Wake wazibuza ngomehluko phakathi kwekhabhoni kanyeizimpawu ze-silicon carbide mechanicalKulesi sihloko sebhulogi, sizogxila ezimfanelweni ezihlukile kanye nokusetshenziswa kwezinto ngazinye. Ekugcineni, uzoba nokuqonda okucacile kokuthi kufanele ukhethe nini i-carbon noma i-silicon carbide yezidingo zakho zokuvala, okukunika amandla okwenza izinqumo ezinolwazi kumaphrojekthi akho.
Izakhiwo Zobuso Bophawu Lwekhabhoni
I-Carbon iyinto evame ukusetshenziswa kakhuluubuso bophawu lomshiningenxa yezakhiwo zayo eziyingqayizivele. Inikeza izici ezinhle kakhulu zokugcoba, ezisiza ekunciphiseni ukungqubuzana nokuguguleka phakathi kobuso besivalo ngesikhathi sokusebenza. Ikhabhoni iphinde ibonise ukuhanjiswa okuhle kokushisa, okuvumela ukuthi ikhiphe ukushisa kahle futhi ivimbele ukwakheka kwezinga lokushisa ngokweqile endaweni yokuvala.
Enye inzuzo yobuso be-carbon seal yikhono labo lokuvumelana nokungapheleli okuncane noma ukungalungi kahle endaweni yokuhlangana. Lokhu kuvumelana nezimo kuqinisekisa ukuvalwa okuqinile futhi kunciphisa ukuvuza. I-carbon iphinde imelane namakhemikhali ahlukahlukene, okwenza ifaneleke ukusetshenziswa ezinhlotsheni ezahlukene zezimboni.
Izakhiwo Zobuso Bophawu Lwe-Silicon Carbide
I-Silicon carbide (i-SiC) ingenye indlela ethandwayo yobuso besivalo somshini ngenxa yobunzima bayo obungavamile kanye nokumelana nokuguguleka. Ubuso besivalo se-SiC bungamelana nezimo zokusebenza ezinzima, okuhlanganisa ukucindezela okuphezulu, amazinga okushisa, kanye nemidiya yokuguguleka. Ukushisa okuphezulu kwale nto kusiza ukuqeda ukushisa, kuvimbele ukuphambuka kokushisa futhi kugcine ubuqotho besivalo.
Ubuso be-SiC seal buphinde bunikeze ukumelana okuhle kwamakhemikhali, okwenza bufaneleke ukusetshenziswa ezindaweni ezigqwalisayo. Ukuphela kobuso obubushelelezi be-SiC kunciphisa ukungqubuzana nokuguguleka, kwandisa impilo ye-mechanical seal. Ngaphezu kwalokho, i-modulus ephezulu ye-SiC yokuguquguquka inikeza ukuzinza kobukhulu, okuqinisekisa ukuthi ubuso be-seal buhlala buthe tyaba futhi buhambisana ngesikhathi sokusebenza.
Umehluko Phakathi Kwekhabhoni Ne-Silicon Carbide
Ukwakheka kanye nesakhiwo
Izivalo ze-carbon mechanical zenziwe nge-graphite, uhlobo lwe-carbon olwaziwa ngezakhiwo zalo zokuzigcoba kanye nokumelana nokushisa nokuhlaselwa ngamakhemikhali. I-graphite ivame ukufuthwa nge-resin noma insimbi ukuze ithuthukise izakhiwo zayo ze-mechanical.
I-silicon carbide (i-SiC) iyinto eqinile, engagugi eyenziwe nge-silicon ne-carbon. Inesakhiwo sekristalu esifaka isandla ebukhunini bayo obuhle kakhulu, ekuqhubeni ukushisa, kanye nasekuzinzeni kwamakhemikhali.
Ukuqina Nokumelana Nokugqoka
I-silicon carbide inzima kakhulu kune-carbon, inobunzima be-Mohs obungu-9-9.5 uma kuqhathaniswa no-1-2 we-graphite. Lobu bunzima obuphezulu benza i-SiC imelane kakhulu nokuguguleka okukhuhlayo, ngisho nasezisetshenzisweni ezinzima ngemidiya yokukhuhla.
Izivalo zekhabhoni, nakuba zithambile, zisanikeza ukumelana okuhle nokuguguleka ezindaweni ezingagugi. Indlela i-graphite ezigcoba ngayo ngokwayo isiza ekunciphiseni ukungqubuzana kanye nokuguguleka phakathi kobuso bezivalo.
Ukumelana Nokushisa
Kokubili i-carbon kanye ne-silicon carbide zinezakhiwo ezinhle kakhulu zokushisa okuphezulu. Izivalo ze-carbon ngokuvamile zingasebenza emazingeni okushisa afinyelela ku-350°C (662°F), kuyilapho izivalo ze-silicon carbide zingamelana namazinga okushisa aphezulu nakakhulu, ngokuvamile adlula ku-500°C (932°F).
Ukushisa kwe-silicon carbide kuphakeme kune-carbon, okuvumela izimbobo ze-SiC ukuthi zikhiphe ukushisa ngempumelelo futhi zigcine izinga lokushisa lokusebenza liphansi endaweni yokuvala.
