• chikwangwani cha tsamba

Momwe mungasankhire chingwe choyenera champhamvu?

Zingwe zokwera zimatha kugawidwa kukhala zingwe zosunthika ndi zingwe zokhazikika.Chingwe chosunthika chimakhala ndi ductility yabwino kotero kuti pakakhala nthawi yakugwa, chingwecho chikhoza kutambasulidwa kumlingo wina kuti chichepetse kuwonongeka komwe kumabwera chifukwa cha kugwa mofulumira kwa wokwera.

Pali njira zitatu zogwiritsira ntchito zingwe zosunthika: chingwe chimodzi, theka chingwe, ndi zingwe ziwiri.Zingwe zogwirizana ndi ntchito zosiyanasiyana ndizosiyana.Chingwe chimodzi ndichomwe chimagwiritsidwa ntchito kwambiri chifukwa ntchito yake ndi yosavuta komanso yosavuta kugwiritsa ntchito;Zingwe zatheka, zomwe zimadziwikanso kuti zingwe ziwiri, zimagwiritsa ntchito zingwe ziwiri kuti zimangirire pamalo oyamba odzitetezera nthawi imodzi pokwera, ndiyeno zingwe ziwirizo zimamangidwira m'malo osiyanasiyana oteteza kuti njira ya chingweyo isinthe mwanzeru. kukangana pa chingwe kumatha kuchepetsedwa, komanso chitetezo chowonjezereka chifukwa pali zingwe ziwiri zoteteza wokwera.Komabe, sizimagwiritsidwa ntchito kawirikawiri pakukwera mapiri kwenikweni, chifukwa njira yogwiritsira ntchito chingwe chamtunduwu ndi yovuta, ndipo ambiri okwera mapiri amagwiritsa ntchito njira yoponyera ndi kupachika mofulumira, zomwe zingathenso kusintha bwino njira ya chingwe chimodzi;
Chingwe chapawiri ndicho kuphatikiza zingwe ziwiri zopyapyala kukhala chimodzi, kuti ateteze ngozi ya chingwe chodulidwa ndi kugwa.Nthawi zambiri, zingwe ziwiri za mtundu womwewo, chitsanzo, ndi batch zimagwiritsidwa ntchito pokwera zingwe;Zingwe zokhala ndi mainchesi okulirapo zimakhala ndi mphamvu yonyamula bwino, kukana ma abrasion, komanso kulimba, komanso ndizolemera kwambiri.Pakukwera kwa chingwe chimodzi, zingwe zokhala ndi mainchesi 10.5-11mm ndizoyenera kuchita zinthu zomwe zimafuna kukana kuvala kwambiri, monga kukwera makoma akulu amiyala, kupanga mapangidwe a glacier, ndikupulumutsa, nthawi zambiri pa 70-80 g/m.9.5-10.5mm ndi makulidwe apakatikati omwe amatha kugwiritsa ntchito bwino, nthawi zambiri 60-70 g/m.Chingwe cha 9-9.5mm ndi choyenera kukwera mopepuka kapena kukwera mwachangu, nthawi zambiri pa 50-60 g/m.Kutalika kwa chingwe chomwe chimagwiritsidwa ntchito kukwera kwa theka la chingwe ndi 8-9mm, nthawi zambiri 40-50 g/m.Kutalika kwa chingwe chomwe chimagwiritsidwa ntchito pokwera zingwe ndi pafupifupi 8mm, nthawi zambiri 30-45g/m.

Zotsatira
Mphamvu yamphamvu ndi chizindikiro cha momwe chingwe chikugwirira ntchito, chomwe chimakhala chothandiza kwambiri kwa okwera.Kutsika kwa mtengowo, kumapangitsanso bwino ntchito ya chingwe, yomwe ingateteze bwino okwera.Nthawi zambiri, mphamvu ya chingwe imakhala pansi pa 10KN.

Njira yeniyeni yoyezera mphamvu ya mphamvu ndi: chingwe chomwe chimagwiritsidwa ntchito kwa nthawi yoyamba chimagwa pamene chimalemera 80kg (makilogramu) ndi kugwa (Fall Factor) ndi 2, ndipo kupanikizika kwakukulu komwe zimbalangondo zimanyamula.Pakati pawo, coefficient ya kugwa = mtunda wolunjika wa kugwa / kutalika kwa chingwe.

Chithandizo chamadzi
Chingwecho chikasungunuka, kulemera kwake kudzawonjezeka, chiwerengero cha kugwa chidzachepa, ndipo chingwe chonyowa chidzazizira pa kutentha kochepa ndikukhala popsicle.Choncho, kukwera pamwamba, ndikofunikira kwambiri kugwiritsa ntchito zingwe zopanda madzi pokwera ayezi.

Chiwerengero chachikulu cha kugwa
Chiwerengero chachikulu cha kugwa ndi chizindikiro cha mphamvu ya chingwe.Kwa chingwe chimodzi, kuchuluka kwa kugwa kumatanthawuza kugwa kwa 1.78, ndipo kulemera kwa chinthu chogwa ndi 80 kg;Kwa chingwe cha theka, kulemera kwa chinthu chakugwa ndi 55 kg, ndipo zinthu zina sizisintha.Nthawi zambiri, kuchuluka kwa zingwe kumagwa nthawi 6-30.

Kukulitsa
Ductility ya chingwe imagawidwa kukhala dynamic ductility ndi static ductility.Dongosolo losunthika limayimira kuchuluka kwa chingwe chotalikirapo pamene chingwecho chimalemera 80 kg ndipo kugwa kokwanira ndi 2. Kutalikirako kumayimira kuchuluka kwa kutalika kwa chingwe pamene ikulemera 80 kg popuma.

Chingwe Champhamvu (Nkhani) (3)
Chingwe Champhamvu (Nkhani) (1)
Chingwe Champhamvu (Nkhani) (2)

Nthawi yotumiza: Jan-09-2023