Ngaba wakha wazibuza ngomahluko phakathi kwekhabhoni kunyei-silicon carbide mechanical sealsKule posi yebhlog, siza kungena kwiipropati ezizodwa kunye nokusetyenziswa kwento nganye. Ekugqibeleni, uya kuba nokuqonda okucacileyo kokuba ungakhetha nini ikhabhoni okanye i-silicon carbide kwiimfuno zakho zokutywina, nto leyo ekunika amandla okwenza izigqibo ezinolwazi kwiiprojekthi zakho.
Iipropati zoBuso beSeal yeKhabhoni
Ikhabhoni yinto esetyenziswa kakhuluubuso besitywino soomatshiningenxa yeempawu zayo ezizodwa. Inika iimpawu zokuthambisa ezigqwesileyo, ezinceda ekunciphiseni ukungqubana kunye nokuguguleka phakathi kobuso besitywini ngexesha lokusebenza. Ikhabhoni ikwabonisa ukuhanjiswa kobushushu okuhle, okuyivumela ukuba ikhuphe ubushushu ngokufanelekileyo kwaye ithintele ukwakheka kobushushu obugqithisileyo kwindawo yokutywina.
Enye inzuzo yobuso be-carbon seal kukukwazi kwabo ukuhambelana neziphene ezincinci okanye ukungalungelelani komphezulu wokudibana. Oku kulungelelanisa kuqinisekisa ukutywinwa okuqinileyo kwaye kunciphisa ukuvuza. I-carbon ikwamelana neekhemikhali ezahlukeneyo, nto leyo eyenza ukuba ifaneleke ukusetyenziswa kwizicelo ezahlukeneyo zoshishino.
Iipropati zoBuso beSilicon Carbide Seal
I-silicon carbide (i-SiC) lolunye ukhetho oludumileyo kwii-seal zoomatshini ngenxa yobunzima bayo obungaqhelekanga kunye nokumelana nokuguguleka. Ii-seal zobuso ze-SiC zinokumelana neemeko ezinzima zokusebenza, kubandakanya uxinzelelo oluphezulu, amaqondo obushushu, kunye ne-abrasive media. Ukuqhuba okuphezulu kobushushu bezinto kunceda ukuphelisa ubushushu, ukuthintela ukugqwetheka kobushushu kunye nokugcina ukuthembeka kwe-seal.
Ubuso be-SiC seal bukwabonelela ngokumelana okuhle kweekhemikhali, nto leyo eyenza ukuba zifaneleke ukusetyenziswa kwiindawo ezirhabaxa. Ukugqitywa komphezulu ogudileyo we-SiC kunciphisa ukungqubana kunye nokuguguleka, nto leyo eyandisa ubomi be-mechanical seal. Ukongeza, i-modulus ephezulu ye-SiC yokuguquguquka ibonelela ngozinzo olulinganayo, ukuqinisekisa ukuba ubuso be-seal buhlala busicaba kwaye buhambelana ngexesha lokusebenza.
Umahluko Phakathi kweCarbon kunye neSilicon Carbide
Ulwakhiwo kunye nolwakhiwo
Izitywino zekhabhoni zenziwe ngegrafiti, uhlobo lwekhabhoni eyaziwa ngokuba neempawu zokuzithambisa ngokwazo kunye nokumelana nobushushu kunye nokuhlaselwa ziikhemikhali. Igrafiti idla ngokufunxwa nge-resin okanye isinyithi ukuphucula iimpawu zayo zekhabhoni.
I-silicon carbide (i-SiC) yinto eqinileyo, engagugiyo eyenziwe yi-silicon kunye ne-carbon. Inesakhiwo sekristale esinegalelo kubulukhuni bayo obuhle, ukuhanjiswa kobushushu, kunye nokuzinza kweekhemikhali.
Ukuqina kunye nokumelana nokunxiba
I-silicon carbide inzima kakhulu kune-carbon, inobunzima be-Mohs obuyi-9-9.5 xa kuthelekiswa no-1-2 kwi-graphite. Obu bunzima buphezulu benza i-SiC imelane kakhulu nokuguguleka okurhabaxa, nokuba kusetyenziswe kakhulu kwi-abrasive media.
Izitywini zekhabhoni, nangona zithambile, zisabonelela ngokumelana nokuguguleka kakuhle kwiindawo ezingagugiyo. Indlela igrafiti ezithambisa ngayo inceda ekunciphiseni ukungqubana kunye nokuguguleka phakathi kobuso bezitywini.
Ukumelana nobushushu
Zombini i-carbon kunye ne-silicon carbide zineempawu ezintle kakhulu zobushushu obuphezulu. Ii-carbon seals zinokusebenza kumaqondo obushushu afikelela kwi-350°C (662°F), ngelixa ii-silicon carbide seals zinokumelana namaqondo obushushu aphezulu, adla ngokudlula kwi-500°C (932°F).
Ukuqhuba kobushushu kwe-silicon carbide kuphezulu kune-carbon, okuvumela ii-SiC seals ukuba zikhuphe ubushushu ngokufanelekileyo kwaye zigcine ubushushu obuphantsi kwindawo yokuvala.
