** 1. Yog en8 ib tug siab carbon hlau? **
Tsis yog, En8 tsis suav hais tias yog cov pa roj carbon ntau. Nws tau cais raws li cov pa roj carbon steel. Nws cov ntsiab lus carbon cov ntsiab lus feem ntau yog li 0.44% rau 0.44%, uas muab nws ua kom muaj zog, ua rau nws tsis kam, muab nws khov kho nyob rau hauv cov khoom siv roj carbon monoxide. Cov pa roj carbon ntau feem ntau muaj cov ntsiab lus carbon saum 0.60%.
** 2. C45 carbon hlau sib npaug dab tsi? **
C45 carbon hlau yog ncaj sib npaug rau AISI 1045 hlau hauv Asmeskas tus qauv. Nws kuj tseem zoo heev rau cov qauv Askiv laus dua E8, txawm tias EN8 muaj cov carbon me ntsis cov pa roj carbon ntau. Nyob rau hauv ISO tus qauv, nws yog lub npe hu ua C45E4. Cov qib no txhua tus muaj cov ntsiab lus nominal carbon cov ntsiab lus ntawm 0.45% thiab qhia kom haum rau cov ntawv thov kom muaj zog thiab hnav tsis kam.
** 3. Uas yog qhov zoo dua, en8 lossis ms? **
"Zoo dua" nyob ntawm txhua daim ntawv thov.
* ** EN8 (Nruab Nrab Carbon Steel) ** yog qhov zoo dua rau cov ntawv thov kom muaj zog, hardness, thiab hnav tsis kam. Nws yog siv rau cov shaft, zog, bolts, thiab cov khoom siv ntxhov siab. Txawm li cas los xij, nws nyuaj rau kev siv lub tshuab thiab weld tshaj ms.
* ** MS (Me hlau tsis muaj me nyuam- Cov roj av qis, thiab cov ntawv tso tawm uas muaj txiaj ntsig zoo thiab kev tsim txiaj zoo nkauj yog qhov tseem ceeb. Nws yog softer, ntau ducile, thiab tsawg dua tab sis tsis muaj zog thiab hardness ntawm en8.
** 4. Dab tsi ua en8 sawv rau? **
En8 yog kev tsim qauv los ntawm British cov qauv BS 970, qhov twg "en" sawv "engineering hlau". Tus lej "8" tsim cov qhab nia tshwj xeeb hauv cov qauv ntawd nrog cov tshuaj txhais tau cov tshuaj thiab cov kws kho mob. Nws muaj kev lom zem ntau ntawm cov EN 10083-2 tus qauv, qhov twg nws yog tam sim no feem ntau hu ua 080m40 (C40E).
** 5. Yog ms thiab carbon hlau tib yam? **
Tsis yog, lawv tsis zoo ib yam. Qhov no yog ib qho tshwm sim ntawm kev tsis meej pem. "Carbon Steel" yog qhov dav qeb uas suav nrog tag nrho cov hlau uas cov khoom siv loj yog carbon. Nws tau muab faib ua peb pawg tseem ceeb:
* ** Cov roj carbon tsawg (hlau me - ms): ** muaj txog ~ 0.25% carbon. Nws yog mos, ductile, thiab yooj yim tsim thiab welded.
* ** Nruab nrab cov pa roj carbon steel (piv txwv li, en8, c45): ** muaj ~ 0.25% rau 0.60% carbon. Nws muaj zog dua thiab nyuaj tshaj li MS tab sis tsawg dua ductile.
* ** High carbon hlau: ** muaj ntau tshaj ~ 0.60% carbon. Nws yog qhov nyuaj heev thiab hnav - tiv taus tab sis kuj nkig.
Yog li, hlau me (MS) yog qhov tshwj xeeb * ntawm cov hlau steel, poob rau hauv cov carbon qis {}} qeb.
