PTFE high-themperature cloth insulating gaskets kopanya matla a dielectric a phahameng (a tsitsitseng tlas'a mongobo), -70 ° C ho 260 ° C mocheso oa mocheso, lik'hemik'hale tsa bokahohleng (ntle le litšepe tsa alkali tse qhibilihantsoeng), holim'a metsi a sa tsitsang (thibela creepage), anti-creep (fiberglass reinforcement vs. friction e tlaase μ5 = 0.0 . Tekanyo ea mollo ea V-0. Ha ho bapisoa le mica, rabara, le li-gaskets tse hloekileng tsa PTFE, lesela la PTFE le fana ka maemo a holimo, a sebetsang hantle, le botsitso ba nako e telele. E loketse li-transformer, insulation motor, ho tiisa flange ea lik'hemik'hale, le lisebelisoa tsa semiconductor.

PTFE lesela flatness nakong sintering hloka e nepahetseng tsitsipano, mocheso, le taolo ya thibelo. Mekhoa ea mantlha: mochini oa stenter (lipoleiti tsa pin li boloka bophara, li thibela ho fokotseha ha weft), profil ea mocheso oa gradient (ho futhumala butle → 380-400 ° C tšoara → ho pholile butle ka tlase ho 310 ° C pele ho lokolla tsitsipano), substrate e senyehileng pele (e tlosa khatello ea ho loha pele e roaloa), le botenya ba ho roala junifomo (ho thibela ho qhibiliha ho fapaneng). Thibelo e tsitsitseng e tlameha ho bolokoa ho fihlela ho pholile ka tlase ho ntlha ea crystallization ea PTFE (hoo e ka bang 310 ° C) ho thibela ntoa.

Lesela la mocheso o phahameng oa PTFE le hlahisoa ka ho kenngoa ha lesela le le leng (phase e le 'ngoe: ho potlaka, ho theko e tlaase, ho roala hamonate, holim'a metsi a nang le likoti) kapa ho kenngoa ha metsi a mangata (2-3+ e feta: e boreleli, e teteaneng, e se nang pinhole, PTFE content 50-70%, premium performance, theko e phahameng). Single-dip e lumellana le li-gaskets tsa boemo bo tlase, limmete tsa nakoana, le lisebelisoa tse phefumolohang. Li-multi-dip li hlokahala bakeng sa maqephe a ho baka a boemo ba lijo, mabanta a conveyor a sa thupeng, li-circuits tsa maqhubu a phahameng, li-liner tsa lik'hemik'hale, le li-membrane tsa meralo.

Phekolo ea lesela la mocheso o phahameng oa PTFE e senya ho se sebetse ha lik'hemik'hale bakeng sa bonding/printing. Mekhoa e mene: etching ea lik'hemik'hale (sodium-naphthalene, matla a holim'a 20→ 40-50 dyn / cm, lera le lefifi le sa feleng, sebopeho sa micro-porous), phekolo ea plasma (nano-roughening, grafting ea sehlopha se sebetsang, fensetere e khutšoanyane e sebetsang), phekolo ea corona (filimi e tšesaane, ho senyeha ka potlako, botebo bo fokolang), le phekolo ea laser (ho nepahala micro-patterning, controlled carbonization). Mekhoa eohle ea 'mele e hlabang le ho hlahisa lihlopha tsa polar ka lik'hemik'hale (C=O, -OH, -COOH) ho etsa hore ho khonehe ho kopanya.

Ho hloeka ha lintho tse tala ke motheo oa motheo oa boleng ba lesela la mocheso o phahameng oa PTFE. Litšila (masala a qalang, li-surfactants, li-ion tsa tšepe, li-agent tse silafetseng) li baka ho senyeha ha mocheso pele ho nako (lipulunyana, ho phatloha ka holimo ho 260 ° C), libaka tse sa tsitsang tse sa tsitsang (lintlha tse khomarelang), ho fokotsa motlakase (tahlehelo ea dielectric, ho fokotseha ha matla), ho fokolisa matla a mochine, ho fokolisa matla a mochine (stress coloring), Lisebelisoa tse tala tse phahameng li netefatsa hore lesela la PTFE le lumellana le FDA, le phela nako e telele, le sebetsa hantle haholo.

