Ferro Silicon 72 (FeSi 72)yog ib qho tseem ceeb nruab nrab -qib silicon alloy tshwj xeeb uas tsim los rau kev siv hlau dav dav thiab cov khoom siv hauv tsev. Zaum ntawm qis-qib ferrosilicon thiab siab-purityFerroSilicon (FeSi 75), FeSi 72% muab qhov sib npaug zoo tshaj plaws ntawm kev txhim khu kev qha metallurgical kev ua tau zoo, tus nqi ruaj khov, thiab qis melting volatility. Nws zam tus nqi siab ntawm FeSi 75% thiab kev tswj tsis ruaj tsis khov ntawm qib qis -FeSi, ua rau nws tus nqi tshaj plaws -kev daws teeb meem zoo rau kev tsim cov pa roj carbon ntau, cov qauv qis- alloy steel, grey cam khwb cia hlau, thiab cov hlau ductile.
Basic Specification & Core Functions ntawm FeSi 72
Tsim nyog muaj FerroSilicon 72 nruj me ntsis raws li thoob ntiaj teb thiab Suav teb cov qauv (GB/T 2272-2017), nrog rau cov tshuaj ruaj ruaj muaj pes tsawg leeg thiab tsis muaj teeb meem impurities los xyuas kom meej smelting tshwm sim nyob rau hauv sib txawv batch. Nws cov core technical parameter yog raws li nram no:
Silicon cov ntsiab lus:72%–74%
Tsawg impurities:S Tsawg dua lossis sib npaug li 0.04%, P Tsawg dua lossis sib npaug li 0.04%
Stable rov qab tus nqi:82%–86% nyob rau hauv ib txwm smelting tej yam kev mob
Ua tsaug rau nws cov ntsiab lus silicon ruaj khov thiab ultra- tsis tshua muaj leej faj thiab phosphorus impurities, FeSi 72# ua peb txoj haujlwm tseem ceeb hauv steelmaking thiab foundry ntau lawm, daws cov ntsiab lus mob ntau lawm xws li deoxidation tsis txaus, tsis muaj zog txhua yam khoom, thiab casting defects:
Thawj deoxidizer:Ua haujlwm zoo tshem tawm cov pa oxygen los ntawm cov hlau molten thiab cov hlau molten, inhibits qhov tsim ntawm oxide inclusions, txhim kho hlau compactness, thiab txo cov porosity thiab tawg tsis xws luag nyob rau hauv cov khoom tiav.
Basic alloying tus neeg sawv cev:Silicon cov ntsiab lus yaj mus rau hauv cov hlau matrix los tsim cov kev daws teeb meem ntxiv dag zog, txhim kho lub zog tensile, hardness, hnav tsis kam thiab cov qauv kev ruaj ntseg ntawm carbon steel thiab qis- alloy steel.
Lub hauv paus inoculant:Ua raws li graphite nucleating tus neeg sawv cev zoo hauv kev tsim cov hlau cam khwb cia. Nws txhawb kev sib txuam thiab nplua graphite nag lossis daus, tshem tawm cov graphite undercooled, txhim kho molten hlau fluidity, thiab txo cov kab noj hniav shrinkage, porosity thiab txias kaw tsis xws luag hauv castings.
Kev siv kom raug hauv Steelmaking
72% FeSi yog siv dav hauv kev smelting ntawm cov pa roj carbon zoo tib yam, lub tsev steel hlau, me me steel thiab dav dav - alloy steel. Tsis zoo li siab -purity FeSi 75 siv rau siab -kawg caij nplooj ntoos hlav steel thiab precision alloy steel, Ferro silicon 72 yog qhov tsim nyog rau loj - nplai cov pa steel ntau lawm. Cov txheej txheem ntxiv cov txheej txheem yog qhov tseem ceeb los tswj kom ruaj khov silicon rov qab tus nqi thiab zoo ib yam steel muaj pes tsawg leeg.
Ntxiv sijhawm
FeSi 72 yuav tsum tau ntxiv rau tom qab theem ntawm steelmaking. Cov neeg ua haujlwm yuav tsum ua kom tiav oxidation slag tshem tawm ua ntej, tom qab ntawd ntxiv FeSi 72 thaum lub sij hawm molten steel tapping lossis LF ladle refining. Ntxiv FeSi72 nyob rau hauv lub sij hawm oxidation thaum ntxov yuav ua rau silicon oxidation hnyav thiab hlawv, txo tus nqi rov qab thiab ua rau tsis txaus deoxidation.
