Bulletproof Phaj Yuav Qhia: Los ntawm NIJ Rau GA Cov Qauv, Nkag Siab Koj Qhov Kev Nyab Xeeb

Txawm li cas los xij, ntsib nrog dazzling array ntawm cov khoom lag luam thiab cov qauv tsim qauv hauv kev lag luam, koj yuav xaiv cov cuab yeej zoo li cas los cawm koj txoj sia? Niaj hnub no, peb pib nrog cov qauv kev tiv thaiv ballistic tseem ceeb tshaj plaws thiab qib.

Ob Qhov Txheej Txheem Thoob Ntiaj Teb Loj: NIJ vs GA

Tam sim no, muaj ob lub txheej txheem muaj txiaj ntsig tshaj plaws hauv kev tiv thaiv thoob ntiaj teb: US NIJ tus qauv thiab Suav GA tus qauv.

NIJ Standard: International Benchmark

NIJ (National Institute of Justice) tus qauv yog tus qauv kub rau kev kuaj lub cev khaub ncaws thoob ntiaj teb. Thaum lub Kaum Ib Hlis 2023, NIJ tau tso tawm qhov ntev - tos NIJ Standard 0101.07, qhov kev hloov kho tseem ceeb tshaj plaws txij li xyoo 2008 (version 0101.06).

Qhov kev hloov pauv tseem ceeb tshaj plaws hauv tus qauv tshiab yog kev kho dua tshiab ntawm kev tiv thaiv qib naming system:

Tus txheej txheem tshiab no tsis ncaj qha sau npe hem hom mos txwv nyob rau hauv lub cev armor standard. Hloov chaw, nws qhia txog kev sib cais NIJ Standard 0123.00 txhawm rau txheeb xyuas qib kev hem thawj, ua rau cov qauv hloov tshiab hloov pauv. Tsis tas li ntawd, 0101.07 txhim kho txoj hauv kev sim rau cov poj niam lub cev armor thiab ua kom nruj dua qhov yuav tsum tau muaj nyob rau sab nraub qaum sab hauv qhov tob (blunt impact risk).

GA 141-2010: Suav Tub Ceev Xwm Standard Nyob rau hauv Suav lag luam, GA 141-2010, "Police Body Protection Vest," ua tus qauv rau kev yuav khoom los ntawm pej xeem kev ruaj ntseg system. Nws faib cov qib kev tiv thaiv ntawm 1 txog 6:

Qib 1-2: Feem ntau tiv thaiv rab yaj phom puag ncig (mos lead-core mos txwv).

Qib 3-4: Tiv thaiv cov phom submachine.

Qib 5-6: Tiv thaiv cov phom phom hlau- cov mos txwv tseem ceeb (xws li Hom 56 7.62mm steel- cov mos txwv), yuav tsum tau ua cov phaj zoo heev.

Yooj yim muab tso, GA cov qauv qib 5 thiab 6 sib haum rau cov cuab yeej tawv tawv- tho kev hem, thaum NIJ tus qauv RF3 sib haum rau qib siab tshaj plaws hauv nws chav kawm. Kev nkag siab txog qhov sib txawv no yog thawj kauj ruam ntawm kev yuav khoom.

Cov ntaub ntawv thiab kev tsim cov txheej txheem ntawm Hardened Ballistic Phaj

Nyob rau hauv cov qauv txheej txheem, qhov ua tau zoo ntawm cov khoom yog nyob ntawm cov ntaub ntawv.

Raws li qhov tseeb kev lag luam tsom xam, nruj armor daim hlau nyob rau hauv lub lag luam tam sim no muab faib ua ob lub ntsiab camps:

1. Ceramic Composite Armor Phaj (Hardcore Protection): Cov no siv alumina, silicon carbide, los yog boron carbide ceramics ua lub projectile -fab nto, ua ke nrog ultra- siab molecular hnyav polyethylene (UHMWPE) los yog aramid backing.

