Mapangidwe apangidwe
Chophimba chakunja ndi zinthu zotchinga zimapangidwa ndi pulasitiki, ndipo mtandawo umasindikizidwa mu groove yooneka ngati U yokhala ndi pepala lozizira lokhala ndi makulidwe pafupifupi 1.5mm; Mbali yakunja ndi zinthu zotchinga zimamangiriridwa ku mtanda, womwe umalumikizidwa ndi mtengo wautali wotalikirapo ndi zomangira ndipo ukhoza kuchotsedwa nthawi iliyonse. Pulasitiki yomwe imagwiritsidwa ntchito mu bumper ya pulasitiki iyi nthawi zambiri imapangidwa ndi poliyesitala ndi polypropylene pomanga jekeseni. Mwachitsanzo, bumper ya galimoto ya Peugeot 405 imapangidwa ndi zinthu za polyester ndipo imapangidwa ndi jekeseni wa jekeseni. Ma bumpers a Volkswagen's Audi 100, gofu, Santana ku Shanghai ndi Xiali ku Tianjin amapangidwa ndi zida za polypropylene poumba jekeseni. Palinso mtundu wa pulasitiki wotchedwa polycarbonate dongosolo kunja, amene infiltrates aloyi zigawo zikuluzikulu ndi utenga njira aloyi jekeseni akamaumba. Bumper yokonzedwayo sikuti imakhala yolimba kwambiri, komanso imakhala ndi ubwino wowotcherera, komanso imakhala ndi ntchito yabwino yophimba, ndipo imagwiritsidwa ntchito mowonjezereka pamagalimoto.
Ma geometry a bumper samangogwirizana ndi mawonekedwe agalimoto yonse kuti atsimikizire kukongola, komanso kutsatira mawonekedwe amakina ndi mayamwidwe amphamvu kuti awonetsetse kuti mayamwidwe a vibration ndi cushioning panthawi yamphamvu.
