Cov khaub ncaws tshiab muag muag uas tiv taus cov khaub ncaws uas muaj kev ua haujlwm siab

Nyob rau hauv lub ntiaj teb no niaj hnub no, nyob rau hauv cov ntsiab lus ntawm kev thaj yeeb thiab kev loj hlob, kev tsov kev rog hauv zos yeej tsis tau nres thiab cov neeg ua phem tawm tsam tau tshwm sim ib ntus. Yog li ntawd, kev tshawb fawb thiab kev tsim cov khoom siv tiv thaiv tub rog thiab tub ceev xwm yeej ib txwm nyiam ntau yam. Rau kuv lub teb chaws, raws li lub teb chaws txoj kev tswj hwm nruj ntawm rab phom thiab mos txwv, kev hem thawj los ntawm tub ceev xwm pem hauv ntej feem ntau yog los ntawm kev tho, ntaus, nyiag, thiab lwm yam ntawm tib neeg lub cev los ntawm cov khoom ntse xws li daggers thiab riam. Raws li kev txheeb cais los ntawm Tuam Tshoj Tub Ceev Xwm Network, txij li tau tsim lub Tuam Tshoj Tshiab, ntau dua 14,000 tub ceev xwm los ntawm pej xeem kev ruaj ntseg cev thoob plaws lub teb chaws tau tuag heroically, thiab ntau dua 100,000 tub ceev xwm muaj raug mob. Raws li kev txheeb cais hauv thawj ib nrab xyoo 2020, tag nrho ntawm 169 tus tub ceev xwm raug tua nyob rau hauv txoj haujlwm. Feem ntau cov tub ceev xwm tuag thiab raug mob yog cuam tshuam nrog kev tua cov cuab yeej xws li daggers thiab bayonets. Yuav ua li cas tiv thaiv lub cev tawm tsam ntawm cov riam phom melee no? Ua kom muaj kev nyab xeeb ntawm tus kheej ntawm tub ceev xwm yeej ib txwm yog ib qho tseem ceeb hauv kev tshawb fawb cov cuab yeej tub ceev xwm.

Cov khaub ncaws pov thawj yog ib yam khoom siv uas tuaj yeem tiv thaiv cov riam phom ntse thiab riam phom ntse los ntawm kev tawm tsam ntawm kev tiv thaiv los ntawm ntau lub kaum sab xis thiab txo qhov kev hem thawj ntawm qhov txhab rau ntawm qhov chaw tiv thaiv ntawm tib neeg lub cev. Tom qab xyoo ntawm kev tshawb fawb thiab kev loj hlob, stab-resistant khaub ncaws tau maj mam tsim los ntawm tawv stab-resistant khaub ncaws mus rau mos stab-resistant khaub ncaws, coj mus rau hauv tus account ob qho tib si hnav kev ua tau zoo thiab ib puag ncig adaptability. Cov khaub ncaws stab-resistant ua los ntawm cov khoom siv fiber ntau tshiab tuaj yeem tsis tsuas yog ua tau raws li qhov yuav tsum tau ua ntawm kev tiv thaiv kev ua haujlwm, tab sis kuj muaj kev hnav zoo dua hauv kev ua tau zoo, tuab thiab softness. Kab lus no yuav piav qhia txog hom khaub ncaws mos stab-resistant.

