PTFE Coated O-Ring
Dab tsi yog PTFE Coated O-Rings
PTFE-coated O-rings yog cov ntsaws ruaj ruaj uas muaj cov roj hmab O-ring core (piv txwv li, NBR, FKM, EPDM, VMQ) raws li elastic substrate, tshaj uas nyias, sib xws, thiab ruaj khov zaj duab xis ntawm polytetrafluoroethylene (PTFE) yog siv. Cov qauv no muab cov khoom zoo ntawm ob qho tib si, uas ua rau muaj kev ua tau zoo tshwj xeeb.
Cov cheeb tsam tseem ceeb ntawm daim ntawv thov
Vim lawv cov khoom zoo, PTFE-coated O-rings tau siv dav hauv qhov xav tau ib puag ncig nrog tshwj xeeb sealing yuav tsum:
Chemical & Petrochemical Kev Lag Luam:
Sealing li qub, twj tso kua mis, reactors, thiab cov yeeb nkab flanges tuav cov xov xwm corrosive zoo li muaj zog acids, muaj zog alkalis, muaj zog oxidizers, thiab cov kuab tshuaj organic.
Sealing nyob rau hauv high-purity tshuaj xa cov tshuab kom tsis txhob muaj kab mob.
Pharmaceutical & Biotechnology Kev Lag Luam:
Sealing rau txheej txheem cov cuab yeej xav tau kev huv huv, tsis muaj leaching, thiab tsis muaj kab mob (xws li, bioreactors, fermenters, purification systems, filling kab).
Sealing resistant rau hnyav tshuaj ntxuav thiab high-temperature chav siv nyob rau hauv CIP (Clean-in-Place) thiab SIP (Sterilize-in-Place) txheej txheem.
Khoom noj khoom haus & dej haus kev lag luam:
Cov ntsaws ruaj ruaj rau cov cuab yeej ntsib FDA / USDA / EU cov cai tswj kev noj zaub mov (piv txwv li, cov khoom siv ua khoom, muab tub lim, kav dej).
Resistant rau zaub mov-qib cov neeg ua haujlwm tu thiab tshuaj tua kab mob.
Semiconductor & Electronics Kev Lag Luam:
Cov ntsaws ruaj ruaj rau cov dej ultrapure (UPW) thiab cov tshuaj purity siab (acids, alkalis, cov kuab tshuaj) xa thiab tuav cov tshuab, yuav tsum muaj cov khoom tsim qis heev thiab cov hlau ion leaching.
Cov ntsaws ruaj ruaj rau lub tshuab nqus tsev thiab cov khoom siv plasma (yuav tsum tau qis qis).
Automotive Kev Lag Luam:
Kev sib khi hauv qhov chaw kub kub xws li turbocharger systems thiab EGR systems.
Cov ntsaws ruaj ruaj yuav tsum muaj kev sib txhuam tsis tshua muaj thiab tshuaj lom neeg hauv kev sib kis thiab cov tshuab roj.
Daim ntawv thov nyob rau hauv lub zog tshiab lub tsheb roj teeb txias tshuab.
Aerospace & Kws muaj txuj ci:
Cov ntsaws ruaj ruaj yuav tsum muaj kev ntseeg siab, huab cua kub tsis kam, thiab tsis kam rau cov roj tshwj xeeb / cov kua dej hauv hydraulic, cov roj hluav taws xob, thiab kev tswj hwm ib puag ncig.
Kev lag luam dav dav:
Cov ntsaws ruaj ruaj rau pneumatic thiab hydraulic thooj voos kheej kheej yuav tsum muaj kev sib txhuam qis, lub neej ntev, thiab hnav tsis kam (tshwj xeeb tshaj yog rau kev kub ceev, siab zaus reciprocating motion).
Cov ntsaws ruaj ruaj rau ntau yam li qub, twj tso kua mis, thiab cov khoom sib txuas uas xav tau cov tshuaj tiv thaiv thiab cov khoom tsis-stick.
Cov ntsaws ruaj ruaj rau cov khoom siv nqus tsev vacuum (yuav tsum tau qis qis).
Tshwj xeeb zoo thiab kev ua tau zoo yam ntxwv
Lub ntsiab kom zoo dua ntawm PTFE-coated O-rings yog nyob rau hauv kev txhim kho kev ua tau zoo los ntawm lawv cov qauv:
Exceptional Chemical Inertness:
Ib qho ntawm qhov zoo tshaj plaws. PTFE nthuav tawm qhov ua tau zoo rau txhua yam tshuaj (xws li cov kua qaub muaj zog, muaj zog alkalis, aqua regia, organic solvents, thiab lwm yam), uas feem ntau cov roj hmab substrates tsis tuaj yeem ua tiav ib leeg. Cov txheej txheej zoo cais cov corrosive xov xwm los ntawm cov tub ntxhais roj hmab sab hauv, nthuav dav O-ring daim ntawv thov ntau yam hauv thaj chaw tshuaj lom neeg.
Tsis tshua muaj coefficient ntawm kev sib txhuam (CoF):
Qhov txiaj ntsig tseem ceeb. PTFE muaj ib qho ntawm cov nqi qis tshaj CoF ntawm cov ntaub ntawv paub zoo (feem ntau 0.05-0.1). Qhov no ua rau coated O-rings excel nyob rau hauv dynamic sealing daim ntaub ntawv (xws li, reciprocating piston rods, rotating shafts):
Qhov tseem ceeb txo qhov tawg thiab khiav kev sib txhuam.
Minimizes kev sib txhuam-induced cua sov thiab hnav.
Extens foob lub neej (tshwj xeeb tshaj yog nyob rau hauv high-speed, high-frequency daim ntaub ntawv).
