Litiiso tsa oli tsa Polytetrafluoroethylene (PTFE)ke ditharollo tse tswetseng pele tsa ho kwala tse tsebahalang ka ho hanyetsa ha tsona dikhemikhale ka tsela e ikgethang, kgohlano e tlase, le bokgoni ba ho sebetsa maemong a feteletseng a mocheso. Ho fapana le di-elastomer tsa setso jwalo ka nitrile (NBR) kapa rabara ya fluorocarbon (FKM), ditiiso tsa PTFE di sebedisa thepa e ikgethang ya di-fluoropolymer ho fana ka tshepahalo e ke keng ya lekanngwa ditirisong tse hlokang thuso tsa indasteri. Sengolwa sena se hlahloba sebopeho, melemo le tshebediso ya niche ya ditiiso tsa oli tsa PTFE, ho rarolla dipotso tse tlwaelehileng mabapi le ho tlotsa, ho lemoha ho dutla ha metsi, nako ya bophelo, le tse ding.
## Lintlha tsa bohlokoa tsa ho nahana
Litiiso tsa oli tsa PTFELi atleha haholo libakeng tse thata ka lebaka la tlhaho ea tsona ea ho se arabele, mocheso o pharaletseng (-200°C ho isa ho +260°C), le ho hanyetsa lik'hemik'hale, mahlaseli a kotsi a letsatsi le botsofali.
Ho fapana lenitrilekapaLitiiso tsa FKM, PTFE ha e hloke setlolo lits'ebetsong tse ngata, e leng se fokotsang litšenyehelo tsa tlhokomelo.
Likopo tse tloaelehileng li kenyelletsa lienjene tsa likoloi, litsamaiso tsa lifofane, ts'ebetso ea lik'hemik'hale le mechini ea maemo a lijo.
Litiiso tsa PTFE li loketse liindasteri tse behang pele ts'ebetso e se nang tšilafalo, joalo ka meriana le li-semiconductor.
Ho kenya le ho khetha thepa ka nepo ho bohlokoa haholo bakeng sa ho eketsa nako ea bophelo, e ka fetangLilemo tse 10+maemong a matle ka ho fetisisa.
## Litiiso tsa Oli tsa PTFE ke Eng?
Tlhaloso le Sebopeho
Litiiso tsa oli tsa PTFE ke li-gasket tsa mechini tse etselitsoeng ho boloka mafura le ho tlosa litšila ka har'a li-shaft tse potolohang kapa tse pheta-phetoang. Sebopeho sa tsona hangata se kenyelletsa:
Molomo oa PTFE: Moeli oa ho koala o nang le khohlano e tlase o ikamahanyang le mefokolo ea shaft.
Sesebelisoa sa ho kenya sa selemo (sa boikhethelo): E ntlafatsa matla a radial bakeng sa lits'ebetso tse nang le khatello e phahameng.
Nyeoe ea Tšepe: Ntlo ea tšepe e sa ruseng kapa ea tšepe ea khabone bakeng sa botšepehi ba sebopeho.
Mehele e Khahlanong le ho Ntša: Thibela ho fetoha ha letlalo tlas'a khatello e matla.
Sebopeho sa limolek'hule tsa PTFE—mokokotlo oa khabone o tletseng liathomo tsa fluorine—se fana ka ho se sebetse hantle khahlanong le lik'hemik'hale tse batlang li le teng, ho kenyeletsoa li-acid, li-solvent le mafura. Bokaholimo ba eona bo boreleli haholo bo fokotsa ho tsofala le tahlehelo ea matla, e leng se etsang hore e be e loketseng ho tiisoa ka matla.
## PTFE khahlanong le Nitrile le FKM Oil Tiiso: Liphapang tsa Bohlokoa
| Thepa | PTFE | Nitrile (NBR) | FKM (Fluorocarbon) |
| Boemo ba Thempereichara | -200°C ho isa ho +260°C | -40°C ho isa ho +120°C | -20°C ho isa ho +200°C |
| Khanyetso ea Lik'hemik'hale | E hanela lik'hemik'hale tse 98% | E loketse oli, mafura | E ntle haholo bakeng sa li-acid, oli |
| Khokahano ea khohlano | 0.02–0.1 (ho itlotsa) | 0.3–0.5 (e hloka mafura) | 0.2–0.4 (e itekanetseng) |
| Litlhoko tsa ho tlotsa | Hangata ha ho hlokahale letho | Ho tlotsa hape ka oli khafetsa | Setlolo se itekanetseng |
| Bolele ba bophelo | Lilemo tse 10+ | Lilemo tse 2-5 | Lilemo tse 5–8 |
Hobaneng PTFE e Hlōla Libakeng Tse Mabifi:
Bokgoni ba ho Matha bo omileng: Thepa ea PTFE ea ho itlotsa e felisa tlhoko ea mafura a kantle maemong a mangata, e leng se fokotsang likotsi tsa tšilafalo.
Ho ruruha ho se nang letho: Ho fapana le li-elastomer, PTFE e hanela ho ruruha ha metsi a thehiloeng ho hydrocarbon.
Ho Latela Melao ea FDA: PTFE e amohetsoe bakeng sa lijo le litšebeliso tsa meriana.
## Litšebeliso le Melao-motheo ea Ts'ebetso
Litiiso tsa Oli tsa PTFE li Sebelisoa Hokae?
Likoloi: Li-shaft tsa turbocharger, litsamaiso tsa phetiso, le litsamaiso tsa ho pholisa libeteri tsa EV.
