PTFE khase

PTFE gaskets na le thepa e babatsehang ea creep resistance, a batang phallo hanyetsa, ultra-tlase mocheso hanyetsa, ha ho na tšilafalo, le bonolo ho kenya le disassembly. Tlas’a matla a manyenyane pele ho ho tiisa, e ka mamella khatello e kholo ea ka hare esita le tikolohong ea khatello ea maikutlo. E loketse haholo bakeng sa li-flange tse mahoashe kapa tse sa lekanngoeng le tse pshatlehang tse sefahleho sa khalase le linako tsa ho tiisa ho fetola mocheso. Re ka khetha Gore, Klinger, Garlock, Sealon le maqephe a mang a atolositsoeng a PTFE bakeng sa bareki ho hlahisa likhase tse hlokahalang bakeng sa bareki.

Molemo

Phahameng mocheso hanyetsa-mocheso sebetsa ka fihla 250 ℃.

Low mocheso ho hanyetsa-o na le e ntle phetha molao toughness; le ha mocheso o theohela ho -196 ℃, e ka boloka bolelele ba 5%.

Khanyetso ea ts’enyeho-E kenella ho lik’hemik’hale tse ngata le li-solvents, ‘me e khona ho mamella li-acid tse matla le alkalis, metsi le mefuta e mengata ea lintho tse tlholehang.

Ho hanyetsa boemo ba leholimo-ho na le bophelo bo botle ba botsofali ka har’a polasetiki.

Lubrication e phahameng-ke coefficient e tlase ea khohlano ea thepa e tiileng.

Ho se khomarele-ho bolela hore tsitsipano e ka holim’a thepa e tiileng e nyenyane ebile ha e khomarele ntho leha e le efe. Lintho tsa eona tsa mochini li na le coefficient e nyane haholo ea likhohlano, e leng 1/5 feela ea polyethylene. Ena ke tšobotsi ea bohlokoa ea bokaholimo ba perfluorocarbon. Ho feta moo, hobane matla a ketane ea fluorine-carbon intermolecular a tlase haholo, PTFE ha e khomarele.

E seng chefo le e kotsi-e nang le inertia ea ‘mele, e le sejana sa mali sa maiketsetso le setho se kentsoeng’ meleng ka nako e telele ntle le liketso tse mpe.

Lisebelisoa tsa motlakase Polytetrafluoroethylene e na le tahlehelo e tlase ea dielectric e sa khaotseng le ea dielectric ka bongata ba maqhubu, mme e na le matla a phahameng a ho senyeha ha matla, ho hanela bophahamo ba modumo le ho hanyetsa arc.

Ho hanyetsa mahlaseli Polytetrafluoroethylene e na le ho hanyetsa mahlaseli a fokolang (104 rad), ‘me e senyeha ka mor’a ho pepesehela mahlaseli a matla a matla,’ me thepa ea motlakase le mechine ea polymer e fokotsehile haholo. Kopo Polytetrafluoroethylene ka thehoa ka compression kapa extrusion sebetsa; e ka boela ea etsoa ho hasana ha metsi bakeng sa ho roala, ho qoelisoa kapa ho etsa likhoele. PTFE e sebelisoa haholo e le thepa e hanyetsanang le mocheso o phahameng le o tlaase, thepa e thibelang ho bola, thepa e sireletsang, li-anti-stick, joalo-joalo ka matla a nyutlelie, sefofane, lisebelisoa tsa elektroniki, motlakase, lik’hemik’hale, mechine, lisebelisoa, limithara, kaho, masela, lijo le tse ling. liindasteri.

Ho hanyetsa sepakapaka ho hola: ho hanela mahlaseli le ho kenella ho tlase: ho pepeseha ha sepakapaka nako e telele, bokaholimo le ts’ebetso li lula li sa fetohe.

Ntho e ke keng ea chesa: Lethathamo la moeli oa oksijene le ka tlase ho 90.

Ho hanyetsa acid le alkali: ha e kenelle ka li-acid tse matla, alkalis e matla le li-solvents tsa manyolo.

Khanyetso ea oksijene: e hanyetsanang le ts’enyeho ke li-oxidants tse matla.

Acidity: Ho se nke lehlakore.

Thepa ea mochini oa PTFE e batla e le bonolo. E na le matla a tlase haholo a holim’a metsi.

Polytetrafluoroethylene (F4, PTFE) e na le letoto la ts’ebetso e babatsehang: mocheso o phahameng oa ho hanyetsa-mocheso oa nako e telele oa tšebeliso ea likhato tse 200 ~ 260, ho hanyetsa mocheso o tlaase-o ntse o le bonolo ho -100 likhato; corrosion resistance-ho hanyetsa aqua regia le metsoako eohle ea lintho tse phelang; Meteo ho hanyetsa-botsofali bophelo ka polasetiki; lubrication e phahameng-e nang le coefficient e nyane ea khohlano (0.04) ka polasetiki; ho se khomarele-ka tsitsipano e tlase ea holim’a thepa e tiileng ntle le ho khomarela lintho leha e le life; e seng chefo-ka inertness fisioloji; thepa e babatsehang ea motlakase , Ke thepa e sireletsang ea C-level e loketseng.