Lub hauv paus rau phau ntawv
O {- ringsYog qhov tseem ceeb rau kev tswj hwm kev ua yeeb yam hauv kev siv tshuab thiab siv dav hauv tshuab, tshuaj lom neeg, aerospace, thiab lwm thaj teb. Txawm li cas los xij, thaum lub chaw ua haujlwm ua haujlwm cuam tshuam nrog cov roj hmab siab lossis roj hmab ua kom tawv nqaij, cov roj hmab ua kom loj hlob, thiab tawg ncaj qha rau cov khoom ruaj khov thiab kev nyab xeeb. Kab lus no yuav pib nrog ib puag ncig hnyav los pab kom koj nkag siab cov ntsiab lus tseem ceeb rau kev xaiv O- rings.
O {- rings nyob rau hauv high-} qhov chaw ib puag ncig
Thaum cov khoom siv tau raug rau kub siab tshaj 150 qib rau ncua sijhawm lossis cov khoom siv hluav taws xob, nws suav tias yog qhov siab- kub ua hauj lwm muaj mob. Cov kev pheej hmoo cuam tshuam nrog siab - qhov chaw nyob ib puag ncig feem ntau tshwm sim hauv ob qho chaw:
• Transient high -} kub shocks:Sudight kub nce tuaj yeem ua rau thermal tawg thiab calorification ntawm O {{0} Nplaim saum npoo;
• Ntev ntev {{}} Ti Term Thermal laus:Qhov no tuaj yeem ua rau molecular chart breakage, nce hardness, txo qis elasticity, thiab kev sib khi saum npoo tsis ua haujlwm.
Cov roj hmab zoo tib yam kev paub sib txawv thiab ntau dua kev sib tw teeb tsa ntawm qhov kub tshaj 100 degree, thiab tuaj yeem muaj carbonize thiab tawg ntawm 250 degree.
Qhov twg O - ntov cov khoom yuav tsum kuv xaiv?
Rau siab -} kev ua haujlwm kub, qhov tseem ceeb tshaj plaws yog lub peev xwm los tiv thaiv ntau qhov kub.
Fkm
Feem ntau tswj cov qauv ruaj khov nruab nrab ntawm {}}}}} kev kawm txog lub sij hawm luv, thiab 250}} kub oxidation thiab laus. Rau qhov muaj siab -} qhov chaw dej haus kub, FKM O-Rings tuaj yeem zam kev puag thiab txo qhov kev pheej hmoo ntawm to.
Ffkm
Nrog kev kub ntxhov heev los ntawm - 20℃thiab resistions corrosion los ntawm qhov siab siab xws li ntshav. Nyob rau hauv huab screadarios xws li Aerospace cav sib txuas ntxiv Chambers thiab siab ucbon} cov khoom siv kub thiab cov khoom siv hluav taws xob, ua kom cov khoom siv dog dig, ua kom muaj kev ncaj ncees ntev.
VMQ
Muaj ntau qhov kub thiab txias ntau ntawm- 60℃rau 200 degree, hloov kho cov zaub mov qis thiab kub}}}}}}} Rau cov xwm txheej xws li kev sib khi siab siab thiab tsis muaj qhov ntsuas kub ntawm cov khoom noj khoom haus uas tsis muaj kev hloov pauv, tab sis yuav tsum muaj lub zog tiv thaiv kom them nyiaj rau cov neeg kho tshuab tsis muaj zog.
O - rings hauv ntau qhov chaw nyob ib puag ncig
Roj hmab ntsaws ruaj ruaj nyob rau hauv cov tshuab roj yog feem ntau raug rau roj av, diesel,} {{0} Cov ntawv thov raug suav nrog cov tshuab roj, petrochemical twj, thiab roj roj roj.
Cov ntxhiab hydrocarbons, esters, thiab ntxiv rau roj tuaj yeem ua rau dual swb:
• Roj hmab o:Roj Molecules nkag rau cov khoom nthuav dav thiab txo qis hauv kev siv hluav taws xob, ua rau poob ntawm cov khoom siv ntawm kev sib tw.
• oxidative cracking:Cov tshuaj ntxiv hauv cov roj sib txuas nrog oxygen, ua rau cov khoom tawv tawv lossis qhov chaw tawg.
Dab tsi o {- Nplhaib cov khoom yuav tsum tau xaiv?
