Masiku ano, mbale zoteteza zipolopolo (kapena matailosi oteteza zipolopolo) zimayamikiridwa kwambiri ndi anthu, koma pamsika wa mbale zoteteza zipolopolo ndi zambiri, kusiyana kwa magwiridwe antchito ndi kwakukulu kwambiri, malinga ndi zinthu, njira ndi zina zomwe zimadziwika kuti mbale zoteteza zipolopolo zitha kugawidwa m'magulu atatu, omwe ndi mbale zoteteza zipolopolo zachitsulo, mbale zoteteza zipolopolo za polyethylene PE ndi mbale zoteteza zipolopolo za ceramic, mitundu itatu ya mbale zoteteza zipolopolo iliyonse ili ndi zabwino ndi zoyipa. Kusankhaku kumafunanso kuganizira mozama. Sankhani mbale zoteteza zipolopolo, muyenera kuyang'ana kwambiri zinthu zitatu izi: kulemera, mtengo ndi mphamvu zoteteza zipolopolo (kutanthauza mulingo woteteza zipolopolo), lero tikuchokera ku mbali zitatu izi za mitundu itatu ya kusanthula ndi kufananiza mbale zoteteza zipolopolo.
1. Mbale yachitsulo yosalowa zipolopolo
Mapepala oteteza zipolopolo achitsulo akhala akugwiritsidwa ntchito kuyambira Nkhondo Yachiwiri Yapadziko Lonse ndipo anali otchuka pamsika woteteza zipolopolo zaka makumi angapo zapitazo. Koma pambuyo pa kupangidwa kwa mbale yoteteza zipolopolo ya polyethylene PE ndi mbale yoteteza zipolopolo ya ceramic, mbale yoteteza zipolopolo yachitsulo inasinthidwa pang'onopang'ono. Amagwiritsidwabe ntchito mpaka pano, koma ndi ochepa.
Poyerekeza ndi mbale yatsopano yosalowa zipolopolo, mbale yachitsulo yosalowa zipolopolo ndi yosavuta kusweka ikawomberedwa, zomwe zingayambitse kuwonongeka kwina kwa thupi la munthu. Poyerekeza ndi zipangizo zina ziwiri, mbale yachitsulo yosalowa zipolopolo yokhala ndi chitetezo chofanana ndi yolemera, imagwiritsa ntchito mphamvu zambiri ndipo imachepetsa kusinthasintha kwa wovala.
Ngakhale kuti mbale yachitsulo yoteteza zipolopolo ndiyo mtengo wotsika kwambiri pa zinthu zitatu zoyikiramo, koma ponseponse, sikoyenera kukhala yoyamba.
2. Mbale yoteteza zipolopolo ya polyethylene PE
Polyethylene PE ndi mtundu watsopano wa zinthu zopangidwa ndi thermoplastic. Mbale yoteteza zipolopolo ya polyethylene PE imapangidwa pomangirira ulusi wa polyethylene wolemera kwambiri womwe uli mbali imodzi pa bolodi la polyethylene lolemera kwambiri. Imadulidwa kukhala mawonekedwe, imayikidwa mu chikombole, ndikukanikizidwa pansi pa kutentha kwakukulu ndi kukakamizidwa kuti ipange mbale yolimba yolimba. Polyethylene "imamatira" ku chipolopolocho posungunula polyethylene chifukwa cha kukangana komwe kumachitika chifukwa cha kuzungulira kwa chipolopolocho. Kuzungulirako kukasiya, palibe kutentha komwe kumachitika, ndipo polyethylene imazizira ndikulimbanso.
Ubwino wa mbale yoteteza zipolopolo ya polyethylene PE nthawi zambiri umakhala pafupifupi 1 mpaka 1.5kg, wopepuka kwambiri kuposa mbale yoteteza zipolopolo yachitsulo ndi mbale yoteteza zipolopolo ya ceramic. Komabe, chifukwa cha zofooka za njira yogwiritsira ntchito zinthu zomwe zilipo, mbale yoyera ya PE imatha kukwaniritsa chitetezo chapamwamba kwambiri cha NIJ III, chosatha kuteteza ku zipolopolo zoboola mfuti ndi zipolopolo zamphamvu kwambiri, ndipo mtengo wokwera wa polyethylene PE, nthawi zambiri umakhala wokwera mtengo ndi 200% mpaka 300% kuposa mbale yoteteza zipolopolo ya ceramic, si chisankho chabwino.
