Izinto zobunjineli ezibalulekileyo zokusebenzisa iibhreki ezisebenza kakuhle, ukumelana nokuguguleka, kunye nokuvelisa ngokuchanekileyo

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Fumanisa indlela i-black silicon carbide ephucula ngayo iinkqubo zeebrake zekhabhoni ngokulawula isakhiwo se-microstructure, ukuzinza kokungqubana, ukumelana nobushushu, kunye nomatshini wokuchwetheza ngokuchanekileyo. Izinto eziphambili zobuchwepheshe obuphambili bokuqhobosha iimoto.

I-ceramic yekhabhoniIinkqubo zeebhuleki zibe sisisombululo esithandwayo kwizithuthi ezisebenza kakuhle, amaqonga okubaleka, iimoto zombane eziphezulu, kunye nokusetyenziswa kweenqwelo moya apho ukwakhiwa okulula kunye nokuthembeka okugqithisileyo kobushushu kubalulekile. Xa kuthelekiswa neediski zebrake zesinyithi zendabuko, ii-carbon ceramic composites zibonelela ngeenzuzo ezibalulekileyo, kubandakanya ubunzima obuphantsi, amaqondo obushushu aphezulu okusebenza, ubomi benkonzo ende, kunye nokuziphatha okuzinzileyo kokubhuleka phantsi koxinzelelo oluphindaphindwayo. Nangona kunjalo, ezi zibonelelo azifezekiswa yi-carbon fiber yodwa. Umqolo wokwenyani osebenzayo weebhuleki ze-carbon ceramic usekwe ekwakhiweni kwesigaba se-ceramic se-silicon carbide (SiC) esiqinisa isakhiwo se-composite kwaye sizinzise ukusebenza kwe-friction. Kwimveliso yanamhlanje, i-black silicon carbide ibonakalise ukuba yenye yezona zinto zisebenzayo nezisebenzayo ze-SiC zokuxhasa le nkqubo. Ngenxa yobunzima bayo obuphezulu, ukuzinza kobushushu, ukungangeni kweekhemikhali, kunye nokusebenza kakuhle kweendleko, i-black SiC isetyenziswa kakhulu ukusuka ekulungiseleleni izinto eziluhlaza ukuya ekusetyenzisweni kokugqibela, okwenza ukuba ibe yinto ephambili enika amandla itekhnoloji ye-carbon ceramic brake ephucukileyo.

Ngexesha lokucubungula izinto,i-silicon carbide emnyama Idlala indima ebalulekileyo ekulawuleni inkqubo yokubopha i-reaction okanye inkqubo yokungena kwe-silicon elulwelo esetyenziselwa ukuvelisa iidiski zebrake ze-carbon ceramic. Kweli nqanaba, i-silicon enyibilikisiweyo ingena kwi-preform yekhabhoni enemingxuma kwaye isabela ekwenzeni i-silicon carbide, idala i-dense C/SiC composite. Ukufana kwale mpendulo kuchaphazela ngokuthe ngqo amandla, ukuqina, kunye nokuthembeka kwexesha elide. Iinxalenye ze-Black SiC zinokusebenza njengeendawo ze-nucleation ezikhuthaza ukwakheka kwe-SiC rhoqo ngelixa zinciphisa ukukhula okungaqhelekanga, i-voids yangaphakathi, okanye iziphene zesakhiwo. Ngokunceda ekulawuleni ukusasazwa kwesigaba kunye nokuphucula isakhiwo se-microstructure, ezi nxalenye ziphucula uxinano kunye nokunyaniseka koomatshini, zivumela idiski yokugqibela yebrake ukuba imelane nemithwalo enzima kunye nokujikeleza kobushushu. Olu lwakhiwo olulawulwayo lukwaphucula amandla oxinzelelo, amandla okuguquguquka, kunye nokumelana nokudinwa, ukuqinisekisa ukuba izinto zebrake zigcina ukusebenza okuzinzileyo naphantsi kweemeko ezirhabaxa, eziphindaphindwayo zokuqhobosha ezifana nezo zinamava kwiindawo zokuqhuba ngesantya esiphezulu okanye ngesantya esiphezulu.

Ngokwembono yokusebenza, isigaba se-silicon carbide esenziwe ngoncedo lwe-black SiC simisela ngokuthe ngqo uninzi lweempawu ezibalulekileyo zokusebenza kweenkqubo zebrake ze-carbon ceramic. Ubulukhuni obungaqhelekanga be-silicon carbide bubonelela ngokumelana nokuguguleka okugqwesileyo, kunciphisa kakhulu ukulahleka kwezinto kwi-interface yokungqubana phakathi kwediski kunye ne-brake pad. Kwangaxeshanye, ukuqhuba kwayo okuphezulu kobushushu kwenza ukuba ubushushu buqhume ngokukhawuleza, kuthintele ubushushu obugqithisileyo kwaye kunciphise umngcipheko wokuguguleka kwebrake. I-coefficient ephantsi yokwandiswa kobushushu ye-SiC ikwaphucula ukumelana nokuthuthumela kobushushu, ivumela i-brake disc ukuba inyamezele utshintsho olukhawulezileyo lobushushu ukusuka kwiimeko ezingqongileyo ukuya kumakhulu aliqela okanye nangaphezulu kwe-1000 degrees Celsius ngaphandle kokuqhekeka okanye ukuguqulwa. Ezi mpawu zidibeneyo ziqinisekisa i-coefficient yokungqubana ezinzileyo, impendulo ethambileyo yokubhuleka, ingxolo ephantsi kunye nokungcangcazela, kunye nobomi benkonzo ende kakhulu xa kuthelekiswa neebrake zesinyithi eziqhelekileyo. Ngenxa yoko, i-black silicon carbide ayincedi nje kuphela ekuqiniseni isakhiwo kodwa nakwikhuseleko kunye nokuhambelana kokusebenza kokubhuleka.

