Txheem Ferrosilicon Qib (los ntawm Silicon Cov Ntsiab Lus)
| Teem nqi | SI cov ntsiab lus (%) | FE cov ntsiab lus (%) | Key impurities | Thawj cov ntawv thov |
|---|---|---|---|---|
| Fesi 15 | 14–16% | ~80% | Siab c, al, p | CAST HLAU LAWM (Qis Nqi SI) |
| Fesi 45 | 43–47% | ~50% | Nruab Nrab Al, C | Steelmaking deoxidation, dav pom kev siv |
| Fesi 65 | 63–68% | ~30% | Qes al, c | Feem ntau rau steelmaking, mg ntau lawm |
| Fesi 75 | 72–78% | ~20% | Tsawg heev al, c | High-qib hlau, alloys tshwj xeeb |
| Fesi 90 | 87–95% | <10% | Ultra-qis impurities | Semiconductors, hnub ci silicon |
Tshwj xeeb ferrosilicon alloys
(1) ferrosilicon magnesium (Fesimg)
Kev sib xyaw: Fesi {+ 3}} - 10% mg, + ca, re (tsis tshua muaj ntiaj teb).
Lub Hom Phiaj: Siv rau hauv cov kav hlau cadile (nodular hlau cam khwb cia hlau) ntau lawm los chheroidize graphite.
Cov Qib:
Fesimg 3 (3-5% MG) - Basic Nodularizer.
Fesimg 7 (6-8% mg) - Kev kho mob siab.
Fesimgca (mg + calcium) - txo cov txheej txheej poob lawm.
(2) cov kev coj dawb huv siab
Si ntau dua los yog sib npaug rau 75%, ultra-tsawg al (<0.5%), C (<0.1%).
Siv nyob rau hauv: cov hlau hluav taws xob, hnub ci-qib-silicon, tshuaj lom neeg.
(3) ferrosilicon barium (Fesiba)
Muaj BA (4-12%) rau kev ua kom zoo nkauj deoxidation hauv cov hlau qib siab.
Txhim kho cov fundity thiab txo cov nozzle clogging hauv nrib pleb.
(4) ferrosilicon zirconium (FESKR)
Siv rau hauv tshav kub-resistant alloys thiab tshwj xeeb hlau txheej txheem.
Yuav Ua Li Cas Xaiv Qib
| Daim ntawv thov | Pom tias qib | Qho tseem ceeb |
|---|---|---|
| Steelmaking (deoxidation) | Fesi 65-75%% | Qhov Zoo Tshaj Si / Al Seem |
| Huab Cua Ntau Lawm | Fesimg 5-7% | Xyuas kom meej graphite nodulization |
| Stainless Hlau Alloying | Fesi 75% (QU C, AL) | Tiv thaiv impurity pickup |
| Magnesium Ntau Lawm | Fesi 65% (qis al) | Muaj kev txo qis mgo |
| Sicultonductors | Fesi 90% (Muaj Siab Purity Siab) | Tsawg Tsawg Tsawg |
Cov Qauv Tseem Ceeb rau Ferrosilicon qib
Txawv tebchaws sib txawv raws cov qauv tshwj xeeb rau kev faib tawm FESI:
Phiaj suav: GB / T 2272(piv txwv li, fesi 75- A, fesi 75- b).
Yu Laus teb: En iso 5445(piv txwv li, fesi45, fesi65).
Usa: ASTM A100(piv txwv li, qib A - 75% SI).
Teb chaws russia: GOST 1415(piv txwv li, FSI75, FSI65).
Piv txwv (GB / T 2272):
Fesi 75- a: Si tshaj lossis muaj sib npaug rau 75%, tsawg dua lossis sib npaug nrog 1.5%, C Tsawg dua lossis sib npaug. 2% (High-qib hlau).
Fesi 75- c: Si tshaj lossis muaj sib npaug rau 72%, tsawg dua lossis sib npaug ntawm 2%, C Tsawg dua lossis sib npaug}. 4% (dav hlau).
Cim npe nrov: Cov qib siab Ferrosilicon thiab lawv qhov sib txawv, Tuam Tshoj cov qib kawm thiab lawv cov tuam ntxhab sib txawv, chaw muag khoom, Hoobkas