Yog tias koj siv lub tshuab ua kom sov rau ntawm cov khoom ntim khoom noj, kab lub tais ci, lossis npog cov khoom noj khoom haus nrog PTFE high-temperature daim kab xev
PTFE paub txog nws cov cua sov zoo heev, tab sis 'heat resistant' tsis txhais hais tias 'unlimited'. Kev ntsuas kub ntau dhau tuaj yeem ua rau cov khoom siv degradation - thiab qhov phem tshaj plaws, tso pa tawm cov pa phem uas yuav tsum tsis txhob kov cov zaub mov.
Aokai PTFE tau muab khoom noj-qib PTFE tapes rau xyoo. Phau ntawv qhia no piav qhia txog thaj chaw muaj kev nyab xeeb, lub sijhawm txwv, thiab cov kev cai tswj hwm (FDA, EU) rau daim ntawv thov kev sib cuag zaub mov.
Kev txwv kub - Peb qhov chaw tseem ceeb
Qeb Kub
Tus nqi
Ntsiab Lus
Kev khiav hauj lwm kub tsis tu ncua
≤ 260 ° C
Thawj qhov txwv. Cov kab xev tuav ruaj khov rau kev ua haujlwm ntev ntawm qhov kub thiab txias. Haum rau ci qhov cub, cua sov sealers, thiab cov khoom kom qhuav.
Short-Term Peak Temperature
≤ 300 ° C
Tsuas yog tso cai rau lub sijhawm luv luv (piv txwv li, 5-10 feeb). Lub sijhawm ntev ntawm qhov kub ntawm 260 ° C thiab 300 ° C ua rau cov khoom siv aging thiab ua rau muaj kev pheej hmoo loj heev.
Txwv kub
> 327 ° C
PTFE pib decompose saum toj no qhov kub thiab tej zaum yuav tso pa lom (xws li perfluoroisobutylene). Kev siv yog txwv tsis pub. Kev tiv thaiv hluav taws ncaj qha yuav tsum zam tag nrho.
Tsawg-kub txwv
≥ -70 ° C
Daim kab xev tseem siv tau nyob rau hauv ib puag ncig cryogenic tab sis ua nkig. dabtsi yog khoov thiab mechanical cuam tshuam yuav tsum tau tiv thaiv kom tsis txhob tawg.
Aokai PTFE tsim cov khoom noj-qib daim kab xev ntsuas kom tiv taus 260 ° C tas mus li. Peb qhia cov neeg siv khoom nrog kev siv ciam teb (piv txwv li, 270-280 ° C sib quas ntus) los ua qhov ntsuas kub ntawm qhov chaw thiab txiav txim siab qib daim kab xev tuab, uas muab cov thermal loj dua thiab qeeb degradation.
Duration txwv – Ntev npaum li cas yog 'Safe'?
Tam sim no, cov kev cai loj thoob ntiaj teb kev nyab xeeb suav nrog FDA 21 CFR 177.1550 (Tebchaws USA) thiab EU Txoj Cai No 10/2011 tsis tau teev tseg lub sijhawm tiv thaiv kev nyab xeeb rau PTFE tapes. Lub sijhawm txwv feem ntau yog txiav txim siab los ntawm kev ua haujlwm kub.
Kub
Kev Tiv Thaiv Kev Nyab Xeeb Ntev
Kev xav
≤ 260 ° C
Lub sijhawm txuas ntxiv (txog 200 hnub hais txog hauv qee qhov kev tshawb fawb)
PTFE nyob ruaj khov; tsis muaj kev ntsuas kev tsiv teb tsaws chaw
260-300 ° C
feeb (feem ntau 5-30 feeb, nyob ntawm qhov kub thiab txias)
Accelerated kev laus; degradation nto pib
> 300 ° C
Tsis pom zoo; vib nas this mus rau ob peb feeb siab tshaj plaws
Kev pheej hmoo ntawm decomposition nce sai heev
Piv txwv li:
Ci qhob cij ntawm 200 ° C rau 30 feeb - zoo tag nrho, rov siv dua rau lub hlis yog qhov zoo.
Thaum tshav kub kub sealing hnab polyethylene ntawm 180 ° C rau 1 thib ob - nyab xeeb, ntau lab lub voj voog ua tau.
Ntxuav lub tshuab cua sov los ntawm kev khiav ntawm 280 ° C rau 10 feeb - siv tau qee zaus, tab sis tsis yog txhua hnub.
Siv PTFE daim kab xev ua cov kab ci ci ntawm 300 ° C rau 2 teev - tsis muaj kev nyab xeeb; daim kab xev yuav degrade.
Kev tswj hwm kev ua raws cai - FDA & EU Standards
FDA 21 CFR 177.1550 - Cov kev cai no npog PTFE resins rau kev sib cuag zaub mov. Nws tsis tau hais meej txog lub sijhawm tshwj xeeb tab sis xav kom cov ntawv ua tiav (daim kab xev) yuav tsum tau tsim ua raws li Kev Ua Haujlwm Zoo (GMP) thiab yuav tsum tsis txhob ua rau cov zaub mov tsis zoo.