Ngaphandle kwegalelo layo ekwakhiweni kwezinto ezidityanisiweyo kunye nokusebenza kakuhle, i-black silicon carbide ibaluleke ngokulinganayo kwizigaba zokwenziwa kunye nokugqitywa kwezinto ze-carbon ceramic. Nje ukuba zifakwe kwaye zibotshelelwe, iidiski zebrake ze-C/SiC ziba nzima kakhulu kwaye kunzima ukuzicubungula kusetyenziswa izixhobo eziqhelekileyo. Ii-abrasives zemveli zihlala zibonisa ukuguguleka ngokukhawuleza okanye ukusebenza okuphantsi, okukhokelela kwiindleko eziphezulu zemveliso kunye nomgangatho ophantsi womphezulu.I-Black SiCNangona kunjalo, ii-abrasives zibonelela ngemiphetho ebukhali yokusika, amandla okusila aqinileyo, kunye nokuqina okugqwesileyo, okwenza ukuba zilungele ukusila ngokuchanekileyo, ukubumba, ukunciphisa imiphetho, kunye nemisebenzi yokugqiba umphezulu. Ezi abrasives zivumela abavelisi ukuba bafikelele ekunyamezeleni okuqinileyo, uburhabaxa bomphezulu obugudileyo, kunye nokuba tyaba ngokuchanekileyo, konke oku kubalulekile ekujikelezeni okulinganayo kunye nokuqhobosheka okukhuselekileyo. Ngenxa yokulinganisela kwayo okuhle phakathi kokusebenza kunye neendleko, i-black silicon carbide iye yaba yenye yezona zinto zisetyenziswa kakhulu kwi-brasive machining ye-carbon ceramic brake kuzo zombini iimveliso ezinkulu zemizi-mveliso kunye nemveliso ekhethekileyo ephezulu.

I-black silicon carbide ikwasetyenziswa kakhulu kuphando, uphuhliso, kunye novavanyo lomgangatho wezixhobo zokuqhobosha eziphambili. Ubungakanani obahlukeneyo begrit kunye namanqanaba epowder kuvumela iinjineli ukuba zilinganise iimeko zokuguguleka zehlabathi lokwenyani, zivavanye uzinzo lokungqubana, kwaye zifunde ukusebenzisana phakathi kweendawo ze-ceramic kunye nee-brake pads. Kwiindawo zelebhu, i-black SiC inceda ukuvavanya ukumelana nokuqhobosha, ukuphucula ukwakheka, kunye nokuphucula izakhiwo ezidityanisiweyo ukuze kufezekiswe ukuqina okungcono kunye nokuziphatha kobushushu. Ukuguquguquka kwayo kuyenza ifaneleke kuphuhliso lweeprototype, uvavanyo oluncinci, kunye nokuphuculwa kwenkqubo eqhubekayo. Oku kuthetha ukuba i-black silicon carbide ayisebenzi nje kuphela njengemveliso enokusetyenziswa kodwa ikwasetyenziswa njengesixhobo sobuchule sokuvelisa izinto ezintsha, inceda abaphandi ukuba batyhale imida yetekhnoloji ye-carbon ceramic brake kwaye baphuhlise izixhobo zesizukulwana esilandelayo kwizicelo ezifuna ngakumbi.

Njengoko amashishini eemoto kunye nokuhambahamba eqhubeka esiya kuyilo olukhaphukhaphu, ukusebenza kakuhle okuphezulu, kunye nokuthembeka okuphuculweyo, ukwamkelwa kweenkqubo zeebhuleki zekhabhoni zeseramikhi kulindeleke ukuba kwande ngaphaya kweemoto ezinkulu ukuya kwizithuthi zombane, amaqonga azimeleyo, imidlalo yeemoto, kunye nezixhobo zeenqwelo moya. Le mfuno ikhulayo igxininisa ngakumbi ukubaluleka komgangatho ophezulu.i-silicon carbideizixhobo ezinokubonelela ngokusebenza okuqhubekekayo ngelixa zigcina ukwenzeka kwezoqoqosho. Ngokudibanisa kwayo okugqwesileyo kobunzima, ukuzinza kobushushu, ukusebenza kakuhle kokucubungula, kunye nokufikeleleka, i-black silicon carbide ihlala yenye yezona ndlela zisebenzayo nezinokwandiswa kubavelisi kwihlabathi liphela. Ukusuka kubunjineli bezinto kunye nokubopha i-reaction ukuya kumatshini ochanekileyo kunye novavanyo lokusebenza, i-black SiC ixhasa inyathelo ngalinye lekhonkco lemveliso, okwenza ukuba ibe ngaphezulu kakhulu kune-abrasive okanye isongezo esilula. Ngokwenyani, sisixhobo sobunjineli esisisiseko esiqhubeka nokuqhuba ukuvela kweenkqubo zeebhuleki ze-ceramic zekhabhoni ezikhuselekileyo, ezikhaphukhaphu, nezihlala ixesha elide.