Vim li cas qhov ntev ntawm ob lub pob khawm hloov tau sib txawv?

Lifting sivyog ib qho cuab yeej nqa tau zoo, feem ntau yog siv los nqa cov khoom. Tom qab yuav ob peb cov khoom siv hluavtaws, qee cov neeg siv pom tias qhov ntev ntawm cov hlua sib txawv. Yog li dab tsi yog vim li cas rau qhov sib txawv ntev ntawm ob-buckle saj zawg zog slings?

Yog vim li cas vim li cas qhov ntev ntawm lub nplhaib slings sib txawv tuaj yeem tshwm sim los ntawm cov txheej txheem ntau lawm. Peb kuj paub tias muaj ntau lub tuam txhab ua lag luam hauv khw. Cov tuam ntxhab sib txawv siv cov txheej txheem ntau lawm thiab cov txheej txheem thaum tsim cov hlua. Cov ntaub ntawv raw thiab hluavtaws fiber ntau nqa siv raw cov ntaub ntawv tseem muaj qhov sib txawv zoo, yog li qhov ntev ntawm cov khoom nqa nqa yuav txawv. Tsis tas li ntawd, qhov sib txawv ntawm qhov sib txawv ntawm qhov kawg ntawm kev nqa txoj siv sia kuj muaj feem xyuam rau kev siv ib puag ncig. Yog tias cov neeg siv siv cov hlua nqa nqa hauv qhov chaw sib txawv, qhov ntev ntawm cov khoom nqa nqa yuav hloov pauv. Nyob rau hauv ib qho chaw ntub dej, polyester sling yuav deform vim ya raws, ua rau sib txawv sling lengths. Tsis tas li ntawd, thaum siv nyob rau hauv qhov chaw kub kub, lub qhov muag lifting straps yuav deform vim thermal expansion thiab contraction, uas ua rau txawv lengths ntawm lifting straps.