Koj puas tau xav paub txog qhov sib txawv ntawm carbon thiabsilicon carbide mechanical seals?Hauv tsab ntawv blog no, peb yuav dhia mus rau hauv cov khoom tshwj xeeb thiab kev siv ntawm txhua yam khoom siv.Thaum kawg, koj yuav muaj kev nkag siab meej txog thaum twg xaiv cov pa roj carbon lossis silicon carbide rau koj cov kev xav tau sib khi, txhawb koj kom paub txiav txim siab hauv koj cov haujlwm.
Cov khoom ntawm Carbon Foob ntsej muag
Carbon yog cov khoom siv feem ntau siv raumechanical seal ntsej muagvim nws cov khoom tshwj xeeb.Nws muaj cov yam ntxwv zoo lubricating, uas pab txo kev sib txhuam thiab hnav ntawm lub ntsej muag foob thaum ua haujlwm.Cov pa roj carbon kuj muaj cov thermal conductivity zoo, uas tso cai rau nws kom tshem tawm cov cua sov kom zoo thiab tiv thaiv kom tsis txhob muaj qhov kub thiab txias ntau dhau ntawm lub sealing interface.
Lwm qhov kom zoo dua ntawm cov pa roj carbon foob ntsej muag yog lawv lub peev xwm ua tau raws li qhov tsis zoo me ntsis lossis tsis zoo nyob rau hauv qhov chaw mating.Qhov kev hloov pauv no ua kom muaj lub foob kaw ntom ntom thiab txo qis qhov xau.Cov pa roj carbon monoxide kuj tseem tiv taus ntau yam tshuaj, ua rau nws tsim nyog rau kev siv ntau yam kev lag luam.
Cov khoom ntawm Silicon Carbide Foob ntsej muag
Silicon carbide (SiC) yog lwm qhov kev xaiv nrov rau cov tshuab foob ntsej muag vim nws qhov tshwj xeeb hardness thiab hnav tsis kam.SiC foob lub ntsej muag tuaj yeem tiv taus kev ua haujlwm hnyav, suav nrog kev kub siab, kub, thiab xov xwm abrasive.Cov khoom siv high thermal conductivity pab dissipate tshav kub, tiv thaiv thermal distortion thiab tswj kev ruaj ntseg foob.
SiC foob ntsej muag kuj muaj cov tshuaj tiv thaiv zoo heev, ua rau lawv tsim nyog siv rau hauv ib puag ncig corrosive.Lub ntsej muag du ntawm SiC txo kev sib txhuam thiab hnav, ua kom lub neej ntev ntawm cov tshuab foob.Tsis tas li ntawd, SiC's siab modulus ntawm elasticity muab qhov ruaj khov, ua kom lub ntsej muag foob nyob twj ywm thiab sib npaug thaum ua haujlwm.
Qhov sib txawv ntawm Carbon thiab Silicon Carbide
Kev sib xyaw thiab cov qauv
Carbon mechanical seals yog tsim los ntawm graphite, ib daim ntawv ntawm cov pa roj carbon uas paub txog nws tus kheej lubricating zog thiab tsis kam mus rau tshav kub thiab tshuaj tua kab mob.Cov graphite feem ntau yog impregnated nrog resin lossis hlau los txhim kho nws cov khoom siv kho tshuab.
Silicon carbide (SiC) yog ib qho nyuaj, hnav-resistant ceramic khoom muaj li ntawm silicon thiab carbon.Nws muaj cov qauv crystalline uas ua rau nws zoo heev hardness, thermal conductivity, thiab tshuaj stability.
Hardness thiab hnav tsis kam
Silicon carbide yog qhov nyuaj dua li cov pa roj carbon, nrog rau Mohs hardness ntawm 9-9.5 piv rau 1-2 rau graphite.Qhov kev nyuaj siab no ua rau SiC tiv taus cov hnav tsis zoo, txawm tias xav tau daim ntawv thov nrog cov xov xwm abrasive.
Carbon seals, thaum softer, tseem muab kev hnav zoo nyob rau hauv qhov chaw uas tsis yog abrasive.Tus kheej-lubricating xwm ntawm graphite pab txo kev sib txhuam thiab hnav ntawm lub ntsej muag foob.
Kub Resistance
Ob qho tib si carbon thiab silicon carbide muaj cov khoom kub zoo heev.Carbon seals feem ntau tuaj yeem ua haujlwm ntawm qhov kub txog 350 ° C (662 ° F), thaum silicon carbide seals tuaj yeem tiv taus qhov kub thiab txias, feem ntau tshaj 500 ° C (932 ° F).
