CN106735796A - A kind of ion thruster gate electrode feature burr removing method - Google Patents
A kind of ion thruster gate electrode feature burr removing method Download PDFInfo
- Publication number
- CN106735796A CN106735796A CN201611118159.9A CN201611118159A CN106735796A CN 106735796 A CN106735796 A CN 106735796A CN 201611118159 A CN201611118159 A CN 201611118159A CN 106735796 A CN106735796 A CN 106735796A
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- Prior art keywords
- thruster
- ion
- grid
- model machine
- gate electrode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/003—Scarfing, desurfacing or deburring
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a kind of ion thruster gate electrode feature burr removing method, belong to space technology and electric vacuum technology field.Methods described is tested vacuum system, is constituted for power distribution and air supply system by ion thruster model machine, pending grid, thruster.Method of the methods described by being biased in grid, grid is attracted to by the ion in arc chamber plasma, point discharge sparking is drawn on grid, and then eliminate the burr that grid is left in pre-treatment process.Grid burr is that electric arc occurs between causing thruster grid in the work of thruster product, causes short circuit, in addition grid ablation adhesion main cause, therefore before grid is assembled into thruster product, carry out eliminating burr treatment, thruster reliability and security can be improved.
Description
Technical field
The invention belongs to space technology and electric vacuum technology field, and in particular to a kind of ion thruster gate electrode feature unhairing
Thorn method, the method is applied to the treatment that grid assembles normal-gate part.
Background technology
Electric propulsion technology has obtained extensively should as a kind of advanced spacemarching in each application field of space
With, including the holding of gesture stability, north-south position, Orbit Transformation, atmospheric damping compensation, survey of deep space promote mainly into etc..Especially in depth
In empty detection mission, the features such as electric propulsion technology is with its high specific impulse, long-life, propellant carrying amount can be greatlyd save, increased
Spacecraft payload ratio, with very strong advantage.
Grid assembly is one of crucial parts of ion thruster, and its function is aggregation and high speed educt beaming flow.The work(
The realization of energy needs the generation high electric field in two gate electrode features, that is, need small grid spacing and high voltage.General ion thruster
Grid are smaller than 1mm, and thruster beam voltage of the specific impulse higher than 3000s is higher than 1kW.Under electric field so high, if grid zero
There is burr or fifth wheel in part, when thruster works, often cause gate discharge, cause short circuit, or even grid ablation to glue
Even, thruster cisco unity malfunction or damage are caused.Therefore in order to improve thruster reliability, need to carry out unhairing before grid assembling
Thorn treatment, eliminates the burr and fifth wheel left in grid process.The electrochemical deburring method for using at present, because of burr
Not of uniform size, the removal time is difficult to determine, there is a problem of that thorough or grid does not cause corrosion, the serious shadow of the operation for burr removal
The fabrication yield of ion thruster grid is rung.
The content of the invention
The technical problems to be solved by the invention are directed to shortcoming of the prior art and provide a kind of ion thruster grid
Pole part burr removing method, the inventive method causes point discharge to remove grid early stage using thruster model machine in gate electrode feature
The burr left in processing, reduces and struck sparks the frequency and duration between grid assembly when thruster works, and improves thruster reliability
Property and security.
Technical problem of the invention is solved to adopt the following technical scheme that：
A kind of ion thruster gate electrode feature burr removing method, using back bias voltage by the ion in thruster arc chamber plasma
It is led to that pending gate surface causes the method for point discharge to remove the burr and surface contaminant left in grid process.
A kind of ion thruster gate electrode feature burr removing method, non-grid component is assembled to using pending gate electrode feature
On ion thruster model machine, and the current potential of pending grid assembly is set to negative potential relative to ion thruster arc chamber, used
In attraction ion, and ion thruster model machine is set to positive potential with respect to nacelle, the ion for grid to be drawn quickly is caused
Nacelle is neutralized.
The current potential of the grid assembly is 20-30V relative to the negative bias current potential that ion thruster arc chamber is put.
The ion thruster model machine is set to the position on schedule of 15-25V with respect to nacelle.
