CN103160901A - Protective fixture for anode oxidation of radiation radiator of space travelling wave tube - Google Patents
Protective fixture for anode oxidation of radiation radiator of space travelling wave tube Download PDFInfo
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- CN103160901A CN103160901A CN2011104144357A CN201110414435A CN103160901A CN 103160901 A CN103160901 A CN 103160901A CN 2011104144357 A CN2011104144357 A CN 2011104144357A CN 201110414435 A CN201110414435 A CN 201110414435A CN 103160901 A CN103160901 A CN 103160901A
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Abstract
The invention relates to a protective fixture for anode oxidation of a radiation radiator of a space travelling wave tube, and relates to the technology of electron vacuum devices. The protective fixture comprises an upper cover plate, a lower cover plate, a sealing ring and fastening screws. The upper surface of the upper cover plate has columnar boss which is connected with a positive electrode of an outer power supply; the lower surface of the upper cover plate has an annular groove provided with a sealing ring therein; four through holes are uniformly distributed on the upper cover plate circumferentially; the upper surface of the radiation radiator is uniformly provided with four fastening screw holes; the upper through holes are adapted to the upper fastening screw holes; the upper cover plate is fixedly connected with the upper end of the radiation radiator by the fastening screws; the upper surface of a platelike lower cover plate is provided with an annular groove provided with a sealing ring therein; four through holes are uniformly distributed on the lower cover plate circumferentially; four fastening screw holes are uniformly distributed on the lower surface of the radiation radiator; the lower through holes are adapted to the lower fastening screw holes; and the lower cover plate is fixedly connected with the lower end of the radiation radiator by the fastening screws. The fixture provided by the invention can protect the inner surface of the radiation radiator from being polluted and destroyed during an anode oxidation process, and can make the radiation radiator better brazed with a collector of the travelling wave tube.
Description
Technical field
The present invention relates to the electron tube technical field, is the protectiveness fixture that uses in a kind of space travelling wave tube radiator anode oxidation process.
Background technology
Space travelling wave tube is the core component of final power amplifier that is widely used in repeater, data transmission system, radar and the ECM transmitter etc. of telstar, reconnaissance satellite, Navsat, landsat, weather satellite, seasat and manned space flight and lunar exploration engineering.For telstar and Navsat, the space travelling wave tube quantity of using on star is very large, and the used heat that they produce can not directly be arranged loose in satellite capsule, otherwise can cause that the temperature of on-board equipment raises, and affects their normal operation.For guaranteeing that on star, all devices can work for a long time, the used heat row that travelling-wave tubes must be produced is loose in the outer space.For this reason, nearly all telstar has all adopted radiator with space travelling wave tube.By on the space travelling wave tube collector, radiator being installed, a large amount of waste heat radiations that directly travelling-wave tubes produced in deep space, thereby significantly reduce the heat that travelling-wave tubes passes to satellite.
In order to make radiator outside radiations heat energy expeditiously, need to prepare one deck thermal radiation coating by anodizing technology at the radiator outside surface.The anodic oxidation of radiator is put into cell liquid with radiator exactly, radiator arrives the positive pole of external power as anodic bonding in cell liquid, the negative electrode of cell liquid is connected to the negative pole of external power, under impressed voltage by electric current keeping electrochemical oxidation reactions, finally in the coating of a kind of high-heating radiation rate of radiator Surface Creation.
On the other hand, can reliablely and stablely work in order to make radiator, usually with radiator and space travelling wave tube collector by low temperature brazing link together [reference: Yuan Guangjiang, Liu Pukun, Zhang Xiaolin, Deng Feng.Radiator is connected dedicated system with the soldering of space travelling wave tube collector.Number of patent application: 201110101382.3, patent application day: 2011.4.22].For radiator and traveling-wave tube collector are brazed together solid and reliablely, need to process the radiator internal surface, the scolder that low temperature brazing is used can be wetting well in the above.
In order to keep well the heat-radiating properties of radiation coating on the radiator outside surface, usually at first the radiator internal surface is carried out surface treatment, again the radiator outside surface is carried out anodic oxidation treatment afterwards.But in the anodic oxidation treatment process, usually the radiator internal surface of having handled well is polluted, destroys, the scolder that low temperature brazing is used can not be wetting well in the above, makes radiator be difficult to be brazed together well with traveling-wave tube collector.
Summary of the invention
The objective of the invention is to disclose the protectiveness fixture in the anodic oxidation of a kind of space travelling wave tube radiator; in anode oxidation process effectively protection radiator internal surface not contaminated, destroy; solved well the problem that exists; make radiator be easy to be brazed together well with traveling-wave tube collector, established solid foundation for producing spoke cold mould space travelling wave tube.
