Ferro silicon 72 zaum hauv nruab nrab ntawm cov qauv qib ntau thiab raug xaiv thaum tus kws tsim khoom hlau xav tau cov khoom siv silicon ntxiv ntawm tus nqi qis dua FeSi75 thaum khaws cov phosphorus thiab sulfur tsawg. Ua kom nws tsis tu ncua txhais tau tias tswj peb yam ntawm ib zaug: qhov purity ntawm cov khoom siv raw, qhov sib npaug ntawm cov cua sov ntawm lub qhov cub submerged arc, thiab qhov loj ntawm cov cam khwb cia.
Cov khoom siv raw xaiv teeb lub qab nthab ntawm qhov zoo
Ferro silicon yog tsim los ntawm kev txo silica nrog carbon nyob rau hauv lub submerged arc rauv, yog li cov khoom zoo yog bounded los ntawm dab tsi mus rau hauv lub nra.
Silica qhov chaw:quartzite los yog silica xuab zeb nrog cov ntsiab lus siab ntawm silicon dioxide thiab qis alumina thiab hlau -cov khoom muaj nqis, tshuaj xyuas rau lub cub tawg qhov loj me kom cov roj ntws los ntawm cov nqi tseem nyob.
Tus neeg sawv cev txo qis:metallurgical coke, los yog coke thiab charcoal blend, xaiv rau cov pa roj carbon ntau ruaj khov, tsis muaj tshauv thiab ua kom muaj kev sib haum xeeb. Tshauv nqa cov alumina thiab phosphorus, yog li tus reductant nrog cov ntsiab lus sib txawv ntawm cov hmoov tshauv qhia ncaj qha raws li kev tawm ntawm - cov cua sov tshwj xeeb.
Iron unit:zeb nplai, hlau ore lossis hlau tig, siv los teeb tsa cov silicon rau hlau piv hauv tus nqi. Qhov sib ntxiv ntawm cov hlau yog qhov tseem ceeb rau kev txav ntawm FeSi75, FeSi72 thiab qib qis.
Electrode paste thiab fluxing ntxiv:tswj cov sulfur yog li cov khoom tsis tuaj yeem khaws cov khoom tsis zoo ntawm cov kab hluav taws xob.
Txhua yam khoom siv tau raug soj ntsuam ua ntej them nqi, thiab cov kev ntsuas lub nra ua ke ua ke cov kev ntsuam xyuas nrog rau kev kwv yees silicon rov qab yog li lub tshuab hluav taws xob tau them tus nqi tsim los tsaws rau hauv lub qhov rais qib es tsis yog ib qho kho tom qab tapping.
Smelting hauv Submerged Arc Rauv
Lub qhov cub ua haujlwm tsis tu ncua nrog cov nqi tsim nyob ib puag ncig peb tus kheej - ci electrodes thiab thaj chaw tshuaj tiv thaiv tsim hauv qab ntawm qhov chaw them nqi. Silica yog txo los ntawm carbon rau silicon, uas ua ke nrog hlau los muab cov kua ferrosilicon uas sau ntawm lub hearth thiab yog tapped ntawm lub sij hawm.
Lub luag haujlwm tseem ceeb ntawm kev ua haujlwm yog txoj haujlwm electrode, lub zog tawm tswv yim, tus nqi sib xyaw thiab kais - qhov xwm txheej. Tuav lub nra ruaj khov ua rau thaj tsam cov tshuaj tiv thaiv ntawm qhov tob tob; thawb lub hwj chim yam tsis sib piv cov nqi sib xyaw ua rau cov khoom siv silicon poob rau hauv qhov tawm - roj, thaum khiav txias dhau los tsis muaj quartzite nyob rau hauv qhov cub thiab ua rau cov nplaum nplaum uas nyuaj rau kais. Alloy muaj pes tsawg leeg yog saib xyuas thaum lub tshav kub tseem tab tom ua, yog li thaum silicon tiam sis hauv qab FeSi72 lub hom phiaj cov hlau ntxiv lossis txo tus nqi tuaj yeem txiav. Qhov ntawd nyob rau hauv - kev kho cov txheej txheem cais cov nroj tsuag uas tsim FeSi72 ib txwm ua los ntawm ib qho uas tsim cov khoom sib txawv thiab txheeb nws tom qab.
Standard Composition txwv rau FeSi72 thiab Cov Qib Neighboring
Cov lus teev cov kev txwv tsis pub siv rau FeSi72 ua ke nrog cov qib tam sim ntawd nyob ib ncig ntawm nws, qhia tias qhov muaj txiaj ntsig tshaj plaws tshwj tsis yog silicon.
| Qib | Si Ntau dua lossis sib npaug rau % | Al Tsawg dua lossis sib npaug li % | Ca Tsawg dua lossis sib npaug li % | Mn Tsawg dua lossis sib npaug rau % | Cr Tsawg dua lossis sib npaug li % | P Tsawg dua lossis sib npaug li % | S Tsawg dua lossis sib npaug li % | C Tsawg dua lossis sib npaug li % |
|---|---|---|---|---|---|---|---|---|
| FeSi75 | 75 | 1.5 | 1.0 | 0.5 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi72 | 72 | 2.0 | 1.0 | 0.5 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi 70 | 70 | 2.0 | 1.0 | 0.6 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi65 | 65 | 2.0 | 1.0 | 0.8 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi 60 | 60 | 2.0 | 1.0 | 0.7 | 0.5 | 0.05 | 0.03 | 0.2 |
| FeSi45 | 45–47 | 2.0 | 1.0 | 0.8 | 0.5 | 0.04 | 0.02 | 0.2 |
Tighter aluminium txwv tsis pub muaj tsawg-aluminium FeSi72 qhov twg cov qib steel xav tau cov qib qis heev, thiab qhov sib xyaw ua ke tau pom zoo sib cais los ntawm cov txheej txheem.
