Daim Ntawv Thov Txhua Hnub Thiab Kev Ua Haujlwm Qib Ntawm Bolts

Bolts, screwsthiab fasteners yog cov ntsiab lus siv hauv kev lag luam. Ntawm lawv, bolts yog nyob rau hauv qeb ntawm fasteners. Raws li lub cev thiab txhua yam hauv paus ntsiab lus ntawm inclined dav hlau rotation thiab kev sib txhuam, bolts fasten thiab txoj hauj lwm Cheebtsam, ua hauj lwm raws li qhov tseem ceeb tshaj plaws thiab tseem ceeb qhov chaw rau mechanical sib dhos.

Dav siv nyob rau hauv lub neej txhua hnub thiab ntau yam kev lag luam, bolts yog hu ua "kev lag luam mov". Lawv daim ntawv thov scenarios npog cov khoom siv hluav taws xob, cov khoom siv digital, cov khoom siv hluav taws xob, tshuab, nkoj, tsheb, hydraulic engineering thiab cov chaw siv tshuaj. Cov xwm txheej sib txawv tau txais cov bolts nrog cov lus qhia tshwj xeeb thiab qib siab. Precision micro bolts yog siv rau cov khoom siv me me xws li cov khoom siv digital, koob yees duab, tsom iav thiab saib. Standard bolts zoo tib yam yog siv rau hauv cov khoom siv hauv tsev, cov twj paj nruag thiab cov rooj tog zaum. Cov bolts loj loj yog siv dav hauv kev tsim kho, steel qauv thiab txuas hniav. Cov khoom siv thauj mus los nrog rau dav hlau, tsheb ciav hlau thauj mus los thiab tsheb tau txais cov ntsia hlau teeb ntawm ntau qhov ntau thiab tsawg. Bolts ua lub luag haujlwm tseem ceeb uas tsis tuaj yeem hloov pauv hauv txhua qhov xwm txheej hauv kev lag luam.

1. Kev faib tawm ntawm Bolt Performance Grade

Cov qib kev ua tau zoo rau cov qauv thiab kev lag luam bolts suav nrog 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9 thiab 12.9. Bolts ntawm qib 8.8 thiab siab dua yog txhais raws limuaj zog bolts,uas yog ua los ntawm high-zoo carbon steel los yog alloy steel thiab undergo quenching thiab tempering tshav kub kev kho mob los txhim kho txhua yam khoom. Bolts qis dua qib 8.8 yog cov bolts zoo tib yam uas feem ntau yuav tsum tsis muaj kev kho cua sov.

Bolt cov qhab nia ua tau raws li tus qauv thoob ntiaj teb "XY" kev kos npe. Ob pawg ntawm cov duab sawv cev rau lub nominal tensile lub zog thiab yield piv raws li, ua kom muaj tseeb xam ntawm mechanical parameters. Bolts ntawm tib qib tswj cov khoom zoo ib yam tsis hais cov khoom siv lossis cov hauv paus chiv keeb, kom ntseeg tau tias kev hloov pauv thoob ntiaj teb.

Tus lej lej lej

1. Nominal tensile zog=X × 100 (MPa)

2. Yield ratio=Y ÷ 10

3. Nominal yield zog=X × 100 × (Y ÷ 10) (MPa)

2. Cov ncauj lus kom ntxaws ntawm Cov Qib Bolt Feem ntau

Qib 4.8 Bolt

Nominal tensile zog: 400 MPa

Qhov ratio: 0.8

Nominal yield zog: 320 MPa

Qib 8.8 Bolt

Nominal tensile zog: 800 MPa

Qhov ratio: 0.8

Nominal yield zog: 640 MPa

Qib 10.9 High-Strength Bolt

Nominal tensile zog: 1000 MPa

Qhov ratio: 0.9

Nominal yield zog: 900 MPa

Lub shear tsis kam ntawm bolts nce synchronously nrog cov qib kev ua tau zoo. Qib 8.8 thiab 10.9 yog cov qib siab siv ntau tshaj plaws rau cov qauv hlau thiab cov cuab yeej siv tshuab. Qib lub zog ntawm lub ntsia liaj qhov rooj tsis tuaj yeem txiav txim siab tsuas yog los ntawm nws cov khoom thiab cov yam ntxwv tshwj xeeb. Kev txiav txim yuav tsum yog raws li qib qhab nia, txheej txheem kev kho cua sov thiab cov ntaub ntawv kuaj lub Hoobkas, nrog rau Qib 5.8 raws li qhov tsawg kawg nkaus txhim khu kev qha cov hom phiaj.