PTFE muaj kev ua haujlwm siab thiab qis qis, tshuaj lom neeg ruaj khov, hluav taws xob zoo, tsis muaj adhesion, huab cua tsis kam, incombustibility thiab zoo lubrication.Nws tau siv nyob rau hauv aerospace teb mus rau ntau yam ntawm cov khoom siv niaj hnub, thiab tau dhau los ua cov khoom siv tseem ceeb los daws ntau cov thev naus laus zis tseem ceeb hauv kev tshawb fawb niaj hnub thiab thev naus laus zis, kev lag luam tub rog thiab kev siv pej xeem.
Daim ntawv thov hauv kev tiv thaiv corrosion thiab txo qis Raws li cov ntaub ntawv txheeb cais ntawm cov teb chaws tsim, kev lag luam poob los ntawm kev xeb nyiaj rau kwv yees li 4% ntawm tag nrho cov txiaj ntsig kev lag luam hauv teb chaws txhua xyoo hauv cov teb chaws niaj hnub no.Muaj ntau qhov xwm txheej hauv kev tsim tshuaj lom neeg yog tshwm sim los ntawm cov tshuaj lom neeg tshwm sim los ntawm cov khoom siv corrosion thiab nruab nrab to.Nws tuaj yeem pom tau tias qhov kev poob thiab kev puas tsuaj los ntawm corrosion yog qhov hnyav, uas tau ua rau tib neeg xav paub ntau.
PTFE kov yeej qhov tsis zoo ntawm cov yas, hlau, graphite thiab ceramics, xws li tsis zoo corrosion kuj thiab yooj.Nrog nws zoo heev kub thiab tsis kub tsis kam thiab corrosion kuj, PTFE yuav siv tau nyob rau hauv hnyav tej yam kev mob xws li kub, siab thiab nruab nrab, thiab tau los ua lub ntsiab corrosion-resistant khoom nyob rau hauv roj av, tshuaj, textile thiab lwm yam lag luam.PTFE yeeb nkab yog tsuas yog siv raws li cov yeeb nkab conveying thiab tso pa ntawm corrosive gas, kua, chav los yog tshuaj.Lub laub yeeb nkab ua los ntawm PTFE dispersion resin yog lined rau hauv cov yeeb nkab steel los tsim ib lub hauv ob sab phlu, los yog PTFE laub puab cov yeeb nkab yog txhawb los ntawm winding iav fiber ntau, los yog PTFE laub yeeb nkab yog txhawb los ntawm weaving thiab winding steel hlau, uas muaj peev xwm hloov tau cov kua. nruab nrab nyob rau hauv siab.Raws li ib feem tseem ceeb ntawm hydraulic kis tau tus mob, nws tuaj yeem txhim kho lub zog tawg ntawm qhov kub thiab txias thiab muaj qhov zoo ntawm kev qaug zog.Vim tias qhov sib txhuam coefficient ntawm PTFE cov khoom yog qhov qis tshaj ntawm cov ntaub ntawv paub zoo, nws ua rau cov khoom siv PTFE yog cov khoom siv zoo tshaj plaws rau roj-dawb lubrication ntawm cov khoom siv kho tshuab.Piv txwv li, cov khoom siv hauv kev lag luam ntawm cov ntawv ua, textile, zaub mov, thiab lwm yam yog yooj yim polluted los ntawm lubricating roj, yog li sau PTFE cov khoom daws qhov teeb meem no.Tsis tas li ntawd, qhov kev sim ua pov thawj tias ntxiv qee cov khoom ntxiv rau cov roj cav tuaj yeem txuag tau li 5% ntawm cov roj cav roj.
Lwm daim ntawv thov tseem ceeb ntawm corrosion-resistant sealing khoom PTFE hauv kev lag luam tshuaj yog cov khoom sib khi.Vim nws txoj kev ua tau zoo, PTFE yog qhov sib piv tsis tau rau txhua yam khoom sib khi.Nws tuaj yeem siv rau kev sib khi hauv ntau lub sijhawm hnyav, tshwj xeeb tshaj yog thaum kub kub thiab corrosion kuj yuav tsum tau.
Teflon daim kab xev muaj fiber ntau ntev, siab zog, siab plasticity thiab zoo calendability, thiab tuaj yeem raug kaw tag nrho los ntawm kev siv lub zog me me.Nws yooj yim rau kev khiav lag luam thiab siv, thiab nws muaj txiaj ntsig zoo dua thaum siv rau ntawm qhov tsis sib xws lossis meej.Nws muaj kev sib khi zoo, tuaj yeem txhim kho corrosion thiab nthuav nws cov ntawv thov ntau yam.PTFE packing yog siv rau kev sib khi ntawm zawv zawg qhov chaw, uas tuaj yeem tau txais kev txhim kho corrosion zoo thiab ruaj khov, thiab nws muaj qee yam compressibility thiab resilience, thiab me me kuj thaum zawv zawg.Sau PTFE sealing khoom muaj ntau yam ntawm daim ntawv thov kub, uas yog lub ntsiab hloov ntawm cov tsoos asbestos gasket khoom tam sim no.Nws kuj muaj cov khoom ntawm lub siab modulus, siab zog, creep kuj, qaug zog tsis kam, siab thermal conductivity, tsis tshua muaj coefficient ntawm thermal expansion thiab kev sib txhuam, thiab lwm yam. Ntxiv cov fillers sib txawv tuaj yeem nthuav dav daim ntawv thov ntau yam.
Post lub sij hawm: Dec-19-2022