Lihlahisoa tsa EMI Shielding
EMI shielding conductive elastomer gasket
tlhaloso2
Ts'ebetso ea tlhahiso: Elastomer e bōpiloeng le e fetisitsoeng
Lihlahisoa tsa EMI tse sireletsang elastomer li entsoe haholo-holo ka ho bopa le extrusion.
Chate e tsamaisang elastomer molding (extrusion) process flow chart:
Ka ts'ebetso ea ho bopa, EMI e thibelang elastomer e ka etsoa ho ba maqephe a rabara a tsamaisang ka botlalo, li-gaskets le li-gaskets tse kopaneng tsa rabara. Li-gaskets li ka sebetsoa ka libopeho tse fapaneng ho latela litšoantšo. Ka ts'ebetso ea extrusion, EMI e thibelang elastomer e ka etsoa ka likhoele tse fapaneng tse tsoelang pele tsa likhoele tsa rabara tse tsamaisang ka botlalo le likhoele tse kopaneng tsa rabara. Likarolo tse fapaneng tsa lihlopha li kenyelletsa li-rectangular, chitja, "D" -shaped, "U" -shaped, "P" -shaped, "M" -shaped, "B" -shaped, sekoti "B" -shaped, le mefuta e sa tšoaneng e nang le marako a tšesaane, kapa li-loops tse koetsoeng tsa libopeho tse sa tšoaneng li ka etsoa ka ho toba ho tloha k'hamphaning.
Thepa e ka sehloohong ea tlhahiso e kenyelletsa motsoako oa ka hare, motsoako o bulehileng, extruder, flat vulcanizer.
Mofuta oa EMI o sireletsang conductive elastomer
EMI shielding conductive elastomer mold gasket
Li-gaskets tsa conductive ke lihlahisoa tse bōpiloeng 'me li ka aroloa ka lipoleiti, li-gaskets, li-gaskets tsa O-rings, li-waveguide flange gaskets, le li-gaskets tse nang le sebōpeho se khethehileng ho ea ka mefuta ea tsona ea sebopeho.
- Likaroloana￭Restivity e tlase ea molumo
￭Tšireletso e phahameng ea electromagnetic
￭Matla a phahameng a tsitsipano le bolelele nakong ea khefu
￭Mocheso o pharaletseng oa ho sebetsa
￭Khanyetso e ntle ea kutu
￭Bophelo bo bolelele ba tšebeletso
EMI e sireletsang li-elastomer tsa extruded gaskets
Li-strip tsa conductive li na le litšobotsi tse fokolang haholo, deformation e phahameng ea compression, bolelele bo tsoelang pele le ho itšeha ka mokhoa o sa reroang. Ka moralo oa meaho e fapaneng ea likarolo tse fapaneng, deformation ea compression ea thepa lipakeng tsa ntlo ea karolo ea elektroniki e ka fetoloa ho kopana le lits'ebetso tsa kopano ea boenjiniere libakeng tse fapaneng. Li-conductive strips ke lihlahisoa tse entsoeng ka mokhoa o le mong oa extrusion, 'me mefuta ea tsona ea sebopeho e ka aroloa ho ba tse tiileng le tse se nang letho. Haholo-holo li kenyelletsa: e tiileng e bōpehileng joaloka O, e tiileng e khutlonnetsepa, e tiileng e bōpehileng joaloka D, sekoti se bōpehileng joaloka O, sekoti se sekoti, se nang le sebopeho sa P, se nang le sekoti sa D, sebopeho sa U, joalo-joalo.
- Likaroloana:￭Ts'ebetso e ntle ea motlakase
￭Bolelele bo sa khaotseng 'me bo ka khaoloa ka thato￭E hanyetsanang le mongobo le mocheso￭Bophelo bo bolelele ba tšebeletso￭Boikemisetso bo phahameng ba ho sireletsa￭Mocheso o pharaletseng oa ho sebetsa￭Khanyetso e ntle ea kutu
EMI e sireletsa li-gaskets tse tiisang elastomer
Conductive elastomer sealing e entsoe ka ho kopanya likarolo tse tsamaisang le tse sa sebetseng ka mokhoa o ikhethileng. Karolo ea conductive e etsa hore thepa e be le conductivity e ntle, ha karolo e sa tsitsang e sa tsitsang e etsa hore thepa e be le ts'ebetso e ntle ea ho tiisa mouoane oa metsi. Matla a matla a tlamahano pakeng tsa likarolo tse peli a etsa hore ho be thata ho ebola lera la sebopeho sa thepa. Composite conductive rabara e na le bokhoni bo botle ba ho hatella, 'me moralo oa eona o khethehileng o e etsa hore e be le khanyetso e ntle ea letsoai le ho hanyetsa hlobo.