Txhim kho qhov system zog efficiency.
Kev khiav hauj lwm kub ntau yam:
PTFE txheej nws tus kheej tswj kev ua haujlwm thoob plaws qhov kub thiab txias ntawm -200 ° C txog + 260 ° C (lub sijhawm luv txog + 300 ° C). Qhov no tseem txuas ntxiv qhov ntsuas kub ntawm lub hauv paus roj hmab O-ring (xws li, NBR puag feem ntau txwv rau ~ 120 ° C, tab sis nrog PTFE txheej tuaj yeem siv rau qhov kub siab dua, nyob ntawm cov roj hmab xaiv). Tsawg-kub kev ua tau zoo kuj tau lees paub.
Cov Khoom Zoo Tsis-Stick thiab Non-Wettability:
PTFE muaj lub zog qis heev, ua rau nws tiv taus adhesion thiab tsis ntub dej los ntawm cov kua dej thiab roj. Qhov no ua rau:
Txo fouling, coking, los yog adhesion ntawm media residues ntawm sealing nto.
Kev tu yooj yim, tshwj xeeb tshaj yog haum rau kev tu cev zoo li zaub mov thiab chaw muag tshuaj.
Kev ruaj ntseg sealing kev ua tau zoo txawm tias nrog cov xov xwm viscous.
High Cleanliness thiab Low Leachables:
Qhov du, ntom ntom PTFE txheej saum npoo txo qis cov leaching ntawm cov khoom, cov khoom ntxiv, lossis cov khoom tsis muaj molecular-yuag. Qhov no yog ib qho tseem ceeb heev rau ultra-siab purity daim ntaub ntawv nyob rau hauv semiconductors, pharma, biotech, thiab zaub mov & dej haus, zoo tiv thaiv cov khoom paug.
Zoo hnav tsis kam:
Thaum PTFE qhov kev coj ua tsis zoo yog qhov tsis zoo, nws cov CoF tsis tshua muaj txiaj ntsig txo qis hnav. Thaum ua ke nrog cov khoom siv roj hmab tsim nyog (kev txhawb nqa thiab kev ua haujlwm zoo) thiab tsim nyog nto / lubrication, coated O-rings feem ntau pom zoo hnav tsis kam dua li cov roj hmab liab qab O-rings hauv kev siv dynamic.
Txhim kho tshuaj tiv thaiv ntawm Rubber Substrate:
Cov txheej txheej tiv thaiv cov roj hmab sab hauv los ntawm kev tawm tsam tawm tsam, tso cai rau kev siv cov khoom siv roj hmab nrog cov khoom zoo dua qub (xws li elasticity lossis nqi, piv txwv li, NBR) hauv cov xov xwm uas ib txwm o, tawv, lossis degrade cov roj hmab. Nws ua tau zoo "armors" cov roj hmab elasticity nrog PTFE cov tshuaj tiv thaiv.
Zoo Vacuum Compatibility:
Cov txheej txheem tuab PTFE muaj qhov ntom ntom ntom ntom thiab inherently qis qis qis, ua ke nrog elasticity ntawm cov roj hmab core, muab lub tshuab nqus tsev zoo.
3. Kev txiav txim siab tseem ceeb
Tus nqi: siab dua tus qauv roj hmab O-rings.
Yuav tsum muaj kev txhim kho: Yuav tsum tau ua tib zoo tuav kom tsis txhob ua rau cov txheej txheem nrog cov cuab yeej ntse. Kev teeb tsa grooves yuav tsum muaj cov hlau lead-hauv chamfers txaus thiab ua kom tiav qhov chaw du.
Txheej Kev Ncaj Ncees: Qhov zoo ntawm txheej (adhesion, uniformity, tsis muaj pinholes) yog qhov tseem ceeb. Yog tias cov txheej txheem raug ua txhaum cai, cov roj hmab uas raug pov tseg poob nws cov tshuaj tiv thaiv zoo dua.
Compression Set: Feem ntau yog nyob ntawm cov roj hmab substrate xaiv. Lub txheej nws tus kheej tsis muab compressive resilience.
Dynamic Service Life: Txawm hais tias muaj ntau yam zoo tshaj rau cov roj hmab liab qab, cov txheej yuav nws thiaj li hnav tawm nyob rau hauv lub sij hawm ntev, loj reciprocating los yog rotary motion. Xaiv cov roj hmab hnav-tiv taus ntau dua (piv txwv li, FKM) thiab kev tsim kho kom zoo tuaj yeem ua rau lub neej ntev.
Cov ntsiab lus
Tus nqi tseem ceeb ntawm PTFE-coated O-rings nyob rau hauv yuav ua li cas PTFE txheej imparts superior tshuaj inertness, tsis tshua muaj coefficient ntawm kev sib txhuam, ib tug dav kub ntau yam, tsis-stick zog, siab huv si, thiab substrate tiv thaiv rau tsoos roj hmab O-rings. Lawv yog ib qho kev daws teeb meem zoo tshaj plaws rau kev xav tau kev sib tw sealing uas muaj zog corrosion, siab huv, tsis muaj kev sib txhuam, thiab qhov kub thiab txias. Thaum xaiv, nws yog ib qho tseem ceeb uas yuav tsum xaiv cov khoom siv roj hmab uas tsim nyog thiab txheej txheej tshwj xeeb raws li cov ntawv thov tshwj xeeb (xws li xov xwm, kub, siab, dynamic / zoo li qub), thiab xyuas kom muaj kev txhim kho kom raug thiab kev saib xyuas kom ruaj ntseg txheej thiab sealing kev ua tau zoo.
Cov lus hauv qab no qhia txog cov yam ntxwv tseem ceeb thiab kev siv ntawm PTFE-coated O-rings:
