Nrog nws cov khoom siv tshwj xeeb, 99% alumina ceramic qhia tau tias muaj peev xwm siv tau ntau hauv kev tiv thaiv mos txwv, thiab tau dhau los ua qhov kev xaiv tseem ceeb ntawm cov kev daws teeb meem mos txwv.
99% alumina ceramicsmuaj qhov nyuaj thiab lub zog compressive siab heev. Nws cov alumina purity siab heev, thiab qhov ceev yog siab heev. Yuav luag tsis muaj qhov hws lossis cov khoom tsis huv sab hauv. Qhov nyuaj tuaj yeem ncav cuag siab dua HRA90, thiab lub zog compressive tshaj 3000 MPa. Thaum lub mos txwv ntaus nrog kev kub ceev, qhov chaw ceramic tawv tuaj yeem nias, deform, lossis txawm tias tawg lub taub hau mos txwv. Tib lub sijhawm, cov qauv siv lead ua los ntawm ceramic siab tuaj yeem tawg lub zog cuam tshuam sai sai thiab siv lub zog kinetic ntawm lub mos txwv, tiv thaiv lub taub hau mos txwv kom tsis txhob nkag mus rau hauv lub phaj mos txwv, yog li muab sijhawm rau txheej buffer tom ntej kom nqus lub zog.
Hais txog kev tsim qauv sib dua, 99% alumina ceramics muaj qhov zoo tseem ceeb. Piv nrog cov ntaub ntawv tiv thaiv hlau ib txwm muaj (xws li cov phaj hlau), nws qhov ceev tsuas yog 3.9-4.0g / cm³, uas tsawg dua ib nrab ntawm cov hlau. Hauv qab qib kev tiv thaiv tib yam, qhov hnyav ntawm cov cuab yeej tiv thaiv mos txwv siv 99% alumina ceramics tuaj yeem txo tau 40% -60%, uas yog qhov tseem ceeb rau cov xwm txheej uas rhiab heev rau qhov hnyav xws li cov khoom siv tiv thaiv tus kheej thiab cov cuab yeej tsheb. Qhov no tuaj yeem txo qhov hnyav rau cov neeg siv thiab txhim kho kev txav mus los.
Hauv kev siv tiag tiag, 99% alumina ceramics feem ntau yog sib xyaw nrog cov khoom siv fiber sib xyaw (xws li aramid, ultra-high molecular weight polyethylene) los tsim cov qauv tiv thaiv mos txwv. Cov txheej ceramic ua haujlwm ua thawj kab tiv thaiv, lub luag haujlwm rau kev tawg lub taub hau mos txwv thiab faib lub zog cuam tshuam. Cov txheej fiber nqus cov zog seem los ntawm kev hloov pauv. Kev sib koom ua ke ntawm ob lub Cheebtsam no tuaj yeem txhim kho qhov kev tiv thaiv tag nrho. Piv txwv li, hauv cov ntawv ntxig mos txwv, 99% alumina ceramic ntawv, tom qab txiav thiab sib dhos meej, tau sib xyaw nrog cov fiber backplate. Lawv tuaj yeem tiv taus qhov cuam tshuam ntawm rab phom thiab rab phom mos txwv thiab ua tau raws li cov qauv tiv thaiv ntawm NIJ III thiab siab dua.
Tsis tas li ntawd xwb, qhov ruaj khov ntawm cov tshuaj lom neeg thiab kev tiv taus kub ntawm 99% alumina ceramics kuj muab kev lees paub rau lawv siv rau hauv cov ntawv thov tiv thaiv mos txwv. Nws tsis yooj yim xeb los ntawm ib puag ncig thiab tuaj yeem tswj tau qhov ua tau zoo txawm tias nyob rau hauv cov xwm txheej nyuaj xws li av noo thiab kub siab. Ntxiv mus, thaum lub mos txwv cuam tshuam thiab tsim cov kub siab hauv zos (nrog rau qhov kub tam sim ntawd ncav cuag ntau pua degrees Celsius), nws yuav tsis deform vim qhov kub siab, yog li tsis cuam tshuam rau qhov cuam tshuam tiv thaiv thiab ua kom ntseeg tau tias lub sijhawm ntev ntawm cov khoom siv tiv thaiv mos txwv.
Lub sijhawm tshaj tawm: Lub Yim Hli-07-2025