For achieving the above object, technical solution of the present invention is:
Protectiveness fixture in the anodic oxidation of a kind of space travelling wave tube radiator, it comprises upper cover plate 1; Lower cover 4; Sealing-ring 5; Trip bolt 6; Wherein:
Tabular upper cover plate 1 upper surface middle part has a columnar projections 1a, and a central blind hole 1b is arranged at columnar projections 1a top, and blind hole 1b inwall has screw thread 1c, is connected to anodic oxidation with the positive pole of external power by screw thread 1c; Upper cover plate 1 lower surface has a circle groove structure 1d, and sealing-ring 5a is arranged in groove structure 1d; Circumferential uniform 4 the through hole 1e of upper cover plate 1, radiator 2 upper surfaces circumferentially are evenly equipped with 4 fastening screw 2a, upper cover plate 1 is affixed by trip bolt 6a and radiator 2 upper ends, and fastening screw 2a and the trip bolt 6a of the through hole 1e of upper cover plate 1, radiator 2 upper surfaces are suitable;
Tabular lower cover 4 upper surfaces have a circle groove structure 4a, sealing-ring 5b is arranged in groove structure 4a, circumferential uniform 4 the through hole 4b of lower cover 4, radiator 2 lower surfaces circumferentially are evenly equipped with 4 fastening screw 2b, lower cover 4 is affixed by trip bolt 6b and radiator 2 lower ends, and fastening screw 2b and the trip bolt 6b of the through hole 4b of lower cover 4, radiator 2 lower surfaces are suitable;
Tabular upper cover plate 1, tabular lower cover 4 thickness H are 5-8mm.
Protectiveness fixture in described radiator anodic oxidation, the groove structure 1d of its described upper cover plate 1 lower surface, or the groove structure 4a of lower cover 4 upper surfaces, the internal diameter of groove structure 1d, 4a is less than the diameter 2-4mm of the through hole 3a of radiator 2 internal surfaces 3 formations, and external diameter is greater than the diameter 4-8mm of the through hole 3a of radiator 2 internal surfaces 3 formations; Groove structure 1d, 4a be fixed seal ring 5a, 5b respectively, is positioned at the two ends up and down of through hole 3a;
The wide m1 of groove structure 1d, 4a is 3-6mm, and dark n1 is 2-3mm.
Protectiveness fixture in described radiator anodic oxidation, its described upper cover plate 1, lower cover 4, trip bolt 6a, 6b are made by titanium alloy; The material of fixed seal ring 5a, 5b is silicon rubber;
The columnar projections 1a diameter d 2 of upper cover plate 1 is 8-12mm, and screw hole dimensions d1 is M5-M8; Screw thread 1c length L is 20-25mm;
The thread size d3 of trip bolt 6a, 6b is M3-M6, and length L 1 is 5mm at least in fastening screw 2a, the 2b on precession radiator 2 upper and lower surfaces;
Fixed seal ring 5 cross sections are rectangle, width m=m1-0.1mm, height n=n1+3mm; The internal diameter of sealing-ring 5 is greater than the internal diameter 0-0.1mm of groove structure 1d, 4a.
Protectiveness fixture in described radiator anodic oxidation, when it uses, a) be rotated with up and down a plurality of trip bolt 6a, 6b and up and down a plurality of fastening screw 2a, 2b, upper cover plate 1, lower cover 4 are fixed in radiator 2 upper and lower ends, the through hole 3a up and down two-port that clamp, sealing consists of in radiator internal surface 3; B) by two fixed seal ring 5a, 5b, through hole 3a is sealed; C) be connected to by screw thread 1c the positive pole that external power is used in anodic oxidation with titanium alloy bar; D) then put into electrolyzer, oxide treatment is carried out in energising.
Protectiveness fixture in described radiator anodic oxidation in its described a) step, after trip bolt 6a is tightened onto fastening screw 2a, forms the good conductive path between upper cover plate 1 and radiator 2.
Protectiveness fixture in described radiator anodic oxidation; its described b) step; when radiator 2 carries out anodic oxidation; two fixed seal ring 5a, 5b can stop cell liquid to enter into radiator internal surface 3 places, and protection radiator internal surface 3 is not polluted, destroys by cell liquid.
The beneficial effect of the protectiveness fixture in space travelling wave tube radiator of the present invention anodic oxidation is:
1, in the radiator anode oxidation process, can to the radiator internal surface not cause stained, destroy, be connected with soldering between space travelling wave tube for follow-up radiator and provide safeguard;
2, this sleeve clamp can not cause detrimentally affect to the radiator anode oxidation process;
3, this sleeve clamp can be repeatedly used;
4, these sleeve clamp loading and unloading are convenient, reliable, and cost is low, is fit to large-scale production.