Qhov thib ob, txoj kev loj hlob ntawm cov khaub ncaws stab-resistant

Raws li cov khoom ntawm cov khoom, cov khaub ncaws stab-resistant tuaj yeem muab faib ua hlau stab-resistant khaub ncaws thiab cov khaub ncaws tsis-hlau-resistant. Cov khoom tseem ceeb stab-resistant ntawm cov hlau stab-resistant khaub ncaws yog hlau, thiab nws kuj suav nrog cov ntaub ntawv sib xyaw ntawm cov hlau thiab lwm cov ntaub ntawv uas tsis yog hlau stab-resistant. Cov khaub ncaws qub hlau stab-resistant feem ntau yog siv hlau, hlau thiab lwm yam hlau los yog alloys ua cov khoom siv thauj khoom, thiab ua rau cov nplais, voj voog, squares, thiab lwm yam. raws li cov khoom siv thauj khoom. Substrate Ua rau cov ris tsho stab-resistant. Qhov no hlau stab-pov thawj suit yog ib qho nyuaj stab-proof suit nrog zoo stab-pov thawj kev ua tau zoo, tab sis siab hardness thiab zoo, tsis zoo huab cua permeability, thiab tsis haum rau lub cev txav thaum hnav. Txhawm rau txhim kho qhov softness ntawm stab-resistant khaub ncaws, cov kws tshawb fawb tau tsim ib nrab-nyuaj, ib nrab-muab hlau stab-resistant khaub ncaws. Hom khaub ncaws stab-resistant no txo ​​qhov zoo thiab hardness ntawm cov khoom mus rau ib tug tej yam los ntawm kev sib xyaw ntawm cov ntaub ntawv hlau thiab resins. Tsis tuaj yeem ua tau raws li kev lag luam kev xav tau rau lub teeb, nyias thiab muag muag. Cov khaub ncaws uas tsis yog xim hlau stab-resistant ua los ntawm cov khoom siv fiber ntau yog ib hom mos stab-resistant khaub ncaws, uas tuaj yeem ua tau raws li qhov xav tau saum toj no ntawm lightness, thinness thiab softness, thiab tseem yog qhov kev tshawb fawb hotspot tam sim no. Cov khoom siv tiv thaiv tseem ceeb ntawm qhov stab-resistant suit no yog cov fibers ua haujlwm siab. Tam sim no, kev lag luam yog sawv cev los ntawm ultra-high molecular hnyav polyethylene thiab aramid. Cov ntaub thiab resin tau ua ke ua ib txheej stab-pov thawj, thiab ntau txheej txheej muaj kev ua haujlwm zoo, hnav tau yooj yim, thiab tsis cuam tshuam rau tib neeg kev ua ub no. Piv nrog rau cov khaub ncaws hlau stab-resistant, kev ua tau zoo ntawm cov khaub ncaws uas tsis yog hlau stab-resistant tsis tshua muaj kev cuam tshuam los ntawm kev hloov pauv ntawm ib puag ncig sab nraud. Nws muaj kev ua haujlwm ruaj khov thiab siv tau ntau dua hauv kev sib ntaus sib tua ntawm -20 degree -55 degree . Kev ua tau zoo ntawm cov khaub ncaws uas tsis yog hlau stab-resistant tsis tshua muaj kev cuam tshuam los ntawm kev hloov hauv ib puag ncig sab nraud. Nws muaj kev ua haujlwm ruaj khov thiab siv tau ntau dua hauv kev sib ntaus sib tua ntawm -20 degree -55 degree . Kev ua tau zoo ntawm cov khaub ncaws uas tsis yog hlau stab-resistant tsis tshua muaj kev cuam tshuam los ntawm kev hloov hauv ib puag ncig sab nraud. Nws muaj kev ua haujlwm ruaj khov thiab siv tau ntau dua hauv kev sib ntaus sib tua ntawm -20 degree -55 degree .

3. Cov kev cai rau tub ceev xwm stab-proof khaub ncaws hauv kuv lub tebchaws

Cov hauv qab no yog cov lus qhia dav dav rau cov kev cai rau cov khaub ncaws stab-resistant raws li GA 68-2019 "Police stab-resistant khaub ncaws" tus qauv.

3.1 Cov khaub ncaws hnav-tiv taus

Cov tub ceev xwm stab-proof khaub ncaws muaj ib lub tsho-pov thawj, ib txheej stab-pov thawj, thiab ib txheej stab-proof txheej tiv thaiv npog.

3.2 Cov kev cai pom zoo

Lub tsho stab-resistant yuav tsum tsis muaj qhov tsis xws luag xws li tawg, kab ntab, thiab cov koob uas ploj lawm. Qhov saum npoo ntawm cov khoom siv stab-resistant tsis muaj qhov tsis xws luag xws li kev puas tsuaj, qhov tob tob, khawb, tawg, burrs, thiab lwm yam. Cov ntaub ntawv hlau yuav tsum tau kho nrog kev tiv thaiv xeb, thiab cov ntaub ntawv tsis yog hlau yuav tsum du. Tib txheej ntawm cov khoom siv los tiv thaiv yuav tsum tsis sib xws, tiaj tus, thiab tsis muaj qhov tsis xws luag xws li hauv zos protrusions thiab folds. Stab-resistant khaubncaws sab nraud povtseg uas muaj ntau txheej ntawm stab-resistant khoom yuav tsum muaj tib yam specifications thiab qhov ntev.

