Boltyog ib qho kev sib txuas siv feem ntau, thiab nws cov kev qhia tshwj xeeb, qauv, thiab cov qauv kev sawv cev tseem ceeb heev. Cov kev sawv cev no tuaj yeem pab txiav txim siab cov khoom tseem ceeb xws li cov xwm txheej siv tau, lub zog, thiab cov khoom siv rau bolts. Cov nram qab no yog tsib qhov kev qhia tshwj xeeb thiab kev sawv cev rau bolts, txhua qhov tsim nyog rau cov xwm txheej sib txawv.
Ua ntej, kev sawv cev txoj kab uas hla yog ib txoj kev siv feem ntau ntawm kev sawv cev. Txoj kab uas hla ntawm lub bolt yog sawv cev los ntawm tsab ntawv D thiab ntsuas hauv millimeters. Piv txwv li, M8 sawv cev rau lub bolt nrog txoj kab uas hla ntawm 8 millimeters. Txoj kev no yog siv dav, tshwj xeeb tshaj yog thaum xaiv bolts ntawm qhov loj me.
Qhov thib ob, lub suab sawv cev txoj kev sawv cev rau tus nqi pub ib zaug ntawm cov xov. Lub suab yog sawv cev los ntawm tsab ntawv P thiab ntsuas hauv millimeters. Piv txwv li, M8x1.25 sawv cev rau lub bolt nrog txoj kab uas hla ntawm 8 millimeters thiab lub suab ntawm 1.25 millimeters. Txoj kev no muaj txiaj ntsig zoo rau cov xwm txheej tshwj xeeb ntawm bolts yuav tsum tau xaiv lossis siv rau cov qauv tsim tshwj xeeb.
Qhov thib peb txoj kev yog qhov ntev sawv cev. Qhov ntev ntawm lub ntsia liaj qhov rooj hais txog qhov ntev ntawm cov xov ntxiv rau qhov ntev ntawm qhov tsis threaded, sawv cev los ntawm tsab ntawv L thiab ntsuas hauv millimeters. Piv txwv li, M8x1.25x30 sawv cev rau antsia liaj qhov roojnrog ib txoj kab uas hla ntawm 8 millimeters, ib lub suab ntawm 1.25 millimeters, thiab ib tug ntev ntawm 30 millimeters. Txoj kev no yog tsim rau xaiv bolts ntawm qhov tsim nyog loj los ntawm cov khoom sib txawv thicknesses.
Qhov thib plaub txoj kev yog qhov kev siv theem sawv cev. Qib lub zog ntawm lub bolt yog hais txog nws lub peev xwm thauj khoom, sawv cev los ntawm tus lej. Piv txwv li, 8.8 sawv cev rau lub bolt nrog lub zog tensile ntawm 800 Newtons ib square millimeter thiab lub zog shear ntawm 560 Newtons ib square millimeter. Qhov kev sau no tseem ceeb heev thaum xaiv cov bolts, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas xav tau siab tensile thiab shear zog.
Thaum kawg, cov khoom sawv cev ntawm bolts kuj tseem ceeb heev. Cov khoom siv ntawm cov bolts feem ntau yog sawv cev los ntawm cov qauv cai, piv txwv li, 4.8 sawv cev rau cov hlau tsis tshua muaj, 8.8 sawv cev rau cov pa roj carbon nruab nrab, thiab 10.9 sawv cev rau cov hlau alloy. Txoj kev sawv cev no tseem muaj txiaj ntsig zoo thaum xaiv cov bolts rau cov kev thov tshwj xeeb thiab cov kev xav tau ntawm lub zog.
Cov saum toj no tsib specifications, qauv, thiab kev sawv cev txhua tus muaj lawv tus yam ntxwv thiab muaj feem xyuam. Thaum xaivbolts, kev saib xyuas yuav tsum tau them rau cov yam tseem ceeb, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov siab. Tom qab txiav txim siab txog qhov yuav tsum tau muaj thiab cov xwm txheej ntawm daim ntawv thov, nws yog ib qho tseem ceeb los xaiv cov bolts tsim nyog los xyuas kom meej lawv lub zog thiab ruaj khov.
