Ptfe tube e entsoe ka thepa efe?
Kenyelletso ea sehlahisoa
1,Ptfe tubeke lebitso le leng la polytetrafluoroethylene, khutsufatso ea Senyesemane ke PTFE, (eo hangata e tsejoang e le "Plastic King, Hara"), 'me foromo ea lik'hemik'hale ke -(CF2-CF2)n-.Polytetrafluoroethylene e fumanoe ka phoso ka 1938 ke setsebi sa k'hemistri Dr. Roy J. Plunkett ho DuPont.'s Jackson Laboratory e New Jersey, USA Ha a ne a leka ho etsa chlorofluorocarbon e ncha Tabeng ea motsoako oa sehatsetsi.Lihlahisoa tsa thepa ena ka kakaretso li bitsoa "seaparo se se nang thupa";ke thepa ea maiketsetso ea polymer e sebelisang fluorine ho nkela liathomo tsohle tsa haedrojene sebakeng sa polyethylene.Thepa ena e hanyetsana le li-acids, alkalis, le metsoako e fapaneng ea lintho tse hlapollang, 'me e batla e sa qhibilihe ka har'a metsoako eohle.Ka nako e ts'oanang, PTFE e na le litšoaneleho tsa ho hanyetsa mocheso o phahameng, 'me coefficient ea eona ea likhohlano e tlase haholo, kahoo e ka sebelisoa e le mokhoa oa ho tlotsa, hape e fetohile seaparo se setle bakeng sa lera le ka hare la lipitsa tse sa thupeng. le lipeipi tsa metsi
Lihlahisoa tsena li sebelisoa haholo-holo lihlahisoa tse latelang:
PTFE, FEP, PFA, ETFE, AF, NXT, FFR.
PTFE: PTFE (polytetrafluoroethylene) e sa thupeng e ka sebelisoa khafetsa ho 260°C, e nang le mocheso o phahameng oa tšebeliso ea 290-300°C, coefficient e tlase haholo ea likhohlano, khanyetso e ntle ea ho apara le botsitso bo botle ba lik'hemik'hale.
FEP: FEP (fluorinated ethylene propylene copolymer) e se nang lithupa e qhibiliha ebe e phalla ho etsa filimi e se nang porous nakong ea ho baka.E na le botsitso bo botle ba lik'hemik'hale le litšobotsi tse ntle tse se nang thupa.Mocheso o phahameng oa tšebeliso ke 200℃.
PFA: PFA (perfluoroalkyl compound) e se nang lithupa e qhibilihisa ebe e phalla nakong ea ho baka ho etsa filimi e se nang porous joaloka FEP.Monyetla oa PFA ke hore e na le mocheso o phahameng o tsoelang pele oa tšebeliso ea 260°C, ho satalla ho matla le ho tiea, 'me ka ho khetheha e loketse ho sebelisoa lits'ebetsong tse khahlanong le ho khomarela le lik'hemik'hale tlas'a maemo a phahameng a mocheso.
PTFE (Polytetrafluoroethene) ke thepa ea maiketsetso ea polymer e sebelisang fluorine ho nkela liathomo tsohle tsa haedrojene sebakeng sa polyethylene.Thepa ena e hanyetsana le li-acids, alkalis, le metsoako e fapaneng ea lintho tse hlapollang, 'me e batla e sa qhibilihe ka har'a metsoako eohle.Ka nako e ts'oanang, ptfe tube e na le litšobotsi tsa ho hanyetsa mocheso o phahameng, 'me coefficient ea eona ea likhohlano e tlaase haholo, kahoo e ka sebelisoa bakeng sa ho tlotsa, hape e fetohile seaparo se setle bakeng sa li-woks le liphaephe tsa metsi tse bonolo ho hloekisa.E ka sebelisoa bakeng sa ho hanyetsa kutu ea liphaephe, ho hanyetsa mocheso o phahameng le o tlase, le ho hanyetsa kutu.E sebelisoa libakeng tse thata tse kang lubrication, boenjiniere, lisebelisoa tsa elektroniki, lisebelisoa tsa motlakase le sefofane.
Likarolo tsa sehlahisoa
1, Ho hanyetsa mocheso o phahameng le o tlaase: phello e fokolang mocheso, mocheso o pharaletseng, mocheso o sebetsang -65 ~ 260 ℃.
2、 E sa khomareleng: Hoo e ka bang lintho tsohle ha li kopane le filimi ea PTFE.Lifilimi tse tšesaane haholo li boetse li bonts'a ts'ebetso e ntle e sa sitisoeng.2. Ho hanyetsa mocheso: filimi ea ho roala ea PTFE e na le mocheso o babatsehang oa ho hanyetsa le mocheso o tlaase.E khona ho mamella mocheso o phahameng ho fihla ho 300 ° C ka nako e khuts'oane, 'me ka kakaretso e ka sebelisoa khafetsa lipakeng tsa 240°C le 260°C.E na le botsitso bo boholo ba mocheso.E khona ho sebetsa ka har'a mocheso o batang ntle le ho nyenyefatsa 'me ha e qhibilihe mocheso o phahameng.
3, Thepa e thellang: Filimi ea ho roala ea PTFE e na le coefficient e phahameng ea likhohlano.Coefficient ea likhohlano e fetoha ha mojaro o thella, empa boleng bo pakeng tsa 0.05-0.15 feela.
