Isilingi sokuphakamisa esigcinwe simanzi sisenokubonakala singonakali, kodwa ukufuma kunokubangela ukukhula kwesifo sokungunda, ukuthotywa kwefayibha, yaye—kwimeko yezilingi zenayiloni—ukuncipha kwamandla okwexeshana ukuya kuthi ga kwi-15% xa kumanzi, kuze amandla abuyiselwe xa yomile. Okubaluleke ngakumbi, izilingi zenayiloni zinokuphulukana ne-25% yamandla azo xa zimanzi ngenxa yokufunxa ukufuma. Izilingi zePolyester, ngokuchaseneyo, azichatshazelwa kancinci kukufuma kodwa zisenokubandezeleka kukungunda kunye nokubola ukuba zigcinwe zifumile. Esi sikhokelo sivavanya imingcipheko ehambelana ne-slings emanzi, ubuthathaka obuthile bezinto ezahlukeneyo zokwenziwa, kunye nokuhlolwa kunye neenkqubo zokomisa ezifunekayo ngaphambi kokubuyisela isilingi esimanzi kwinkonzo.
Isilingi esiphakamisayo sinokuphelelwa ngamandla ixesha elide ngaphambi kokuba sibonakale sigugile—ngokufuthi ngaphandle kwesilumkiso. Ubushushu obugqithisileyo, imitha ye-ultraviolet (UV), kunye nokuvezwa kweekhemikhali zezona zinto zintathu zixhaphakileyo zokusingqongileyo ezonakalisa imicu yokwenziwa. Ngokutsho kweZiko laseKhanada leMpilo noKhuseleko lwaseMsebenzini (CCOHS), ukukhanya kwelanga, ukufuma, kunye namaqondo obushushu angaphezu kwama-90°C (194°F) anokonakalisa zombini izilingi zenayiloni nepolyester. I-OSHA iphinda iphawule ukuba amandla esilingi athotywa kukuvezwa kukukhanya kwelanga kunye nokukhanya kwe-ultraviolet, kwaye icebisa ukuba udibane nomenzi okanye umntu ofanelekileyo kwiimfuno ezongezelelweyo zomhlalaphantsi. Esi sikhokelo sivavanya ukuba imeko nganye yokusingqongileyo ichaphazela njani ingqibelelo yesilingi, zeziphi iimpawu ezilumkisayo ekufuneka uzijonge, kunye nendlela yokukhusela izilingi zakho zokuphakamisa ekungaphumeleli kwangaphambi kwexesha.
Isilingi esiphakamisayo esine-7:1 into yokhuseleko sinamandla okuqhawuka ngokuphindwe kasixhenxe kumda womthwalo olinganiselweyo wokusebenza. Oku kuthetha ukuba isilingi esilinganiselwe kwitoni e-1 kufuneka sixhathise ubuncinane iitoni ezisi-7 phambi kokuba sisilele. I-7: I-1 yokhuseleko i-factor igunyazisiwe yimigangatho ephambili yoshishino kuquka i-EN 1492-1, EN 1492-2, kunye ne-AS 4497: 2018 ye-slings synthetic slings. Eli nqaku lichaza umahluko phakathi kwento yokhuseleko kunye nomda womthwalo wokusebenza, kutheni i-7: i-1 isemgangathweni we-slings slings, indlela ethelekisa ngayo nezinye iintlobo zezixhobo, kwaye kutheni le mida yokhuseleko ibalulekile ekukhuseleni abasebenzi kunye ne-asethi kwimisebenzi yokunyusa yehlabathi.
Isilingi esiphakamisayo esiye sadlula ubomi baso benkonzo ekhuselekileyo siyingozi—ayisosixhobo. Nangona kunjalo uninzi lweengcali zokurhweba zisokola ngombuzo olula: kufuneka ndithathe indawo kangaphi izilingi zam zokuphakamisa? Impendulo ayilonani elinye. Kuxhomekeke kuhlobo lwezinto eziphathekayo, ukusetyenziswa rhoqo, iimeko zokusebenza, kunye neziphumo zokuhlola. Esi sikhokelo sitsala imigangatho yoshishino (ASME B30.9, EN 1492), izikhokelo zomvelisi, kunye namava okuvelisa i-Lishenflex ukubonelela ngeendlela ezicacileyo zokutshintsha. Sijongana nobomi benkonzo obulindelekileyo ngohlobo lwesilingi, amaxesha okuhlola, iimpawu zomhlala-phantsi, kunye nomahluko obalulekileyo phakathi 'kweminyaka yobudala' kunye 'nemeko-siseko' endaweni.