M'mafakitale ambiri, mapaipi ena amapirira mwakachetechete mikhalidwe yovuta kwambiri yogwirira ntchito: kutentha kwambiri, dzimbiri lamphamvu, ndi kuvala kwambiri. Ndiwo 'mitsempha yamagazi yamakampani' yomwe imatsimikizira kupanga kosalekeza komanso kokhazikika. Lero tikambirana za imodzi mwamapaipi amtundu uwu -silicon carbide ceramic chitoliro.
Anthu ambiri amaganiza za "brittle" akamva "ceramic". Koma mafakitale a silicon carbide ceramics amatsata "kuuma" ndi "kukhazikika". Kulimba kwake ndikokwera kwambiri, ndipo kulimba kwake kumaposa zitsulo ndi mphira. Iwo akhoza kupirira mkulu-liwiro kukokoloka madzimadzi munali olimba particles kwa nthawi yaitali; Mankhwalawa ndi okhazikika kwambiri ndipo amatha kupirira kukokoloka kwa mitundu yosiyanasiyana ya asidi amphamvu, maziko amphamvu, ndi mchere; Nthawi yomweyo, imatha kugwira ntchito mokhazikika pakutentha kwambiri komanso kupirira kutentha mpaka 1350 ℃. Kuphatikiza apo, imakhala ndi ma conductivity abwino amafuta komanso malo osalala, omwe amathandizira kuchepetsa kukana kwamayendedwe komanso kugwiritsa ntchito mphamvu.
Mwachidule, machubu a silicon carbide ceramic amapangidwa kuti athetse zovuta zamayendedwe "zotentha, zowononga, ndi zowononga". Ponyamula slag ndi matope m'mafakitale monga migodi, zitsulo, ndi mphamvu zotentha, zimatha kuwonjezera moyo wautumiki wa mapaipi ndikuchepetsa nthawi yosinthira; Poyendetsa zowononga zowononga m'mafakitale oteteza mankhwala ndi chilengedwe, zimatha kuonetsetsa kuti ntchito yokhazikika nthawi yayitali komanso kuchepetsa chiopsezo cha kutayikira. Ngakhale kuti ndalama zoyambazo zikhoza kukhala zapamwamba, phindu la nthawi yayitali ndilofunika kwambiri kuchokera kumalingaliro athunthu a kuchepetsa kukonza, kuchepetsa kugwiritsira ntchito mphamvu, ndi kuonetsetsa kupanga.
Kupanga machubu a silicon carbide ceramic ndi ntchito yovuta. Kawirikawiri, silicon carbide powder imasakanizidwa ndi zowonjezera zowonjezera kuti apange "thupi lobiriwira" ndi mphamvu inayake, ndiyeno sintered pa kutentha kwakukulu kuti zinthuzo zikhale wandiweyani komanso zolimba. Malinga ndi zosowa zosiyanasiyana, njira zosiyanasiyana monga reaction sintering ndi pressureless sintering zidzatengedwa. Kuti akhazikitse mosavuta, mapaipi omalizidwa nthawi zambiri amakhala ndi zida zolumikizira monga zitsulo zachitsulo.
Ngakhale kuti imagwira ntchito bwino kwambiri, machubu a silicon carbide ceramic akadali zida za ceramic zomwe zimafunikira "mankhwala ofatsa" akagwiritsidwa ntchito. Kuyika ndi zoyendetsa ziyenera kuyendetsedwa mosamala kuti pasakhale zovuta; Onetsetsani kuti muthandizidwe mokwanira komanso chiwongola dzanja chowonjezera kutentha kuti mupewe katundu wowonjezera chifukwa cha kupsinjika kwakunja kapena kusintha kwa kutentha; Musanasankhe zida, ndi bwino kukhala ndi injiniya wodziwa kuti aunike sing'anga, kutentha, ndi kupanikizika kuti apeze njira yoyenera kwambiri.
Ponseponse, machubu a silicon carbide ceramic akwanitsa "kuuma" ndi "kukhazikika", kupereka mayankho odalirika pamikhalidwe yovuta kwambiri yotumizira, ndipo ndiwodi "ngwazi zosawoneka".
Nthawi yotumiza: Oct-05-2025