Pom zoo noj
- Ordinary carbon steel: 3-5 kg ib tuj ntawm molten steel
- Tsawg- alloy structural steel: 5-7 kg ib tuj ntawm molten steel
Cov lus qhia ua haujlwm
- Tshaj tawm FeSi72% sib npaug rau hauv cov hlau molten kom ua kom nrawm nrawm thiab tsis sib xws, zam qhov sib txawv ntawm silicon hauv zos.
- Stabilize molten steel kub ntawm 1540-1590℃. Tsis tshua muaj kub ua rau tsis tiav melting, thaum kub siab heev accelerates silicon burning poob.
- nruj me ntsis tswj tag nrho cov nyiaj ntxiv. Silicon residue ntau dhau yuav ua rau cov hlau brittleness, txo cov kev cuam tshuam toughness, thiab cuam tshuam rau tom qab dov thiab forging kev ua tau zoo.
Txoj kev thov hauv Foundry
Hauv kev lag luam hauv kev lag luam, FeSi 72 ua haujlwm raws li tus nqi - siv tau zoo inoculant thiab nucleating tus neeg sawv cev, feem ntau yog siv rau grey cam khwb cia hlau, zoo tib yam hlau ductile, thiab cov khoom siv casting qhov chaw nrog cov pa ua tau zoo. Nws yog feem ntau siv ferrosilicon inoculant rau loj casting ntau lawm.
- Inoculation ntxiv tus qauv:Ntxiv 0.2% -0.4% ntawm cov hlau molten tag nrho qhov hnyav thaum lub sij hawm ladle pouring los yog kwj inoculation kom ua tiav qhov zoo tshaj plaws graphite refinement nyhuv.
- Cov teebmeem kev txhim kho tseem ceeb:Refines cam khwb cia hlau grain qauv, tshem tawm coarse graphite, ho txhim kho casting nto smoothness, thiab zoo daws cov teeb meem xws li porosity, shrinkage kab noj hniav thiab txias kaw.
- Tus nqi zoo:Piv nrog rau qib siab -qib FeSi 75, FeSi 72 tau qis dua nqi tsev thiab kev ua haujlwm ruaj khov, pab cov foundries txo cov nqi raw khoom thaum tswj kev tsim nyog casting zoo, zoo tagnrho rau cov txheej txheem ntau lawm.
Kev Qhia Txog Qhov Loj
FerroSilicon 72% loj ncaj qha cuam tshuam rau melting ceev, silicon rov qab tus nqi thiab smelting stability. Xaiv qhov loj me raws li lub tshuab hluav taws xob thiab cov txheej txheem tuaj yeem txo cov khoom pov tseg thiab txhim kho kev tsim khoom:
- 10–50mm loj hais:Haum rau loj - muaj peev xwm induction rauv thiab ladle tapping deoxidation, nrog qeeb yaj thiab ntev - cov nyhuv deoxidation kav ntev.
- 3–15mm hmoov zoo:Haum rau nruab nrab thiab me rauv thiab kwj inoculation txheej txheem, featuring ceev melting thiab sib tov sib xyaw kom meej muaj pes tsawg leeg tswj.
Ferro Silicon 72 yog tus nqi - siv tau zoo thiab siv tau zoo heev rau cov khoom siv hlau ua rau cov pa steelmaking thiab foundry industries. Nrog nws cov chemical index ruaj khov, cov ntsiab lus tsis muaj impurity thiab hloov tau yooj yim, nws tuaj yeem ua tau raws li cov kev xav tau ntawm cov pa roj carbon steel, qis- alloy steel thiab cov hlau cam khwb cia zoo tib yam. Los ntawm kev siv cov txheej txheem ntxiv sijhawm, kev tswj xyuas kev siv tshuaj, qhov loj me thiab kev tswj hwm kev tswj hwm tus qauv, cov tuam txhab tuaj yeem tswj xyuas cov nqi silicon ruaj khov, txo cov khoom tsis xws luag, thiab tswj cov nqi ntau lawm. Rau feem ntau steel mills thiab foundries uas sib npaug zoo thiab tus nqi, FeSi 72 yog qhov kev ntseeg siab tshaj plaws txhua hnub - siv silicon alloy xaiv.
