CN104540345B - Antistatic box structure made of metal honeycomb core composite materials - Google Patents
Antistatic box structure made of metal honeycomb core composite materials Download PDFInfo
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- CN104540345B CN104540345B CN201410748270.0A CN201410748270A CN104540345B CN 104540345 B CN104540345 B CN 104540345B CN 201410748270 A CN201410748270 A CN 201410748270A CN 104540345 B CN104540345 B CN 104540345B
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- honeycomb core
- antistatic
- core composite
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Abstract
The invention discloses an antistatic box structure made of metal honeycomb core composite materials. After an antistatic structure is adopted in metal honeycomb core composite material single plates, the composite material single plates obtained after electric connectivity are connected through metal screws, oxidation films or epoxy glue preventing connectivity is polished away, and the antistatic box structure made of the metal honeycomb core composite materials is achieved. The antistatic box structure has the advantages that the insulation aim of a metal honeycomb core composite material box is achieved, and the electrostatic protection pressure of the surface and interior of a satellite is reduced.
Description
Technical field：
The present invention relates to a kind of metal honeycomb core composite material casing structure of antistatic, and in particular to a kind of antistatic
Carbon fiber skin aluminium honeycomb core composite material casing structure.
Background technology：
Geostationary orbit satellite, particularly geostationary orbit three-axle steady platform satellite, surface and inside are faced with
The electromagnetic interference problem of serious charging, electric discharge and correlation.When the insulator of inside satellite is by solar plasma ray
When direct effect is charged above the electric discharge marginal value of the insulant, static discharge phenomenon will occur.This electric discharge is existing
As the lighter can form interference to the Sensitive Apparatuses of surrounding, cause equipment operation irregularity；Severe one can then damage low-voltage device and sensitivity
Device, directly threatens the operation safety of equipment and satellite.
Measured data shows that the turn-on effect of composite structure surface and inside is generally not reaching to be expected requirement.Bury
Between part and embedded part there is very big uncertainty in conducting state, and maximum resistance can reach more than 100M Ω.This and satellite
Between any two embedded part of antistatic design specification requirement, resistance value is far apart less than the index of 10 Ω.
The content of the invention：
The present invention proposes a kind of metal honeycomb core composite material casing structure of antistatic, solves composite structure
The turn-on effect of surface and inside is generally not reaching to the problem of expected requirement.
In a kind of metal honeycomb core composite material casing structure of antistatic proposed by the present invention, the veneer of casing is anti-quiet
Electric structural veneer, the resistance value in plate between any embedded part are less than 10 Ω.The attachment structure of composite material casing plate and plate is shown in figure
1, conduction therein has：Metal embedded part 3, metallic screw component 4 (being made up of screw, plain cushion, spring washer), eyelid covering 2 in plate 1,
Metal side embedded part 7 in plate 28；It is nonconducting to have：The oxide-film outside epoxy glue or oxide-film, metal embedded part 3 outside eyelid covering 2
Deng.Plate 1 is connected by metallic screw component 4 with plate 28, but as metal embedded part 3 needs to carry out cementing anode before cementing
Oxidation processes, outside form one layer of nonconducting oxide-film, so that plate 1 will not 100% conducting with plate 28.Have once in a while
Screw just scratches oxide-film, just accidentally can turn on.
In antistatic body structure, the screw assembly contact site 5 on metal embedded part 3 is polished, removes oxide-film,
Conducting for plate one (1) and plate two (8) is realized using the electric conductivity of metallic screw component (4).By that analogy, led by plate plate
It is logical, realize that FCL is conducted, reach antistatic purpose of any embedded part conducting resistance of FCL less than 10 Ω.
When there is the plate that need not be dismantled to be connected with each other in casing, it will usually adopt and smear locking glue on the screw thread 6 of screw
Method replace spring washer in metallic screw component 4.General connection method does not control locking glue consumption, and locking glue can be in screw thread 6
Surface forms insulating barrier, causes plate 1 to insulate with plate 28.In antistatic body structure, the metallic screw group fixed with locking glue
Part 4, stays 1/3 metal not daub in 6 end of screw thread, realizes the effect of conducting.
In antistatic body structure, to the screw connecting mode being directly screwed on eyelid covering 2, the epoxy on eyelid covering 2 is polished off
Glue or oxide-film, make metallic screw component 4 and the carbon fiber or metal body conducting in eyelid covering 2, reach the effect of FCL conducting.
It is an advantage of the current invention that it solves the Insulation Problems of metal honeycomb core composite material casing, satellite table is alleviated
Face and the electrostatic defending pressure of inside.
Description of the drawings
Plate and plate connected mode of the Fig. 1 for composite material casing, wherein：1st, plate one；2nd, eyelid covering；3rd, metal embedded part；4th, gold
Category screw assembly (being made up of screw, plain cushion, spring washer), 5, screw assembly contact site；6th, screw thread；7th, metal side embedded part；8 plates
Two.
Specific embodiment
In general casing connected mode, the conducting of hampering plate and plate is on oxide-film and screw thread 6 outside metal embedded part 3
Locking glue.