3.3 Qhov zoo, xim thiab kev tiv thaiv cheeb tsam yuav tsum tau ua

Qhov hnyav ntawm hom A stab-proof khaub ncaws tsawg dua lossis sib npaug li 2.8kg, thiab qhov hnyav ntawm hom B stab-proof khaub ncaws tsawg dua lossis sib npaug rau 1.0kg. Kev tswj xyuas qhov zoo ntawm cov khoom tuaj yeem ua kom ntseeg tau tias tus neeg hnav cov kev txav thiab kev tawm dag zog yuav tsis cuam tshuam thaum hnav. Cov xim ntawm cov khaub ncaws hnav-pov thawj yuav tsum yog xiav navy, thiab thaj chaw tiv thaiv ntawm cov stab-proof txheej yuav tsum ntau dua los yog sib npaug rau 0.25m2.

3.4 Anti-stab yuav tsum

Qib A stab-proof khaub ncaws siv rab riam D1, thiab lub cev sim siv lub zog cuam tshuam ntawm 24J±0.5J txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm Nyob rau hauv cov xwm txheej zoo puncture, cov khaub ncaws puncture-resistant tsis nkag mus; B-hom stab-resistant khaub ncaws siv D2 thiab D3 cov cuab yeej raws li, thiab lub cev ntsuas pierces cov stab-resistant khaub ncaws nrog rau lub zog ntawm 24J±0.5J. Nyob rau hauv cov ntaub ntawv ntawm zoo puncture, lub anti-puncture tsoos tsho tsis nkag.

3.5 Dej tsis kam thiab kub hloov pauv

Nyob rau hauv chav tsev kub, tom qab immersing lub stab-resistant khaub ncaws nyob rau hauv dej rau 30 feeb, los yog nyob rau ntawm ib tug ambient kub ntawm -20 degree mus rau 55 degree, lub stab-resistant kev ua tau zoo raws li qhov yuav tsum tau.

4. Cov khaub ncaws mos mos tshiab

Cov txheej txheem ntawm stab thiab mos txwv tsis kam yog txawv. Bulletproof feem ntau yog los tiv thaiv cov mos txwv puas rau cov khoom siv. Qhov cuam tshuam kinetic zog ntawm cov mos txwv disperses lub kinetic zog rau cov mos txwv cov khoom, uas diffuses thiab absorbs thaum lub sij hawm ntawm kev sib cuag nrog cov mos txwv cov khoom. Rau qhov teeb meem, txoj kev puas tsuaj yog isotropic. Kev tiv thaiv kab mob feem ntau yog ua raws li lub hauv paus ntsiab lus ntawm kev sib txhuam tus kheej-locking. Raws li cov riam pierces rau sab hauv ntawm cov stab-pov thawj nplua nrog ib lub zog kinetic, cov xov paj fiber ntau ntawm cov qauv sab hauv ntawm cov stab-proof suit yog txiav thiab shrunk, yog li ntawd cov riam yog clamped los ntawm cov xov paj. Cov xov paj yog txuas mus tas li, thiab nws cov kev sib txhuam tsis sib haum rau rab riam tiv thaiv rab riam txuas ntxiv mus. Thaum lub sij hawm no, lub xeev mus txog los ntawm deformation ntawm cov ntaub los ua lub xeev "locked". Thaum lub sij hawm puncture txheej txheem, kev puas tsuaj rau cov khoom los ntawm lub cuab tam yog tsuas yog shear puas thiab tensile puas. Yog li ntawd, lub zog ntawm cov fiber ntau dua, cov fibers ntau dua tuaj yeem raug sheared, thiab qhov ntom ntom ntawm cov xov paj hauv cov qauv ntaub, qhov ntau shearing quab yuam cov khaub ncaws stab-resistant tuaj yeem tiv taus, thiab cov xov paj yooj yim dua nyob rau hauv tus kheej. -locking lub xeev, qhov yooj yim dua nws yog los tiv thaiv Lub stab-pov thawj kev ua tau zoo ntawm stab suit yog zoo dua.

