Cov khoom siv thiab kev ua tau zoo

Lub ferrule thiab lub ntsiab lus dov ntawm lub dov bearing raug ntau zaus raug rau qhov siab sib cuag thaum ua qhov sib cuag dov nrog kev swb. Lub retainer nyob rau hauv kev swb sib cuag nrog ib sab ntawm lub ferrule thiab lub ntsiab lus dov, lossis ib sab ntawm nws, thiab tau txais lub zog nruj thiab kev sib zog ntawm ib sab. Yog li ntawd, cov ntaub ntawv, kev ua tau zoo, thiab cov kev cai tseem ceeb rau lub bearing ferrule, lub ntsiab lus dov thiab lub tawb yog raws li nram no.

1. Kev ua tau zoo uas tau thov los ntawm cov ntaub ntawv ferrule thiab dov cov ntsiab lus: dov qaug zog lub zog, siab hardness, siab hnav tsis kam
2. Kev ua tau zoo uas tau thov los ntawm cov ntaub ntawv txij nkawm: kev ruaj khov zoo, lub zog siab
3. Ntxiv rau, nws yuav tsum tau ua tiav. Nyob ntawm daim ntawv thov, nws kuj tseem yuav tsum muaj kev tiv taus kev cuam tshuam zoo, tiv taus cua sov thiab tiv taus xeb.
4. Cov ntaub ntawv hais txog ferrules thiab cov khoom dov: ferrules thiab cov khoom dov feem ntau yog ua los ntawm cov hlau carbon chromium siab. Feem ntau ntawm cov bearings siv SUJ2 hauv JIS hlau. Cov bearings loj siv SUJ3.

Cov tshuaj lom neeg ntawm SUJ2 tau raug qauv ua cov khoom siv rau kev nqa khoom hauv ntau lub tebchaws thoob ntiaj teb. Piv txwv li, nws yog tib hom hlau li AISL52100 (Tebchaws USA), DIN100Cr6 (Lub Tebchaws Yelemees Sab Hnub Poob), BS535a99 (UK).
Ntxiv mus, thaum muaj kev cuam tshuam, chrome hlau, chrome molybdenum hlau, nickel chrome molybdenum hlau, thiab carbon hardening yog siv ua cov ntaub ntawv bearing kom cov hlau muaj ib txheej softening los ntawm qhov tsos mus rau qhov tob kom raug. Cov carburized bearing nrog qhov tob softening tsim nyog, cov qauv zoo, qhov nyuaj thiab qhov nyuaj ntawm lub plawv tsim nyog muaj kev cuam tshuam zoo heev piv rau cov bearing bearing hlau, thiab cov tshuaj lom neeg ntawm cov carburized bearing hlau. NSK tau siv lub tshuab nqus tsev degassing, yog li cov ntaub ntawv siv yog qhov huv siab, qis oxygen thiab zoo. Nyob rau hauv lem, ib qho kev daws teeb meem thermal tsim nyog tau coj los txhim kho lub neej dov qaug zog ntawm cov bearing.
Ntxiv rau cov qib hlau uas tau hais los saum toj no, cov hlau ceev ceev uas zoo heev rau kev tiv taus cua sov thiab cov hlau tsis xeb zoo heev rau kev tiv taus xeb raug siv nyob ntawm seb siv li cas.