide is filled between the thermionic valve and the cathode molybdenum cylinder; the preparation method of the thermal subassembly comprises five steps; the heater subassembly for the space traveling wave tube and the preparation method thereof have high heat efficiency and strong reliability, and can meet the development requirement of the space traveling wave tube.
Description
Technical field
The present invention relates to microwave vacuum field of electronic devices, be specifically related to a kind of heater assembly for space travelling wave tube and preparation method thereof.
Background technology
Space travelling wave tube is the core component in types of applications satellite, has not maintenanceability, and some satellites need to have even longer life-span more than ten years, and therefore space travelling wave tube must be high reliability long life; Secondly, space travelling wave tube must have high efficiency, because satellite operates in the sky, its energy is limited, and star 80% ~ 90% of energy will be used for travelling wave tube, so travelling wave tube must have efficiency high as far as possible, to save energy on star; Again, space travelling wave tube will have very strong shock resistance, anti-vibration performance, can stand the adverse circumstances of satellite launch.Negative electrode is travelling wave tube " heart ", the long-life of space travelling wave tube, high efficiency, high reliability, based on the negative electrode that must have long-life, low-power consumption, a high reliability.As the thermal source of negative electrode, the performance of heater assembly is directly connected to the index of negative electrode long-life, low-power consumption, high reliability, according to statistics, the inefficacy of negative electrode has 1/3rd to be caused by the damage of heater assembly, existing heater assembly power consumption is large, reliability is low, can not meet the needs of space travelling wave tube development.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide that a kind of heat efficiency is high, reliability is strong, can heater assembly for space travelling wave tube and preparation method thereof of meeting spatial travelling wave tube development need.
To achieve these goals, the technical solution used in the present invention is:
The described heater assembly for space travelling wave tube, be made up of heater and negative electrode molybdenum cylinder, described heater one end is helix structure, for the heater end surface of helix structure is provided with electrovacuum alumina layer; For heater one end of helix structure is located in negative electrode molybdenum cylinder, and be filled with electrovacuum aluminium oxide between heater and negative electrode molybdenum cylinder.
Described heater is made up of tungsten rhenium alloy wire, and the heater one end for helix is cylindrical screw structure.
Electrovacuum alumina layer sintering is at the heater end surface for helix structure.
The electrovacuum alumina sintering of filling between described heater, negative electrode molybdenum cylinder and heater and negative electrode molybdenum cylinder is integral.
The preparation method of the described heater assembly for space travelling wave tube, comprises the following steps;
(1) heater one end is turned to helix structure, and shape;
(2) at the heater end surface electrophoresis one deck electrovacuum aluminium oxide for helix structure, electrovacuum alumina layer thickness is 60 ~ 80 μm;
(3) heater of electrophoretic process is carried out hydrogen sintering, be placed on by the heater of electrophoretic process in 1650 ~ 1700 DEG C of wet hydrogens and be incubated 3 ± 1min, the electrophoresis alumina layer thickness after sintering is 30 ~ 50 μm;
(4) heater that step (3) processes is placed in negative electrode molybdenum cylinder, and fills electrovacuum alumina powder between negative electrode molybdenum cylinder and heater;
(5) heater assembly after step (4) being processed carries out hydrogen sintering, heater assembly is placed in 1720 ~ 1780 DEG C of wet hydrogens and is incubated 10 ± 2min, heater, aluminium oxide and negative electrode molybdenum cylinder are sintered into one, and the filling aluminium oxide after sintering is enough firm, and without through hole and crackle.
The invention has the advantages that: described heater assembly for space travelling wave tube and preparation method thereof, on the one hand, adopt the heater of helical structure, before heater and negative electrode molybdenum cylinder are assembled, first at heater electrophoresis last layer electrovacuum aluminium oxide, and electrophoresis layer is sintered, and then the heater after sintering is placed in negative electrode molybdenum cylinder, the insulation property between heater and negative electrode molybdenum cylinder can be increased like this, greatly improve the heat efficiency and the shock resistance of heater assembly; On the other hand, between negative electrode molybdenum cylinder and heater, fill the vacuum oxidizing aluminium powder that powers on, heater, vacuum oxidizing aluminium and negative electrode molybdenum cylinder are sintered into one, improve intensity and the heat efficiency of heater assembly further; This is used for the heater assembly of space travelling wave tube, and the heat efficiency is high, reliability is strong, the needs of energy meeting spatial travelling wave tube development.
