Nkhaniyi ikufotokoza za ntchito ya nsalu ya Teflon yotentha kwambiri pamakampani amagetsi adzuwa. Kugwiritsa ntchito kwambiri mu module lamination: kutulutsa nsalu yoyikidwa pamwamba / pansi pa ma PV modules kumalepheretsa EVA yosungunuka (140-150 ° C) kuti isamamatire ndi mbale yotentha kapena mbale ya rabara, kuteteza zipangizo ndi kuonetsetsa kuti pali malo osalala; malamba onyamula laminator kuti azitsitsa / kutsitsa; Nsalu zodzitchinjiriza za rabara zomwe zimakulitsa moyo wautumiki. Ma cell stringer soldering: malamba onyamula ma cell ndi riboni kudzera m'malo otenthetsera, okhala ndi malo osasunthika omwe amakana kutulutsa ndi ma solder splashes; Kutenthetsa nsanja cushioni kwa soldering workstations. Kutentha kwapamwamba: kukulunga kwa machubu otentha, ma thermocouples, zingwe mu laminator ndi ma uvuni ochiritsira; zida zotchingira matenthedwe makatani ndi zishango.

Nkhaniyi chimakwirira masitepe pretreatment chofunika kwa fiberglass nsalu pamaso PTFE emulsion impregnation. Khwerero 1: Kutenthetsa kutentha/kutsuka phula pa 300-450°C kuti muchotse sera ya parafini ndi mafuta pamwamba pa phula (parafini sera, zotumphukira za wowuma), zotsalira zotsalira zofunika kutsika ndi 0.2%, kupanga 'nsalu yothira phula.' Gawo 2: Mankhwala opangira mankhwala apamwamba - kupaka silane,KH-50 coupling,KH-50 A-174) kupanga filimu yolumikizana ndi mankhwala pamtunda, ndikupangitsa mlatho wa molekyulu pakati pa ulusi wagalasi ndi organic PTFE; Nsalu zomwe zidagulitsidwa kale zitha kudumpha izi koma ziyenera kutsimikiziridwa. Khwerero 3: Kuyanika ndi kutentha koyambirira - kuyanika pa 80-120 ° C kwa maola 1-2 kuti muchepetse chinyezi pansi pa 0.1%, kupewa kupangika kwa thovu / zopanda kanthu pochiritsa.

Nkhaniyi ikuyang'ana kusintha kwapangidwe kwa nsalu ya PTFE-yakutidwa ndi fiberglass m'malo owononga kwambiri. Kupaka kwa PTFE kumakhala kokhazikika pama media ambiri (kuphatikiza aqua regia, ma acid acids, zosungunulira za organic) - unyolo wa maselo amakhalabe osasinthika. Kupatulapo: zitsulo zosungunuka za alkali zimatulutsa fluorine zomwe zimayambitsa carbonization (bulauni / wakuda, wonyezimira); amphamvu fluorinating agents (F₂, ClF₃) kuswa mpweya mpweya msana; zosungunulira zina zamtundu wa Freon zimayambitsa kutupa; otentha ndende oxidizing zidulo pang'onopang'ono kuyambitsa magulu polar pamwamba.

Nkhaniyi ikufotokoza za kagwiritsidwe ntchito ka nsalu za PTFE-zokutidwa ndi fiberglass pamagetsi ndi zamagetsi. Madera akuluakulu asanu ndi limodzi: Kutentha kwapamwamba ndi chitetezo - kutsekemera kwa injini / kagawo / gawo, kutsekemera kwa transformer layer, kukulunga koyilo, kudzipatula kwa zida zamagetsi zamagetsi; Copper-clad laminate ndi PCB kupanga - kumasula nsalu mu PCB lamination, prepreg ndi CCL woyera kutumiza; Electronic soldering - masking solder for wave/reflow soldering (kuteteza chala cha golide), malamba otumiziranso ng'anjo yamoto, mphasa zogwirira ntchito, zotchingira zoteteza mfuti; Chingwe ndi zingwe zomangira - tepi yokulunga yotentha kwambiri, manja otentha ndi zovundikira zosayaka moto, malamba otumizira machubu otenthetsera kutentha kwambiri; Anti-static and cleanroom - malamba otumizira oyeretsa ndi mateti ogwirira ntchito, semiconductor ndi photovoltaic kutentha kwambiri.

