Kutentha kwa magalasi (Tg) a zomatira zotengera kukakamiza kwa silikoni ndi pafupifupi -120 ° C - kutsika kwambiri kuposa zomatira za acrylic. Tg yotsika kwambiri iyi imasunga tepi yotentha kwambiri ya PTFE yosinthika komanso yomata ngakhale pa -70 ° C, kuteteza kusweka kwamphamvu ndikupangitsa kumamatira kodalirika muzogwiritsa ntchito cryogenic.

Tepi ya PTFE yotentha kwambiri imatha kusweka kapena kusweka pansi pa kupindika mobwerezabwereza ndi kutsegulira. Nkhaniyi ikufotokoza momwe mungapewere izi kudzera mu kusankha koyenera kwa gawo lapansi (magalasi owonjezera), makulidwe oyenera (0.18mm ngati muyezo), kusankha zomatira za silicone, ndi njira zoyenera zoyika.

Nsalu yotentha kwambiri ya PTFE imapereka kukana kwapadera kwamankhwala, kupirira ma acid amphamvu, alkalis, zosungunulira za organic, ndi mpweya wowononga. Nkhaniyi imafotokoza mwatsatanetsatane za zinthu zomwe zimagonjetsedwa, zolepheretsa (zitsulo za alkali zosungunuka, zopangira mphamvu za fluorinating), ndi zinthu zazikulu monga kutentha, kukhazikika, ndi kupsinjika kwa makina.

Kusankhidwa kwa pepala lotulutsa kapena gawo laling'ono la filimu ndi wothandizira kumasula kumakhudza mwachindunji kukhazikika kwa kusungirako ndi kupukuta kwa PTFE tepi yotentha kwambiri. Nkhaniyi ikufanizira magawo a mapepala a PET vs kraft ndi silicone vs.

Matepi a PTFE omwe amawotcha kwambiri amagwiritsidwa ntchito kwambiri pakutchinjiriza magetsi, koma kuchuluka kwa ma frequency ndi ma voltage apamwamba kumabweretsa zoopsa zapadera: kuwonongeka kwamagetsi, kutulutsa pang'ono, kukalamba kwamafuta, kutayika kwa ma frequency apamwamba, komanso kukhudzidwa kwa chilengedwe. Nkhaniyi ikufotokoza ngozi iliyonse komanso mmene tingapewere.

Kulowetsedwa kwa PTFE sikungokhala ndi nsalu za fiberglass. Nkhaniyi ikuwonetsa magawo asanu ndi awiri amtundu wina - aramid, carbon fiber, PBI, porous metal, graphite, asbestos (ochotsedwa), ndi zodzaza ndi ceramic - ndi machitidwe awo, ubwino, malire, ndi ntchito zazikulu.

Nsalu yopumira kwambiri ya PTFE yotentha kwambiri imaphatikiza zinthu zopanda ndodo, kukhazikika kwamafuta, komanso kuthekera kwa mpweya. Nkhaniyi ikuyang'ana ntchito zake zazikulu pakuyanika nsalu, kukonza chakudya, kupanga zinthu zambiri, zamagetsi, zotumiza mpweya, kuteteza chilengedwe, ndi zida zomangira.

Nkhaniyi ikufotokoza momwe mungapewere kuipitsidwa ndi kuwonongeka kwa ntchito pa mbali yosamatira ya PTFE tepi yotentha kwambiri panthawi yophimba. Njira zazikuluzikulu zikuphatikiza kuwongolera magwero (kuchiza molondola pamwamba), kudzipatula pathupi (makanema oteteza, zodzigudubuza zopanda ndodo, zowumitsa zone), ndikuwongolera njira zoyengedwa.

Nkhaniyi ikufotokoza chifukwa chake nsalu ya fiberglass yopanda alkali ndiye gawo lapansi lokondedwa la nsalu za PTFE zotentha kwambiri. Imakhudza kulumikizana ndi mankhwala kudzera pa ma silane coupling agents ndi zinthu zofunika kwambiri monga kukhazikika kwamafuta, kukhazikika kwa mawonekedwe, komanso kukana kwa dzimbiri - kuwonetsetsa kuti zikugwira ntchito kwanthawi yayitali m'malo ovuta.

Kuyika PTFE kutentha tepi mwamphamvu pa yokhotakhota ndi kusakhazikika pamalo popanda thovu ndi m'mphepete warping, yokhazikika ntchito ndondomeko n'kofunika, kuphatikizapo bwinobwino gawo lapansi pretreatment, luso ntchito akatswiri ndi miyeso yoyenera wothandiza. Pakati pawo, kuwongolera kwa gawo lapansi ndiye gawo lofunikira kwambiri, lomwe limatsimikizira pafupifupi 70% ya zotsatira zomaliza zomata.