Ukumelana namakhemikhali
I-silicon carbide ayisebenzi ngamakhemikhali futhi imelana nokuhlaselwa yi-asidi eminingi, izisekelo, kanye nezinyibilikisi. Kuyisinqumo esihle kakhulu sokuvala izinto ezilimaza kakhulu noma ezinolaka.
Ikhabhoni iphinde inikeze ukumelana okuhle kwamakhemikhali, ikakhulukazi kuma-organic compounds kanye nama-asidi angewona ama-oxidizing kanye nezisekelo. Kodwa-ke, ingase ingafaneleki kangako ezindaweni eziqinisa kakhulu i-oxidizing noma ukusetshenziswa okune-pH ephezulu.
Izindleko Nokutholakala
Izivalo ze-carbon mechanical ngokuvamile zishibhile kunezivalo ze-silicon carbide ngenxa yezindleko eziphansi zezinto zokusetshenziswa kanye nezinqubo zokukhiqiza ezilula. Izivalo ze-carbon zitholakala kabanzi futhi zingakhiqizwa ngezinhlobo ezahlukene zama-grade kanye nokucushwa.
Ama-silicon carbide seal akhethekile kakhulu futhi ngokuvamile afika ngentengo ephezulu. Ukukhiqizwa kwezingxenye ze-SiC ezisezingeni eliphezulu kudinga amasu okukhiqiza athuthukile kanye nokulawulwa kwekhwalithi okuqinile, okufaka isandla ekwandeni kwezindleko.
Isikhathi Sokusebenzisa I-Carbon Seal
Ubuso be-carbon seal bufanele ukusetshenziswa okubandakanya ukucindezela okuphansi kuya kokuphakathi kanye namazinga okushisa. Zivame ukusetshenziswa kumaphampu amanzi, kuma-mixer, kanye nama-agitator lapho i-sealing media ingahlukumezi kakhulu noma ingcolise khona. I-carbon seal nayo ifaneleka ekuvaleni uketshezi olunezakhiwo zokugcoba ezimbi, njengoba i-carbon material ngokwayo inikeza ukuthambisa.
Ezisetshenzisweni ezinemijikelezo evamile yokuma kokuqala noma lapho ishafti ihlangabezana nokunyakaza kwe-axial, ubuso be-carbon seal bungahlangabezana nalezi zimo ngenxa yezakhiwo zabo zokuzigcoba kanye nekhono lokuvumelana nokungahambi kahle okuncane endaweni yokuhlangana.
Isikhathi Sokusebenzisa I-Silicon Carbide Seal
Ubuso be-silicon carbide seal buthandwa kakhulu ekusetshenzisweni okubandakanya ukucindezela okuphezulu, amazinga okushisa, kanye nemidiya eklwebhayo noma ebolile. Zivame ukusetshenziswa ezinqubweni zezimboni ezidinga kakhulu, njengokukhiqizwa kukawoyela negesi, ukucubungula amakhemikhali, kanye nokukhiqizwa kukagesi.
Izivalo ze-SiC nazo zifanelekile ekuvaleni uketshezi oluhlanzekile kakhulu, njengoba zingangcolisi izikhala ezivalwayo. Ezisetshenzisweni lapho izikhala ezivalwayo zinezakhiwo ezimbi zokugcoba, i-coefficient ephansi ye-SiC yokungqubuzana kanye nokumelana nokuguguleka kwenza kube ukukhetha okuhle kakhulu.
Uma uphawu lomshini luba nokuguquguquka kwezinga lokushisa okuvamile noma ukushaqeka kokushisa, ukuguquguquka okuphezulu kokushisa kwe-SiC kanye nokuqina kobukhulu kusiza ekugcineni ukusebenza kophawu kanye nokuphila isikhathi eside. Ngaphezu kwalokho, uphawu lwe-SiC lufaneleka kakhulu ekusetshenzisweni okudinga impilo ende yesevisi kanye nokugcinwa okuncane ngenxa yokuqina kwalo okungavamile kanye nokumelana nokuguguleka.
Imibuzo Evame Ukubuzwa
Yisiphi isivalo semishini esivame ukusetshenziswa kakhulu?
Ikhabhoni isetshenziswa kakhulu ezivalweni zemishini ngenxa yezindleko zayo eziphansi kanye nokusebenza okwanele ezinhlotsheni eziningi.
Ingabe izimbozo ze-carbon ne-silicon carbide zingasetshenziswa ngokushintshana?
Kwezinye izimo, yebo, kodwa kuncike ezidingweni ezithile zohlelo lokusebenza, njengokushisa, ingcindezi, kanye nokuhambisana koketshezi.
Ekuphetheni
Uma ukhetha phakathi kwezivalo ze-carbon kanye ne-silicon carbide mechanical, cabangela izidingo ezithile zokusetshenziswa. I-Silicon carbide inikeza ubulukhuni obuphezulu kanye nokumelana namakhemikhali, kuyilapho i-carbon inikeza amakhono angcono okusebenza okomile.
Isikhathi sokuthunyelwe: Julayi-15-2024