Kodi chingwe chotetezera chimadulidwa zaka zingati?

Ndime 5.2.2 ya ASTM standard F1740-96(2007) ikuwonetsa kuti moyo wautali kwambiri wa chingwe ndi zaka 10.Komiti ya ASTM imalimbikitsa kuti chingwe chotetezera chitetezo chiyenera kusinthidwa ngakhale sichinagwiritsidwe ntchito patatha zaka khumi zosungidwa.

Tikatulutsa chingwe chachitetezo kuti chigwire ntchito ndikuchigwiritsa ntchito pamalo akuda, kwadzuwa ndi mvula, kuti chizitha kuthamanga mwachangu pazitsulo, zogwira zingwe komanso zotsika pang'onopang'ono, zotsatira zake zidzakhala zotani?Chingwe ndi nsalu.Kupinda, kumeta, kugwiritsa ntchito pamwamba pake ndi kutsitsa/kutsitsa zonse zipangitsa kuti ulusi uvale, motero kuchepetsa kugwiritsa ntchito chingwe.Komabe, sizikudziwika bwino chifukwa chake kuwonongeka kwazing'ono kwa zingwe kudzaunjikana mu kuwonongeka kwakukulu, ndipo chifukwa chake mphamvu yogwiritsira ntchito zingwe mwachiwonekere imachepetsedwa.

Bruce Smith, mlembi wina wa On Rope, adasonkhanitsa ndikuthyola zingwe zoposa 100 kuti afufuze phanga.Malinga ndi kugwiritsidwa ntchito kwa zingwe, zitsanzo zimagawidwa kukhala "zatsopano", "zogwiritsidwa ntchito mwachizolowezi" kapena "zozunzidwa".Zingwe "zatsopano" zimataya mphamvu za 1.5% mpaka 2% chaka chilichonse, pamene zingwe "zogwiritsidwa ntchito mwachizolowezi" zimataya mphamvu za 3% mpaka 4% chaka chilichonse.Smith adamaliza kuti "kusamalira bwino zingwe ndikofunikira kwambiri kuposa moyo wautumiki wa zingwe."Kodi chingwe chotetezera chimadulidwa zaka zingati?

Kuyesera kwa Smith kumatsimikizira kuti ikagwiritsidwa ntchito mopepuka, chingwe chopulumutsira chimataya mphamvu ya 1.5% mpaka 2% chaka chilichonse pafupifupi.Ikagwiritsidwa ntchito pafupipafupi, imataya mphamvu 3% mpaka 5% chaka chilichonse pafupifupi.Chidziwitsochi chingakuthandizeni kuyerekeza kutayika kwa mphamvu kwa chingwe chomwe mumagwiritsa ntchito, koma sichingakuuzeni ngati muyenera kuchotsa chingwecho.Ngakhale mutha kuyerekeza kutayika kwa mphamvu kwa chingwe, muyeneranso kudziwa kuti kutayika kwa mphamvu kovomerezeka ndi chiyani musanachotse chingwe.Kuyambira lero, palibe muyezo womwe ungatiuze momwe chingwe chotetezera chiyenera kukhalira cholimba.

Kuphatikiza pa kutayika kwa alumali ndi mphamvu, chifukwa china chochotsera zingwe n'chakuti zingwe zawonongeka kapena zingwe zawonongeka mokayikira.Kuyang'ana pa nthawi yake kungapeze zizindikiro zowonongeka, ndipo mamembala a gululo akhoza kufotokoza m'kupita kwa nthawi kuti chingwe chagundidwa ndi mphamvu yowonongeka, yogundidwa ndi miyala kapena pansi pakati pa machira ndi khoma.Ngati mwasankha kuchotsa chingwe, chotsani ndikuyang'ana mkati mwa malo owonongeka, kuti mudziwe zambiri za momwe khungu lachingwe likuwonongeka ndipo lingathe kuteteza pachimake cha chingwe.Nthawi zambiri, pachimake chingwe sichidzawonongeka.

Apanso, ngati mukukayikira za kukhulupirika kwa chingwe chachitetezo, chotsani.Mtengo wosinthira zida siwokwera mtengo kwambiri kuti uike moyo wa opulumutsa pachiswe.