Description of drawings
Fig. 1 is that the protectiveness fixture in space travelling wave tube radiator of the present invention anodic oxidation is arranged on the schematic diagram on radiator;
Fig. 2 a is upper cover plate 1 structural representation of the present invention;
Fig. 2 b is upper cover plate 1 cross-sectional view of the present invention;
Fig. 3 a is lower cover 4 structural representations of the present invention;
Fig. 3 b is lower cover 4 cross-sectional view of the present invention;
Fig. 4 a is sealing-ring 5 structural representations of the present invention;
Fig. 4 b is sealing-ring 5 cross-sectional view of the present invention;
Fig. 5 is trip bolt 6 structural representations of the present invention;
Fig. 6 a is radiator 2 surface structure schematic diagram of the present invention;
Fig. 6 b is radiator 2 lower surface configuration schematic diagram of the present invention.
Embodiment
The present invention as shown in Figure 1, for the protectiveness fixture that uses in anodic oxidation is arranged on schematic diagram on radiator, wherein: the protectiveness fixture comprises upper cover plate 1; Lower cover 4; Sealing-ring 5; Trip bolt 6.Tabular upper cover plate 1 is overlying on through hole 3a top, upper cover plate 1 upper surface middle part has a columnar projections 1a, one central blind hole 1b is arranged at columnar projections 1a top, and blind hole 1b inwall has screw thread 1c, uses titanium alloy bar can be connected to by screw thread 1c the positive pole that external power is used in anodic oxidation; Upper cover plate 1 lower surface has a circle groove structure 1d, groove structure 1d internal diameter is less than the diameter 2-4mm of the through hole 3a of radiator 2 internal surfaces 3 formations, external diameter is greater than the diameter 4-7mm of the through hole 3a of radiator 2 internal surfaces 3 formations, and groove structure 1d is used for fixing sealing-ring 5a; Circumferential uniform 4 the through hole 1e of upper cover plate 1, radiator 2 upper surfaces circumferentially are evenly equipped with 4 fastening screw 2a, upper cover plate 1 is affixed by trip bolt 6a and radiator 2 upper ends, and fastening screw 2a and the trip bolt 6a of the through hole 1e on upper cover plate 1, radiator 2 upper surfaces are suitable.
Tabular lower cover 4 is overlying on through hole 3a below, lower cover 4 upper surfaces have a circle groove structure 4a, groove structure 4a internal diameter is less than the diameter 2-4mm of the through hole 3a of radiator 2 internal surfaces 3 formations, and external diameter is greater than the diameter 4-7mm of the through hole 3a of radiator 2 internal surfaces 3 formations.Groove structure 4a fixed seal ring 5b is positioned at the lower end of through hole 3a.Groove structure 4a is used for fixing sealing-ring 5b; Circumferential uniform 4 the through hole 4b of lower cover 4, radiator 2 lower surfaces circumferentially are evenly equipped with 4 fastening screw 2b, lower cover 4 is affixed by trip bolt 6b and radiator 2 lower ends, and fastening screw 2b and the trip bolt 6b of the through hole 4b on lower cover 4, radiator 2 lower surfaces are suitable.
Fig. 2 a is upper cover plate 1 structural representation of the present invention; Fig. 2 b is upper cover plate 1 cross-sectional view of the present invention; Fig. 3 a is lower cover 4 structural representations of the present invention; Fig. 3 b is lower cover 4 cross-sectional view of the present invention; Fig. 4 a is sealing-ring 5 structural representations of the present invention; Fig. 4 b is sealing-ring 5 cross-sectional view of the present invention; Fig. 5 is trip bolt 6 structural representations of the present invention; Fig. 6 a is radiator 2 surface structure schematic diagram of the present invention; Fig. 6 b is radiator 2 lower surface configuration schematic diagram of the present invention.
During use, be rotated with up and down a plurality of trip bolt 6a, 6b and up and down a plurality of fastening screw 2a, 2b, upper cover plate 1, lower cover 4 are fixed in radiator 2 upper and lower ends, the through hole 3a up and down two-port that clamp, sealing consists of in radiator internal surface 3 is sealed through hole 3a by two fixed seal ring 5a, 5b.Be connected to anodic oxidation with the positive pole of external power with titanium alloy bar by screw thread 1c, then put into electrolyzer, oxide treatment is carried out in energising.
