Cov ntsia hlau U-puab yog cov khoom tsis yog tus qauv uas feem ntau siv los kho cov raj xws li cov kav dej lossis cov nplooj ntawv xws li cov nplooj ntawv tsheb. Vim nws zoo li U, nws tuaj yeem ua ke nrog cov txiv ntoo, yog li nws tseem hu ua U-puab ntsia hlau lossis caij ntsia hlau.
Cov duab tseem ceeb ntawm cov ntsia hlau U-puab suav nrog lub voj voog ib nrab, lub kaum sab xis plaub fab, daim duab peb ceg, daim duab peb ceg oblique thiab lwm yam. Cov ntsia hlau U-puab nrog cov yam ntxwv ntawm cov khoom siv sib txawv, qhov ntev, txoj kab uas hla thiab qib zog tuaj yeem xaiv raws li qhov chaw siv sib txawv thiab cov kev xav tau.
Nws muaj ntau yam kev siv, feem ntau yog siv rau kev tsim kho thiab kev teeb tsa, kev sib txuas ntawm cov khoom siv kho tshuab, tsheb thiab nkoj, choj, qhov av, kev tsheb ciav hlau thiab lwm yam. Ntawm cov tsheb thauj khoom, U-bolts yog siv los tswj lub tsheb qhov chaw thiab thav duab. Piv txwv li, lub caij nplooj ntoos hlav nplooj txuas nrog U-puab bolts.
Kev xaiv qib bolt.
Feem ntau cov qib bolt muab faib ua ob hom: cov bolts muaj zog heev thiab cov bolts ib txwm muaj. Thaum xaiv cov qib bolt, nws yuav tsum tau xav txog raws li qhov chaw siv, cov yam ntxwv ntawm lub zog, cov khoom siv raw thiab lwm yam.
1. Los ntawm qhov pom ntawm cov khoom siv raw: cov ntsia hlau muaj zog siab yog ua los ntawm cov khoom siv muaj zog siab, xws li 45 # hlau, 40 boron hlau, 20 manganese titanium boron hlau. Cov ntsia hlau ib txwm feem ntau yog ua los ntawm Q235 hlau.
ob.. Hais txog qib zog, cov bolts muaj zog siab feem ntau yog 8.8s thiab 10.9s, uas 10.9S yog qhov siv dav tshaj plaws. Cov qib zog ntawm cov bolts ib txwm yog 4.4, 4.8, 5.6 thiab 8.8.
3. Los ntawm qhov pom ntawm cov yam ntxwv kho tshuab: cov ntsia hlau muaj zog siab siv kev nruj ua ntej thiab hloov lub zog sab nraud los ntawm kev sib txhuam. Ntawm qhov tod tes, qhov kev sib txuas ntawm cov ntsia hlau ib txwm nyob ntawm qhov kev tiv thaiv shear ntawm cov pas nrig ntsia hlau thiab lub siab ntawm phab ntsa qhov kom hloov lub zog shear, thiab qhov kev nruj ua ntej me me thaum zawm lub txiv ntoo. Yog li ntawd, cov yam ntxwv kho tshuab yuav tsum tau xav txog hauv daim ntawv thov.
4. Los ntawm qhov pom ntawm kev siv: qhov kev sib txuas ntawm cov khoom tseem ceeb ntawm lub tsev feem ntau yog txuas nrog cov ntsia hlau muaj zog. Cov ntsia hlau ib txwm tuaj yeem siv dua, thaum cov ntsia hlau muaj zog tsis tuaj yeem siv dua thiab feem ntau yog siv rau kev sib txuas mus tas li.
Hauv ib lo lus, thaum xaiv cov lus qhia thiab qib bolt ntawm U-puab bolt, peb yuav tsum xav txog cov khoom siv, qib zog thiab cov yam ntxwv ntawm lub bolt raws li qhov xav tau tiag tiag thiab siv ib puag ncig, thiab xaiv cov khoom tsim nyog kom ua tiav cov txiaj ntsig ntawm kev nyab xeeb, kev ruaj khov thiab kev ntseeg siab.