Lub thermal conductivity ntawm silicon carbide yog siab dua li ntawm cov pa roj carbon, tso cai rau SiC cov ntsaws ruaj ruaj kom dissipate tshav kub zoo dua thiab tswj qhov kub ntawm kev khiav hauj lwm ntawm sealing interface.
Tshuaj tiv thaiv
Silicon carbide yog chemically inert thiab tiv thaiv los ntawm feem ntau cov kua qaub, hauv paus, thiab cov kuab tshuaj.Nws yog ib qho kev xaiv zoo heev rau sealing heev corrosive los yog aggressive media.
Cov pa roj carbon kuj muaj cov tshuaj tiv thaiv zoo, tshwj xeeb tshaj yog rau cov organic tebchaw thiab non-oxidizing acids thiab bases.Txawm li cas los xij, nws yuav tsis tsim nyog rau cov chaw oxidizing zoo lossis cov ntawv thov nrog cov pH siab.
Nqi thiab Muaj
Carbon mechanical seals feem ntau tsis tshua kim tshaj silicon carbide seals vim yog cov nqi qis ntawm cov khoom siv raw thiab cov txheej txheem tsim khoom yooj yim.Carbon seals yog dav siv thiab tuaj yeem tsim nyob rau hauv ntau qib thiab kev teeb tsa.
Silicon carbide seals yog tshwj xeeb thiab feem ntau tuaj ntawm tus nqi siab dua.Kev tsim cov khoom lag luam zoo SiC yuav tsum muaj cov txheej txheem tsim khoom thiab kev tswj xyuas nruj, ua rau tus nqi nce ntxiv.
Thaum Yuav Siv Carbon Seal
Cov pa roj carbon foob lub ntsej muag yog qhov zoo tagnrho rau cov ntawv thov uas muaj qhov siab qis mus rau nruab nrab thiab kub.Lawv feem ntau yog siv hauv cov twj tso kua dej, cov khoom sib tov, thiab cov agitators qhov twg cov xov xwm sealing tsis muaj abrasive lossis corrosive.Carbon seals kuj tsim nyog rau sealing kua nrog tsis zoo lubricating zog, raws li cov khoom siv carbon nws tus kheej muab lubrication.
Nyob rau hauv daim ntawv thov nrog nquag pib-nres lub voj voog lossis qhov twg cov ncej tau ntsib axial txav, cov pa roj carbon foob lub ntsej muag tuaj yeem ua raws li cov xwm txheej no vim lawv tus kheej lubricating zog thiab muaj peev xwm ua raws li qhov tsis sib xws me ntsis hauv qhov chaw mating.
Thaum siv Silicon Carbide Foob
Silicon carbide foob ntsej muag yog nyiam nyob rau hauv daim ntawv thov uas muaj kev kub ntxhov, kub, thiab abrasive los yog corrosive media.Lawv feem ntau siv rau hauv kev xav tau kev lag luam, xws li roj thiab roj ntau lawm, kev ua tshuaj lom neeg, thiab tsim hluav taws xob.
SiC cov ntsaws ruaj ruaj kuj tseem tsim nyog rau kev sib khi cov kua dej ntshiab huv, vim lawv tsis muaj kab mob hauv cov xov xwm raug kaw.Hauv cov ntawv thov uas cov xov xwm sealing muaj cov khoom siv tsis zoo, SiC qhov kev sib txhuam qis thiab hnav tsis kam ua rau nws xaiv zoo heev.
Thaum lub tshuab foob raug cuam tshuam los ntawm qhov kub thiab txias tsis tu ncua los yog thermal shocks, SiC lub siab thermal conductivity thiab seem stability pab tswj kev foob thiab kev ua haujlwm ntev.Tsis tas li ntawd, SiC cov ntsaws ruaj ruaj yog qhov zoo tagnrho rau cov ntawv thov uas yuav tsum tau ua haujlwm ntev thiab kev saib xyuas tsawg heev vim lawv qhov tshwj xeeb ruaj khov thiab tsis kam hnav.
FAQs
Yam khoom siv foob dab tsi yog siv ntau dua?
Cov pa roj carbon ntau yog siv hauv cov khoom siv kho tshuab vim nws cov nqi qis thiab kev ua haujlwm txaus hauv ntau daim ntawv thov.
Cov pa roj carbon thiab silicon carbide puas tuaj yeem siv sib hloov?
Qee zaum, yog, tab sis nws nyob ntawm qhov kev thov tshwj xeeb, xws li kub, siab, thiab dej sib haum.
Hauv kev xaus
Thaum xaiv ntawm carbon thiab silicon carbide mechanical seals, xav txog cov kev thov tshwj xeeb.Silicon carbide muaj superior hardness thiab tshuaj tiv thaiv, thaum carbon muab zoo qhuav khiav muaj peev xwm.
Post lub sij hawm: Lub Xya hli ntuj-15-2024