Vim hais tias cov roj ib puag ncig muaj nrog nruab nrab ntawm qhov chaw kub nyob ib puag ncig ntawm 100}}}}} xyoo 200℃yuav tsum tsis tsuas yog muaj qee yam ntawm qhov kub kub ua rau muaj kev kub ntxhov.
Leeg
Muaj cov roj roj tiv thaiv yooj yim thiab tuaj yeem tiv taus corrosion los ntawm divelel thiab roj hydraulic. Nws tuaj yeem daws qhov teeb meem ntawm kev pib roj ntsuab, tab sis nws yuav tsum zam nrog cov roj uas muaj ntxhiab thiab siab -}} qhov chaw ib puag ncig dej saum toj no 120 degree.
01
Dai txog HNBR
Kev tiv thaiv cov roj me xws li roj av thiab diesel, thiab tuaj yeem tiv thaiv nruab nrab}}}}} kev kawm kub nyob ib puag ncig 150 degree.
02
Fkm
Tiv taus cov roj av roj corrosion thiab tuaj yeem tiv taus kub txog 250 degree. Nws tuaj yeem daws cov kev tawg thiab o teeb meem tshwm sim los ntawm cov roj uas xeb heev.
03
Ffkm
Tau tshaj txhua hom roj roj, tsis muaj kev pheej hmoo ntawm o, thiab qhov kub siab tshaj plaws ntawm 320 degree. Nyob rau hauv huab huab tej yam kev mob xws li kev siv roj aviation roj thiab tshuab hluav taws xob hauv tshuab hluav taws xob, nws tuaj yeem tiv thaiv cov roj tshwj xeeb ntawm ntau yam roj tshwj xeeb, ua kom muaj zog xoom.
04
O {- rings hauv ntau txoj pa roj
Roj Sealing Ib puag ncig tuaj yeem faib ua inert, corrosive, thiab cov nplaim taws. Cov ntawv thov raug nyob muaj cov tshuab nqus tsev sinsonductor, hydrogen zog khoom siv, tshuaj pab roj pipelines, thiab roj tso tsheb hlau luam.
O - cov nplhaib ntsej muag sib txawv hauv cov roj sib txawv:
• Kev tsis muaj nuj nqis:Inert roj molecules yog me me thiab yooj yim nkag rau cov roj hmab matrix, ua rau muaj lub siab poob hauv cov foob pob.
• Corrosion tsis:Corrosive gases hnov nrog cov roj hmab los ntawm kev siv roj hmab / oxidation, coj mus rau cov khoom siv.
• Kev tawg kev pheej hmoo:Cov roj cua xau tuaj yeem tawg thaum raug qhib cov nplaim taws. Hydrogen tuaj yeem ua rau cov roj hmab kom nqus hydrogen, nthuav, lossis daim ntawv microcacks, txo lub neej.
Qhov twg O - ntov cov khoom yuav tsum kuv xaiv?
Epdm
Nws muaj ib lub permeability qis coefficient thiab zoo heev ozone kev tiv thaiv tsis kam. Nws cov qauv ntom ntom molecular tau txo cov pa hluav taws xob. Hauv cov ntawv thov xws li cov roj kev tiv thaiv roj, nws tuaj yeem daws tau cov kev poob siab los ntawm kev ua kom nkev pa roj.
Fkm
Tiv taus feem ntau cov kua qaub thiab cov roj av alkali, nws tuaj yeem daws cov khoom siv hauv corrosive hauv cov ntawv thov thiab cov roj acid roj thiab kua ntoo.
Ptfe
Muaj cov tshuaj lom zem heev thiab tuaj yeem tiv thaiv cov yaig ntawm cov roj pleev oxidizing muaj zog thiab tsis tshua muaj txiaj ntsig zoo li FKM kom them nyiaj rau nws cov tsis muaj txiaj ntsig.
Ffkm
Tsis tshua muaj roj tsawg permeability thiab kev kub heev thiab siv tau dav hauv lub siab xws li cov ntaub ntawv nqus dej thiab cov tshuab hluav taws xob.
O {- Kuv tsis xaiv nyob rau hauv cov chaw ib puag ncig
Qhov tseeb - ntiaj teb ib puag ncig hauv cov chaw muaj peev xwm feem ntau yog cov kev mob nyuaj "nrog ntau yam kev ntxhov siab. Thaum xaiv o - rings, yam xws li kub, nruab nrab, thiab kev sib txhuam yuav tsum tau txiav txim siab ib txhij.
