Pankhani ya chitetezo chamakono, chifukwa cha kupititsa patsogolo mphamvu ya zida, zofunikira pa zipangizo zosagwidwa ndi zipolopolo zikukulirakulira.Silikoni kabide, chinthu chooneka ngati chachilendo koma champhamvu kwambiri, pang'onopang'ono chikuyamba kutchuka kwambiri mumakampani oteteza zipolopolo. Lero, tiwulula chophimba chachinsinsi cha silicon carbide choteteza zipolopolo.
1, Kutsegula mfundo yoteteza zipolopolo
Chitsimikizo chachikulu cha chitetezo cha zida chili pakugwiritsa ntchito mphamvu ya zombo zoponyera, kuzichepetsa mpaka zitataya ngozi yake. Zipangizo zachitsulo zachikhalidwe zimadalira kusintha kwa pulasitiki kuti zitenge mphamvu, pomwe zipangizo za ceramic zimakwaniritsa cholinga ichi kudzera mu njira yapadera yophwanya. Potengera zombo zoteteza zipolopolo za silicon carbide mwachitsanzo, zombo zoponyera zipolopolo zikagunda, chombocho chimakhala chopanda kanthu nthawi yomweyo pamwamba pa chombocho, ndipo pamwamba pa chombocho chimaphwanyidwa kuti chipange malo olimba ogawikana. Njirayi ili ngati kupatsa chombocho "nyundo" ndikuyamba kuyamwa mphamvu poyamba; Kenako, chombocho chophwanyidwa chinapitiriza kupita patsogolo, kuwononga malo ogawikana ndikupanga wosanjikiza wopitilira wa zidutswa za ceramic; Pomaliza, zombozo zimasweka pansi pa mphamvu yolimba, ndipo kumbuyo kwa chombocho kumayamba kusokonekera. Mphamvu yotsalayo imayamwa kwathunthu ndi kusintha kwa zinthu za kumbuyo kwa chombocho.
2, N’chifukwa chiyani silicon carbide ingakhale yotetezeka ku zipolopolo?
Silicon carbide ndi chinthu chomwe chimapangidwa makamaka ndi ma covalent bonds, ndipo ma Si-C bonds ake amatha kukhala ndi mphamvu zambiri kutentha kwambiri. Kapangidwe kake kapadera kameneka kamapereka zinthu zambiri zabwino kwambiri zopangidwa ndi silicon carbide. Ili ndi kuuma kwakukulu, yachiwiri kwa diamondi, cubic boron nitride, ndi boron carbide pakati pa zinthu zodziwika bwino. Ili ngati msilikali wovala zida zolimba, wokhoza kukana mwamphamvu kugundana ndi zipolopolo; Nthawi yomweyo, imakhala ndi kachulukidwe kochepa ndipo imakhala yopepuka ikapangidwa kukhala zida zoteteza zipolopolo. Kaya ndi yankhondo ya munthu payekha kapena yokonzedwa pamagalimoto ndi ndege, sidzakhala katundu wowonjezera, koma m'malo mwake imatha kusintha kuyenda kwa magulu ankhondo. Kuphatikiza apo, silicon carbide ilinso ndi kukhazikika kwabwino kwa kutentha komanso kukana dzimbiri kwa mankhwala, ndipo imatha kusewera bwino m'malo osiyanasiyana ovuta.
3, Ubwino wapadera wa reaction sintered silicon carbide m'zigawo zomwe zasinthidwa
Pokonzekera zoumba za silicon carbide, reaction sintered silicon carbide (RBSiC) imadziwika bwino, makamaka yoyenera kupanga magawo okonzedwa, pazifukwa zotsatirazi:
1. Kuchuluka kwamphamvu ndi mphamvu: Pa kutentha kwambiri, mpweya waufulu umakumana ndi silicon yamadzimadzi kuti apange makhiristo atsopano a silicon carbide. Nthawi yomweyo, silicon yaufulu imalowa m'mabowo, ndikuwonjezera kuchuluka kwa zinthuzo, pafupifupi kuyandikira kuchuluka kwa malingaliro. Izi sizimangopatsa zinthuzo mphamvu yabwino kwambiri yopondereza komanso yopindika, komanso zimazipatsanso mphamvu yabwino yotha kuvulala, zomwe zimatha kupirira kupanikizika kwakukulu ndi mikhalidwe yovuta kwambiri, kukwaniritsa zofunikira za zigawo zomwe zasinthidwa kuti zikhale zolimba komanso zolimba.