Lifofane: Li-actuator tsa hydraulic le likarolo tsa enjene ea jete.
Ts'ebetso ea Lik'hemik'hale: Lipompo le li-valve tse sebetsanang le lintho tse mabifi tse kang sulfuric acid.
Li-semiconductor: Dikamore tsa vacuum le disebediswa tsa ho tjhesa ka plasma.
Lijo le Meriana: Mechini e kopanyang le e tlatsang e hlokang litiiso tse lumellanang le FDA.
Litiiso tsa PTFE li sebetsa joang?
Litiiso tsa PTFE li sebetsa ka:
Ho Tiisa ho Ikamahanyang le Maemo: Molomo oa PTFE o lumellana le ho se lumellane ho honyenyane ha mokoti kapa ho se tsitse ha bokaholimo.
Tlhahiso e Nyenyane ea Mocheso: Khohlano e tlase e fokotsa ho senyeha ha mocheso.
Ho Tiisa ho sa Fetoheng le ho Fetohang: E sebetsa hantle lits'ebetsong tse sa sisinyeheng le tse lebelo le phahameng (ho fihlela ho 25 m/s).
## Tataiso ea ho Lubella: Na Litiiso tsa PTFE li Hloka ho Lubella?
Hangata ho tlotsa ha PTFE ho felisa tlhoko ea litlolo tsa kantle. Leha ho le joalo, maemong a mojaro o phahameng kapa a lebelo le phahameng,mafura a entsoeng ka siliconekapaOli ea PFPE (perfluoropolyether)li khothaletsoa ka lebaka la ho lumellana ha tsona le botsitso ba mocheso. Qoba mafura a thehiloeng ho peterole, a ka senyang PTFE ha nako e ntse e ea.
## Mokhoa oa ho Fumana ho Dutla ha Tiiso ea Oli
Tlhahlobo ea Pono: Batla masalla a oli ho potoloha ntlo ea tiiso.
Teko ea Khatello: Kenya khatello ea moea ho hlahloba hore na ho na le lipululana tse tsoang.
Litekanyo tsa Tshebetso: Lekola ho phahama ha mocheso kapa tšebeliso e eketsehileng ea matla, e leng se bontšang khohlano e tsoang ho tiiso e hlolehang.
## Nako ea Bophelo ba Tiiso ea Oli ea Enjene: Lintlha le Litebello
Litiiso tsa oli tsa PTFE lienjineng hangata lia tšoarellaLilemo tse 8–12, ho ipapisitsoe le:
Maemo a Ts'ebetso: Mocheso o feteletseng kapa litšila tse khorofo li fokotsa nako ea bophelo.
Boleng ba ho Kenya: Ho se tsamaisane hantle ha ho kenngwa ho baka ho senyeha pele ho nako.
Sehlopha sa Boitsebiso: Metswako e matlafalitsoeng ea PTFE (mohlala, e tletseng khalase) e ntlafatsa ho tšoarella.
Ha ho bapisoa, litiiso tsa nitrile lienjeneng li nka lilemo tse 3-5, ha FKM e nka lilemo tse 5-7.
## Mekhoa ea Indasteri: Hobaneng ha Litiiso tsa PTFE li ntse li fumana botumo
Botsitso: Bolelele ba PTFE bo fokotsa litšila ha bo bapisoa le ho nkeloa sebaka ha elastomer khafetsa.
Likoloi tsa Motlakase (li-EV): Tlhokeho ea litiiso tse hanelang li-coolant le li-voltage tse phahameng e ntse e eketseha.
Indasteri 4.0: Litiiso tse bohlale tse nang le li-sensor tse kentsoeng bakeng sa tlhokomelo e boletsoeng esale pele lia hlaha.
## LBH
P: Na litiiso tsa PTFE li ka sebetsana le libaka tsa vacuum?
K: E, khase e fokolang ea PTFE e etsa hore e be ntle bakeng sa litsamaiso tsa vacuum tlhahisong ea semiconductor.
P: Na litiiso tsa PTFE li ka sebelisoa hape?
K: Le hoja PTFE ka boeona e sa sebetse, ho sebelisa hape lintho hape ho hloka lits'ebetso tse ikhethileng. Bahlahisi ba bangata ba fana ka mananeo a ho khutlisetsa lintho morao.
P: Ke eng e etsang hore litiiso tsa PTFE li hlolehe pele ho nako?
K: Ho kenya ka tsela e sa lokelang, ho se tsamaisane ha dikhemikhale, kapa ho feta meedi ya kgatello (hangata > 30 MPa).
P: Na le fana ka meralo ea tiiso ea PTFE e ikhethileng?
K: E, [Lebitso la Khamphani ea Hao] le fana ka litharollo tse etselitsoeng litekanyo tse ikhethang tsa mokoti, likhatello le mecha ea phatlalatso.
## Qetello
Litiiso tsa oli tsa PTFE li emela sehlohlolo sa theknoloji ea ho tiisa, li fana ka ts'ebetso e sa bapisoeng le e 'ngoe liindastering moo ho hloleha e seng khetho. Ka ho utloisisa melemo ea tsona ho feta nitrile le FKM, ho khetha setlolo se nepahetseng, le ho latela mekhoa e metle, likhoebo li ka fokotsa haholo nako ea ho se sebetse le litšenyehelo tsa ts'ebetso.
Nako ea poso: Hlakubele-03-2025