Ultra-siab molecular hnyav polyethylene fibers thiab aramid fibers feem ntau yog siv los npaj cov tub ntxhais tiv thaiv txheej ntawm stab-resistant khaub ncaws vim lawv ultra-siab zog thiab modulus, thiab txhua tus muaj ntau yam zoo heev. UHMWPE fibers yog cov fibers muaj zog tshaj plaws hauv ntiaj teb. Nws yog tsawg dua li dej thiab muaj cov khoom siv saw hlau hloov tau yooj yim. Nws yog ib qho khoom siv zoo tshaj plaws rau kev ua lub teeb thiab mos stab-resistant khaub ncaws. Txawm li cas los xij, vim nws qhov qis melting point, qhov kev ua tau zoo ntawm fiber ntau yuav txo qis ntawm qhov kub thiab txias, uas txwv nws daim ntawv thov hauv qee qhov chaw tshwj xeeb. Lub zog, modulus thiab elongation ntawm kev tawg ntawm aramid fibers yog qis dua cov ultra-high molecular hnyav polyethylene fibers, tab sis lawv muaj qhov kub thiab txias tsis kam thiab tuaj yeem siv rau qee qhov kub thiab txias. Ua ke qhov zoo ntawm ob, kev npaj ntawm ntau hom kev sib xyaw mos stab-resistant khaub ncaws ua los ntawm UHMWPE fiber ntau thiab aramid fiber ntau (raws li qhia hauv daim duab 1 thiab 2) tau dhau los ua ib qho qauv tshiab hauv kev tsim cov khaub ncaws stab-resistant. Cov khaub ncaws ruaj khov. Raws li kev txaus siab rau qhov kev ua tau zoo, cov khaub ncaws stab-resistant muaj cov yam ntxwv ntawm lightness, thinness thiab softness. Cov txheej txheem kev npaj thiab kev ntsuas kev ua tau zoo ntawm cov khaub ncaws stab-resistant no tau piav qhia hauv qab no. Raws li kev txaus siab rau qhov kev ua tau zoo, cov khaub ncaws stab-resistant muaj cov yam ntxwv ntawm lightness, thinness thiab softness. Cov txheej txheem kev npaj thiab kev ntsuas kev ua tau zoo ntawm cov khaub ncaws stab-resistant no tau piav qhia hauv qab no. Raws li kev txaus siab rau qhov kev ua tau zoo, cov khaub ncaws stab-resistant muaj cov yam ntxwv ntawm lightness, thinness thiab softness. Cov txheej txheem kev npaj thiab kev ntsuas kev ua tau zoo ntawm cov khaub ncaws stab-resistant no tau piav qhia hauv qab no.

4.1 Cov txheej txheem kev npaj cov khaub ncaws stab-resistant

4.1.1 Kev npaj ntawm ultra-high molecular hnyav polyethylene fibers

Siv ultra-high molecular hnyav polyethylene cob raws li cov khoom siv hauv paus thiab cov roj dawb hauv tsev ua cov kuab tshuaj, cov tshuaj spinning stock yog npaj los ntawm o thiab yaj nyob rau hauv lub hwj los ntawm cov txheej txheem, thiab yog stirred nyob rau hauv ib tug parallel ntxaib-ntsia hlau los tsim ib tug uniform yaj extruder thiab pauv mus rau spinneret Lub taub hau yog txau tawm, thiab khov collagen filaments tau los ntawm gel spinning molding txheej txheem. Cov khov collagen filaments tau muab rho tawm thiab ncab ntau theem, thiab thaum kawg high-strength thiab high-modulus polyethylene fibers tau txais.

4.1.2 Kev npaj cov stab-resistant chips

Kev npaj siab-zog thiab high-modulus polyethylene fibers yog kis tau tusyees nrog ib tug nteg tshuab, impregnated nrog ib tug tshwj xeeb impregnating tshuab thiab sai kho, thiab ces cov ntaub ntawv uas tau txais txheej yog tsis tu ncua cross-linked thiab compounded ntawm 0 degree, 90 degree, 45 degree, thiab 135 degree. Lub ultra-high molecular hnyav polyethylene stab-resistant non-woven npuag tau txais. Lub aramid woven npuag yog impregnated thiab kho sai heev los ntawm tib lub tshuab dipping los sau cov khoob ntawm cov ntaub npuag fiber ntau.