A kind of ion thruster gate electrode feature burr removing method, the method is true by ion thruster model machine, thruster test
Empty set system, thruster realize that ion thruster model machine causes tip for pending grid is provided for power distribution and air supply system
The electric charge of electric discharge；Thruster test system, for power distribution and air supply system for thruster work produces plasma to provide bar
Part；Pending gate electrode feature is assembled on the thruster model machine of non-grid component, and the current potential of pending gate electrode feature is relative
Negative bias current potential is set in ion thruster model machine arc chamber, for attracting ion, ion is accumulated in pending gate surface,
Point discharge is realized, the negative bias current potential is provided by thruster for the gate bias supplies in power distribution, thruster supplies distribution
Heating Cathode Source in power supply is used to heat emission of cathode electronics, for the electric discharge of ion thruster model machine arc chamber provides originally electricity
Son；Thruster is touched for the negative electrode in power distribution and holds power supply for negative electrode self-maintained discharge provides energy；Thruster is in power distribution
Anode supply for ion thruster model machine arc chamber work produce plasma discharge power supply is provided；Thruster supplies power distribution
In gate bias supplies be positive potential with respect to nacelle by ion thruster model machine, the ion for grid to be drawn quickly causes
Nacelle is simultaneously neutralized, and thruster tests vacuum system for ion thruster model machine electric discharge work provides vacuum condition.
A kind of ion thruster gate electrode feature burr removing method of the present invention, by the side being biased in grid
Method, grid is attracted to by the ion in arc chamber plasma, and point discharge sparking is drawn on grid, former using point discharge
The burr left in reason removal grid early stage processing, reduces and struck sparks the frequency and duration between grid assembly when thruster works.
Grid burr is that electric arc occurs between causing thruster grid in the work of thruster product, causes short circuit, or even grid ablation adhesion
Main cause, so before grid is assembled into thruster product, carry out eliminating burr treatment, thruster reliability and peace can be improved
Quan Xing.A kind of ion thruster gate electrode feature burr removing method that the patent is proposed, experiment proves that：Method is feasible, removal effect
Fruit is obvious, while not causing any damage to grid.
Brief description of the drawings
The gate electrode feature burr removing method of Fig. 1 ion thrusters is for matching somebody with somebody electrical schematic.
Specific embodiment
The present invention, but not limited to this are further illustrated below in conjunction with the drawings and specific embodiments.
As shown in figure 1, a kind of ion thruster gate electrode feature burr removing method, nothing is assembled to using pending gate electrode feature
On the ion thruster model machine of grid assembly, and the current potential of pending grid assembly is set to relative to ion thruster arc chamber
Ion in thruster arc chamber plasma is led to that pending gate surface causes point discharge by negative potential, back bias voltage, is used
In attraction ion, and ion thruster model machine is set to position on schedule with respect to nacelle, the ion for grid to be drawn quickly is caused
Nacelle is neutralized, the burr and surface contaminant left in removal grid process.The method is by ion thruster model machine, thrust
Device test vacuum system, thruster realize that ion thruster model machine is provided for pending grid for power distribution and air supply system
Cause the electric charge of point discharge；Thruster test system, it is that thruster work produces plasma for power distribution and air supply system
Body provides condition；Pending gate electrode feature is assembled on the thruster model machine of non-grid component, and by pending gate electrode feature
Current potential is set to 20-30V negative bias current potentials relative to ion thruster model machine arc chamber, for attracting ion, makes ion wait to locate
Reason gate surface accumulation, realizes point discharge, and the negative bias current potential is carried by thruster for the gate bias supplies in power distribution
For thruster is used to heat emission of cathode electronics for the Heating Cathode Source in power distribution, is the electric discharge of ion thruster model machine
Room electric discharge provides primary electron；Thruster is touched for the negative electrode in power distribution and holds power supply for negative electrode self-maintained discharge provides energy；Push away
Power device is for the anode supply in power distribution for the work of ion thruster model machine arc chamber produces plasma to provide discharge power supply；
Ion thruster model machine nacelle relatively is 15-25V positive potentials for the gate bias supplies in power distribution by thruster, for inciting somebody to action
The ion that grid is drawn quickly causes nacelle and neutralizes, and thruster tests vacuum system for ion thruster model machine electric discharge work is carried
For vacuum condition.
The present invention include but is not limited to above example, it is every carried out under the principle of spirit of the present invention it is any equivalent
Replace or local improvement, all will be regarded as within protection scope of the present invention.
Claims (5)
1. a kind of ion thruster gate electrode feature burr removing method, it is characterised in that：Using back bias voltage by thruster arc chamber etc.
Ion in gas ions is led to that pending gate surface causes the method for point discharge to remove the hair left in grid process
Thorn and surface contaminant.
2. a kind of ion thruster gate electrode feature burr removing method according to claim 1, it is characterised in that：Using waiting to locate
Reason gate electrode feature be assembled on the ion thruster model machine of non-grid component, and by the current potential of pending grid assembly relative to from
Sub- thruster arc chamber is set to negative potential, for attracting ion, and ion thruster model machine is set into position on schedule with respect to nacelle, uses
Nacelle is quickly caused in the ion for drawing grid to neutralize.
