Chinhu Chinokosha Chekugadzira Mabhureki Anoshanda Zvakanyanya, Kusapfeka, uye Kugadzira Zvakanyatsonaka
Tsananguro yeMeta
Tsvaga kuti black silicon carbide inovandudza sei masisitimu emabhureki e carbon ceramic kuburikidza nekudzora microstructure, kugadzikana kwekukweshana, kuramba kupisa, uye kugadzira nemazvo. Chinhu chakakosha kune tekinoroji yepamusoro yekubhureka kwemotokari.
Ceramic yekabhoniMasisitimu emabhureki ave mhinduro inofarirwa yemotokari dzinoshanda zvakanaka, mapuratifomu ekumhanya, mota dzemagetsi dzepamusoro, uye mashandisirwo emuchadenga uko kugadzirwa kwakareruka uye kuvimbika kwakanyanya kwekupisa kwakakosha. Zvichienzaniswa nemadiski emabhureki esimbi akaumbwa nesimbi, macomposites ecarbon ceramic anopa mabhenefiti akakosha, anosanganisira huremu hwakaderera, tembiricha yepamusoro yekushanda, hupenyu hwebasa hwakareba, uye maitiro ebhureki anogara aripo pasi pekumanikidzwa kwakawanda. Nekudaro, mabhenefiti aya haawanikwe necarbon fiber chete. Mutsindo wechokwadi wemabhureki ecarbon ceramic uri mukuumbwa kwechikamu checeramic chesilicon carbide (SiC) chinosimbisa chimiro checomposite uye chinodzikamisa mashandiro ekukweshana. Mukugadzirwa kwemazuva ano, black silicon carbide yakaratidza kuva imwe yezvinhu zveSiC zvinoshanda uye zvinobudirira zvekutsigira maitiro aya. Nekuda kwekuoma kwayo kwakanyanya, kugadzikana kwekupisa, kusagadzikana kwemakemikari, uye kushanda zvakanaka kwemari, black SiC inoshandiswa zvakanyanya kubva pakugadzirira zvinhu zvisina kugadzirwa kusvika pakugadzira kwekupedzisira, zvichiita kuti ive chinhu chakakosha chinogonesa tekinoroji yepamusoro yemabhureki ecarbon ceramic.
Munguva yekugadzirisa zvinhu,kabhidhi nhema yesilicon inoita basa rakakosha mukudzora maitiro ekubatanidza reaction kana liquid silicon infiltration anoshandiswa kugadzira ma carbon ceramic brake discs. Muchikamu chino, silicon yakanyungudutswa inopinda mu porous carbon preform uye inoita silicon carbide, zvichigadzira dense C/SiC composite. Kufanana kwekuita uku kunokanganisa zvakananga simba, kugara kwenguva refu, uye kuvimbika kwenguva refu. Black SiC particles inogona kushanda se nucleation points dzinokurudzira SiC formation inowirirana uku ichideredza kukura kusina kurongeka, ma voids emukati, kana zvikanganiso zve structure. Nekubatsira kudzora phase distribution uye kunatsa microstructure, particles idzi dzinovandudza density uye mechanical integrity, zvichibvumira final brake disc kuti itsungirire mitoro yakanyanya uye thermal cycling. Iyi controlled formation inowedzerawo compressive strength, flexural strength, uye fatigue resistance, zvichiita kuti brake components dzirambe dzakagadzikana kunyangwe mumamiriro ekurwisa, anodzokororwa e brake conditions akadai seaya anowanikwa mu race kana high speed driving environments.
Kubva pakuona kwekushanda, chikamu chesilicon carbide chakagadzirwa nerubatsiro rweblack SiC chinoona zvakananga hunhu hwakawanda hwekushanda kwakakosha kwema carbon ceramic brake systems. Kuomarara kwakanyanya kwesilicon carbide kunopa kuramba kupfeka kwakanaka, zvichideredza zvakanyanya kurasikirwa kwezvinhu pa friction interface pakati pe disc ne brake pad. Panguva imwe chete, high thermal conductivity yayo inogonesa kukurumidza kupisa, kudzivirira kupisa zvakanyanya uye kuderedza njodzi ye brake fade. Low thermal expansion coefficient yeSiC inovandudzawo thermal shock resistance, zvichibvumira brake disc kutsungirira kamwe kamwe kuchinja kwekushisa kubva mumamiriro ekunze kusvika kumazana akati wandei kana kutopfuura chiuru chedhigirii Celsius pasina kutsemuka kana kushanduka. Hunhu uhwu hwakabatana hunovimbisa friction coefficient yakagadzikana, braking response yakapfava, ruzha rwakaderera uye vibration, uye hupenyu hwebasa hwakareba zvakanyanya zvichienzaniswa nema brake esimbi akajairwa. Nekuda kweizvozvo, black silicon carbide inobatsira kwete chete mukusimbisa chimiro asiwo kuchengetedzeka kwese uye kugara kwenguva refu kwe braking performance.