4.1.3 Kev npaj cov khaub ncaws stab-resistant

UHMWPE stab-resistant non-woven npuag (ib txheej ceev 150g / m2) thiab aramid woven npuag (ib txheej ceev 400g / m2) raug txiav thiab laminated raws li cov txheej txheem tsim loj thiab cov kev xav tau zoo, thiab sib dhos thiab sib xyaw ua ke, Lawv tau kub-sealed rau hauv tshwj xeeb anti-static hydrostatic tarpaulin los tsim ib lub hermetically kaw, stab-resistant nti. Ntxig cov stab-resistant chips rau hauv lub tsho-resistant khaub ncaws nyob rau hauv qhov kev txiav txim ntawm pem hauv ntej thiab nram qab kom cov stab-resistant khaub ncaws.

4.2 Anti-stab ua tau zoo kuaj

4.2.1 Test method

Qhov kev sim dynamic puncture yog tsim los raws li Ministry of Public Security's GA 68-2019 "Tub ceev xwm Stab-Proof Clothing" tus qauv, siv lub tshuab ntsuas qhov hnyav thiab cov cuab yeej txiav txheem (raws li qhia hauv daim duab 3 thiab 4). Cov kauj ruam kev sim yog raws li nram no:

1) Ntim cov ntaub thaiv npog, kos cov ntsiab lus rau ntawm qhov chaw, qhov kev ncua deb ntawm txhua qhov puncture tsis tsawg tshaj li 50 hli, thiab qhov kev ncua deb ntawm ntug ntawm cov nti yuav tsum siab dua 50 hli;

2) Txhim kho cov khoom siv hauv paus raws li tus qauv yuav tsum tau ua, thiab sim ntsuas tus nqi rov qab ntawm cov khoom siv hauv paus;

3) Preheat cov khoom siv hluav taws xob rau kev nyeem ntawv ruaj khov, thiab tom qab ntawd kho cov khoom siv los tiv thaiv cov khoom siv rov qab;

4) Txhim kho cov cuab yeej tshiab uas tsis tau siv rau ntawm lub cev poob thiab muab tso rau hauv qhov ntsuas qhov hnyav;

5) Kho lub taub hau ntawm cov hniav nrog rau qhov taw tes ntawm cov tshuaj tiv thaiv nti, tig rau ntawm qhov poob phaus nce khawm, nqa qhov hnyav poob mus rau qhov siab, thiab xyuas kom meej tias lub cev poob thiab rab riam muaj 24J kinetic zog. ua ke;

6) Tig lub pob poob, rab riam thiab lub cev poob yuav poob ua ke kom tiav thawj zaug;

7) Hloov cov ntsiab lus nkag mus, rov ua qhov kev xeem, thiab ua kom tiav qhov kev xeem ntawm lwm cov ntsiab lus.

4.2.2 Cov qhab nia xeem

Hauv ntau qhov kev sim ntawm cov tswv yim sib txawv, nws tau pom tias thaum UHMWPE tsis-woven npuag thiab aramid woven ntaub yog compounded nyob rau hauv ib tug tej yam kev faib ua feem, cov stab-proof kev kawm tau guaranteed kom tau raws li tus qauv, thiab tag nrho cov zoo ntawm stab. -cov ntaub ntawv pov thawj tiv taus cov khaub ncaws (kuaj nrog cov khoom siv hluav taws xob sib npaug), tuab (Tshuaj nrog cov khoom siv hluav taws xob sib npaug) thiab softness (kuaj nrog lub softness tester) tuaj yeem tswj tau ntawm qib zoo. Cov txiaj ntsig kev xeem tau pom nyob rau hauv Table 1.

5 Kev xaus

Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis thiab kev txhim kho ntawm tib neeg txoj kev paub txog kev nyab xeeb, cov khaub ncaws stab-resistant, raws li cov khoom siv tiv thaiv tseem ceeb, tau siv ntau thiab ntau dua. Los ntawm cov tub rog, tub ceev xwm, thiab kev ruaj ntseg rau cov neeg caij dav hlau thiab cov tub ceev xwm, nws tsis yog ib qho yooj yim rau hnav khaub ncaws hnav. Nyob rau tib lub sijhawm, txhawm rau tiv thaiv ib puag ncig nyuaj, cov kev xav tau rau kev hnav khaub ncaws hnav-tiv taus kuj tseem txhim kho tas li. Lub teeb yuag, lub teeb yuag, mos, thiab nyiam hnav cov khaub ncaws hnav-tiv taus tau dhau los ua cov khoom lag luam tseem ceeb, tuav lub khw loj.