Ukumelana neekhemikhali
I-silicon carbide ayinayo ikhemikhali kwaye ayihlaselwa zii-asidi ezininzi, iziseko, kunye nezinyibilikisi. Lukhetho oluhle kakhulu lokuvala iindawo ezirhabaxa kakhulu okanye ezinoburhalarhume.
Ikhabhoni ikwabonelela ngokumelana okuhle kweekhemikhali, ngakumbi kwiikhompawundi ze-organic kunye nee-asidi kunye nee-bases ezingezizo i-oxidizing. Nangona kunjalo, isenokungafaneleki kangako kwiindawo ezixidizing kakhulu okanye ukusetyenziswa kwazo ezine-pH ephezulu.
Ixabiso kunye nokuFumaneka
Iiseal zekhabhoni ezisetyenziswa ngoomatshini ngokubanzi zibiza kancinci kuneeseal zekhabhoni zesilicon ngenxa yexabiso eliphantsi lezinto ezikrwada kunye neenkqubo ezilula zokuvelisa. Iiseal zekhabhoni zifumaneka ngokubanzi kwaye zinokuveliswa kwiindidi ezahlukeneyo kunye nolwakhiwo.
Iiseal ze-silicon carbide zikhethekile ngakumbi kwaye zihlala zifikelele kwinqanaba eliphezulu lexabiso. Ukuveliswa kwezinto ze-SiC ezikumgangatho ophezulu kufuna iindlela zokuvelisa eziphambili kunye nolawulo oluqinileyo lomgangatho, nto leyo enegalelo ekwandeni kweendleko.
Ixesha lokusebenzisa iCarbon Seal
Ubuso be-carbon seal bufanelekile kwiindlela zokusetyenziswa ezibandakanya uxinzelelo oluphantsi ukuya koluphakathi kunye namaqondo obushushu. Zisetyenziswa rhoqo kwiimpompo zamanzi, kwi-mixers, nakwi-agitators apho i-sealing media ingarhawuzeli kakhulu okanye ingcolise. I-carbon seals ikwafanelekile kwii-seal liquids ezineempawu zokuthambisa ezimbi, njengoko i-carbon material ngokwayo inika i-lubrication.
Kwizicelo ezinemijikelo yokumisa ukuqalisa rhoqo okanye apho ishaft ifumana intshukumo ye-axial, ubuso be-carbon seal bunokwamkela ezi meko ngenxa yeempawu zabo zokuzithambisa kunye nokukwazi ukuhambelana nokungahambi kakuhle kumphezulu wokudibana.
Ixesha lokusebenzisa iSilicon Carbide Seal
Ubuso be-silicon carbide seal bukhethwa kakhulu xa kusetyenziswa uxinzelelo oluphezulu, amaqondo obushushu, kunye ne-abrasive okanye i-corrosive media. Zisetyenziswa kakhulu kwiinkqubo zoshishino ezifuna amandla, ezinje ngokuveliswa kweoyile negesi, ukucutshungulwa kweekhemikhali, kunye nokuveliswa kombane.
Ii-SiC seals zikwafanelekile ekuvaleni ulwelo olucocekileyo kakhulu, kuba azingcolisi i-media evalwayo. Kwizicelo apho i-sealing media inezinto zokuthambisa ezingakhiyo, i-SiC's coefficient ephantsi yokungqubana kunye nokumelana nokuguguleka kwenza ukuba ibe lukhetho oluhle kakhulu.
Xa isitywino soomatshini siphantsi kokuguquguquka rhoqo kobushushu okanye ukushukunyiswa kobushushu, ukuhanjiswa kobushushu okuphezulu kweSiC kunye nokuzinza kobukhulu kunceda ukugcina ukusebenza kwesitywino kunye nobomi obude. Ukongeza, izitywino zeSiC zilungele ukusetyenziswa ezifuna ubomi obude benkonzo kunye nokugcinwa okuncinci ngenxa yokuqina kwazo okugqwesileyo kunye nokumelana nokuguguleka.
Imibuzo ebuzwa rhoqo
Zeziphi izinto zokutywina ezisetyenziswa kakhulu ngoomatshini?
Ikhabhoni isetyenziswa kakhulu kwizitywino zoomatshini ngenxa yexabiso layo eliphantsi kunye nokusebenza kwayo okwaneleyo kwiindawo ezininzi.
Ngaba izitywino zekhabhoni kunye nesilicon carbide zingasetyenziswa ngokutshintshana?
Kwezinye iimeko, ewe, kodwa kuxhomekeke kwiimfuno ezithile zesicelo, ezinje ngobushushu, uxinzelelo, kunye nokuhambelana kolwelo.
Ukuququmbela
Xa ukhetha phakathi kwe-carbon kunye ne-silicon carbide mechanical seals, qwalasela iimfuno ezithile zokusetyenziswa. I-Silicon carbide inika ubulukhuni obuphezulu kunye nokumelana neekhemikhali, ngelixa i-carbon inika amandla angcono okubaleka okomileyo.
Ixesha leposi: Julayi-15-2024