- Likaroloana￭Boima bo tlase
￭Sete e ntle ea compression le thepa ea ho tiisa mouoane oa metsi
￭Kopana le boemo bo phahameng bo sa keneleng metsi le ts'ebetso e ntle ea tšireletso ea motlakase
￭Matla a matle a tensile le bolelele nakong ea khefu
￭Khatello e phahameng, ho fihla ho 15% ho isa ho 60%
￭Ho bonolo ho hatella le ho kenya
￭Mocheso o pharaletseng oa ho sebetsa
￭Khanyetso e ntle ea kutu
￭Bophelo bo bolelele ba tšebeletso
Khetho ea lisebelisoa tsa rabara tse tsamaisang
Silivera e hloekileng le rabara ea silicone: anti-mold, e loketseng maemo a thibelang kholo ea likokoana-hloko, e nang le ts'ebetso e ntle ka ho fetisisa ea tšireletso le conductivity, le thepa e ntle ea 'mele.
Rabara e entsoeng ka silevera e entsoeng ka khalase le silicone: tekanyo e ntle ka ho fetisisa ea theko ea ts'ebetso, e loketseng sebaka sa puisano le liketsahalo tse tloaelehileng tsa sesole, le ts'ebetso e ntle libakeng tse sa senyeheng.
Copper silver-plated & silicone rabara: conductivity e ntle ka ho fetisisa, e hanyetsanang le tšusumetso ea EMP, e loketseng liketsahalo tsa sesole, 'me e ka sebelisoa e le gasket bakeng sa li-waveguides le li-connectors.
Aluminium silver-plated & silicone rabara: ts'ebetso e phahameng ea tšireletso, electrochemically e tsamaellana le chassis ea aluminium, li-gaskets tsa sesole li sebelisoa libakeng tse senyang, 'me li bobebe ka boima ba tsona,' me li sebelisoa haholo ha ho etsoa li-gaskets tse fapaneng tse sireletsang.
Aluminium silver-plated & fluorosilicone rabara: ts'ebetso e phahameng ea tšireletso, khanyetso e phahameng ea kutu, khanyetso e phahameng ea oli, e ka ntlafatsa haholo ho tšepahala le bophelo ba tšebeletso ea sehlahisoa.
Graphite nickel-plated & silicone rabara: theko e tlase, e lumellana hantle le electrochemical le aluminium, 'me e na le conductivity e phahameng le tiiso e ntle ea tikoloho, e ka sebelisoang lihlahisoa tsa sesole ka kakaretso.
Highly conductive carbon & silicone rabara: E fana ka tšireletso e tlaase-tlase, matla a matle a thata, e se nang kutu, e ka boloka thepa ea 'mele le ea motlakase holim'a mocheso o pharaletseng,' me e loketse ka ho fetisisa bakeng sa lits'ebetso tsa ho tsoa ha electrostatic kapa corona discharge.
Tekheniki Parameters
| Nomoro ea thepa ea rabara e tsamaisang | Mehato ea teko (mofuta oa teko) | 53 | 57 | 59 | 60 | 55 | 62 | 66 |
| Conductive filler | \ | silevera | Silevera/ Koporo | Silevera/Aluminium | Silevera/ Aluminium | Silevera/Khalase | Nickel/Khabone | khabone |
| Elastomer substrate | \ | Silicone | Silicone | Silicone | Fluorine Silicon Koporo | Silicone | Silicone | Silicone |
| Ho hanyetsa molumo, Ω cm, max, | SJ20673A-2016 | 0.002 | 0.004 | 0.008 | 0.008 | 0.01 | 0.1 | 1.0 |
| Ho thatafala (Lebopo A) | GB/T 531.1-2008 | 65±7 | 65±7 | 65±7 | 70±5 | 65±7 | 65±10 | 65±7 |
| Matla a khoheli a bonahalang (±0.25) | GB/T 533-2008 | 3.5 | 3.5 | 1.9 | 2.0 | 1.8 | 2.1 | 1.2 |
| Tensile Strength MPa, min. | GB/T 528-2009 | 2.07 | 1.38 | 1.38 | 1.24 | 1.03 | 1.03 | 3.8 |
| Elongation nakong ya khefu %min, kapa %min./max. | GB/T 528-2009 | 200/500 | 100/300 | 100/300 | 60/260 | 75 | 100 | 100 |
| Tear Matla kN/m.min | GB/T 529-2008 | 8.75 | 7 | 5.25 | 6.13 | 5.25 | 6.13 | - |
| Litlhophiso tsa compression, 70hrs@100℃,% max | GB/T 7759.1-2015 | 45 | 32 | 32 | 30 | 30 | 40 | 45 |
| Mocheso o tlase oa flexure TR10, ℃, min | JB 150.4A-2009 | -65 | -65 | -65 | -55 | -55 | -45 | -45 |
| Boholo ba tšebeliso e tsoelang pele mocheso , ℃ | GJB 150.3A-2009 | 160/200 | 125 | 160/200 | 160/200 | 160 | 150 | 200 |
Haeba o hloka lihlahisoa tse hlophisitsoeng le litšebeletso tsa setsebi, u se ke ua tsilatsila, ka kopo ikopanye le rona hang-hang!