Imyenda yo gutekesha PTFE yubushyuhe bwo hejuru itanga inyungu enye zingenzi: imikorere idakomeye (nta mavuta cyangwa ifu ikenewe, imigati yoroshye irekura neza), ubushyuhe bwagutse (-70 ° C kugeza 260 ° C, umutekano w’itanura kugeza kuri firigo), kongera gukoreshwa (ibihumbi byikiziga, byoroshye koza), ndetse no gutwara ubushyuhe (birinda gutwika, kuringaniza neza). Ibiribwa byo mu rwego rwa FDA byujuje ubuziranenge, biruta impapuro zimpu kandi biruta materi ya silicone hamwe no guhererekanya ubushyuhe bwiza hamwe nubutaka bwiza.

Imyenda ya PTFE yubushyuhe ni ngombwa mu nganda zihuza imyenda. Ibyingenzi byingenzi: imikandara ya convoyeur itagira iherezo kumashini ikomeza guhuza (irinda gushonga gushushe gufatana, kwizirika ku minkanyari), gupfundikira inkoni hamwe nigitambaro cyo gupakira kumashanyarazi ashyushye (kurinda platine kwanduza), umukandara wa convoyeur utudomo twa paste / ifu yipfundikizo mugihe cyo gukama / gushiramo icyuma). Umubyimba uri hagati ya 0.13mm (padi yoroheje) kugeza 0.55mm (imikandara iremereye cyane).

Fiberglass umwenda wo kugabanya ubushyuhe nintandaro yambere ya PTFE kaseti ya stabilite. Ku bushyuhe bwa PTFE (360-400 ° C), impungenge zo kuboha zisigaye. Niba bidakumiriwe, imyenda iragabanuka; niba bikumiriwe, imihangayiko yihishe ifunze, itera kugabanuka nyuma mugihe cyo gukiza (150-200 ° C) no gushyushya amaherezo. Igisubizo: koresha fiberglass yabanjirije ubushyuhe hamwe na <0.5% kugabanuka kuri 400 ° C, ukuraho imihangayiko isigaye mbere yo gutwikira.

Imyenda yubushyuhe bwo hejuru ya PTFE (fibre yububiko bwa PTFE) itanga imiti idasanzwe yo kurwanya imiti, hamwe na acide yibanze (harimo na aqua regia), alkalis ikomeye (mubushyuhe bwicyumba), ibishishwa kama, hamwe na okiside. Ibidasanzwe: ibyuma bya alkali byashongeshejwe hamwe nubushyuhe bwo hejuru bwa halogene yibasira PTFE. Kwangirika kwifata byerekana fiberglass kuri acide hydrofluoric na alkalis zishyushye cyane. Ubushyuhe buri hejuru ya 260 ° C bugabanya kurwanya. Kubintu byinshi byimiti, imyenda ya PTFE ikomeza guhagarara neza kandi yizewe.

Aokai PTFE yerekanye ibicuruzwa byuzuye muri APFE Shanghai 2026 (Booth 6T602, Hall 6). Ibicuruzwa byerekanwe birimo kaseti ya PTFE yongerewe imbaraga, firime nziza ya PTFE, amanota arwanya static, hamwe n'umukandara woherejwe n'ubushyuhe bwo hejuru - bikubiyemo gutunganya ibiryo, lamination ya PV, bateri ya lithium, ibikoresho bya elegitoroniki, hamwe no gupakira. Imurikagurisha rizatangira ku ya 26 Kamena.Ibicuruzwa byose bishyigikira ibisobanuro byihariye.

Imyenda ikomeye ya PTFE yubushyuhe bwo hejuru ni igizwe na fiberglass yo hejuru cyane-hamwe na PTFE. Ibyingenzi byingenzi bikwirakwizwa mu nganda (guteka ibiryo, kumisha imyenda, gutwara PCB), kurinda gusudira (gutwikira ubushyuhe, gufunga ingabo), kumanura no gushyiramo imashini zishyushye (gushushanya reberi, PV lamination), kubika amashanyarazi (moteri ya moteri, gupfunyika insinga), ibyubatswe byubatswe (ibisenge bya stade, ubuzima bwa tekinike) porogaramu (gukata laser, icapiro rya 3D).

Kuma nintambwe ikomeye mubikorwa bya PTFE yubushyuhe bwo hejuru. Inenge zisanzwe zirimo: guturika (gukama vuba cyane, uruhu rwo hejuru), kwimuka kwimuka (ibice byimuka hejuru, guhuza imbere imbere), pinholes / ibisebe (umwuka wafashwe cyangwa umwuka), ibibara byera hamwe na chalking (kwimuka kwa surfactant cyangwa fusion ituzuye), umuhondo / kokiya (gushyuha cyane) ariko imbere imbere (uruhu rwo gufata imitego yubushyuhe), nimpande zimbitse (ingaruka yikawa-impeta). Ibisubizo bikubiyemo imyirondoro yumye, guhumeka neza, hamwe no kwitegura.

PTFE emulsiyasi yimyenda ya fiberglass isaba abafasha batandukanye kugirango bagere kumyenda imwe, gufatana gukomeye, hamwe nubuso butagira inenge. Ibintu byingenzi byongeweho harimo: ibikoresho byo guhanagura (kugabanya ubukana bwubutaka, kunoza kwinjira), kubyimbye (kugenzura ububobere nuburemere bwa coating), kugenzura pH (guhagarika emulioni kuri pH 9-10), ibikoresho byo guhuza silane (kongera imbaraga kumirahuri), imfashanyo zikora firime (PFA / FEP yo gucumura), kuzuza imikorere (kwangirika kwangiza) Guhitamo biterwa na substrate nibisabwa.

Igitambaro cyagutse cya fiberglass (igitambara kinini cyane) gitandukanye cyane nigitambara gisanzwe cya fiberglass muburyo bwimyenda. Binyuze mu kirere cyumuvuduko ukabije windege, ibirahuri bikomeza ibirahuri biratandukana, bigahondagurwa, kandi bigahinduka mubudodo bunini, bumeze nkipamba. Ibi birema umwenda mwinshi, woroshye hamwe nubushyuhe bwo hejuru bwumuriro (umuyaga wugarije ikirere), guhuza neza, gushungura neza, no kunoza amarira / flex - kubiciro byimbaraga nkeya. Ikoreshwa kuri gasketi yubushyuhe bwo hejuru, gupfunyika imiyoboro, imifuka yo kuyungurura, hamwe na kashe ya ziko.

Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE isize fiberglass) hafi ya chimique, ariko ibintu bimwe na bimwe bitera kwangirika mubihe byihariye. Igitero cya PTFE kiziguye kibaho hamwe na metero ya alkali yashongeshejwe (sodium, potasiyumu), imiti ikomeye ya fluor (F₂, ClF₃) ku bushyuhe bwinshi, hamwe na alkalis ikomeye yashonga hejuru ya 300 ° C. Kwangirika mu buryo butaziguye bibaho iyo aside hydrofluoric (HF), alkalis ishyushye cyane, cyangwa aside fosifori ishyushye yinjira mu nenge kandi igatera substrate ya fiberglass. Kumurimo ukabije wimiti, koresha firime nziza ya PTFE idafite fiberglass.