Ethylene propylene diene monomer (EPDM) yog ib qho kev ua tau zoo elastomer siv ntau yam kev sib khi, kev poob siab, thiab kev tiv thaiv corrosion. Qhov kub ntau ntawm EPDM tso cai rau EPDM kom muaj kev ruaj ntseg nyob rau hauv ntau qhov sib txawv ntawm ib puag ncig. Kev nkag siab txog qhov ntsuas kub ntawm EPDM yog qhov tseem ceeb rau kev siv cov khoom siv no kom raug.
Thaum tshav kub kub tsis kam ntawm EPDM
Lub tshav kub tsis kam ntawm EPDM roj hmab yog ib qho ntawm nws cov khoom tseem ceeb tshaj plaws. Nws qhov kev pab cuam ntev ntev yog nyob nruab nrab ntawm -50 degree thiab +150 degree . Hauv qhov ntsuas kub no, EPDM khaws nws lub cev thiab cov khoom siv kho tshuab yam tsis muaj kev puas tsuaj loj lossis degradation. Txawm hais tias siv tsis tu ncua ntawm qhov kub thiab txias, EPDM muaj lub cev zoo thiab kev ruaj ntseg tshuaj.
Lub sij hawm luv luv ntawm qhov kub ntawm EPDM
Ntxiv nrog rau qhov kev pab cuam lub sijhawm ntev, EPDM muaj qhov kub thiab txias ntawm -65 degree rau +200 degree . Hauv qhov kub thiab txias no, qhov kev ua haujlwm luv luv ntawm EPDM yuav raug cuam tshuam, tab sis tsis muaj kev puas tsuaj mus tas li. Qhov kub ntawm lub sij hawm luv luv no ua rau EPDM muaj txiaj ntsig hauv qhov kub thiab txias.
Txias tsis kam ntawm EPDM
Ntawm qhov kub thiab txias, EPDM kuj ua tau zoo heev. Ntawm qhov kub qis dua -50 degree, EPDM tseem elastic thiab tsis ua nkig thiab tawv zoo li qee yam khoom siv roj hmab. Qhov no tso cai rau EPDM los tuav nws cov khoom sib khi zoo thiab kev poob siab txawm tias nyob hauv thaj chaw txias lossis cov khoom siv uas yuav tsum tau ua haujlwm nyob rau hauv qhov kub thiab txias.
Cov yam ntxwv cuam tshuam rau qhov kub tsis kam ntawm EPDM
Txawm hais tias EPDM muaj qhov kub thiab txias, nws qhov kub thiab txias ua haujlwm tseem cuam tshuam los ntawm qee yam. Piv txwv li, kev xaiv ntawm formulation, plasticizers, fillers thiab lwm yam additives, raws li zoo raws li tus tsim ntawm lub vulcanization system, tag nrho cov muaj feem xyuam rau qhov kub thiab txias ntawm EPDM. Yog li ntawd, hauv kev siv cov tswv yim, nws yuav tsum xaiv cov khoom tsim nyog EPDM raws li kev siv ib puag ncig thiab tej yam kev mob, thiab ua kom haum cov qauv kev hloov kho kom ntseeg tau tias nws muaj kev ua tau zoo nyob rau hauv qhov kub thiab txias.
EPDM roj hmab yog siv nyob rau hauv qhov kub thiab txias ib puag ncig
Vim nws qhov kub thiab txias tsis kam, EPDM muaj ntau yam kev siv hauv ntau qhov chaw. Nyob rau hauv ib puag ncig kub, EPDM tuaj yeem siv los tsim ntau yam kub-kub ntsaws ruaj ruaj, cov kav dej thiab cov khoom sib txuas, xws li lub tsheb tso hluav taws xob, lub nplhaib sib khi rau cov kav dej kub kub, thiab lwm yam. Tsis tas li ntawd, vim nws zoo heev corrosion kuj, EPDM. Nws kuj yog siv dav hauv kev tsim cov ntsaws ruaj ruaj thiab tiv thaiv corrosion hauv ntau yam khoom siv hauv kev lag luam.
Nyob rau hauv qhov kub thiab txias ib puag ncig, EPDM roj hmab yog tsuas yog siv los tsim ntau yam cryogenic seals thiab poob siab-absorbing qhov chaw, xws li sealing rings rau LNG cia tso tsheb hlau luam, connectors rau cryogenic kua pipelines, thiab lwm yam. Vim nws zoo elasticity thiab qis-kub zog, EPDM tuaj yeem ua kom muaj kev sib khi zoo thiab ruaj khov hauv cov ntawv thov no.
