Imyenda ya PTFE yubushyuhe ni ngombwa mu nganda zihuza imyenda. Ibyingenzi byingenzi: imikandara ya convoyeur itagira umupaka kumashini ikomeza guhuza (irinda gushushe gushushe gufatana, kutagira inkari), gupfundikira inkoni hamwe nigitambaro cya padi kumashanyarazi ashyushye (kurinda platine kwanduza), umukandara wa convoyeur utudomo twa pate / ifu yipfundikizo mugihe cyo gukama / guswera). Umubyimba uri hagati ya 0.13mm (padi yoroheje) kugeza 0.55mm (imikandara iremereye cyane).

Imyenda irwanya static ya PTFE igerwaho hakoreshejwe uburyo bubiri bwingenzi: gutwikira doping (kuvanga ibyuzuza ibintu nka karubone yumukara muri emulioni ya PTFE, gukora umuyoboro wa percolation mukwibanda cyane) no kuboha insimburangingo (gushyiramo fibre ikora mumyenda ya fiberglass). Kurwanya ubuso bigenzurwa kuri 10⁵ - 10⁹ Ω. Ihame: shiraho inzira iyobora itwara ibicuruzwa bihagaze ako kanya, birinda kwirundanya kwangiza. Impamvu ni itegeko kubikorwa byiza.

Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE isize fiberglass) 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.

Kuma nintambwe ikomeye mubikorwa bya PTFE yubushyuhe bwo hejuru. Inenge zikunze kuboneka zirimo: guturika (gukama vuba cyane, uruhu rwo hejuru), kwimuka kwimuka (uduce twimuka hejuru, inkomoko yimbere imbere), pinholes / blistes (umwuka wafashwe cyangwa umwuka), ibibara byera hamwe na chalking (kwimuka kwa surfactant cyangwa fusion ituzuye), umuhondo / kokiya (ubushyuhe bukabije bwinyongeramusaruro), gusibanganya (kugabanuka kwinshi) ariko imbere imbere (uruhu rwo gufata imitego yubushyuhe), nimpande zimbitse (ingaruka yikawa-impeta). Ibisubizo bikubiyemo imyirondoro yumye, guhumeka neza, hamwe no kwitegura.

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 wafashwe), guhuza neza, gushungura neza, hamwe no kurwanya amarira / flex - ku giciro cyingufu nkeya. Ikoreshwa kuri gasketi yubushyuhe bwo hejuru, gupfunyika imiyoboro, imifuka yo kuyungurura, hamwe na kashe ya ziko.

Ibikoresho bitanduye ni ishingiro ryimikorere ya PTFE yubushyuhe bwo hejuru. Emulioni ya PTFE ifite isuku nyinshi (nta ioni yicyuma, nta bisigara bifite uburemere buke-buke) itanga ubushyuhe bwo kurwanya ubushyuhe (nta muhondo ugera kuri 260 ° C), udafite inkoni ihamye, nimbaraga za dielectric. Kuri fiberglass, E-ikirahuri kitarimo alkali (Na₂O <0.8%) gikomeza imbaraga hamwe nubushuhe mubushyuhe bwinshi; giciriritse / kinini-alkali ikirahure gitera kwangirika. Kurandura burundu ibikoresho byo kuboha birinda karubone no gusiba. Isuku igira ingaruka itaziguye mubuzima bwa serivisi, kubahiriza ibyiciro byibiribwa, no kwizerwa kwamashanyarazi.

Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE ikozweho 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 ikomeye hejuru ya 300 ° C. Kwangirika mu buryo butaziguye bibaho iyo aside hydrofluoric (HF), alkalis zishyushye cyane, cyangwa aside fosifori ishyushye yinjira mu nenge kandi igatera substrate ya fiberglass. Kumurimo ukabije wimiti, koresha firime nziza ya PTFE idafite fiberglass.

Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE isize fiberglass) ifite imbaraga zo guhangana nubushyuhe bwumuriro muburyo busanzwe bwa -70 ° C kugeza 260 ° C. Irashobora kwihanganira umuvuduko ukabije w'amagare, urugero, kuva kuri firigo -50 ° C ukagera kuri 260 ° C. Impamyabumenyi ya premium niyo irokoka ubukonje butunguranye kuva 260 ° C kugeza mumazi 10 ° C. Ariko, gutangaza ibikoresho biturutse ku bushyuhe buri hejuru ya 300 ° C (hafi ya PTFE ya 327 ° C yo gushonga) bizatera guhita bisenyuka. Fiberglass substrate itanga ihame ryimiterere; igifuniko cya PTFE nicyo kintu kigabanya.

Imyenda yubushyuhe bwo hejuru ya PTFE ikoreshwa cyane munganda zikora imiti mubikorwa birindwi byingenzi: gasketi ya flange hamwe nu miyoboro (irwanya acide ikomeye / alkalis), reaction ya tanki (irinda kwangirika kwicyuma, gusukura byoroshye), imifuka yo kuyungurura gaze ya gaz yangirika (kugeza kuri 260 ° C), kwangirika kwamashanyarazi hamwe no gufunga amashanyarazi, gupfunyika amashanyarazi. Amanota ya FDA na UL arahari.

Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE ikozweho fiberglass) itanga ibyiza bine byingenzi nko kurwanya ruswa: kutagira imiti (irwanya aqua regia, alkalis ikomeye, umusemburo), ubushyuhe bwagutse (-70 ° C kugeza 260 ° C ikomeza, impinga ya 350 ° C), guhagarara neza (<0.5% kuramba), hamwe no kutagira inkoni (gusukura byoroshye). Ikoreshwa mu miyoboro ya shimi, iminara ya desulfurizasi, ibigega byo gutoragura, n'ibikoresho by'ibiribwa / farumasi. Amanota ya FDA arahari.