Kev Taw Qhia Kom Paub Txog Bolt Performance Grade

Bolt kev ua tau zoo qib yog ib lub teb chaws tus qauv thoob ntiaj teb rau kev txheeb xyuas cov khoom siv tshuab ntawm bolt hlau. Cov qib sib piv ntawm cov metric high-strength bolts suav nrog Qib 4.8, Qib 8.8, Qib 10.9 thiab Qib 12.9. Ib qib kev ua tau zoo muaj ob pawg ntawm cov duab (xws li 8.8, 10.9 thiab 12.9). Hauv cov ntsiab lus kev tshaj lij, thawj daim duab sawv cev rau feem pua ​​​​ntawm tus nqi ntawm lub bolt lub nominal tensile lub zog, thaum lub thib ob daim duab sawv cev rau cov yield ratio (qhov piv ntawm yield zog rau tensile zog), es tsis ncaj qha qhia lub yield zog.

Cov hauv qab no qhia tau hais tias tus txheej txheem mechanical parameters thiab daim ntawv thov scenarios ntawm cov qhab nia zoo sib xws:

1. Qib 4.8 Bolt:Nws muaj qhov tsawg kawg nkaus tensile lub zog ntawm 400N / mm² thiab qhov tsawg kawg nkaus yield zog ntawm 320N / mm². Ua los ntawm cov pa roj carbon zoo tib yam uas tsis tshua muaj hlau, cov ntsia liaj qhov rooj no nta zoo toughness thiab tus nqi qis. Nws yog qhov tsim nyog rau kev sib txuas cov xwm txheej uas tsis tshua muaj kev ntxhov siab, tsis muaj kev vibration thiab tsis muaj qhov hnyav, thiab yog siv dav hauv cov khoom siv kho vajtse, cov cuab yeej siv pej xeem thiab lub teeb sib dhos.

2. Qib 8.8 Bolt:Nws muaj lub zog tensile yam tsawg kawg nkaus ntawm 800N / mm² thiab lub zog tsawg kawg nkaus ntawm 640N / mm². Raws li qhov nruab nrab thiabsiab zog boltkho los ntawm quenching thiab tempering tshav kub kev kho mob, nws muab cov khoom zoo txhua yam. Nws yog feem ntau siv bolt qib nyob rau hauv kev lag luam, muaj feem xyuam rau kev sib txuas ntawm ntau yam khoom siv kho tshuab, lub tsev tsim thiab cov pa engineering machinery.

3. Qib 10.9 Bolt: Nws muaj lub zog tensile yam tsawg kawg nkaus ntawm 1000N / mm² thiab lub zog tsawg kawg nkaus ntawm 900N / mm². Qhov no yog lub zog muaj zog bolt tiav nrog nruj quenching thiab tempering kev kho mob, featuring siab bearing peev thiab zoo qaug zog. Nws yog tsuas yog siv rau qhov tseem ceeb load-bearing sib txuas ntawm cov tshuab loj, txuas hniav, steel qauv tej yaam num thiab cov khoom tseem ceeb.

4. Qib 12.9 Bolt: Nws muaj lub zog tensile yam tsawg kawg nkaus ntawm 1200N / mm² thiab lub zog tsawg kawg nkaus ntawm 1080N / mm². Nws yog lub siab tshaj plaws pa zog qib ntawm bolts nyob rau hauv kev ua lag luam. Nrog rau cov khoom zoo thiab siab precision, nws boasts muaj zog tiv thaiv kev kub siab thiab cuam tshuam. Nws yog tsim rau hnyav ua hauj lwm tej yam kev mob xws li kev kub siab, hnyav load, high-strength vibration, precision machinery thiab high-end industrial khoom.

Cov Lus Cim Xaiv: Thaum xaivntsia liaj qhov roojcov qib kev ua tau zoo, nws tsis txaus tsuas yog xa mus rau lub zog tensile thiab lub zog tawm los. Nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xav txog qhov nruj torque, qaug zog ua haujlwm, hnav tsis kam, corrosion kuj, kev ua haujlwm kub thiab kev co. Ib puag ncig kev pabcuam sib txawv, cov xwm txheej thauj khoom thiab cov txheej txheem tseem ceeb yuav tsum muaj cov qhab nia sib npaug. Kev xaiv yuav tsum nruj me ntsis raws li kev ua haujlwm tiag tiag kom ntseeg tau tias muaj kev nyab xeeb thiab ruaj khov ntawm cov qauv kev sib txuas.