Casting, Txias thiab Sizing
Cov kua ferrosilicon yog tapping rau hauv pwm los yog mus rau hauv lub txaj casting thiab tso cai rau kom khov rau hauv cov khaubncaws sab nraud povtseg. Kev tswj kom txias yog txhob txwm tshaj tawm: lub casting quenched sai dhau los ua nkig thiab tawg, tsim kev nplua ntau dhau, thaum lub txaj sab laug kub rau lub sijhawm ntev qeeb kom tawg. Tom qab solidification lub ingot yog crushed thiab tshuaj ntsuam.
Lub pob:10-30 mm, 30–50 mm, 50–100 mm, los yog loj raws li tus neeg yuav tsum tau muaj.
Briquette:50 × 50 mm nominal, los yog rau specification.
Granular:0.3–1 mm, 1–3 mm, 3–8 mm, los yog customized.
Hmoov:65 mesh, 200 mesh, 300 mesh lossis 325 mesh, ua los ntawm milling.
Sizing tseem ceeb vim hais tias kev coj tus cwj pwm nyob rau hauv lub ladle nyob ntawm qhov chaw saum npoo rau qhov ntim piv ntawm qhov sib ntxiv. Cov khoom zoo dissolves sai dua tab sis oxidises thiab plua plav tau yooj yim dua, thaum cov pob zeb ntxhib yaj maj mam thiab tuaj yeem pom tsis tau nyob hauv cov slag, yog li qhov loj me yog sib npaug li cas tus neeg siv khoom ntxiv cov khoom.
Kev Tswjhwm Zoo thiab ntim ntawm FeSi72
Cov qauv tso tawm yog muab los ntawm cov cam khwb cia txias dua li lub ladle, txij li kev sib cais thaum lub sij hawm solidification hloov qhov muaj pes tsawg leeg ntawm cov khoom xa tuaj. Silicon, aluminium, calcium, phosphorus, sulfur thiab carbon raug txiav txim siab ntawm txhua qhov ntau thiab sau tseg tiv thaiv tus naj npawb ntawm cov cua sov, nrog rau qib kev txwv raws li GB / T 2272 thiab cov txheej txheem xa khoom ntawm ISO 5445.
Cov khoom tau ntim rau hauv lub hnab ntim lossis hauv hnab me me ntawm 20, 25 lossis 50 kg hauv ib lub hnab tuj, nrog cov dej noo- cov ntaub ntawv pov thawj muaj rau kev thauj mus los hauv hiav txwv ntev lossis cov chaw ntub dej. Kev ntim khoom yog npaj kom haum rau cov neeg siv khoom tuav, thiab txhua lub hnab yog cim nrog qib thiab ntau kom cov khoom tuaj yeem taug qab rov qab mus rau qhov kev sib tw rau lub cub tawg uas tsim nws.
FAQ
Q: Dab tsi yog cov ntsiab lus ntawm silicon ntawm ferro silicon 72?
FeSi72 yog teev nyob rau ntawm qhov tsawg kawg nkaus ntawm 72% silicon, nrog txhuas tsis ntau tshaj 2.0%, calcium thiab manganese tsis ntau tshaj 1.0% thiab 0.5%, phosphorus tsis ntau tshaj 0.04% thiab sulfur tsis ntau tshaj 0.02%.
Q: FeSi72 txawv ntawm FeSi75 hauv kev tsim khoom li cas?
Txoj kev ntawm lub cub tawg yog tib yam; qhov sib txawv nyob rau hauv cov hlau ntxiv rau tus nqi, uas txo cov silicon rau hlau piv, thiab nyob rau hauv dav dav rau txhuas nyob rau hauv FeSi72 qib.
Q: Cov ntaub ntawv dab tsi uas xav tau los ua ferro silicon?
Quartzite los yog silica xuab zeb ua silicon qhov chaw, metallurgical coke los yog coke thiab charcoal blend raws li tus neeg sawv cev txo, thiab zeb nplai, hlau ore los yog hlau tig los muab cov hlau.
Q: Vim li cas hauv - txheej txheem kev tshuaj xyuas tseem ceeb rau FeSi72?
Vim tias lub nra hnyav thiab lub tshuab hluav taws xob thermal tshuav nyiaj li cas thaum lub sijhawm sib tw, thiab ntsuas cov yaj thaum nws tseem nyob hauv lub cub tawg tso cai rau cov hlau ntxiv lossis cov nqi txo kom raug kho ua ntej cov cua sov tawm mus.
Q: Qhov ntau thiab tsawg ntawm ferro silicon 72 muab?
Pob ntawm 10-30 hli mus txog 50-100 hli, briquettes txog 50 × 50 hli, granular feem ntawm 0.3-1 hli mus rau 3-8 hli, thiab milled hmoov los ntawm 65 mus rau 325 mesh.
Q: Yuav ua li cas yog ferro silicon 72 ntim rau export?
Nws tau muab tso rau hauv lub hnab ntim lossis hauv 20, 25 thiab 50 kg hnab hauv cov thawv ntim, nrog cov dej noo- cov ntaub ntawv pov thawj muaj, thiab txhua lub hnab nqa cov qib thiab ntau tus lej rau kev taug qab.