Kupfuura kubatsira kwayo mukuumbwa kwecomposite uye kushanda kwayo, black silicon carbide yakakoshawo mumatanho ekugadzira nekupera kwezvikamu zve carbon ceramic. Kana zvangoiswa uye zvabatanidzwa, madhisiki eC/SiC brake anova akaomarara uye akaoma kugadzirisa uchishandisa maturusi akajairwa. Mabrasive echinyakare anowanzo ratidza kupera nekukurumidza kana kushanda zvishoma, zvichikonzera mitengo yakakwira yekugadzira uye kunaka kwenzvimbo.SiC NhemaZvisinei, mabrasive anopa mipendero yakapinza yekucheka, kugona kukuya kwakasimba, uye kugara kwenguva refu, zvichiita kuti zvive zvakanaka pakukuya, kugadzira, kucheka mipendero, uye kupedzisa pamusoro nemazvo. Mabrasive aya anobvumira vagadziri kuwana kushivirira kwakasimba, kuomarara kwenzvimbo, uye kutsetseka kwakarurama, zvese zvakakosha pakutenderera kwakaringana uye kubhureka kwakachengeteka. Nekuda kwekuenzanisa kwayo kwakanaka pakati pekushanda kwayo nemutengo, black silicon carbide yave imwe yezvinhu zvinoshandiswa zvakanyanya pakukuya mabrake e carbon ceramic mumaindasitiri makuru uye mukugadzira zvinhu zvepamusoro-soro.
Karubhidhi yeblack silicon inoshandiswawo zvakanyanya mukutsvaga, kugadzira, uye kuyedza mhando yezvinhu zvemabhureki zvemhando yepamusoro. Saizi dzakasiyana dzegrit uye magiredhi eupfu zvinogonesa mainjiniya kutevedzera mamiriro ekupfeka chaiwo, kuongorora kugadzikana kwekukweshana, uye kudzidza kudyidzana kuripo pakati pezvinhu zveceramic nemabhureki. Munzvimbo dzerabhoritari, black SiC inobatsira kuongorora kuramba kwekukweshana, kugadzirisa maformulations, uye kunatsa maumbirwo akabatanidzwa kuti awane kugara kwenguva refu uye hunhu hwekupisa. Kuchinja-chinja kwayo kunoita kuti ive yakakodzera kugadzirwa kwema prototype, kuyedza kweboka diki, uye kuvandudza maitiro nguva dzose. Izvi zvinoreva kuti black silicon carbide haingoshandi semugadziri wezvinhu chete asiwo sechishandiso chehunyanzvi, ichibatsira vaongorori kusundira miganhu yetekinoroji yemabhureki ecarbon ceramic uye kugadzira zvinhu zvechizvarwa chinotevera zvekushandisa zvakanyanya kuoma.
Sezvo indasitiri yemotokari nedzekufambisa dzichiramba dzichienda kukugadzira zvinhu zviri nyore, kushanda zvakanaka, uye kuvimbika kwakawedzerwa, kushandiswa kwemabhureki ecarbon ceramic kunotarisirwa kuwedzera kupfuura mota dzemagetsi, mapuratifomu anozvitonga, mitambo yemotokari, uye michina yemuchadenga. Kudiwa uku kuri kukura kunoratidza kukosha kwemhando yepamusoro.kabhidhi yesiliconzvinhu zvinogona kupa kushanda kwakasimba ukuwo zvichichengetedza kugona kwehupfumi. Nekusanganiswa kwayo kwakanaka kwekuoma, kugadzikana kwekupisa, kushanda zvakanaka kwekugadzirisa, uye kukwanisika kutenga, black silicon carbide inoramba iri imwe yesarudzo dzinoshanda uye dzinogona kuwedzerwa kune vagadziri pasi rese. Kubva pakugadzira zvinhu uye kubatana kwekuita kusvika pakugadzira nemazvo uye kuyedza mashandiro, black SiC inotsigira nhanho yega yega yeketani yekugadzira, zvichiita kuti ipfuure kungoshandisa abrasive kana additive. Chaizvoizvo, inyaya yeinjiniya yekutanga inoramba ichitungamira kushanduka kwemabhureki e carbon ceramic akachengeteka, akareruka, uye anogara kwenguva refu.