Muzinthu zambiri zopangira mafakitale, kuwonongeka kwa zida nthawi zonse kwakhala chinthu chofunikira kwambiri chomwe chimakhudza bwino ntchito yopanga komanso mtengo wake. Pofuna kuthetsa vutoli, zinthu zosiyanasiyana zosatha kutha zawonekera, zomwe pakati pa zinthu zomwe silikoni carbide imavala pang'onopang'ono zakhala "zokondedwa zatsopano" m'mafakitale chifukwa cha magwiridwe ake abwino kwambiri. Lero, tiyeni tifufuze zinthu zamatsengazi.
1, Kodi ndi chiyanichophimba chosagwira ntchito cha silicon carbide?
Silicon carbide (SiC) ndi chinthu chopangidwa ndi silicon ndi kaboni, chokhala ndi kapangidwe kake kapadera komanso kokhazikika. Magawo ake oyambira ndi olumikizidwa ndi SiC ndi CSi tetrahedra. Chipinda cholimba cha silicon carbide ndi choteteza chopangidwa ndi zinthu za silicon carbide kuti chiteteze mkati mwa zida kuti zisawonongeke. Chingapangidwe m'mawonekedwe osiyanasiyana, monga mphete za ceramic, ma ceramic liners, ndi zina zotero, kenako nkuyikidwa pamakoma amkati mwa zida monga mapaipi, matupi a mapampu, ndi malo osungira zinthu omwe amatha kukokoloka ndi kukangana.
2, Ubwino wa silicon carbide yolimba yomwe singathe kusweka
1. Kulimba kwambiri komanso kukana kuvala bwino: Kulimba kwa silicon carbide ceramics ndi kwakukulu kwambiri, kwachiwiri kuposa diamondi yolimba kwambiri. Kulimba kwakukulu kumeneku kumapangitsa kuti ikhale yolimba kwambiri pakuwonongeka, yotha kupirira kukokoloka kwachangu komanso kukangana kwamphamvu kwa zipangizo, zomwe zimakulitsa kwambiri moyo wa zida, zomwe zimapangitsa kuti ikhale chinthu chabwino kwambiri cholimba pakuwonongeka kwambiri. Poyerekeza ndi zipangizo zina wamba zolimba, silicon carbide kuvala bwino ili ndi ubwino waukulu pakukana kuvala, zomwe zingachepetse nthawi yokonza ndi kusintha zida zamabizinesi komanso kuchepetsa ndalama zopangira.
2. Kulemera kochepa komanso kopepuka: Silicon carbide ili ndi kukhuthala kochepa kwambiri kuposa zitsulo monga chitsulo. Mwachitsanzo, kukhuthala kwa silicon carbide ceramics ndi 3.0g/cm³ yokha, pomwe kukhuthala kwa silicon carbide ceramics yopanda kupanikizika ndi 3.14-3.0g/cm³. Pankhani ya kuchuluka komweko, kulemera kwa silicon carbide yolimba yomwe singathe kutayika ndi yopepuka, zomwe sizimangothandiza kunyamula ndi kukhazikitsa, komanso zimachepetsa katundu wamakina a zida, zomwe zimapangitsa kuti zida zizigwira ntchito mosavuta, komanso zimathandiza kuti kuyika mapaipi ndi zida zina kukhale kokwera komanso kotalikirapo.
3. Kukana kutentha kwambiri: Ili ndi kukhazikika kwabwino kwa kutentha ndipo kapangidwe kake ka kristalo ka silicon carbide kamailola kupirira kutentha kwambiri, ndi kutentha kotentha mpaka 1350 ℃. Khalidwe ili limalola kuti chitsulo cha silicon carbide chisawonongeke kuti chikhale chogwira ntchito bwino ngakhale m'malo otentha kwambiri, popanda kusintha kapena kuwonongeka chifukwa cha kutentha kwambiri, zomwe zimapangitsa kuti ikhale yoyenera mafakitale osiyanasiyana otentha kwambiri monga zitsulo, magetsi ndi mafakitale ena.
4. Kukana dzimbiri: Silicon carbide ili ndi mphamvu zokhazikika za mankhwala ndipo imatha kusonyeza kukana dzimbiri bwino polimbana ndi zinthu zosiyanasiyana za mankhwala. Kaya ndi yonyamula zinthu zamphamvu za acidic ndi alkaline popanga mankhwala kapena yoteteza chilengedwe monga kuyeretsa zinyalala, zingwe zoteteza silicon carbide zimatha kuteteza zipangizo moyenera, kuteteza zipangizo kuti zisawonongeke ndi zinthu za mankhwala, ndikuwonjezera nthawi ya ntchito ya zipangizo.
5. Kuyenda kofooka komanso kosagwirizana ndi magetsi: Zida za silicon carbide zimakhala ndi mphamvu yocheperako, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito ndi zofunikira kwambiri pamagetsi osasunthika, monga malo ogwirira ntchito osaphulika. M'malo awa, magetsi osasunthika angayambitse ngozi zazikulu zachitetezo, ndipo ntchito yotsutsana ndi magetsi osasunthika ya silicon carbide yomwe siigwira ntchito imatha kuletsa kusonkhana kwa magetsi osasunthika ndikuwonetsetsa kuti zinthu zikuyenda bwino.
6. Yosavuta kupanga, yokhoza kukonza zigawo zazikulu komanso zovuta kupanga: Silicon carbide imatha kukonzedwa pogwiritsa ntchito njira monga reaction sintering, zomwe zimapatsa ubwino waukulu popanga. Kudzera mu njirayi, ma ceramic akuluakulu ndi ma ceramic opangidwa mosiyanasiyana amatha kupangidwa. Izi zikutanthauza kuti ngakhale mawonekedwe ndi kukula kwa zidazo zili zapadera bwanji, mkati mwake momwe silicon carbide imagwirira ntchito bwino mutha kusintha kuti ikwaniritse zosowa za zida zosiyanasiyana zamafakitale.
Chipinda cholimba cha silicon carbide chakhala chikugwiritsidwa ntchito kwambiri m'mafakitale chifukwa cha zabwino zake zambiri. Ndi chitukuko chopitilira komanso kupita patsogolo kwa sayansi ya zinthu, akukhulupirira kuti chipinda cholimba cha silicon carbide chidzagwiritsidwa ntchito m'magawo ambiri, zomwe zikupereka chithandizo champhamvu pakugwira ntchito bwino komanso kokhazikika kwa mafakitale. Ngati mukufuna chipinda cholimba cha silicon carbide, chonde musazengereze kulumikizana nafe nthawi iliyonse kuti mufufuze zinsinsi zambiri zokhudza ziwiya za silicon carbide pamodzi.
Nthawi yotumizira: Juni-02-2025