Txawv ntawm cov thawv loj thiab tho qhov sib xyaw
Nrog cov npe sib txawv, qhov kev ua tau zoo dua yog txawv. Feem ntau, cov laj fai loj muaj peev xwm tuaj yeem tiv taus ntau tshaj qhov qub ciav hlau ntawm tib cov lus qhia.
Cov khoom siv ntawm cov thooj ntawv cuav yog ua los ntawm Q235 (piv txwv li A3).
Cov khoom ua muaj zog loj 45 # hlau, hlau alloy (xws li 20MnTiB, 35VB) los yog lwm cov khoom zoo, ua los ntawm kev kho kub, nce zog.
Qhov txawv ntawm ob yog qhov txawv ntawm cov ntaub ntawv muaj zog.
Thawj kauj ruam: Los ntawm raw khoom:
High-strength bolts yog tsim los ntawm cov ntaub ntawv muaj zog. Lub bolts, ceev thiab ntxuav ntawm lub hwj huam loj yog ua los ntawm high-lub zog steel. Lawv nquag siv nyob rau hauv 45 steel, 40-boron hlau thiab 20-manganese-titanium-boron hlau. Ordinary bolts feem ntau yog ua los ntawm Q235 steel.
Qhov thib ob taw tes: Los ntawm lub dag lub zog:
Feem ntau siv 8.8 thiab 10.9 ob qib siv, ntawm 10.9 feem ntau. Qhov ntsuas theem sab nraud yog tsawg, feem ntau 4.4, 4.8, 5.6. (8.8S thiab 10.9S yog tshwj xeeb rau cov qauv hlau)