Ma rivets akhungu amagwiritsidwa ntchito kwambiri m'mafakitale monga zovala ndi nsapato. Ma rivets obowo amapangidwa kuchokera padzenje kupita kumutu pamaziko a ma semi hollow rivets. Chifukwa cha kulemera kwawo kopepuka komanso mitu yofooka ya misomali, amagwiritsidwa ntchito popangira zinthu zopanda zitsulo zokhala ndi katundu wochepa.
Ma rivets opanda kanthu nthawi zambiri amagwiritsidwa ntchito m'mafakitale monga zovala ndi nsapato,pomwe mbali zolimba ziyenera kutsukidwanso ndikugwiritsidwa ntchito polumikiza zida zolemetsa. Nthawi zambiri amakhala osasunthika, ndipo ma rivets a semi hollow amagwiritsidwa ntchito kwambiri. Mapeto a tayi (yokhala ndi mchira waung'ono) misomali imapangidwa ndi waya wolimba ndipo imatha kulowa m'mbale zachitsulo mkati mwa makulidwe a 0.5mm popanda kufunikira kwa mabowo.
Ma Rivets sangathe kupindika kapena kupunduka, ndipo amagwiritsidwa ntchito kwambiri m'mabokosi achinsinsi, mabokosi oyenda, ndi zikwama zankhondo, ma rivets a Hollow (ma semi hollow rivets) amapangidwa pogwiritsa ntchito waya wosinthika ndipo nthawi zambiri amafuna kuti sangathe kusweka atatha. Pali mitundu yambiri ya ma rivets, ndipo tsopano zoseweretsa zina zayamba kugwiritsa ntchito misomali yopanda dzenje kapena misomali ya ana ndi mayi kuti isinthe ma shafts pamlingo waukulu, zomwe zingachepetse kwambiri ndalama zopangira. Makoko apakati ndi ma rivets owoneka bwino amagwiritsidwa ntchito kwambiri popangira zida zoonda komanso zofewa, zomwe nthawi zambiri zimafunikira zochepa. Zida zopangira nthawi zambiri zimapangidwa kuchokera kuzinthu zokhala ndi pulasitiki yabwino.
Ma rivets akale kwambiri anali mabawuti ang'onoang'ono opangidwa ndi matabwa kapena fupa, ndipo matupi akale azitsulo amatha kukhala makolo a ma rivets omwe timawadziwa lero. Mosakayikira, ndiwo njira yakale kwambiri yodziwika bwino yolumikizira zitsulo ndi anthu, kuyambira pomwe adayamba kugwiritsa ntchito chitsulo chosungunuka. Mwachitsanzo, m'nthawi ya Bronze Age, Aigupto ankagwiritsa ntchito nthiti kuti amangirire matabwa asanu ndi limodzi pa mizere yakunja ya mawilo olowetsedwa pamodzi. Agiriki atapambana bwino ziboliboli zazikulu zamkuwa, adagwiritsa ntchito ma rivets kuti agwirizane ndi zigawo zosiyanasiyana.
Ma rivets a Hollow amapangidwa makamaka ndi cholinga chopanga kapena kukonza zida zamagetsi. Sizidziwikiratu kuti zida zopangira ma hollow zidapangidwa liti, koma zida zomangira zidapangidwa pakati pazaka za m'ma 9 kapena 10 AD. Zingwe zomangika, ngati ziboda zokhala ndi misomali, zimamasula akapolo ku ntchito yolemetsa. Ma Rivets adayambitsanso zinthu zambiri zofunika, monga zitsulo zachitsulo zomwe zimagwiritsidwa ntchito ndi amkuwa ndi chitsulo ndi lumo la ubweya wa nkhosa.
Mu 1916, pamene HV White wa kampani yopanga ndege ya ku Britain analandira kaye chiphaso cha ma rivets akhungu omwe amatha kuwongoleredwa mbali imodzi, anthu sankayembekezera kuti ma rivets oterowo azigwiritsidwa ntchito kwambiri masiku ano. Kuchokera kumlengalenga kupita kumakina akuofesi, zinthu zamagetsi, ndi zida zamasewera, tinganene kuti rivet yakhungu iyi yakhala njira yolumikizirana yolimba komanso yokhazikika.
Nthawi yotumiza: Jun-05-2023
