PTFE high-temperature tepi imakhala ngati chinthu chofunika kwambiri pakupanga semiconductor, osati chogwiritsidwa ntchito ponseponse. Ntchito zazikuluzikulu: chitetezo chawafer-level (ma plasma etching masking, chitetezo cham'mbuyo cha CMP, CVD/PVD masking), njira zolongedza (kukhazikika kwa waya, chigoba cha soldering cha PCBs), ndi kukonza zida (anti-static roller kukulunga, cholemba pachipinda choyera). Zofunikira zoyera kwambiri: ma halogen otsika (amaletsa dzimbiri zomangira zomangira), ma siloxane otsika (<500 ppm, amalepheretsa kupanga tinthu tating'ono), ma ion achitsulo otsika (<1 ppm iliyonse), ISO Class 4 cleanroom slitting/package, 10⁶-10⁹ Ω TV surface resistivity, ndi kutsika kwa TV OC.

Kuyera kwazinthu zopangira ndiye maziko oyambira amtundu wa PTFE wotentha kwambiri. Zonyansa (zoyambira zotsalira, zowonjezera, ma ion zitsulo, zoipitsidwa) zimayambitsa kuwonongeka kwa kutentha msanga (mathovu, matuza opitilira 260 ° C), malo osamata (malo omatira), kuchepetsa kutchinjiriza kwa magetsi (kutayika kwa dielectric, kutsika kwamagetsi), kufooka kwamphamvu kwamakina (ndi kupsinjika kwamtundu wachikasu), kufooka kwa makina (ndi kupsinjika kwachikasu). Zopangira zoyera kwambiri zimatsimikizira kuti FDA imagwirizana, imakhala ndi moyo wautali, nsalu ya PTFE yogwira ntchito kwambiri.

PTFE- TACHIMATA fiberglass nsalu nsalu sintering amafuna yeniyeni kugwira nthawi pa 370-400 °C. Ng'anjo zopitilira: 30-90s (zoonda) mpaka 3-5+ min (zokhuthala). Ng'anjo zamagulu: 5-15 min. Pansi-sintering kumayambitsa opaque, zokutira zaukali zomwe zimasenda; Kuchuluka kwa sinter kumayambitsa chikasu, brittleness, ndi kutulutsa mpweya wapoizoni wa fluoride. Kukhathamiritsa kwa njira: gwiritsani ntchito zowunikira kutentha kwa ng'anjo, fufuzani zowoneka (zowoneka bwino, zosinthika), ndikuyesa kuyesa kukoka matepi. Nthawi zonse onetsetsani kutentha kokwanira.

Tepi yachipatala ya PTFE yotentha kwambiri imaphatikiza gawo laling'ono la biocompatible PTFE ndi zomatira za silikoni zochiritsidwa ndi platinamu. Zofunika kwambiri: ISO 10993 yogwirizana (palibe cytotoxicity, sensitization, kapena irritation), imapirira kutsekereza mobwerezabwereza (steam/EO/gamma), 260°C kukana kutentha. Njira zodzitetezera: musapitirire 260 ° C (utsi wapoizoni wopitilira 300 ° C), kuyatsa kwa gamma kungayambitse kusokoneza, kutsimikizira njira zotsekera, ndikupempha zolemba zonse zotsatiridwa (malipoti a ISO 10993, MSDS, data yokalamba). Osati kuti agwiritse ntchito magazi achindunji kapena implantation pokhapokha atatsimikiziridwa mwachindunji.

Nsalu ya PTFE yotentha kwambiri imafuna kusamala mosamala kuti zitsimikizire chitetezo ndi moyo wautali. Njira zazikulu zodzitetezera: musapitirire 260 ° C (pamwamba pa 320 ° C imatulutsa utsi wapoizoni), pewani mikwingwirima yakuthwa (yopaka ming'alu, imawonetsa magalasi a fiberglass), osatsukidwa ndi abrasive (ubweya wachitsulo umawononga malo osamangira ndodo), sungani chilolezo chokulitsa kutentha (kuletsa kung'ambika), ndikuyikanso m'malo mwa matuza kapena kusenda. Sitolo idagubuduzika, kutali ndi UV. Valani magolovesi oteteza kutentha mukamagwira ntchito.