3. a kind of ion thruster gate electrode feature burr removing method according to claim 1 and 2, it is characterised in that：It is described
The current potential of grid assembly is 20-30V relative to the negative bias current potential that ion thruster arc chamber is put.
4. a kind of ion thruster gate electrode feature burr removing method according to claim 3, it is characterised in that：The ion
Thruster model machine is set to the positive potential of 15-25V with respect to nacelle.
5. a kind of ion thruster gate electrode feature burr removing method according to claim 1 or 4, it is characterised in that：The party
Method is by ion thruster model machine, thruster test vacuum system, thruster for power distribution and air supply system realization, ion thrust
Device model machine provides the electric charge for causing point discharge for pending grid；Thruster test system, for power distribution and air supply system
For thruster work produces plasma to provide condition；Pending gate electrode feature is assembled to the thruster model machine of non-grid component
On, and the current potential of pending gate electrode feature is set to negative bias current potential relative to ion thruster model machine arc chamber, for attracting
Ion, makes ion be accumulated in pending gate surface, realizes point discharge, and the negative bias current potential is by thruster in power distribution
Gate bias supplies provide, thruster is used to heat emission of cathode electronics for the Heating Cathode Source in power distribution, be from
Sub- thruster model machine arc chamber electric discharge provides primary electron；Thruster is touched for the negative electrode in power distribution holds power supply for negative electrode is controlled oneself
Electric discharge provides energy；Thruster is for the anode supply in power distribution for the work of ion thruster model machine arc chamber produces plasma
Body provides discharge power supply；Ion thruster model machine is positive electricity with respect to nacelle for the gate bias supplies in power distribution by thruster
Position, the ion for grid to be drawn quickly causes nacelle and neutralizes, and thruster test vacuum system is ion thruster model machine
Electric discharge work provides vacuum condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118159.9A CN106735796A (en) | 2016-12-07 | 2016-12-07 | A kind of ion thruster gate electrode feature burr removing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118159.9A CN106735796A (en) | 2016-12-07 | 2016-12-07 | A kind of ion thruster gate electrode feature burr removing method |
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| Publication Number | Publication Date |
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| CN106735796A true CN106735796A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611118159.9A Pending CN106735796A (en) | 2016-12-07 | 2016-12-07 | A kind of ion thruster gate electrode feature burr removing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871574A (en) * | 2022-05-27 | 2022-08-09 | 华中科技大学 | Microwave-assisted device for removing burrs on surface of laser cutting part |
Citations (5)
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|---|---|---|---|---|
| JPH08134673A (en) * | 1994-11-08 | 1996-05-28 | I N R Kenkyusho:Kk | Cleaning and deburring method and device therefor |
| JP2001084900A (en) * | 1999-09-13 | 2001-03-30 | Hitachi Ltd | Machining method of fixed diaphragm of focused ion beam machining monitoring device |
| CN103258710A (en) * | 2013-05-14 | 2013-08-21 | 哈尔滨工业大学 | Carborundum sealing ring part machining method through atmosphere plasma formed electrode |
| CN204564665U (en) * | 2015-01-24 | 2015-08-19 | 杭州中塑包装材料有限公司 | A kind of film surface cleaning device |
| CN204866197U (en) * | 2015-07-30 | 2015-12-16 | 上海华闵环境科技发展有限公司 | Low temperature plasma oil smoke peculiar smell purifier is discharged in low latitude |
-
2016
- 2016-12-07 CN CN201611118159.9A patent/CN106735796A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08134673A (en) * | 1994-11-08 | 1996-05-28 | I N R Kenkyusho:Kk | Cleaning and deburring method and device therefor |
| JP2001084900A (en) * | 1999-09-13 | 2001-03-30 | Hitachi Ltd | Machining method of fixed diaphragm of focused ion beam machining monitoring device |
| CN103258710A (en) * | 2013-05-14 | 2013-08-21 | 哈尔滨工业大学 | Carborundum sealing ring part machining method through atmosphere plasma formed electrode |
| CN204564665U (en) * | 2015-01-24 | 2015-08-19 | 杭州中塑包装材料有限公司 | A kind of film surface cleaning device |
| CN204866197U (en) * | 2015-07-30 | 2015-12-16 | 上海华闵环境科技发展有限公司 | Low temperature plasma oil smoke peculiar smell purifier is discharged in low latitude |
Non-Patent Citations (1)
| Title |
|---|
| 王少宁等: "离子推力器栅极放电分析和保护设计", 《航天器工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871574A (en) * | 2022-05-27 | 2022-08-09 | 华中科技大学 | Microwave-assisted device for removing burrs on surface of laser cutting part |
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Application publication date: 20170531 |
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