Cov ntsiab lus
Raws li kev ua haujlwm siab elastomer, EPDM muaj cua sov zoo, txias thiab corrosion kuj, ua rau nws ruaj khov nyob rau hauv ntau yam kub. Paub txog nws qhov kub thiab txias yog qhov tseem ceeb rau kev xaiv thiab siv EPDM. Xaiv cov ntaub ntawv thiab cov qauv tsim nyog raws li kev siv ib puag ncig thiab cov xwm txheej, thiab ua tiav cov txheej txheem tsim nyog thiab kev kho mob, tuaj yeem muab kev ua si tag nrho rau qhov ua tau zoo ntawm EPDM roj hmab thiab ua tau raws li qhov xav tau ntawm ntau yam kev siv. Nrog kev nce qib ntawm kev siv thev naus laus zis thiab kev thov nce ntxiv, EPDM yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev txhim kho yav tom ntej.
Nov yog qee cov lus nug thiab lus teb uas nquag nug txog EPDM cov ntsaws ruaj ruaj:
EPDM foob yog dab tsi?
EPDM roj hmab foob yog cov khoom siv elastic sealing ua los ntawm EPDM roj hmab, uas feem ntau yog siv rau ntau lub sijhawm sib khi, xws li tsheb, kev tsim kho, khoom siv hauv tsev, thiab lwm yam.
Dab tsi yog qhov zoo ntawm EPDM seals?
EPDM cov ntsaws ruaj ruaj muaj cov huab cua zoo heev, ozone tsis kam, tiv thaiv tshav kub, tshuaj lom neeg thiab dej tsis kam, thiab tuaj yeem tswj xyuas kev sib khi zoo nyob rau hauv ib puag ncig hnyav. Ib qho ntxiv, nws muaj qhov ceev qis thiab zoo elasticity, uas tuaj yeem hloov mus rau cov kev xav tau ntawm kev sib khi ntawm cov duab sib xyaw.
Dab tsi yog thaj chaw thov ntawm EPDM cov ntsaws ruaj ruaj?
EPDM cov ntsaws ruaj ruaj yog siv dav hauv kev lag luam tsheb, kev tsim kho kev lag luam, cov khoom siv hauv tsev, cov kav dej thiab lwm yam. Hauv kev lag luam tsheb, nws tsuas yog siv rau kev sib khi ntawm cov cav, chassis, nres tshuab, roj tshuab, tshuab cua txias thiab lwm qhov chaw; nyob rau hauv kev tsim kho kev lag luam, nws yog tsuas yog siv rau lub sealing ntawm lub qhov rooj thiab qhov rais, curtain phab ntsa, expansion pob qij txha thiab lwm yam; nyob rau hauv cov khoom siv hauv tsev, nws yog tsuas yog siv rau kev sib khi ntawm cov khoom siv hauv tsev xws li tshuab ntxhua khaub ncaws thiab tub yees; nyob rau hauv lub raj xa dej, nws yog tsuas yog siv rau kev sib khi ntawm cov kav dej xws li cov kav dej thiab cov kav dej cua sov.
Yuav ua li cas txiav txim qhov zoo ntawm EPDM roj hmab foob?
Kev txiav txim siab qhov zoo ntawm EPDM roj hmab foob tuaj yeem pib los ntawm cov hauv qab no: ua ntej, ua tib zoo saib xyuas qhov zoo ntawm lub foob, qhov saum npoo yuav tsum du, tsis muaj npuas, tsis muaj impurities; Thib ob, xyuas qhov elasticity ntawm lub foob, ib qho zoo EPDM roj hmab foob yuav tsum muaj zoo resilience thiab compression kuj; koj tuaj yeem sim ncab lub foob dua los saib seb nws lub zog tensile thiab elongation ua tau raws li qhov yuav tsum tau ua; thiab thaum kawg koj tuaj yeem kuaj nws cov huab cua tsis kam, tiv thaiv tshav kub thiab lwm yam khoom los txiav txim nws qhov kev ua tau zoo hauv kev siv tiag tiag.
Kuv yuav tu thiab tswj EPDM cov ntsaws ruaj ruaj li cas?
Rau kev saib xyuas thiab kev saib xyuas ntawm EPDM roj hmab cov ntsaws ruaj ruaj, ua ntej ntawm tag nrho cov, kev ncaj ncees ntawm cov ntsaws ruaj ruaj yuav tsum tau xyuas tsis tu ncua, thiab yog tias nws pom tias muaj kev puas tsuaj los yog kev laus, nws yuav tsum tau hloov nyob rau hauv lub sij hawm; thib ob, qhov chaw ntawm cov ntsaws ruaj ruaj yuav tsum tau ntxuav tsis tu ncua kom nws huv si thiab tsis muaj av; compression ntau dhau los yog ncab yuav tsum zam thaum siv dua, kom tsis txhob cuam tshuam rau nws txoj haujlwm thiab kev pabcuam lub neej; thiab thaum kawg, ncaj qha tshav ntuj thiab kub ib puag ncig yuav tsum tau zam thaum lub sij hawm cia, thiaj li tsis mus ceev nws aging.