Nkhaniyi ikupereka njira zowunikira zotsutsana ndi zomatira komanso zotsuka mosavuta za nsalu za PTFE zokutidwa ndi fiberglass motsutsana ndi madontho amafuta ndi fumbi. Njirazi zikuphatikizapo: Kuyesa kwapang'onopang'ono ndi kuyesa mphamvu - madzi okhudzana ndi madzi nthawi zambiri> 110 °, ngodya yozungulira越小越好, mphamvu ya pamwamba pa 18-20 mN/m; Kuyesa kwa peel yamakina - 180 ° mphamvu ya peel yokhala ndi tepi yokhazikika, yabwino <0.1 N/25 mm; Kuyesa kukana kwa mafuta ofananitsa - njira yothimbirira mafuta / yotsalira, kuchuluka kwa kupukuta kuyeretsa pogwiritsa ntchito kusiyana kwa mitundu ΔE muyeso (yaing'ono ΔE = kuyeretsa bwino), komanso kuyesa kolemba mafuta mwachangu (kuchepa kwa inki kukuwonetsa kutsutsa bwino); Kuyesa kolimbana ndi fumbi - njira yokhazikitsira fumbi ndi kusanthula kwazithunzi, kuchotsa fumbi lakuyenda kwa mpweya kuyeza kuthamanga kwapang'onopang'ono, ndikuwunika kwa electrostatic adsorption kudzera pa resistivity pamwamba; Kuunikira kulimba — bwerezani mayeso onse mutatha kukalamba kutentha kwambiri (260°C/300°C) kapena abrasion ya Taber kuti mutsimikizire kukhazikika kwanthawi yayitali.

Nkhaniyi ikukhudza ntchito Teflon mkulu-kutentha nsalu (PTFE TACHIMATA fiberglass nsalu) m'munda Azamlengalenga. Magawo ofunikira: Kupanga zinthu zophatikizika - kutulutsa nsalu / filimu mu autoclave akamaumba, zigawo zodzipatula, malamba onyamula kutentha kwambiri kuti apange prepreg; Kutetezedwa kwa injini ndi kutentha kwapamwamba - zofunda zotchinjiriza zotentha, zotchingira zozimitsa moto, zolumikizira zosinthika zotentha kwambiri; Kutchinjiriza magetsi ndi chitetezo cha ma waya - kukulunga chingwe m'zipinda za injini ndi malo otsetsereka; Mkati mwa ndege ndi chitetezo cha moto - makatani amoto / zotchinga utsi zikukwaniritsa miyezo ya FST, zofunda zofunda zotenthetsera / zomangira; Ntchito zapamlengalenga ndi zakuthambo - ma multilayer insulation (MLI) amisonkhano, anti-cold-weld lubrication liners for solar panel deployment systems and antenna hinges, thermal control cloth.

Nkhaniyi ikufotokoza momwe PTFE zokutira zomangira kwa fiberglass nsalu gawo lapansi mu Teflon mkulu-kutentha nsalu. Direct mankhwala kugwirizana ndi zosatheka chifukwa PTFE a kopitilira muyeso-otsika pamwamba mphamvu. Kulumikizana kumatheka kudzera: Kulumikizana kwamakina (kulumikizana kwathupi) - PTFE emulsion imalowa mipata ya ulusi ndikugwira mitolo ya ulusi pambuyo pa sintering; Silane coupling agent pretreatment - amapanga molekyulu mlatho pakati pa organic glass fibers ndi organic primer; Chemical primer transition layer - pogwiritsa ntchito PAI, PPS, PES kapena PEEK resins yokhala ndi PTFE micropowder, yogwiritsidwa ntchito pambuyo pophatikizana chithandizo kuti apange wosanjikiza wosinthika; Hot-melt zomatira filimu lamination - FEP kapena PFA mafilimu (malo osungunuka 260-310 ° C) amangirira mafilimu a PTFE opangidwa kale ndi nsalu; Kapangidwe ka gradient pogwiritsa ntchito kulowetsedwa kangapo ndi ma sintering cycles - kuchepetsa pass yoyamba ndi binder/coupling agent imalowa mkati mwa ulusi, kutsatiridwa ndi PTFE impregnations yoyera, kupanga gradient yochokera ku fiberglass kupita ku PTFE yoyera.