When radiator carried out anodic oxidation, two fixed seal ring 5a, 5b can stop cell liquid to enter into internal surface 3 places of radiator 2, do not polluted, destroyed by cell liquid thereby reach protection radiator 2 internal surfaces 3.Simultaneously, trip bolt 6a is fixed on upper cover plate 1 function of radiator 2 upper ends except having, and also has the effect that forms the good conductive path between upper cover plate 1 and radiator 2.
For the low temperature brazing between adaptive radiation scatterer 2 and space travelling wave tube collector, at first the internal surface 3 of radiator 2 carried out surface treatment, afterwards sealing-ring 5 is respectively fixed in the groove of upper cover plate 1 and lower cover 4, afterwards upper cover plate 1 and lower cover 4 are fixed to the two ends of radiator 2 by trip bolt 6, complete the assembling of radiator 2 anodic oxidation fixtures.Next use titanium alloy bar by the screw thread on upper cover plate 1, radiator 2 to be connected to anodic oxidation with on the external power positive pole, begin radiator 2 is carried out anodic oxidation treatment.
By the protectiveness fixture in space travelling wave tube radiator of the present invention anodic oxidation, the cell liquid that uses in anode oxidation process can not be immersed in internal surface 3 places of radiator 2.And in whole anode oxidation process, upper cover plate 1, lower cover 4, sealing-ring 5, trip bolt 6, on the one hand hardly with cell liquid generation chemical reaction, make like this them can both repeat recycling, their existence can not affect normally carrying out of anode oxidation process yet on the other hand.Protectiveness cramp assembling and disassembling in space travelling wave tube radiator of the present invention anodic oxidation is convenient, reliable, and cost is low, is fit to large-scale production.
Claims (6)
1. the protectiveness fixture in space travelling wave tube radiator anodic oxidation, is characterized in that, comprises upper cover plate (1); Lower cover (4); Sealing-ring (5); Trip bolt (6); Wherein:
Tabular upper cover plate (1) upper surface middle part has a columnar projections (1a), one central blind hole (1b) is arranged at columnar projections (1a) top, blind hole (1b) inwall has screw thread (1c), is connected to by screw thread (1c) positive pole that external power is used in anodic oxidation; Upper cover plate (1) lower surface has a circle groove structure (1d), and sealing-ring (5a) is arranged in groove structure (1d); Upper cover plate (1) is uniform 4 through holes (1e) circumferentially, radiator (2) upper surface circumferentially is evenly equipped with 4 fastening screws (2a), upper cover plate (1) is affixed by trip bolt (6a) and radiator (2) upper end, and the fastening screw (2a) of the through hole (1e) of upper cover plate (1), radiator (2) upper surface is suitable with trip bolt (6a);
Tabular lower cover (4) upper surface has a circle groove structure (4a), sealing-ring (5b) is arranged in groove structure (4a), lower cover (4) is uniform 4 through holes (4b) circumferentially, radiator (2) lower surface circumferentially is evenly equipped with 4 fastening screws (2b), lower cover (4) is affixed by trip bolt (6b) and radiator (2) lower end, and the fastening screw (2b) of the through hole (4b) of lower cover (4), radiator (2) lower surface is suitable with trip bolt (6b);
Tabular upper cover plate (1), tabular lower cover (4) thickness H are 5-8mm.
2. the protectiveness fixture in radiator anodic oxidation as claimed in claim 1, it is characterized in that, the groove structure (1d) of described upper cover plate (1) lower surface, or the groove structure (4a) of lower cover (4) upper surface, the internal diameter of groove structure (1d, 4a) is less than the diameter 2-4mm of the through hole (3a) of radiator (2) internal surface (3) formation, and external diameter is greater than the diameter 4-8mm of the through hole (3a) of radiator (2) internal surface (3) formation; Groove structure (1d, 4a) is fixed seal ring (5a, 5b) respectively, is positioned at the two ends up and down of through hole (3a);
The wide m1 of groove structure (1d, 4a) is 3-6mm, and dark n1 is 2-3mm.
3. the protectiveness fixture in radiator anodic oxidation as claimed in claim 1, is characterized in that, described upper cover plate (1), lower cover (4), trip bolt (6a, 6b) are made by titanium alloy; The material of fixed seal ring (5a, 5b) is silicon rubber;
Columnar projections (1a) diameter d 2 of upper cover plate (1) is 8-12mm, and screw hole dimensions d1 is M5-M8; Screw thread (1c) length L is 20-25mm;
The thread size d3 of trip bolt (6a, 6b) is M3-M6, and length L 1 is 5mm at least in the fastening screw (2a, 2b) on the upper and lower surface of precession radiator (2);
Fixed seal ring (5) cross section is rectangle, width m=m1-0.1mm, height n=n1+3mm; The internal diameter of sealing-ring (5) is greater than the internal diameter 0-0.1mm of groove structure (1d, 4a).