Ho roala lesela la fiberglass e koahetsoeng ke PTFE ho hloka nako e nepahetseng ea ho tšoara 370-400°C. Libōpi tse tsoelang pele: 30-90s (e tšesaane) ho 3-5 + min (e teteaneng). Libōpi tsa lihlopha: 5-15 min. Tlas'a sintering e bakang opaque, masela a makukuno a ebolang; ho sinter ho feta tekano ho baka bosehla, ho senyeha, le ho tsoa ha khase e chefo ea fluoride. Ts'ebetso ea ts'ebetso: sebelisa li-trackers tsa mocheso oa sebōpi, etsa tlhahlobo ea pono (e hlakileng, e bonolo), 'me u etse liteko tsa ho hula tepi. Kamehla etsa bonnete ba ho lumellana ha mocheso o feletseng.

Lesela la mocheso o phahameng oa PTFE le hloka ho tšoaroa ka hloko ho netefatsa polokeho le bophelo bo bolelele. Litlhokomelo tsa bohlokoa: le ka mohla u se ke ua feta 260 ° C (ka holimo ho 320 ° C e ntša mosi o chefo), qoba likheo tse bohale (ho roala mapetsong, ho pepesa fiberglass), ho se hloekisoe ka mokhoa o senyang (boea ba tšepe bo senya bokaholimo bo se nang thupa), boloka sebaka sa ho atolosa mocheso (ho thibela ho taboha), 'me u nke sebaka ha se entsoe kapa se eboloa. Lebenkele le phuthoa, hole le UV. Apara liatlana tse thibelang mocheso nakong ea ho tšoara.

Lesela la mocheso o phahameng oa PTFE le bohlokoa indastering ea ho kopanya liaparo. Lisebelisoa tsa bohlokoa: mabanta a sa feleng a conveyor bakeng sa mechini e tsoelang pele ea ho kopanya (e thibela sekhomaretsi se chesang se qhibilihisang, se se nang wrinkles), sekoaelo se se nang thupa le lesela la padding bakeng sa likhatiso tsa mocheso o bataletseng (li sireletsa lipoleiti hore li se ke tsa silafatsoa), mabanta a conveyor bakeng sa pente ea matheba / phofshoana e koahelang li-powder. ho omisa / ho sintering), le likoahelo tsa lieta tsa tšepe bakeng sa ho hatella sampole. Botenya bo tloha ho 0.13mm (padding e bobebe) ho isa ho 0.55mm (mabanta a tsamaisang mosebetsi o boima).

Lesela la anti-static PTFE le fihleloa ka mekhoa e 'meli e meholo: ho roala doping (ho kopanya li-fillers tse tsamaisang tse kang carbon black ho PTFE emulsion, ho etsa marang-rang a percolation nakong ea mahloriso a bohlokoa) le substrate weaving (ho kenya likhoele tsa conductive ka har'a lesela la fiberglass). Bokaholimo ba ho hanyetsa bo laoloa ho 10⁵–10⁹ Ω. Molao-motheo: theha tsela e tsamaisang litefello tse tsitsitseng hang-hang, ho thibela ho bokellana ho kotsi. Ho beha fatše hoa hlokahala bakeng sa ts'ebetso e sebetsang.

Ho omisa ke mohato oa bohlokoa oa tlhahiso ea lesela la mocheso o phahameng oa PTFE. Litšitiso tse tloaelehileng li kenyelletsa: ho petsoha (ho omisa ka potlako haholo, letlalo la letlalo), ho falla ha letlalo (likaroloana li falla holimo, tlamahano e fokolang ea ka hare), li-pinholes / li-blister (moea o koaletsoeng kapa mouoane), matheba a masoeu le chalking (ho falla ha surfactant kapa fusion e sa fellang), yellowing / coking (ho futhumala ho feteletseng ha li-additives), delamination (lekhahla la lamunu), khatello ea kelello e feta (lekhapetla la lamunu). shrinkage), bokaholimo bo omileng empa kahare bo le metsi (ho holoha letlalo ho ts'oara mongobo), le mats'oafo a teteaneng (phello ea kofi). Litharollo li kenyelletsa lintlha tse laoloang tsa ho omisa, moea o nepahetseng, le pretreatment ea substrate.