High - kub thiab roj -}} muaj ib puag ncig
Cov roj cav tshuab thiab cov kab roj siv roj turbine kev paub ob qho tib si kub thiab roj corrosion. FKM nrog cov txheej txheem PTFE pom zoo, raws li nws tawm tsam roj o, txo kev sib txhuam, thiab ncua lub neej.
High - kub thiab corrosive porrosive passments
Cov tshuaj tua neeg cov tshuaj tua kab lossis tshuab hluav taws xob tshuab hluav taws xob tam sim no ob leeg kub siab thiab acidic gases. FFKM roj hmab yuav tsum tau xaiv, raws li nws ua ke nrog 320 degration kub tsis kam nrog tshuaj ruaj khov, tswj cov khoom siv elasticity nyob ntev.
Roj thiab Roj Sib xyaw ib puag ncig
Nyob rau hauv ib puag ncig uas roj vapor thiab cov roj sib cuam tshuam, xws li cov tshuaj evaporation roj, ntsuas cov roj tsis zoo thiab cov roj tsis haum.
High - qhov siab thiab cov kab ke tsis zoo
Hauv cov thooj kheej kheej kheej lossis reciprocating suab ci ntsaws ruaj ruaj, O - rings yuav tsum tsis tsuas yog tiv thaiv lub siab tab sis kuj tiv thaiv kev hnav. Peb pom zoo cov qauv sib xyaw ntawm FKM thiab PTFE, uas muaj ob lub zog siab thiab kev sib txhuam qis.
Kev txiav txim siab rau lwm qhov chaw hnyav
Dhau li ntawm siab - kub, roj {- cov kab ke, xav tau kev xaiv cov khoom siv raws li cov khoom siv:
• Tsawg - qhov chaw ib puag ncig:Hauv cov chaw nyob polar lossis cov pa nitrogen, ntsuas kub yog qhov tsis tshua muaj roj hmab, ua rau cov roj hmab dog dig thiab poob elasticity. VMQ thiab FVMQ muaj cov qes qis - kub hloov, tswj cov foob huv.
• Ozone thiab UV kis cov chaw ib puag ncig:Cov khoom siv sab nraum zoov raug rau UV thiab ozone rau ncua sij hawm yog nquag mus rau roj hmab tawg thiab kev laus. EPDM thiab HNBR yog ozone thiab UV - Tsis kam, nthuav qhia lawv lub neej kev pabcuam.
• Cov kua qaub muaj zog thiab alkali ua kua tawm:Hauv cov tso tsheb hlau luam tawm thiab reactors, o {{} rings yuav tsum tau tiv taus cov kua qaub thiab alkali corrosion. PTFE thiab FFKM yog cov tshuaj tawm dag, tiv thaiv kev tawg thiab o, ua kom ruaj khov ntsaws ruaj ruaj.
• Nqus thiab siab -} Kev Kawm Purity Abrity:Cov txheej txheem semiconductor thiab siab - Cov txheej txheem purity}}}}} _ _ _ iceation thiab qis efflux. Ffkm thiab siab-}}}}}}}}}} olecules molecules, txo cov roj ntsha thiab ua kom muaj kev nyab xeeb.
• High - Hnav thiab siab {{1} {}} tej yam ib puag ncig:O {- rings hauv cov kheej kheej kheej thiab reciprocating machinery yog qhov raug hnav. Txheej nrog PTFE lossis hnav - tsis kam ua haujlwm FKM / HNBR txhim kho cov kev coj ua tsis kam thiab txuas ntxiv lub neej.
• ntub dej thiab sov ib puag ncig:VMQ thiab FKM tswj elasticity thiab seem ruaj khov nyob rau hauv kub thiab noo ib puag ncig, ua rau lawv haum rau siv nyob rau hauv boilers thiab ste ... piping.
Tag
Thaum ntsib kev ua haujlwm sib txawv ntawm kev ua haujlwm sib txawv, nws yog ib qho tseem ceeb rau kev txheeb xyuas cov cuab yeej tsis tsim nyog ntawm O {}}}}}}} kev ua haujlwm ruaj khov thiab txhim khu kev qha kev ua haujlwm ruaj khov. Ningbo Zhonggao, ib qho chaw tsim khoom lag luam ntawm kev cai o {}} cov nplhaib, customized} rings kom tau raws li kev sib tw sib txawv. Thov koj xav tauTiv Tauj Pebrau kev daws teeb meem kev customization ntau.