4, Ho hanyetsa mongobo: Bokaholimo ba filimi ea ho roala PTFE ha e khomarele metsi le oli, 'me ha ho bonolo ho khomarela tharollo nakong ea ts'ebetso ea tlhahiso.Haeba ho na le litšila tse fokolang, feela u li hlakole.Nako e khuts'oane e senyehile, ho boloka lihora tsa mosebetsi le ho ntlafatsa katleho ea mosebetsi.
5, Ho hanyetsa ho roala: E na le khanyetso e ntle ea ho roala tlas'a mojaro o phahameng.Tlas'a mojaro o itseng, o na le melemo e 'meli ea ho hanyetsa ho apara le ho se sitise.
6, Corrosion resistance: PTFE ha e na ho senyeha ha lik'hemik'hale, 'me e ka mamella li-acids tsohle tse matla (ho akarelletsa le aqua regia) le li-oxidants tse matla ntle le tšepe e qhibilihisitsoeng ea alkali, mecha ea litaba ea fluorinated le sodium hydroxide ka holimo ho 300 ° C.Karolo ea ho fokotsa le li-solvents tse fapaneng tsa tlhaho li ka sireletsa likarolo tsa mofuta ofe kapa ofe oa ho bola ha lik'hemik'hale
thepa ea lik'hemik'hale
1, Insulation: Ha e amehe ke tikoloho le makhetlo a mangata, ho hanyetsa molumo ho ka fihla ho 1018 ohm · cm, tahlehelo ea dielectric e nyenyane, 'me motlakase oa ho senyeha o phahame.
2, Ho hanyetsa mocheso o phahameng le o tlase: phello e fokolang mocheso, mocheso o pharaletseng, mocheso o sebetsang -190 ~ 260 ℃.
3, Ho itšehla thajana: E na le khohlano e nyane ka ho fetisisa har'a lipolasetiki mme ke sesebelisoa sa ho tlotsa se se nang oli.
4, Ho se mamelle ha sefahleho: lisebelisoa tse tiileng tse tsejoang ha li khone ho khomarela bokaholimo, ke thepa e tiileng e nang le matla a manyane a holim'a metsi.
5, ho hanyetsa boemo ba leholimo, ho hanyetsa mahlaseli le ho fokotseha ho fokolang: ho pepesehela sepakapaka ka nako e telele, bokaholimo le ts'ebetso li lula li sa fetohe.
6, Incombustibility: Lenane la moeli oa oksijene le ka tlase ho 90.
7, PTFE e sebelisoa haholo liindastering tse hlokang mocheso o phahameng oa ho hanyetsa le viscosity e phahameng.E matla ka ho fetisisa acid-fluoroantimonic acid e ka boela ea sebelisoa bakeng sa ho boloka
Sebaka sa kopo ea sehlahisoa
Polytetrafluoroethylene e ka thehoa ka ho sutumetsa kapa ho ntša;e ka boela ea etsoa filimi ebe e khaola ka teipi ea PTFE e kenngoa ka shaft ha e sebelisoa lithapong tse nang le mocheso o phahameng.E sebelisetsoa ho hlahisa lithapo tsa maqhubu a phahameng le ho etsoa ka ho toba ho hasana ha metsi.E ka sebelisoa bakeng sa ho roala, ho kenya letsoho kapa ho etsa fiber.
Polytetrafluoroethylene e sebelisoa haholo liindastering tse kang matla a nyutlelie, tšireletso ea naha, sefofane, lisebelisoa tsa elektroniki, motlakase, lik'hemik'hale, mechine, lisebelisoa, limithara, kaho, masela, phekolo ea tšepe holim'a tšepe, meriana, tlhokomelo ea bongaka, lijo, metallurgy le ho qhibiliha, joalo-joalo. lisebelisoa, thepa e sireletsang tšireletso, liphahlo tse thibelang lithupa, joalo-joalo li etsa hore e be sehlahisoa se ke keng sa nkeloa sebaka.
Hose ea PTFEe na le thepa e phethahetseng e felletseng, e hanyetsanang le mocheso o phahameng, e hanyetsa kutu, e sa thupeng, e itlotsa ka bo eona, thepa e ntle ea dielectric, le coefficient e tlase haholo ea likhohlano.E sebelisoa e le lipolasetiki tsa boenjiniere, e ka etsoa ka li-tubes tsa PTFE, lithupa, mabanta, lipoleiti, lifilimi, joalo-joalo. Ka kakaretso e sebelisoa liphaepheng tse thibelang ho bola, lijana, lipompo, li-valve, radar, lisebelisoa tsa puisano tse phahameng-frequency, lisebelisoa tsa seea-le-moea, radomes, joalo-joalo ka litlhoko tse phahameng tsa ts'ebetso.Ho eketsa filler leha e le efe e ka mamellang mocheso oa sintering oa polytetrafluoroethylene, thepa ea eona ea mochine e ka ntlafatsoa haholo.Ka nako e ts'oanang, thepa e 'ngoe e babatsehang ea PTFE e bolokiloe.Mefuta e tlatsitsoeng e kenyelletsa fiber ea khalase, tšepe, tšepe ea oxide, graphite, molybdenum disulfide, carbon fiber, polyimide, EKONOL, joalo-joalo. Ho hanyetsa le moeli oa PV ho ka eketseha ka makhetlo a 1000.
Lipatlisiso tse amanang le ptfe hose:
Nako ea poso: Jan-07-2021