Pakadali pano, Kevlar yakhala gawo limodzi la zobvala ndi zida zomwe moyo womwe moyo womwe moyo umakhala pangozi: asitikali ndi Silovikov, ankhondo ndi ofufuza, othamanga ndi ozifufuza. Zithunzi za Kevlar zimagwiritsidwa ntchito kulikonse, pomwe mphamvu yayikulu imafunikira, kuyambira matayala oyenda ndi kutha kwa matole a yacht, kukula kwake kumakulirakulira, ndipo matekinoloje opanga amalimbikitsidwa. . Izi zidapezedwa theka la zaka zapitazo, ndipo ambiri adzaona zachilendo kuti mayiyo adakhala Wolemba Wake.
Kodi Kevlar adawoneka bwanji?
Ndi zophiphiritsa kuti kukhazikitsidwa kwa ulusi wapaderawu Kolk muubwana unali wakhanda amakondedwa kuvala zovala za zidole. Nditamaliza sukulu, adalandira katswiri wa kamnegie yapadera ku Carnegie University, koma olota amagwiritsa ntchito mankhwala. Kuti mupeze ndalama zophunzirira ku yunivesite, mu 1946 mtsikanayo anayamba kugwira ntchito yodziwika bwino yomwe anadziwika kuti anali wotchuka. Mu 1964, gulu la kollyk lidagwira ntchito pakusintha kwa polyariamides - zinthu polymeric ndi mawonekedwe owoneka ngati ndodo yomwe imatha kusintha chingwe chachitsulo m'matayala. Kukana njira yosungunulira, Stephanie adatha kupeza njira yachilendo yachilendo, yomwe pakudutsa kudzera pa zosefera idasandulika ulusi wa Aramidi.
Pamene fiber yomwe idayamba kuyesa mphamvu, ofufuzawo adaganiza kuti zida zidawonongeka - mphamvu ya zatsopanozi zinali zoposa kasanu.
Zinthu zatsopano zotchedwa Kevlar, adalandira malonda pazomwe zidalipo. Inayamba kugwiritsa ntchito popanga matayala, zingwe, zipilala zophatikizika. Nthawi yomweyo, nyumba zankhondo ndi zamagetsi zimaperekedwa kwa mphamvu yayikulu ya ulusi wa poliyaramid, cholinga chake chinali chitukuko cha chitetezo. Lingaliro la zida zathupi lidapezeka pa nkhondo yoyamba yapadziko lonse (wolemba wake anali wolemba Conan Asyle), koma mbale zachikhalidwe zachikhalidwe zinali zovuta kwambiri komanso zodumphadumpha.
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Akatswiri a ku American Instional InsChiessi ya Chilungamo Pazaka zingapo zapitazi, pomwe adatsimikizira kuti kukana kwa puluber yofala kwambiri ya 38 kumapereka minofu ya Kevlar mu zigawo zisanu ndi ziwiri. Gawo lomaliza la mayeso am'munda lidawonetsa kuti mphamvu ya zida zoterezi imachepa ndi kunyowa kwake ndikuwonekera kwa kuwala kwa UV. Zinapezekanso kuti zinthu za kevlar zimapangitsa chitetezo chawo pambuyo pa mabungwe angapo, ndipo kuti salekerera kuti akuyeledwa ndi kutsuka.
Zotsatira za zomwe zidachitikazo zinali zida za KeVlar yokhala ndi minyewa ya minofu ya madzi, kupereka chitetezo kwa osanjikiza kuchokera kumadzi ndi dzuwa . Kuphatikiza apo, kesmets ya kevlar, magolovesi, ma stoneles nsapato, ndi zina zambiri zinagwiritsira ntchito ngati njira yotetezera munthu.
Katundu wa ulusi wa Aaramidi
Kuphatikiza pa mphamvu yayikulu, Kevlar ili ndi zinthu zina zabwino kwambiri, zomwezo:
- Mukalumikizana ndi moto ndi kutentha kwambiri, chikutini ichi sichimawotcha, osasuta ndipo sichisungunuka;
- Kevlar si poizoni osati kuphulika;
- Kutentha kwa mphuno zake ndi madigiri 430-450;
- Mphamvu ya chibemba cha chitsamba imayamba kuchepa pang'onopang'ono madigiri oposa 150;
- Pozizira, Kevlar imakhala yamphamvu, imatha kupirira kutentha kwamilomo (mpaka -200 madigiri);
- Izi ndi zamagetsi.
Kuphatikiza apo, nsalu ya kevlar imadziwika ndi zofewa, hygroscopicity komanso kuthekera kwa mpweya kusinthana, ndipo zimakhala bwino kwambiri mukamagwiritsa ntchito. Zowona, izi sizikugwira ntchito pa zovala zopangidwa kuti zizigwira ntchito poyendetsa ndi kutentha kwambiri. Kuti muwonjezere kutentha, kevlar imakutidwa ndi aluminiyamu. Zida kuchokera ku chiberekezi choterechi chimateteza ku radiation yamphamvu yamphamvu, kulumikizana ndi kutentha kotentha mpaka 500, komanso pama smeshes achitsulo chotentha.
Tiyeneranso kuwonjezeredwa kuti nkhaniyi ndi yophweka - mita imodzi ya nsalu imalemera 30-60 g, ndipo ngakhale siyingakhale yotchinga bwino kwambiri. Ena otsika mtengo amalimbikitsidwa ndi zingwe zomangira za Kevoror, zomwe zimawapatsa kukakamira ndi kung'ung'udza. Zovala zotere zimagwiritsidwa ntchito poyitanitsa zoteteza mu kugwira ntchito ndi zowoneka bwino, magolovesi, komanso mabatani osokoneza bongo. Kusamalira zinthu kuchokera kwa iwo ndikosavuta kwambiri. Asamayenera:
- Nthawi zambiri sambani;
- mabowo oyeretsa;
- kuwonekera kwa dzuwa.
Nkhani pamutu: Mundani Mundani Ndi Zida Zodwala Zokhala Ndi Zithunzi za Maganizo
Kodi kevlar amafunsira kuti?
Chomera chachikulu ichi chimapeza ntchito zosiyanasiyana - kuchokera ku mafakitale a ndege ndi malo kupita pamasewera ndi zovala. Kevlar imabwera pamsika mu mawonekedwe a ulusi, chingwe, nsalu, komanso gawo limodzi lazinthu zophatikizika ndi zophatikizika . Njira zazikuluzikulu zogwiritsira ntchito zake ndi:
- Kupanga matayala olimbikitsidwa;
- Kupanga mkuwa ndi zingwe za fiber;
- hydrotechnical ndi mafakitale-mafakitale opanikizika kwambiri;
- Ndege ndi malo aukadaulo;
- zomanga zombo;
- Prosthetics ndi zinthu za Orthopedic;
- Njira zotetezedwa kwa gulu lankhondo, nyumba zamagetsi, anthu omwe amagwira ntchito mopambanitsa;
- Zida ndi zida.
Mosakayikira, posachedwa titha kuyembekezera kusintha zinthu zodabwitsazi ndi mwayi watsopano womwe umagwiritsidwa ntchito.