Silicon carbide (SiC) chinhu chinosarudzwa mumaindasitiri akasiyana-siyana nekuda kwekuoma kwayo kukuru, kugadzikana kwekupisa, uye kuramba makemikari. Pakati pemhando dzayo dzakasiyana-siyana, machubhu esilicon carbide anokosheswa zvikuru nekuda kwekugara kwenguva refu uye kushanda kwawo munzvimbo dzakaoma. Chinyorwa chino chichaongorora maitiro akaomarara ekugadzira.machubhu esilicon carbide, vachinyanya kutarisa pakugadzirwa kwemachubhu esimbi esilicon carbide anogadzirwa ne reaction-sintered.
Kunzwisisa Silicon Carbide
Tisati tanyatsoongorora maitiro ekugadzira, zvakakosha kunzwisisa kuti chii chinonzi silicon carbide. Silicon carbide isanganiswa yesilicon nekabhoni inozivikanwa nehunyanzvi hwayo hunoshamisa. Imhando ye semiconductor inodzivirira kupisa kwakanyanya, oxidation, uye ngura. Hunhu uhwu hunoita kuti machubhu esilicon carbide akwanise kushandiswa mumaindasitiri akadai semuchadenga, mota, uye makemikari.
Kugadzirira zvinhu zvisina kugadzirwa
Danho rekutanga mukugadzira machubhu e silicon carbide kugadzirira zvinhu zvakagadziriswa. Upfu hwe silicon hwemhando yepamusoro ne carbon powder ndizvo zvinodiwa pakugadzira high-performance reaction-sintered silicon carbide (RBSC). Kuchena kweupfu uhwu kwakakosha; chero tsvina inokanganisa zvakanyanya kunaka kwechigadzirwa chekupedzisira. Pamusoro pezvo, kupararira kwehukuru hwehupfu hwezvimedu kunofanirwa kudzorwa nokungwarira. Ukuru hwezvimedu hwakafanana hunovimbisa kuti zvinhu zvinopindura zvakaenzana panguva yekupisa, zvichikonzera chigadzirwa chekupedzisira chakasimba uye chakasimba.
Zvimisikidzo uye Kusanganisa
Kana zvinhu zvakagadzirwa zvagadzirwa, danho rinotevera nderekubatanidza nekusanganisa. Maitiro aya anosanganisira kudzora chiyero cheupfu hwesilicon necarbon powder nemazvo. Chiyero chakakodzera chakakosha nekuti ndicho chinosarudza maitiro emakemikari achaitika panguva yekupisa. Kusanganisa hupfu zvakanaka kuti uve nechokwadi chekupararira kwakaenzana kwakakosha kuti uwane kuumbwa kwesilicon carbide nguva dzose. Danho iri rakakosha; chero kusawirirana musanganiswa kunogona kukonzera zvikanganiso muchubhu yekupedzisira yesilicon carbide.
Kugadzira chimiro chepombi
Kana maitiro ekubatanidza nekusanganisa apera, danho rinotevera nderekugadzira pombi. Izvi zvinogona kuitwa kuburikidza nenzira dzakasiyana-siyana, kusanganisira cold isostatic pressing (CIP) kana extrusion. CIP inosanganisira kuisa simba rakafanana pahupfu hwakasanganiswa mudiyi, zvichiita kuti chimiro chive chakaoma uye chakagadzirwa zvakanaka. Neimwe nzira, extrusion inobvumira kuumbwa kwezvinhu nguva dzose, izvo zvinonyanya kubatsira pakugadzira mapaipi marefu. Sarudzo yenzira yekugadzira inoenderana nehukuru hwaunoda uye zvinodiwa zvechigadzirwa chekupedzisira.
Maitiro ekuchenesa
Maitiro ekusvina ndipo panoitika mashiripiti. Chubhu yesilicon carbide yakagadzirwa inoiswa muchoto chinodziya zvakanyanya nekumhanya kwekupisa kwakadzora uye nguva yekubata. Munguva iyi, upfu hwesilicon necarbon powder zvinosangana nemakemikari kuti zvigadzire chimiro chesilicon carbide chakasimba. Tembiricha yekusvina inowanzova pakati pe1400°C ne2000°C, zvichienderana nekugadzirwa kwacho uye hunhu hwaunoda hwechigadzirwa chekupedzisira. Danho iri rakakosha nekuti rinoona simba remuchina uye kugadzikana kwekupisa kwechubhu yesilicon carbide.
Tekinoroji yekugadzirisa mushure mekugadzirisa
Mushure mekunge nzira yekupisa yapera, chubhu yesilicon carbide inogadziriswa mushure mekugadzirisa. Danho iri rinosanganisira kugadzira nekupukuta pamusoro kuti zvienderane nezvinodiwa chaizvo zvehukuru hwepamusoro uye hwepamusoro. Kugadzira kunogona kusanganisira kucheka, kukuya kana kuboora kuti zvisvike pahukuru hunodiwa, ukuwo kupukuta pamusoro kuchivandudza runako uye mashandiro echubhu. Kugadzira mushure mekugadzirisa kwakakosha kuve nechokwadi chekuti chigadzirwa chekupedzisira chinosangana nezvinodiwa zveindasitiri uye zvinodiwa nevatengi.
Matanho Ekudzora Hunhu
Mukati mekugadzirwa kwese, tinoshandisa matanho ekudzora mhando kuti tive nechokwadi chekuti machubhu esilicon carbide anosangana nezvinodiwa. Izvi zvinosanganisira kuyedza kuchena kwezvinhu zvakagadziriswa, kutarisa kuenderana kwemaitiro ekusanganisa, uye kuongorora panguva uye mushure mekupiswa. Matekiniki epamusoro akadai seX-ray diffraction uye scanning electron microscopy anogona kushandiswa kuongorora microstructure yesilicon carbide kuti ive nechokwadi chekuti inosangana nezvinodiwa zvekushanda.
Kushandiswa kweSilicon Carbide Tube
Machubhu esilicon carbide anoshandiswa mumhando dzakasiyana-siyana nekuda kwehunhu hwawo hwakanaka. Muindasitiri yekugadzira makemikari, anoshandiswa kutakura mvura inoparadza, nepo muindasitiri yendege, anoshandiswa sezvikamu munzvimbo dzinopisa zvakanyanya. Pamusoro pezvo, machubhu esilicon carbide ari kushandiswa zvakanyanya mukushandiswa kwesimba, senge ma reactor enyukireya nematurbine egasi, uko kugona kwawo kutsungirira mamiriro akaipisisa kunokosha.
Muchidimbu
Kugadzirwa kwemachubhu esilicon carbide inzira yakaoma uye inonzwisisika inoda kunyatsotarisisa zvakadzama padanho rega rega. Kubva pakugadzirwa kwezvinhu zvemhando yepamusoro kusvika pakudzora kwakanyatsojeka kwemaitiro ekupisa, danho rega rega rine basa rakakosha mumhando uye mashandiro echigadzirwa chekupedzisira. Sezvo maindasitiri achiramba achitsvaga zvinhu zvinogona kumira mumamiriro ezvinhu akaoma, kudiwa kwemachubhu esilicon carbide kunogona kukura, zvichiita kuti zvive zvakakosha kunzwisisa maitiro avo ekugadzira. Ingave ichishandiswa mumaindasitiri kana kushandiswa kwetekinoroji yepamusoro, machubhu esilicon carbide anomiririra kufambira mberi kukuru mune sainzi yezvinhu, zvichipa kugara kwenguva refu uye kuvimbika munzvimbo dzakasiyana-siyana.
Nguva yekutumira: Kurume-26-2025