Nkhaniyi ikupereka ubwino PTFE mkulu-kutentha nsalu monga mkulu-kutentha fyuluta TV. Mphamvu zisanu ndi chimodzi zazikulu: Kukana kutentha kwapadera (260 ° C mosalekeza, nsonga ~ 300 ° C), kupitirira PPS (190 ° C) ndi aramid (200 ° C); Kusagwira bwino kwa mankhwala motsutsana ndi zidulo, ma alkali, zosungunulira ndi ma okosijeni, zosagonjetsedwa ndi hydrolysis, aramid yopambana ndi P84 mu mpweya wowononga wa flue; Kuchita bwino kwambiri koyeretsa fumbi ndi mphamvu yotsika kwambiri yomwe imathandizira kuchotsa keke yafumbi komanso kutsika kwapang'onopang'ono; Kuchita bwino kwambiri kusefera ndi kukula kwa pore 0.1-3μm kumagwira 99.99% ya tinthu tating'ono ta PM2.5; Kusawotcha ndi LOI pamwamba pa 95%, ndi zosankha zotsutsana ndi static zomwe zilipo; Mphamvu zamakina apamwamba kuchokera ku kulimbikitsa magalasi a fiberglass, okhala ndi PTFE fiber media yoyera yopereka kusinthasintha ndi> moyo wautumiki wazaka 4. Yerekezerani bwino ndi PPS, aramid, Nomex, P84 ndi fiberglass zosefera pa kutentha, kukana mankhwala, kukana kwa hydrolysis ndi ntchito yoyeretsa.

Nkhaniyi amapereka malangizo mwadongosolo kupewa makwinya pa PTFE mkulu kutentha nsalu pa sintering. Makwinya amayamba chifukwa cha kuchepa kwamafuta osagwirizana komanso kupsinjika kosagwirizana. Mayankho amaphimba mayendedwe athunthu: zopangira gawo lapansi kuwongolera (kutsitsa kwathunthu / kuyika kutentha kuti muchepetse kupsinjika kwamkati); kuyanika ndi kuyanika (zopaka zingapo zopyapyala, kutentha pang'ono, zodzigudubuza zoyendetsa); kuwongolera ng'anjo ya sintering (1-3% overfeed for thermal shrinkage allowance, shut-loop micro-tension control, transverse kutentha kutentha mkati mwa ± 5°C, gradient preheating-sintering-cooling curve, ng'anjo zoyandama mpweya monga njira yoyenera, zodzigudubuza zopindika); kuziziritsa ndi kuyika (kuzizira pang'onopang'ono, sungani kufalikira mpaka pansi pa 100 ° C, kuzizirira kwathunthu kusanapirire); kuwunika kwapaintaneti ndikuwunika mwamphamvu komanso kuwunika kwa infrared.

Nkhaniyi ikuwunika momwe sandblasting kapena matt kumaliza chithandizo kumakhudzira mawonekedwe a pamwamba pa nsalu ya PTFE yotentha kwambiri. Zosintha zimachitika m'magawo atatu: Microscopic morphology imasintha kuchoka pagalasi losalala mpaka mawonekedwe owoneka bwino okhala ndi ma Ra/Rz okwera kwambiri, ndikupanga zomangira za 3D zomangirira. Kupaka umphumphu kumakumana ndi zoopsa: PTFE kupatulira kosanjikiza, kuwonekera kwa fiberglass gawo lapansi (kuyambitsa kutayika kwa katundu wopanda ndodo, kulowa kwa chinyezi, ndi kuchepa mphamvu zamakina), kuphatikiza ma microcracks ndi zinyalala.