Ferrosilicon - Puas yog ib qho alloy uas cov khoom tseem ceeb yog silicon (Si) thiab nws muaj pes tsawg leeg sib txawv raws li daim ntawv thov thiab cov qauv kev tsim khoom. Hauv qab no yog cov ncauj lus kom ntxaws ntawm cov muaj pes tsawg ntawm ferrosilicon:
1. Lub ntsiab
Silicon (si):
Cov ntsiab lus ntau: feem ntau45% ~ 90%, lub ntsiab ntawm ferrosilicon.
Lub luag haujlwm: Silicon yog tus neeg sawv cev ntawm lub cev muaj zog uas tau txhim kho cov xim ntawm Molten hlau thiab nce cov khoom lag luam corrosion thiab ntau cov khoom siv ntawm alloy.
Hom Hom:
Fesi75: Silicon cov ntsiab lus72% ~ 80%(feem ntau siv)
Fesi65: Silicon cov ntsiab lus65% ~ 72%
Fesi45: Silicon cov ntsiab lus40% ~ 47%.
Hlau (FE):
cov ntsiab lus ntau: los ntawm10% rau 50%, ua raws li tus cab kuj rau silicon thiab pab cov almoy daim ntawv ruaj khov metallic.
2. Cov khoom siv me (cov khoom tawg)
Ferrosilicon feem ntau muaj cov nyiaj me me ntawm lwm cov khoom, feem ntau yog los ntawm cov khoom nyoos lossis los ntawm cov txheej txheem smelting. Cov ntsiab lus tshwj xeeb yog txwv rau cov txheej txheem ntau lawm thiab cov qauv:
Aluminium (AL):
Cov ntsiab lus: feem ntaulos ntawm 0.5 txog 3%, ib qho me me ntawm txhuas tuaj yeem txhim kho cov alloy lub peev xwm deoxidation, tab sis ntau dhau yuav cuam tshuam kev huv ntawm cov hlau.
Calcium (ca):
Cov ntsiab lus: Feem ntau tsawg dua lossis sib npaug rau 1%,Yuav txhawb kev graphitization thaum lub sij hawm ua casting, tab sis yuav tsum tau tswj kom tsis txhob muaj kev sib txawv hauv kev ua tau zoo.
Carbon (c):
Cov ntsiab lus: tsawg dua lossis sib npaug 0.2%(Tej zaum yuav yog ib nyuag qib hauv cov qib qis (cov ntsiab lus cariilicon cuam tshuam rau kev siv ntawm kev ntxiv steelmaking (piv txwv li kev pheej hmoo ntawm carbon ntxiv).
Phosphorus (p) thiab Sulphur (s):
Cov ntsiab lus: nruj me ntsis (E.G.P tsawg dua lossis sib npaug rau 0.04%, s tsawg dua lossis sib npaug rau 0.02%), cov ntsiab lus no yuav txwv cov khoom siv hauv cov hlau.
Lwm Ntsiab Lus: Xws li manganese (mn), titanium (ti), thiab lwm yam, cov ntsiab lus feem ntau yog tsawg heev, nyob ntawm lub purity ntawm raw khoom.
3. Cov nyhuv ntawm kev sib xyaw ntawm cov khoom
Qhov ntau dua cov ntsiab lus silicon:
Txo cov ntsiab lus (piv txwv, lub ntsiab lus melting ntawm FESI75 yog li 1200 degree, cov qhab nia qis tau ncav cuag 1400 degree).
Muaj peev xwm ntxiv rau deoxidize, tab sis muaj cov hmoov tsis zoo thiab nyuaj ua kev ua tiav.
Cov Kws Koom Tes Tswj:
Cov ntsiab lus ntawm cov ntsiab xws li txhuas thiab calcium yuav tsum tau hloov kho raws li daim ntawv thov. Piv txwv li, casting ferrosilicon raug tso cai kom muaj me ntsis aluminium los txhawb kev teeb meem.
Cov ntsiab lus ntawm carbon, phosphorus thiab leej faj yuav tsum yog txwv nruj me ntsis kom tsis txhob muaj kev phem rau cov khoom lag luam tsis zoo rau cov khoom lag luam (piv txwv li cov hlau tshwj xeeb).
4. Kev sib xyaw ua ke hauv International txheej txheem
Cov teb chaws txawv muaj cov qauv nruj rau cov muaj kev sib xyaw ntawm ferrosilicon. Piv txwv li:
Tuam Tshoj (GB / T 2272):
Yuav tsum muaj rau Fesi75: Si tshaj lossis muaj sib npaug rau 72%, tsawg dua lossis sib npaug lossis sib npaug lossis sib npaug lossis sib npaug rau 0.02%.
USA (ASTM A100):
Cov qhab nia zoo sib xws (piv txwv, Fesi75) muaj qhov ntau ntawm cov kev tso cai nyob rau Si cov ntsiab lus hauv Si cov ntsiab lus hauv Si cov ntsiab lus hauv Si cov ntsiab lus (piv txwv li, 74% -80%).
5. Kev hloov kho ntawm ferrosilicon muaj pes tsawg leeg rau cov hom phiaj tshwj xeeb
Ferrosilicon rau casting: yuav muaj1-3% aluminiumTxhawm rau txhawb cov dej nag los ntawm graphite hauv cov hlau cam khwb cia.
Magnesium Hlau Reducer (Pidgeon Txheej Txheem): Ferrosilicon yuav tsum tau txhim kho kom rov ua tau zooNrog cov ntsiab lus siab silicon (ntau dua los yog sib npaug rau 75% SI) thiab cov ntsiab lus tsawg dua lossis sib npaug nrog 0.5%)Cov.
6. Cov Qauv Kev Tshawb Fawb ntawm Kev Tshawb Xyuas
Tshuaj Lom: Cov hau kev ntub dej los yog cov qauv siv hluav taws xob yog siv los txiav txim siab cov ntsiab lus ntawm silicon, hlau thiab lwm yam.
X-Tshav Fluorescence (XRF): Ntes ntes cov khoom tseem ceeb.