Cov saw hlau yuav tsum tau muab pov tseg hauv ib qho xwm txheej hauv qab no, thiab nws tsis tuaj yeem kho thiab rov siv dua.
1. Thaum muaj qhov tawg ntawm qhov chaw ntawm cov saw rigging;
2. Thaum hnav ntawm seem txaus ntshai mus txog 10% ntawm qhov loj me.
3. Thaum lub torsional deformation tshaj 10 degrees.
4. Thaum qhov txaus ntshai ntawm cov saw thiab lub caj dab ntawm tus nuv yog plastically deformed.
5. Thaum hnav lub phaj nuv bushing mus txog 50% ntawm qhov loj me, lub bushing yuav tsum tau muab pov tseg, thiab tus pin yuav tsum tau hloov kho thaum hnav tshaj 3% ~ 5% ntawm nominal txoj kab uas hla.
6. Thaum lub phaj nuv thiab mandrel hnav mus txog 5% ntawm qhov loj me, lub mandrel yuav tsum tau muab pov tseg thiab hloov.
7. Thaum qhib kev kawm tau nce 15% piv nrog rau qhov loj me.