4. the protectiveness fixture in radiator anodic oxidation as claimed in claim 1, it is characterized in that, during use, a) be rotated with a plurality of trip bolts in up and down (6a, 6b) and up and down a plurality of fastening screws (2a, 2b), upper cover plate (1), lower cover (4) are fixed in radiator (2) upper and lower ends, through hole (3a) the up and down two-port that clamp, sealing consists of in radiator internal surface (3); B) by two fixed seal rings (5a, 5b), through hole (3a) is sealed; C) be connected to by screw thread (1c) positive pole that external power is used in anodic oxidation with titanium alloy bar; D) then put into electrolyzer, oxide treatment is carried out in energising.
5. the protectiveness fixture in radiator anodic oxidation as claimed in claim 4; it is characterized in that; in the described a) step, after trip bolt (6a) is tightened onto fastening screw (2a), form the good conductive path between upper cover plate (1) and radiator (2).
6. the protectiveness fixture in radiator anodic oxidation as claimed in claim 4; it is characterized in that; described b) step; when radiator (2) carries out anodic oxidation; two fixed seal rings (5a, 5b) prevention cell liquid enters into radiator internal surface (3) and locates, and protection radiator internal surface (3) is not polluted, destroys by cell liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104144357A CN103160901A (en) | 2011-12-13 | 2011-12-13 | Protective fixture for anode oxidation of radiation radiator of space travelling wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104144357A CN103160901A (en) | 2011-12-13 | 2011-12-13 | Protective fixture for anode oxidation of radiation radiator of space travelling wave tube |
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| CN103160901A true CN103160901A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104144357A Pending CN103160901A (en) | 2011-12-13 | 2011-12-13 | Protective fixture for anode oxidation of radiation radiator of space travelling wave tube |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480504A (en) * | 2014-11-20 | 2015-04-01 | 浙江西田机械有限公司 | Vortex wall oxidation device |
| CN105762047A (en) * | 2016-04-14 | 2016-07-13 | 中国科学院电子学研究所 | Space traveling wave tube, collector thereof and preparation method of the connector |
| CN109267138A (en) * | 2018-11-27 | 2019-01-25 | 沈阳航天新光集团有限公司 | A kind of method of titanium alloy local anodeization protection |
| CN112610698A (en) * | 2020-11-17 | 2021-04-06 | 北京星航机电装备有限公司 | Self-inflating sealing ring, cylinder section clamping tool, inner wall protection and local oxidation method |
| US11535948B1 (en) * | 2022-01-28 | 2022-12-27 | Michael Fuschetti | Assemblies and methods for anodizing a workpiece selectively using a combination of a mechanical mask and a gas bubble or air pocket mask |
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| CN201280602Y (en) * | 2008-10-23 | 2009-07-29 | 成都飞机工业（集团）有限责任公司 | End face electroplating fixture for lining type part |
| CN102041530A (en) * | 2009-10-13 | 2011-05-04 | 深圳国宝造币有限公司 | Protective clamp for local metal plating of workpiece and cyanide-free gold plating method thereof |
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Patent Citations (3)
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| CN1166461A (en) * | 1997-03-18 | 1997-12-03 | 中国科学院上海技术物理研究所 | Manufacture of thin-wall curved metal mirror |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480504A (en) * | 2014-11-20 | 2015-04-01 | 浙江西田机械有限公司 | Vortex wall oxidation device |
| CN105762047A (en) * | 2016-04-14 | 2016-07-13 | 中国科学院电子学研究所 | Space traveling wave tube, collector thereof and preparation method of the connector |
| CN109267138A (en) * | 2018-11-27 | 2019-01-25 | 沈阳航天新光集团有限公司 | A kind of method of titanium alloy local anodeization protection |
| CN112610698A (en) * | 2020-11-17 | 2021-04-06 | 北京星航机电装备有限公司 | Self-inflating sealing ring, cylinder section clamping tool, inner wall protection and local oxidation method |
| CN112610698B (en) * | 2020-11-17 | 2023-02-24 | 北京星航机电装备有限公司 | Self-inflating sealing ring, cylinder section clamping tool, inner wall protection and local oxidation method |
| US11535948B1 (en) * | 2022-01-28 | 2022-12-27 | Michael Fuschetti | Assemblies and methods for anodizing a workpiece selectively using a combination of a mechanical mask and a gas bubble or air pocket mask |
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Application publication date: 20130619 |