3. Mbale yoteteza zipolopolo ya Ceramic
Zida zoikira za Ceramic zimatha kugwiritsa ntchito zinthu zosiyanasiyana, zomwe zimapezeka kwambiri ndi alumina, silicon carbide ndi boron carbide. Zida zoikira za Ceramic sizimalimbana ndi zipolopolo chifukwa cha kuuma kwawo, mphamvu, komanso kusagwira bwino ntchito kwa mankhwala m'malo ambiri. Ndi bwino kuposa chitsulo chifukwa zipangizo zachitsulo zimapanga kusintha kwa pulasitiki ndikuyamwa mphamvu zikamalimbana ndi kukhudzidwa kwa mutu wankhondo, pomwe ceramic sizipanga kusintha kwa pulasitiki ndipo mutu wankhondo udzakhala wosakhwima kapena wosweka chifukwa cha mphamvu zake komanso kuuma kwake. Zida zoikira za Ceramic zoteteza zipolopolo komanso zida zoikira za fiber modulus zomwe zimakhala ndi mphamvu yayikulu, pomwe zida zoikira za ceramic zothamanga kwambiri ndi ceramic layer zikugundana, kugawanika kwa ceramic layer kapena ming'alu ndi kufika pamalo ogunda ngati pakati pa malo ozungulira kuti zigwiritse ntchito mphamvu zambiri za thupi loikira, kenako zida zoikira za fiber modulus zomwe zimakhala ndi mphamvu zambiri zotsalira za thupi loikira. Chifukwa chake, kugwiritsa ntchito zida zoikira za ceramic zapamwamba m'makina oikira zankhondo ndikokongola kwambiri ndipo kwakhala chida choteteza chomwe chimagwiritsidwa ntchito kwambiri pazida zoikira zankhondo, magalimoto, ndege ndi zida zina.
Vuto la mbale ya ceramic ndilakuti ikamenyedwa, malo ogunda sangateteze chipolopolo kachiwiri. Koma tsopano mbale ya ceramic ndi yopepuka komanso yolimba kuposa kale, opanga ena amatha kupangitsa kulemera kwake kukhala kofanana ndi mbale ya PE, ndipo pogwiritsa ntchito zipangizo zosiyanasiyana amathanso kukwaniritsa kulemera, mtengo ndi zofunikira zina.
Mu kukula komweko komwe kuli ndi mulingo womwewo wa chitetezo, mbale yoteteza zipolopolo ya ceramic ndi yopepuka kuposa mbale yoteteza zipolopolo yachitsulo, ndipo mtengo wake ndi wotsika kuposa mbale ya polyethylene PE ndipo ngakhale makulidwe ake akhoza kukhala ochepa.
Kawirikawiri, mbale yachitsulo yoteteza zipolopolo ndi yosavuta komanso yotsika mtengo, koma kulemera kwake ndi kwakukulu kwambiri, ndipo n'kosavuta kuwononga wogwiritsa ntchito; Ngakhale mbale ya polyethylene PE yoteteza zipolopolo ndi yopepuka, koma mphamvu yake yoteteza zipolopolo ndi yotsika mtengo, ndipo mtengo wake ndi wokwera mtengo; Poyerekeza, mbale ya ceramic yoteteza zipolopolo si yabwino kokha, mtengo wake ndi wotsika, komanso mphamvu yake yoteteza zipolopolo; Kapangidwe ka mbale ya silicon carbide ceramic yoteteza zipolopolo ndi yabwino kwambiri pa mbale ya alumina, ndipo ndiyo njira yabwino kwambiri yotetezera mbale ya zipolopolo.
Nthawi yotumizira: Sep-26-2022