Carbon Tool Steel
Cov qib steel yog prefixed nrog "T" kom tsis txhob muaj kev ntxhov siab nrog lwm hom hlau.
Tus lej hauv qib steel qhia txog cov ntsiab lus ntawm cov pa roj carbon monoxide, qhia tias yog ib feem ntawm ib txhiab ntawm cov ntsiab lus tsis sib xws. Piv txwv li, "T8" sawv cev rau cov ntsiab lus tsis sib xws ntawm 0.8%.
Rau cov hlau uas muaj cov ntsiab lus ntau dua manganese, "Mn" yog cim ntawm qhov kawg ntawm qib steel, xws li "T8Mn".
Cov cuab yeej zoo carbon steel muaj cov phosphorus thiab sulfur qis dua li cov pa roj carbon zoo li niaj zaus. Txhawm rau paub qhov txawv, tsab ntawv "A" yog ntxiv rau qhov kawg ntawm qib steel, piv txwv li, "T8MnA".
Carbon steel qauv
Nws yog tsim los ntawm "Q" + tus lej + cim qib zoo + deoxidization qauv cim. Lub "Q" ua ntej sawv cev rau qhov taw tes tawm ntawm cov hlau, thiab tus lej tom ntej qhia tus nqi taw tes ntawm MPa. Piv txwv li, Q235 sawv cev rau carbon structural steel nrog cov ntsiab lus tawm los (σs) ntawm 235 MPa.
Thaum tsim nyog, cov cim qhia txog qib zoo thiab deoxidization txoj kev tuaj yeem raug cim tom qab qib steel. Cov cim qib zoo yog A, B, C, D. Cov cim deoxidization yog F rau rimming steel, B rau semi-tua steel, Z rau cov hlau tua, thiab TZ rau cov hlau tshwj xeeb tua. Cov hlau tua tsis tuaj yeem raug cim nrog lub cim, txhais tau tias ZT thiab TZ tuaj yeem raug tshem tawm. Piv txwv li, Q235-AF sawv cev rau qib A rimming steel.
Rau cov pa roj carbon steel tshwj xeeb, xws li choj hlau thiab nkoj hlau, feem ntau siv cov qauv ntawm cov pa roj carbon monoxide steel, nrog rau cov ntawv ntxiv uas qhia txog kev npaj siv ntxiv rau qhov kawg ntawm qib steel.
High-Quality Carbon Structural Steel
Thawj ob tus lej ntawm qib steel qhia txog cov ntsiab lus ntawm cov pa roj carbon monoxide, qhia tias yog ib feem ntawm kaum txhiab ntawm cov ntsiab lus tsis sib xws. Piv txwv li, steel nrog cov ntsiab lus tsis sib xws ntawm 0.45% muaj qib steel ntawm "45", uas tsis yog tus lej sib txuas thiab yuav tsum tsis txhob nyeem raws li "Qib 45" steel.
Rau cov khoom siv zoo carbon steel nrog cov ntsiab lus manganese ntau dua, cov ntsiab lus manganese yuav tsum tau qhia, xws li 50Mn.
Rimming steel, semi-tua steel, thiab tshwj xeeb-lub hom phiaj high-zoo carbon structural steel yuav tsum tau tshwj xeeb cim nyob rau hauv lub kawg ntawm qib steel. Piv txwv li, semi-tua steel nrog cov pa roj carbon zoo ib yam ntawm 0.1% muaj qib steel ntawm 10b.