Qhov zoo: Cov tawv tawv heev, tshwj xeeb yog tsim los tiv thaiv steel -core thiab armor- tho qhov projectiles (xws li GA 5-6 qib, NIJ RF3).

Qhov tsis zoo: Feem ntau hnyav (kwv yees li 1.9-2.5 kg / phaj), thiab ceramic fragmentation tom qab kev cuam tshuam txo cov cheeb tsam tsis kam mus rau ntau yam.

2. Tag nrho -UHMWPE Armor Phaj (Lub Teeb Pom Kev Zoo): Ua los ntawm ntau txheej ntawm siab-lub zog polyethylene tsis yog- ntaub npuag.

Qhov zoo: Lub teeb yuag heev (kwv yees li 0.8-1.4 kg / phaj), ruaj khov tsis kam mus rau ntau lub voj voog, siab buoyancy, thiab zoo heev toughness ntawm qhov kub thiab txias.

Qhov tsis zoo: Qhov kev txwv siab tshaj ntawm qib kev tiv thaiv feem ntau qis dua li ntawm cov phaj ceramic (feem ntau siv rau GA 3-4 lossis NIJ RF1), thiab lawv tsis tiv taus lub teeb ultraviolet. Lub sij hawm ntev raug tshav ntuj los yog kub thiab av noo ib puag ncig yuav ua rau lawv oxidation thiab degradation.

Yuav ua li cas xaiv raws li qhov scenario?

Siab -kev pheej hmoo tactical missions (counter-kev ua phem, tiv thaiv VIP): Ua ntej GA 5 los yog NIJ RF3 qib ceramic composite daim hlau. Xyuas kom muaj kev tiv thaiv kev phom sij xws li 7.62mm steel- cov mos txwv tseem ceeb. Nco ntsoov xaiv cov khoom uas ua raws li GA 141-2010 los yog tau ntawv pov thawj los ntawm NIJ 0101.07, thiab xyuas kom meej tias lub hauv ob sab phlu qhov tob yog tsawg dua los yog sib npaug li 25 hli.

Cov neeg saib xyuas niaj hnub lossis cov neeg siv qhov hnyav rau qhov hnyav: Txhua yam -PE lossis cov phaj sib sib zog nqus (NIJ HG2 / RF1 lossis GA 4 qib) raug pom zoo. Paub meej tias cov chaw tsim khoom puas tau siv UV- tiv thaiv kev kho mob thiab cov txheej txheem dej tsis zoo, vim qhov no cuam tshuam ncaj qha rau lub neej ntawm lub phaj thaum khaws cia hauv tsheb lossis thaum taug kev sab nraum zoov.

Cov lus qhia kws tshaj lij: Cov phom tsis muaj phom sij muaj hnub tas sij hawm. UHMWPE cov ntaub ntawv oxidizes lub sij hawm, thiab txawm tias thaum tsis siv, nws yog feem ntau pom zoo kom hloov nws txhua txhua 5-10 xyoo nyob rau hauv zoo tagnrho cia tej yam kev mob (tsis txhob lub teeb, dryness, thiab chav tsev kub). Kev tshuaj xyuas cov txheej tiv thaiv tsis tu ncua rau kev puas tsuaj lossis bulging yog tus cwj pwm tseem ceeb rau kev nyab xeeb.

Nyob rau hauv xaus, tus nqi ntawm ballistic daim hlau nyob tsis nyob rau hauv lawv cov niaj hnub muaj, tab sis nyob rau hauv lawv cov kev cia siab rau lub sij hawm ntawm kev cuam tshuam. Thaum xaiv ib lub phaj ballistic, thov nco ntsoov xa mus rau cov qauv siv tshiab, nkag siab txog qib kev tiv thaiv tiag tiag, thiab kev tiv thaiv kev sib npaug thiab kev txav mus los raws li lub hom phiaj xav tau.