Ukusebenza: Iingcali zoshishino zilumkisa ngeengozi zokhuseleko kwimveliso engaphantsi komgangatho
Kwihlabathi elinzima lokukhusela i-ballistic, inkqubo yokubumba izinto ezingezizo zesinyithiizigcina-ntloko zebholaiye yavela njengento ebalulekileyo ekukhuseleni abasebenzi basemkhosini, amagosa omthetho, kunye neengcali zokhuseleko. Abantu abangaphakathi kushishino kunye nophuhliso lwakutshanje lwetekhnoloji bagxininisa ukuba iindlela zokubumba ezingaphantsi komgangatho zinokubeka emngciphekweni kakhulu ukusebenza kwesigcina-ntloko, ngelixa ukwenziwa ngokuchanekileyo kuqinisekisa ukuthotyelwa kwemigangatho yokhuseleko yehlabathi kwaye kwandisa amazinga okusinda kwabasebenzisi.
Ayiyoyesinyithiizigcina-ntloko zebhola, ngoku umgangatho weshishini ngenxa yokuba zilula kwaye zikhululekile xa zithelekiswa nezinye iindlela zesinyithi ezindala, zixhomekeke kwizinto eziphambili ezidityanisiweyo ezifana ne-aramid (Kevlar), i-polyethylene enobunzima obuphezulu kakhulu (UHMWPE), kunye ne-carbon fiber. Ezi zinto zenziwe njengeendwangu ezifakwe ngaphambili (prepregs) kwaye zenziwe nge-compression molding—inkqubo apho ubushushu, uxinzelelo, kunye noyilo lwe-mold zimisela ngokuthe ngqo ukuthembeka kwemveliso yokugqibela. “Inqanaba lokubumba kulapho amandla okukhusela esigcina-ntloko enziwa khona,” ucacisa uGqr. Elena Marquez, ingcali yesayensi yezinto kwi-International Ballistic Protection Association (IBPA). “Nokungangqinelani okuncinci ekusasazweni koxinzelelo okanye kulawulo lobushushu kunokudala ubuthathaka besakhiwo obungaphumeleliyo xa kutshayiswa.”
Iingozi Zokubumba Okubi
Ukubumba kwe-hydraulic press yendabuko, okusasetyenziswa kakhulu kwimveliso engabizi kakhulu, kudla ngokubangela ukusetyenziswa koxinzelelo olungalinganiyo olulinganiselwe kwiindlela ezithe nkqo. Esi siphene sibangela ubukhulu begobolondo lesigcina-ntloko obungaguqukiyo, ngakumbi kwicandelo elingaphambili apho ithambeka elithambileyo lifumana amandla amancinci okucinezelwa. Idatha yovavanyo evela kwi-IBPA ibonisa ukuba izigcina-ntloko ezingabunjwanga kakuhle zihlala zibonisa ubunzulu bokugoba ngaphambili obudlula i-30mm xa zijongwa kwiimbumbulu zepistol ezingama-54 (445±10m/s), zisilela ukuhlangabezana nomgangatho we-GA 293-2012 waseTshayina oyalela ukugoba okuphezulu kwe-30mm kwiimpembelelo zangaphambili. Ukongeza, uxinzelelo olungalinganiyo lonakalisa izakhiwo zefayibha emacaleni esigcina-ntloko, kunciphisa ukumelana neziqwenga zesantya esiphezulu—ngexabiso le-V50 (isantya apho i-50% yeziqwenga zingena khona) siwa ngaphantsi kwe-610m/s efunekayo echazwe kwimigangatho ye-GJB 5115A-2012.
Ukubumba okungekho semgangathweni kukwakhokelela ekudibaneni okungonelanga kwe-resin phakathi kwee-fiber layers. “Xa ii-prepregs zingacinezelwanga ngokulinganayo, ii-air pockets ziyavela, kwaye ukusasazwa kwe-resin kuyaguquguquka,” utshilo uMark Williams, umlawuli wemveliso kumvelisi wezixhobo ze-ballistic ophambili. “Ezi zithuba zisebenza njengeendawo ezibuthathaka, zivumela ii-projectile okanye ii-shrapnel ukuba zingene kwisigcina-ntloko okanye zidlulisele amandla amaninzi e-kinetic entlokweni yomntu onxibe.” Ezi ziphene zidibene nokwanda kwama-40% kwiingozi zokulimala kwengqondo kwiimvavanyo zasentsimini, ngokutsho kophando luka-2025 olupapashwe kwi-Ordnance Material Science and Engineering.
Ukubumba ngokuchanekileyo: Indlela eya kuKhuselo oluPhezulu
Inkqubela phambili kubuchwepheshe bokucinezela obuyi-isostatic ijongana nale mingeni ngokusebenzisa uxinzelelo olulinganayo kuzo zonke iindlela, ithobela umgaqo kaPascal.
Iiparameter ezibalulekileyo ekubumbeni ngokuchanekileyo ziquka ulawulo lobushushu (170–180℃ kwii-composites ezisekelwe kwi-phenolic resin), amanqanaba oxinzelelo (7–8kg/cm²), kunye nexesha lokuhlala (imizuzu eli-10–15). Iinkqubo ezizenzekelayo zijonga ezi zinto ziguquguqukayo ngexesha langempela, zithintela ukugqithisa okonakalisa iifayibha ze-UHMWPE (ezifuna amaqondo obushushu angaphantsi kwe-130℃) okanye ucinezelo olungaphantsi olushiya iileya zibotshelelwe ngokukhululekileyo. Le nkqubo ikwadibanisa iindlela zokusika imiphetho, inciphisa umonakalo emva kokubumba kwimiphetho yefayibha enokonakalisa amandla esakhiwo.
Ubizo lweShishini lokuJonga uMgangatho
Njengoko imfuno yehlabathi yezigcina-ntloko ze-ballistic ikhula, amaqumrhu olawulo agxininisa umgangatho wokubumba kwiinkqubo zesatifikethi. I-NIJ (iZiko leSizwe loBulungisa) e-US kunye neSebe loKhuseleko loLuntu laseTshayina ngoku lifuna abavelisi ukuba bangenise amaxwebhu enkqubo yokubumba kunye neziphumo zovavanyo lwempembelelo. “Isiqinisekiso sesigcina-ntloko
"I-n ithembeke kuphela xa ivelisa ngokungaguquguqukiyo," utshilo uMarquez we-IBPA. "Abathengi kufuneka baqinisekise ukuba abavelisi basebenzisa ubuchwepheshe bokubumba ngokuchanekileyo, bangaxhomekeki nje kumgangatho wezinto eziluhlaza."
Kubasebenzisi bokugqibela, iziphumo zicacile: amandla esigcina-ntloko okusindisa ubomi axhomekeke kubunzima benkqubo yaso yokubumba.isigcina-ntloko sebhola, bayathemba ukuba iza kusebenza phantsi koxinzelelo olukhulu,” wongezelela uWilliams. “Oko kuthemba kwakhelwe kwisikhunta—apho ubunjineli obuchanekileyo buguqula imicu edityanisiweyo ibe lukhuselo olungenakugqobhozwa.”
Njengoko izinto ezintsha zobuchwepheshe ziqhubeka nokuphucula iindlela zokubumba, eli shishini lisondela ekupheliseni ukusilela okunokuthintelwa, liqinisekisa ukuba abo bakwimigca ephambili banokufikelela kwizixhobo ezihlangabezana nemigangatho ephezulu yokhuseleko nokusebenza.
Ixesha leposi: Jan-13-2026