EU Txoj Cai 10/2011 - Cov kev cai no suav nrog cov ntaub ntawv yas uas xav kom nkag mus rau hauv cov zaub mov. PTFE muaj npe raws li cov khoom tso cai. Tag nrho cov kev txwv kev tsiv teb tsaws yog siv (feem ntau ≤10 mg/dm²).
Yuav ua raws li kev txheeb xyuas li cas: Kev ua raws cai txawv ntawm daim ntawv thov scenario thiab yuav tsum tau txheeb xyuas los ntawm kev xeem tsiv teb tsaws chaw . Cov kev ntsuam xyuas zoo li no yog tsim los ntawm kev sib xyaw hnyav tshaj plaws ntawm qhov kub thiab txias thiab lub sijhawm tiv thaiv hauv kev ua haujlwm tiag tiag.
Hom kev xeem
Tej yam xwm txheej
Lub hom phiaj
Kub filling / pasteurization
≤100 ° C rau 2 teev
Xyuas kom tsis txhob muaj tshuaj nkag mus rau hauv cov khoom noj uas muaj dej los yog rog
Qhov cub ci
200-250 ° C rau 30-60 feeb
Simulate ci tej yam kev mob
Kub kub lub sij hawm luv luv
Ci ntawm 260 ° C rau 15 feeb
Qhov phem tshaj plaws rau kev siv cov cua sov sealing
Ua:
✓ Siv PTFE daim kab xev nyob rau hauv 260 ° C tas mus li rau ci, sealing, thiab conveying
✓ Rau kev tu ncua luv ntawm 280-300 ° C , txwv lub sijhawm rau 5-10 feeb thiab cia txias
✓ Hloov daim kab xev thaum qhov chaw ntxhib, tsis muaj xim, lossis tsis ua haujlwm tsis zoo
✓ Khaws daim kab xev rau hauv qhov chaw huv, qhuav raws li cov chaw tsim khoom tshwj xeeb
Tsis txhob:
✗ Tsis txhob siab tshaj 327 ° C - PTFE decomposes thiab tso pa phem
✗ Tsis txhob siv hluav taws xob ncaj qha rau PTFE daim kab xev
✗ Tsis txhob siv PTFE daim kab xev siab tshaj 260 ° C rau kev sib cuag zaub mov ntev (xws li, ci txhua hnub ntawm 270 ° C)
✗ Tsis txhob hnov qab pom cov cim ntawm kev laus - yellowing, brittleness, los yog nto tawg
Thaum tsis ntseeg: Ua ib qho kev sim tsiv teb tsaws chaw ntawm koj qhov xwm txheej phem tshaj plaws thiab lub sijhawm, lossis sab laj nrog lub chaw tsim khoom rau cov ntaub ntawv thov tshwj xeeb.
Hauv cov ntsiab lus , PTFE daim kab xev kub kub muaj kev nyab xeeb rau kev sib cuag zaub mov thaum siv nyob rau hauv nws cov kev txwv: ≤260 ° C rau kev siv tas li, ≤300 ° C rau luv peaks (feeb xwb) , thiab tsis txhob siab tshaj 327 ° C. FDA thiab EU cov cai tsis tau teem sijhawm thoob ntiaj teb txwv - lub sijhawm tiv thaiv kev nyab xeeb yog nyob ntawm qhov ntsuas kub thiab yuav tsum tau txheeb xyuas los ntawm kev sim tsiv teb tsaws simulating cov xwm txheej.
Rau feem ntau daim ntawv thov zaub mov - ci, kub sealing, thiab tsis-stick liners - PTFE daim kab xev yog zoo nyob rau hauv tsis muaj kev nyab xeeb. Tab sis ib txwm ntsuas qhov ntsuas kub ntawm qhov chaw, hloov daim kab xev hnub nyoog tam sim, thiab sab laj cov ntaub ntawv ua raws cai rau cov ntawv thov.
Xav tau cov khoom noj-qib PTFE daim kab xev rau qhov kub thiab txias? Aokai PTFE muaj FDA-raws li daim kab xev nrog cov ntaub ntawv muaj kev nyab xeeb kev khiav hauj lwm ntau yam. Tiv tauj peb rau cov ntaub ntawv qhia txog kev ua haujlwm thiab kev txhawb nqa kev tsiv teb tsaws chaw.
Cov ntsiab lus no yog muab los ntawm Jiangsu Aokai New Materials Technology Co., Ltd.
Rau cov ncauj lus kom ntxaws specifications, daim ntawv thov kev taw qhia, thiab customized kev daws teeb meem rau peb tag nrho cov khoom kab, xws li PTFE high-temperature npuag, PTFE high-temperature tapes, PTFE mesh siv, seamless fusing tshuab siv, ib leeg-sided PTFE coated ntaub, high-temperature conveyor siv thiab high-temperature fiberglass xav tias dawb hu rau peb:
Peb txhawb nqa cov ntsiab lus ntawm kev tshaj lij thiab kev ncaj ncees, thiab siv zog xa cov kev daws teeb meem ib zaug thiab kev xav zoo rau txhua tus neeg siv khoom.