Nsalu ya PTFE yotentha kwambiri imakhala ndi coefficient of thermal expansion (CTE) ya 30-60 ppm/°C (warp/weft) - yapamwamba kuposa fiberglass yokha koma yotsika kwambiri kuposa PTFE yoyera (100-200 ppm/°C). PTFE imasintha modzidzimutsa (1-2%) pa 19 ° C ndi 30 ° C kusintha kwa gawo. Kupewa kung'ung'udza, kung'ambika, ndi kung'ambika: zilolezo zamapangidwe kuti zikulitseni kwaulere, pewani kukanikiza pakusintha kutentha kwa gawo, gwiritsani ntchito ma tensioner pa malamba otumizira, ndikuyikani anti-buckling overlop design. Kuyendera pafupipafupi kwa kuzizira ndikofunikira.

PTFE tepi reusability zimadalira zinthu zinayi: zomatira chiphunzitso (mkulu crosslink kachulukidwe, otsika silikoni migration, microphase kapangidwe kwa repositionable tack), gawo lapansi anangula (pamwamba kutsegula + zoyambira kuteteza kutengerapo zomatira zonse), ❖ kuyanika kumbuyo (kumasula wosanjikiza kuteteza zomatira pa unwinding), ndi kagwiridwe koyenera (zoyera zomatira pamwamba, zomatira zolondola pamwamba, kupewa zomatira pamwamba). Zomatira zotsuka ndi madzi zimatha kuchira> 90% tack pambuyo poyeretsa.

PTFE zowotchera nsalu zotentha kwambiri za PTFE zimapereka maubwino anayi: magwiridwe antchito osamata (palibe mafuta kapena ufa wofunikira, makeke osakhwima amamasulidwa bwino), kutentha kwakukulu (-70°C mpaka 260°C, otetezeka ku uvuni mpaka mufiriji), kugwiritsiridwa ntchitonso (zikwizikwi, zosavuta kuyeretsa), komanso ngakhale kuwongolera kutentha (kuletsa kuyaka, bulauni moyenera). Mogwirizana ndi chakudya cha FDA, amatulutsa zikopa ndi kupitilira mateti a silikoni okhala ndi kutentha kwabwinoko komanso mawonekedwe owoneka bwino.

PTFE mkulu-kutentha nsalu n'kofunika mu zovala interlining makampani. Ntchito zazikulu: malamba osatha osatha amakina ophatikizana mosalekeza (amateteza zomatira zotentha zosungunuka, zomata zopanda makwinya), chivundikiro chosakhala ndi ndodo ndi nsalu zomangira zosindikizira kutentha (amateteza ma platens kuti asaipitsidwe), malamba otumizira madontho a madontho / zomatira zomatira kuyanika / sintering), ndi zovundikira nsapato zachitsulo zokanikizira zitsanzo. Kukhuthala kumachokera ku 0.13mm (padding yopepuka) mpaka 0.55mm (malamba onyamula katundu wolemera).

Fiberglass nsalu matenthedwe shrinkage ndiye chifukwa chachikulu cha PTFE tepi dimensional kusakhazikika. Pa kutentha kwa PTFE sintering (360-400 ° C), kupsinjika kotsalira koluka kumatulutsidwa. Ngati sichiletsa, nsalu imachepa; Ngati atalephereka, kupsinjika kobisika kumatsekeredwa, kumapangitsa kuchepa pang'onopang'ono pakuchiritsa zomatira (150-200 ° C) ndikutentha komaliza. Yankho: gwiritsani ntchito magalasi a fiberglass asanayambe kutentha ndi <0.5% shrinkage pa 400 ° C, kuchotsa kupsinjika kotsalira musanayambe kupaka.