Accompanying drawing explanation
Mark in the content expressed each width accompanying drawing of specification of the present invention below and figure is briefly described:
Fig. 1 is the structural representation of the present invention for the heater of the heater assembly of space travelling wave tube;
Fig. 2 is the structural representation of the present invention for the heater assembly of space travelling wave tube;
Mark in above-mentioned figure is:
1, negative electrode molybdenum cylinder, 2, heater, 3, electrovacuum aluminium oxide.
Embodiment
Contrast accompanying drawing below, by the description to optimum embodiment, the specific embodiment of the present invention is described in further detail.
As shown in Figures 1 and 2, the described heater assembly for space travelling wave tube, be made up of heater 2 and negative electrode molybdenum cylinder 1, heater 2 one end is helix structure, for heater 2 end surface of helix structure is provided with electrovacuum alumina layer; For heater 2 one end of helix structure is located in negative electrode molybdenum cylinder 1, and be filled with electrovacuum aluminium oxide 3 between heater 2 and negative electrode molybdenum cylinder 1.
Adopt the tungsten rhenium alloy wire of superior performance, turn to the heater 2 of short cylindrical spiral line type, heater 2 one end being helix is cylindrical screw structure; For reinforced insulation, before heater 2 and negative electrode molybdenum cylinder 1 combine, first by heater 2 electrophoresis last layer electrovacuum aluminium oxide, and electrophoresis layer sintered, the heater 2 end surface sintering of helix has electrovacuum alumina layer; Heater 2 after sintering is placed in negative electrode molybdenum cylinder 1, the vacuum oxidizing aluminium 3 that powers on is filled between negative electrode molybdenum cylinder 1 and heater 2, and sinter, heater 2 and negative electrode molybdenum cylinder 1 is made to form one, effectively can improve the heat efficiency and the reliability of heater assembly like this, make the intensity impact resistance of heater assembly good, and the heat efficiency is high.
Embodiment one
The preparation method of the described heater assembly for space travelling wave tube, comprises the following steps;
(1) adopt tungsten rhenium alloy wire and turn to short cylindrical spiral type heater, and shaping,
(2) be short cylindrical spiral type heater end surface electrophoresis one deck electrovacuum aluminium oxide, electrovacuum alumina layer thickness is 80 μm;
(3) what step (2) processed carries out hydrogen sintering for short cylindrical spiral type heater one end, is placed on by the heater of electrophoretic process in 1700 DEG C of wet hydrogens and is incubated 2min, and the electrophoresis alumina layer thickness after sintering is 50 μm;
(4) heater that step (3) processes is placed in negative electrode molybdenum cylinder, and fills electrovacuum alumina powder between negative electrode molybdenum cylinder and heater;
(5) heater assembly after step (4) being processed carries out hydrogen sintering, heater assembly is placed in 1720 DEG C of wet hydrogens and is incubated 12min, heater, aluminium oxide and negative electrode molybdenum cylinder are sintered into one, and the filling aluminium oxide after sintering is enough firm, and without through hole and crackle.
Embodiment two
The preparation method of the described heater assembly for space travelling wave tube, comprises the following steps;
(1) adopt tungsten rhenium alloy wire and turn to short cylindrical spiral type heater, and shaping,
(2) be short cylindrical spiral type heater end surface electrophoresis one deck electrovacuum aluminium oxide, electrovacuum alumina layer thickness is 60 μm;
(3) what step (2) processed carries out hydrogen sintering for short cylindrical spiral type heater one end, is placed in 1650 wet hydrogens by the heater of electrophoretic process and is incubated 4min, and the electrophoresis alumina layer thickness after sintering is 30 μm;
(4) heater that step (3) processes is placed in negative electrode molybdenum cylinder, and fills electrovacuum alumina powder between negative electrode molybdenum cylinder and heater;
(5) heater assembly after step (4) being processed carries out hydrogen sintering, heater assembly is placed in 1780 DEG C of wet hydrogens and is incubated 8min, heater, aluminium oxide and negative electrode molybdenum cylinder are sintered into one, and the filling aluminium oxide after sintering is enough firm, and without through hole and crackle.