2. Kapangidwe kakang'ono kolamulirika: Njira yochepetsera kutentha kwa zinthu imatha kuwongolera bwino kukula kwa tirigu, ndikupanga kapangidwe kakang'ono komanso kofanana. Kapangidwe kakang'ono aka kamawonjezeranso mphamvu zamakanikidwe a chinthucho, zomwe zimathandiza kuti chikhale chokhazikika komanso chosasweka mosavuta chikakumana ndi zovuta zosiyanasiyana, zomwe zimapangitsa kuti zikhale zodalirika pazigawo zomwe zasinthidwa.
3. Kulondola kwakukulu: Panthawi yochulukitsa mphamvu, kusintha kwa mawonekedwe a silicon carbide yopangidwa ndi zinthu zosinthika kumakhala kochepa, zomwe ndizofunikira kwambiri pazinthu zomwe zasinthidwa. Kaya ndi pulagi imodzi yoteteza zipolopolo ya asilikali yokhala ndi mawonekedwe ovuta kapena gawo lapadera loteteza galimoto lomwe limafuna kukula kokhwima, zitha kupangidwa molondola kuti zitsimikizire kuti zikugwirizana bwino ndi zida.
4. Kukhazikika kwa mankhwala: Silikoni carbide yokhala ndi reaction sintered ilibe ma pores otseguka, zomwe zimapangitsa kuti mpweya ndi zinthu zowononga zisamalowe mkati mwa zinthuzo, motero zimakhala ndi okosijeni wamphamvu kwambiri komanso kukana dzimbiri. Izi zikutanthauza kuti zinthu zopangidwa ndi silicon carbide zomwe zimapangidwa mwamakonda zimatha kukhalabe ndi magwiridwe antchito okhazikika, kukulitsa nthawi yogwira ntchito, ndikuchepetsa ndalama zosamalira m'malo ovuta achilengedwe kapena a mankhwala kwa nthawi yayitali.
4, Silicon carbide yogwiritsira ntchito zipolopolo
Ndi magwiridwe antchito ake abwino kwambiri, zida zoteteza zipolopolo za silicon carbide zagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana:
1. Zipangizo za aliyense payekha: chovala choteteza zipolopolo cha silicon carbide, chisoti choteteza zipolopolo, ndi zina zotero, zimapatsa asilikali chitetezo chopepuka komanso chapamwamba, zomwe zimawalola kumenya nkhondo mosavuta pankhondo pomwe ali ndi chitetezo chodalirika.
2. Magalimoto apadera: monga magalimoto okhala ndi zida zankhondo, magalimoto onyamula ndalama, magalimoto olimbana ndi uchigawenga ndi magalimoto owongolera zipolowe, ndi zina zotero, ali ndi zida za silicon carbide ceramic zomwe zili m'zigawo zofunika, zomwe zimatha kupirira bwino ziwopsezo zosiyanasiyana za zida ndikuteteza chitetezo cha ogwira ntchito ndi zipangizo zofunika mkati mwa galimotoyo.
3. Ndege: Zipangizo zoteteza zipolopolo za silicon carbide zimagwiritsidwa ntchito pa ma helikopita okhala ndi zida ndi ndege zina kuti zichepetse kulemera kwawo, kupititsa patsogolo magwiridwe antchito a ndege, ndikuwonjezera mphamvu zawo zodzitetezera ku moto wa adani, ndikuwonetsetsa kuti ndegeyo ndi yotetezeka.
Ndi kupita patsogolo kosalekeza kwa ukadaulo, zipangizo zoteteza zipolopolo za silicon carbide zipitiliza kupanga ndi kupanga zatsopano, ndikupanga mzere wolimba woteteza kuti chitetezo chitetezeke. Ngati mukufuna zida zopangidwa mwamakonda za silicon carbide ceramics, chonde musazengereze kulumikizana nafe.
Nthawi yotumizira: Juni-06-2025