Ma rivets akale ndi timitengo tating'ono topangidwa ndi matabwa kapena zinthu zofewa, ndipo thupi lachitsulolo lingakhale kholo la rivet yomwe tikudziwa masiku ano.
Palibe kukayika kuti ndi njira yolumikizira zitsulo zodziwika bwino, kuyambira kale kugwiritsa ntchito chitsulo chofewa mpaka pano, mwachitsanzo: M'nthawi ya Bronze Aigupto anakoka ma rivets asanu ndi limodzi amatabwa kunja kwa mawilo opindika, ndipo Agiriki anapambana kupanga ziboliboli zazikulu ndi bronze, kenako anakoka zipilalazo pamodzi. Mu 1916, pamene kampani yopanga ndege ya ku Britain ya H. Pamene V White inapeza rivets yobisika yomwe ingathe kukokedwa mbali imodzi, sizikuyembekezeredwa kuti rivets idzagwiritsidwa ntchito kwambiri masiku ano.
Kuyambira pa ndege mpaka makina aofesi, zamagetsi ndi zida zosewerera, riveti iyi ya blind tsopano yakhala njira yolumikizirana yogwira mtima komanso yolimba. Riveti zopanda kanthu zimapangidwa makamaka kuti zigwiritsidwe ntchito popanga kapena kukonza zida za akavalo, ndipo pamene riveti yopanda kanthu idapangidwa, sizinali zomveka bwino, koma zidazo zidapangidwa m'zaka za m'ma 900 kapena 1000.
Kavalo wokoka, monga nsapato ya akavalo yokhala ndi misomali, anamasula akapolo ku ntchito yolemetsa, ndipo rivetiyo inayambitsanso zinthu zambiri zofunika, monga zopukutira zitsulo za ogwira ntchito zamkuwa ndi zitsulo ndi ubweya wa nkhosa ndi lumo. Zomwe zimagwiritsidwa ntchito kwambiri ndi ma rivets amtundu wa R, ma fan rivets, ma core rivets (core rivets), ma rivets a mitengo, mutu wozungulira, ma flat, ma semi-hollow rivets, ma solid rivets, ma core rivets, ma hollow rivets, omwe nthawi zambiri amagwiritsidwa ntchito kulumikiza zigawo zokoka ndi kusintha kwawo. Kawirikawiri ndi zosakwana 8 mm zokhala ndi riveting yozizira, zazikulu kuposa kukula kwa kugwiritsa ntchito riveting yotentha. Komabe, pali zosiyana, monga dzina la maloko ena, omwe amakoka chifukwa cha kusokoneza kwa rivet ndi dzenje la thupi loko.
Nthawi yotumizira: Novembala-26-2020