Feem ntau lub voj qaum muaj peev xwm tuaj yeem ua tau ntau dua cov loading ntau tshaj li cov caws pliav.
1) Ordinary bolt khoom tsim los ntawm Q235 (A3).
2) Siv lub voj luaj siab siv cov ntaub ntawv 45 # hlau, hlau hlau (xws li 20MnTiB, 35VB) los yog lwm yam khoom siv zoo, ua tom qab ntsuas kub, ntxiv zog.
3) Qhov txawv ntawm ob yog lub zog ntawm cov khoom sib txawv.
Thawj kis: los ntawm cov ntaub ntawv raw:
High xuas bolts yog ua los ntawm cov ntaub ntawv muaj zog. Cov ntsia hlau, lub txiv ntseej thiab cov ntxhua khaub ncaws siv sib zog ua kom muaj zog tho loj, feem ntau siv 45 steel, 40 steel, 20 manganese titanium boron hlau. Ordinary bolt feem ntau siv Q235 steel manufacturing.
Qhov thib ob taw tes: los ntawm lub zog ntawm qhov pom ntawm lub zog:
Feem ntau siv qib 8.8 thiab qib 10.9 ob qib siv, uas feem ntau yog qib 10.9. Ordinary bolt zog theem yuav tsum qis, feem ntau qib 4.6 & qib 4.8 thiab qib 5.6. (8.8S thiab 10.9S rau steel qauv nplooj siab)