Embodiment three
The preparation method of the described heater assembly for space travelling wave tube, comprises the following steps;
(1) heater one end is turned to helix structure, and shape;
(2) at the heater end surface electrophoresis one deck electrovacuum aluminium oxide for helix structure, electrovacuum alumina layer thickness is 70 μm;
(3) heater of electrophoretic process is carried out hydrogen sintering, be placed on by the heater of electrophoretic process in 1680 DEG C of wet hydrogens and be incubated 3min, the electrophoresis alumina layer thickness after sintering is 40 μm;
(4) heater that step (3) processes is placed in negative electrode molybdenum cylinder, and fills electrovacuum alumina powder between negative electrode molybdenum cylinder and heater;
(5) heater assembly after step (4) being processed carries out hydrogen sintering, heater assembly is placed in 1750 DEG C of wet hydrogens and is incubated 10min, heater, aluminium oxide and negative electrode molybdenum cylinder are sintered into one, and the filling aluminium oxide after sintering is enough firm, and without through hole and crackle.
In embodiment one, embodiment two and embodiment three, in described step (3) and step (5), wet hydrogen used refers to reach capacity and separates out the hydrogen of moisture.
Described heater assembly for space travelling wave tube and preparation method thereof, on the one hand, adopt the heater of helical structure, before heater and negative electrode molybdenum cylinder are assembled, first at heater electrophoresis last layer electrovacuum aluminium oxide, and electrophoresis layer is sintered, and then the heater after sintering is placed in negative electrode molybdenum cylinder, the insulation property between heater and negative electrode molybdenum cylinder can be increased like this, greatly improve the heat efficiency and the shock resistance of heater assembly; On the other hand, between negative electrode molybdenum cylinder and heater, fill the vacuum oxidizing aluminium powder that powers on, heater, vacuum oxidizing aluminium and negative electrode molybdenum cylinder are sintered into one, improve intensity and the heat efficiency of heater assembly further; This is used for the heater assembly of space travelling wave tube, and the heat efficiency is high, reliability is strong, the needs of energy meeting spatial travelling wave tube development.
Above to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (1)
1. the preparation method for the heater assembly of space travelling wave tube, described heater assembly, be made up of heater (2) and negative electrode molybdenum cylinder (1), described heater (2) one end is helix structure, for heater (2) end surface of helix structure is provided with electrovacuum alumina layer; Electrovacuum alumina layer sintering is at heater (2) end surface for helix structure; For heater (2) one end of helix structure is located in negative electrode molybdenum cylinder (1), and be filled with electrovacuum aluminium oxide (3) between heater (2) and negative electrode molybdenum cylinder (1); Described heater is made up of tungsten rhenium alloy wire, for heater (2) one end of helix is cylindrical screw structure; Described heater (2), negative electrode molybdenum cylinder (1) and the electrovacuum aluminium oxide (3) of filling between heater (2) and negative electrode molybdenum cylinder (1) are sintered into one; It is characterized in that: comprise the following steps;
(1) heater one end is turned to helix structure, and shape;
(2) at the heater end surface electrophoresis one deck electrovacuum aluminium oxide for helix structure, electrovacuum alumina layer thickness is 60 ~ 80 μm;
(3) heater of electrophoretic process is placed on insulation 3 ± 1min in 1650 ~ 1700 DEG C of wet hydrogens and carries out hydrogen sintering, the electrophoresis alumina layer thickness after sintering is 30 ~ 50 μm;
(4) heater that step (3) processes is placed in negative electrode molybdenum cylinder, and fills electrovacuum alumina powder between negative electrode molybdenum cylinder and heater;
(5) heater assembly after step (4) being processed is placed on insulation 10 ± 2min in 1720 ~ 1780 DEG C of wet hydrogens and carries out hydrogen sintering, and heater, electrovacuum aluminium oxide and negative electrode molybdenum cylinder are sintered into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210313441.8A CN102832090B (en) | 2012-08-29 | 2012-08-29 | Heater assembly for space traveling wave tube and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210313441.8A CN102832090B (en) | 2012-08-29 | 2012-08-29 | Heater assembly for space traveling wave tube and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102832090A CN102832090A (en) | 2012-12-19 |
