Zipangizo zophatikizika zimagwiritsidwa ntchito kwambiri, ndipo ubwino waulusi wagalasizipangizo sizisintha. Kodi pali chiopsezo chilichonse chakuti ulusi wagalasi ulowe m'malo mwaulusi wa kaboni?
Ulusi wagalasi ndi ulusi wa kaboni ndi zinthu zatsopano zogwira ntchito bwino kwambiri. Poyerekeza ndi ulusi wagalasi, ulusi wa kaboni uli ndi ubwino woonekeratu wa mphamvu ndi kupepuka koma ulinso ndi zovuta zoonekeratu pakugwira ntchito bwino kwa kutchinjiriza.
Pakadali pano, mphamvu yopangira ulusi wa kaboni padziko lonse lapansi si yayikulu, ndipo mtengo wopangira ndi wokwera kwambiri. Chifukwa cha kupanga zinthu zopangira ndi njira zake, ulusi wa kaboni sungathe kupanga ndi kuchepetsa ndalama zambiri mofanana ndi ulusi wagalasi mtsogolomu. Mosiyana ndi zimenezi, m'zaka zaposachedwapa, magwiridwe antchito ndi kugwiritsa ntchito bwino ulusi wagalasi kwakhala kukuwonjezeka nthawi zonse, ndipo kugwiritsa ntchito ulusi wa kaboni kwasinthidwa m'magawo ena akumunsi.
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Ulusi wagalasi ndi chinthu chosapangidwa ndi chitsulo chomwe chimagwira ntchito bwino kwambiri. Mipira yagalasi kapena galasi lotayira zinthu zimagwiritsidwa ntchito ngati zipangizo zopangira zinthu kudzera mu kusungunuka kwambiri, kukoka waya, kupotoza, kuluka ndi njira zina, ndipo pamapeto pake amapanga ulusi wagalasi. M'lifupi mwa ulusi wagalasi muli pakati pa ma microns angapo ndi mamita makumi awiri, zomwe zimafanana ndi tsitsi. Gawo limodzi mwa magawo asanu mpaka limodzi mwa magawo khumi a m'lifupi mwa silika, mtolo wa ulusi umapangidwa ndi mazana kapena zikwi za monofilaments. Anthu ambiri amaganiza kuti galasi ndi chinthu chofooka komanso cholimba, chosayenerera kugwiritsidwa ntchito ngati chinthu chomangira.
Komabe, ngati ikukokedwa mu silika, mphamvu yake imawonjezeka kwambiri ndipo imakhala yosinthasintha, kotero imatha kukhala chinthu chabwino kwambiri chomangira pambuyo posintha mawonekedwe ake ndi utomoni. Mphamvu ya ulusi wagalasi imawonjezeka pamene kukula kwake kumachepa. Makhalidwe amenewa amapangitsa kuti kugwiritsa ntchito ulusi wagalasi kukhale kwakukulu kwambiri kuposa mitundu ina ya ulusi. Ulusi wagalasi uli ndi makhalidwe awa: mphamvu yayikulu yogwira; kusinthasintha kwakukulu kwa kusinthasintha; mphamvu yayikulu yogwira; kukana mankhwala; kuyamwa madzi pang'ono; kukana kutentha bwino; mitundu yambiri ya zinthu zokonzedwa; colloid yowonekera; mtengo wotsika.
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Ulusi wa kabonindi ulusi wosapangidwa ndi zinthu za kaboni. Kuchuluka kwa kaboni mu ulusiwu kumaposa 90%. Kawirikawiri amagawidwa m'magulu atatu: wamba, wamphamvu kwambiri komanso wapamwamba. Poyerekeza ndi ulusi wagalasi (GF), modulus ya Young ndi yoposa katatu; poyerekeza ndi ulusi wa Kevlar (KF-49), si modulus ya Young yokha yomwe ili pafupifupi kawiri, komanso mu organic solvent, acid, Siitupa kapena kutupa mu alkali, ndipo kukana kwake dzimbiri ndi kwabwino kwambiri. Ulusi wa kaboni ndi chinthu cha kaboni chokhala ndi ulusi. Ndi wolimba kuposa chitsulo, wochepa kukhuthala kuposa aluminiyamu, wolimba kwambiri ku dzimbiri kuposa chitsulo chosapanga dzimbiri, wolimba kwambiri kutentha kuposa chitsulo chosagwira kutentha, amatha kuyendetsa magetsi ngati mkuwa, ndipo ali ndi mphamvu zamagetsi, kutentha komanso makina.
Ulusi wa kaboni ukhoza kusinthidwa kukhala nsalu, ma felt,mphasa, malamba, mapepala ndi zinthu zina. Pakagwiritsidwe ntchito kachikhalidwe, ulusi wa kaboni nthawi zambiri sugwiritsidwa ntchito kokha kupatula ngati chinthu chotenthetsera kutentha, ndipo nthawi zambiri umawonjezeredwa ku utomoni, chitsulo, ceramic, konkire ndi zinthu zina ngati chinthu cholimbitsa kuti apange chinthu chophatikizana. Zipangizo zophatikizana zolimbikitsidwa ndi ulusi wa kaboni zingagwiritsidwe ntchito ngati zipangizo zomangira ndege, zotchingira zamagetsi ndi zinthu zotsutsana ndi static, mitsempha yopangira ndi zinthu zina zolowa m'malo mwa thupi, komanso popanga ma rocket casings, ma motor boat, ma robot a mafakitale, ma automotive leaf springs ndi ma drive shafts. Ulusi wa kaboni umagwiritsidwa ntchito kwambiri m'mabwalo ankhondo, zomangamanga, mankhwala, mafakitale, ndege ndi magalimoto apamwamba kwambiri.
Chidule: Kufikira pamlingo winawake, palibe amene angalowe m'maloulusi wagalasindi ulusi wa kaboni. Kupatula apo, magwiridwe antchito a ziwirizi ndi osiyana kwambiri, ndipo luso lawo lapadera nalonso ndi losiyana, ndipo lingasankhidwe kokha malinga ndi zosowa za chinthucho. Kuchokera pakuwona kuchuluka ndi mtengo, ulusi wagalasi uli ndi mphamvu zonse; koma pankhani ya kulemera kopepuka ndi mphamvu zambiri, ulusi wa kaboni ndi wabwino kwambiri.
Nthawi yotumizira: Mar-11-2022