Specific implementation step is as follows：
Oxide-film in 1 pair of metal embedded part 3 above screw assembly contact site 5 is polished, and removes the oxide-film on surface
(about several μ m-thicks), measures the resistance value on buffed surface and plate 1 between other embedded parts with circuit tester, then stops if less than 10 Ω
Polishing.
If 2 adopt locking glue, in 1/3 length range of 6 end of screw thread should not daub, measure metal spiral shell after being screwed at once
The conducting situation of screw assembly 4 and plate 28, if be not turned on, illustrates that glue in assembling process is extruded to the whole of screw thread 6.It is fast
Speed is back-outed metallic screw component 4, removes the glue that metal side embedded part 7 is remained above with ethanol, and replacing metallic screw component 4 is laid equal stress on
New clothes are matched somebody with somebody.
When 3 body structures having are assembled, metallic screw component 4 is directly screwed on eyelid covering 2, then polish off the epoxy on eyelid covering 2
Glue or oxide-film, can equally reach the effect of conducting.
Claims (1)
1. the metal honeycomb core composite material casing structure of a kind of antistatic, it is combined by the connection of electrostatic prevention structure veneer,
It is characterized in that connected mode is as follows between described electrostatic prevention structure veneer：
It is connected with metallic screw component (4) between plate one (1) and plate two (8) in described electrostatic prevention structure veneer, during connection pair
Being polished with metallic screw component (4) contact site (5) on metal embedded part (3), removes oxide-film, using metallic screw group
The electric conductivity of part (4) realizes conducting for plate one (1) and plate two (8)；Metallic screw component (4) if not adopting spring shim,
Use locking glue instead to fix, daub does not ensure that body structure is conducted to stay 1/3 metal in screw thread (6) end；
When described metallic screw component (4) is connected directly between on eyelid covering (2), the epoxy glue on eyelid covering (2) and oxidation are polished off
Film, makes metallic screw component (4) and the carbon fiber or metal body conducting in eyelid covering (2), reaches body structure overall conductance and lead to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748270.0A CN104540345B (en) | 2014-12-09 | 2014-12-09 | Antistatic box structure made of metal honeycomb core composite materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748270.0A CN104540345B (en) | 2014-12-09 | 2014-12-09 | Antistatic box structure made of metal honeycomb core composite materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104540345A CN104540345A (en) | 2015-04-22 |
| CN104540345B true CN104540345B (en) | 2017-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410748270.0A Active CN104540345B (en) | 2014-12-09 | 2014-12-09 | Antistatic box structure made of metal honeycomb core composite materials |
Country Status (1)
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264837B (en) * | 2017-05-18 | 2020-03-06 | 上海卫星工程研究所 | Space electrostatic discharge protection design method for large composite material truss of satellite |
| CN108854233A (en) * | 2018-07-04 | 2018-11-23 | 芜湖新世纪净化器材有限责任公司 | A kind of water purification catridge assembly bonding table top |
| CN109605783A (en) * | 2018-12-10 | 2019-04-12 | 河北汉光重工有限责任公司 | A method of solving composite material structural member conducting continuity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04270642A (en) * | 1991-02-06 | 1992-09-28 | Mitsubishi Electric Corp | Sandwich panel having embedded member |
| JPH11198259A (en) * | 1998-01-19 | 1999-07-27 | Mitsubishi Electric Corp | Sandwich panel |
| JP2000215929A (en) * | 1999-01-26 | 2000-08-04 | Mitsubishi Electric Corp | Insert for ground |
| CN102900499A (en) * | 2012-08-29 | 2013-01-30 | 无锡盛泽环保科技有限公司 | High-performance metal honeycomb carrier of catalyst for controlling exhaust emission |
| CN103612433A (en) * | 2013-09-29 | 2014-03-05 | 魏玲 | Metal honeycomb material used in aerospace and aircraft separation layer, and preparation method thereof |
| CN204335188U (en) * | 2014-12-09 | 2015-05-13 | 中国科学院上海技术物理研究所 | A kind of metal honeycomb core composite material body structure of antistatic |
-
2014
- 2014-12-09 CN CN201410748270.0A patent/CN104540345B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04270642A (en) * | 1991-02-06 | 1992-09-28 | Mitsubishi Electric Corp | Sandwich panel having embedded member |
| JPH11198259A (en) * | 1998-01-19 | 1999-07-27 | Mitsubishi Electric Corp | Sandwich panel |
| JP2000215929A (en) * | 1999-01-26 | 2000-08-04 | Mitsubishi Electric Corp | Insert for ground |
| CN102900499A (en) * | 2012-08-29 | 2013-01-30 | 无锡盛泽环保科技有限公司 | High-performance metal honeycomb carrier of catalyst for controlling exhaust emission |
| CN103612433A (en) * | 2013-09-29 | 2014-03-05 | 魏玲 | Metal honeycomb material used in aerospace and aircraft separation layer, and preparation method thereof |
| CN204335188U (en) * | 2014-12-09 | 2015-05-13 | 中国科学院上海技术物理研究所 | A kind of metal honeycomb core composite material body structure of antistatic |
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| CN104540345A (en) | 2015-04-22 |
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