| CN102832090B true CN102832090B (en) | 2015-04-22 |
Family
ID=47335175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210313441.8A Active CN102832090B (en) | 2012-08-29 | 2012-08-29 | Heater assembly for space traveling wave tube and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102832090B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182377B (en) * | 2015-08-21 | 2018-06-19 | 上海海积信息科技股份有限公司 | A kind of receiver board and receiver |
| CN106128903A (en) * | 2016-08-31 | 2016-11-16 | 安徽华东光电技术研究所 | A kind of novel cathode molybdenum barrel structure and manufacture method thereof |
| CN109518258B (en) * | 2018-12-28 | 2021-01-26 | 有研工程技术研究院有限公司 | Preparation method of insulating hot wire for electric vacuum |
| CN112863972B (en) * | 2021-01-11 | 2024-02-06 | 中国科学院空天信息创新研究院 | Quick heating cathode thermal subassembly and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1183602B (en) * | 1962-07-30 | 1964-12-17 | Philips Nv | Method for covering a filament for an indirectly heated cathode with a black-radiating insulating layer |
| US3936367A (en) * | 1973-12-22 | 1976-02-03 | International Standard Electric Corporation | Method of producing a layer of dark colored heat radiating insulating material for heaters of indirectly heated cathodes |
| US4912362A (en) * | 1987-10-09 | 1990-03-27 | Thomson-Csf | Sturdy oxide cathode for cathode ray tube |
| CN1956124A (en) * | 2005-10-27 | 2007-05-02 | 中国科学院电子学研究所 | High efficient cathode assembly |
-
2012
- 2012-08-29 CN CN201210313441.8A patent/CN102832090B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1183602B (en) * | 1962-07-30 | 1964-12-17 | Philips Nv | Method for covering a filament for an indirectly heated cathode with a black-radiating insulating layer |
| US3936367A (en) * | 1973-12-22 | 1976-02-03 | International Standard Electric Corporation | Method of producing a layer of dark colored heat radiating insulating material for heaters of indirectly heated cathodes |
| US4912362A (en) * | 1987-10-09 | 1990-03-27 | Thomson-Csf | Sturdy oxide cathode for cathode ray tube |
| CN1956124A (en) * | 2005-10-27 | 2007-05-02 | 中国科学院电子学研究所 | High efficient cathode assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102832090A (en) | 2012-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102832090B (en) | Heater assembly for space traveling wave tube and preparation method thereof | |
| CN102222568B (en) | Aluminium electrolytic capacitor specially used in LED driving power supply and manufacturing method thereof | |
| CN106409507B (en) | A kind of thin film capacitor and its processing method of high-temp resisting high-humidity resisting application | |
| CN104934224A (en) | Aluminum electrolytic capacitor | |
| CN103684082A (en) | Minitype geothermal generator | |
| CN203826461U (en) | End-surface-welded cylindrical lithium battery | |
| CN202018886U (en) | Composite film medium filter capacitor | |
| CN201877390U (en) | Brazing structure of oxygen-free copper and ceramic | |
| CN202534529U (en) | Novel capacitor | |
| CN104916433A (en) | Capacitor | |
| CN213366392U (en) | Heat radiator for film capacitor | |
| CN102486966A (en) | Aluminium electrolytic capacitor | |
| CN204130346U (en) | Capacitor | |
| CN202268456U (en) | Battery core radiating structure for large-capacity lithium battery | |
| CN203871185U (en) | Novel low-temperature-resistant aluminum electrolytic capacitor | |
| CN103227052A (en) | Method for manufacturing medium-high voltage aluminum electrolytic capacitor | |
| CN102646517A (en) | Supercapacitor and electrode thereof | |
| CN202678271U (en) | Novel traveling wave tube collector | |
| CN102064651B (en) | Direct current motor for variable pitch wind power generation | |
| CN201397745Y (en) | Non-solid electrolyte high frequency tantalum capacitor | |
| CN203706891U (en) | Supercapacitor pole piece and supercapacitor using same | |
| CN205081633U (en) | Aerogenerator heat dissipation enhancement mode rotor magnetic pole | |
| CN205356259U (en) | Modular is terminal box for solar module | |
| CN201956316U (en) | Miniature collector insulation structure for spatial traveling wave tube | |
| CN204966292U (en) | High -pressure high performance aluminium electrolytic capacitor of wide temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 241000 No.01 Eshan Road, high tech Development Zone, Yijiang District, Wuhu City, Anhui Province Patentee after: ANHUI HUADONG PHOTOELECTRIC TECHNOLOGY INSTITUTE Co.,Ltd. Address before: 241000 Anhui Province, Wuhu city Yijiang District South high tech Development Zone Technology Park mansion Patentee before: Anhui Huadong Polytechnic Institute |
|
| CP03 | Change of name, title or address |