Ferrosilicon granules, vim lawv cov yam ntxwv ua, muaj txiaj ntsig zooferrosilicon lumpsNtawm tib qib kawm nyob rau hauv cov nqe lus ntawm kev ua tau zoo, ua rau lawv xaiv cov kev xaiv uas xav tau rau kev lag luam:
Ntau dua kev sib cais ua haujlwm:Uniform loj (feem ntau 10-50mm), nrog rau qee thaj chaw thaj tsam 3-5 zaug uas ntawm Fesi Lumret, tso cai rau lub sijhawm Molten ntxiv los ntawm ntau dua 30% (piv txwv li,Fesi75Ferrosilicon granules yaj nyob rau hauv 5-8 feeb, thaum ferrosilicon thaiv ntawm tib tus qhab nia yuav tsum muaj 8-12 feeb), yog li txhim kho smelting efficiency thiab shortularing cycles.
Ntau ruaj khov deoxidation / inoculation cuam tshuam:Cov khoom sib txuas lus tsis sib xws Thaum lub sij hawm deoxidation, kev hloov pauv ntau ntawm cov ntsiab lus oxygen nyob rau hauv molten steelization tus nqi yog ntau dua lossis sib npaug lossis sib npaug ntawm kev sib luag, txo cov kev ua tau zoo, txo cov kev ua tau zoo hauv cov khoom siv.
Ntau dua cov khoom siv siab dua:Ferrosilicon granules muaj ntau dua huv si (impurities raug tshem tawm los ntawm kev sib tw thaum 5% kev rov qab los ntawm ferrosilicon tau noj ib chav ntawm cov khoom lag luam thiab cov nqi sib luag.
Kev phom sij ntawm qis dua ferrosilicon granules
Siv cov khoom siv qis dua ferrosilicon granules qhia ntau yam txaus ntshai rau kev tsim khoom, loj cuam tshuam cov khoom zoo thiab ntau lawm:
Nce SMELTING UNRISCTIONS:
Cov khoom siv qis dua ferrosilicon granules muaj ntau tshaj li 1% cao thiab mgenbing rauv taws hauv Molting cov cua sov, thiab ua rau muaj kev sib tw ntawm Molten, thiab ua rau muaj kev sib cav sib ceg, ua rau muaj kev sib tw,
Txo cov khoom lag luam:
Yog hais tias lub purity ntawm raw khoom quartz xuab zeb yog qhov tsis txaus (Si <97%), ua rau muaj 107%), ua rau muaj kev cuam tshuam rau cov qauv ntawm cov hlau / thiab tsis zoo.
Muaj nqi ntau lawm:
Tsawg dua ferrosilicon hais ua tsis tiav, nrog cov khoom sib dhos silicon tsis muaj 60% {}}}}}}} Cov khoom lag luam zoo tuaj yeem ncav cuag tau tshaj 85%). Ntxiv ferrosilicon yuav tsum tau ntxiv, thiab nce tus nqi sab nrauv vim tsis muaj kev tsis xws luag yuav nce cov nqi ntau lawm los ntawm ntau dua 20%.
Cov Txheej Txheem Zoo Tshaj Plaws Rau Cov Siab Tshaj Plaws Kub- Zoo Ferrosilicon hais
(1) Kev cim tshuaj lom neeg (cov tub ntxhais kawm)
Silicon Cov Ntsiab Lus:
Yuav tsum phim qib qib (piv txwv li, Ferro Silicon 75 hais muaj SI cov ntsiab lus ntawm 72% -80%,Fesi65Ferrosilicon hais tias muaj si cov ntsiab lus ntawm 60% -65%). Tsis txaus ntseeg yuav cuam tshuam ncaj qha deoxidation / Inoculation cuam tshuam.
Kob Txom Nyem Tswj:
CAO + MGO cov ntsiab lus tsawg dua los yog sib npaug rau 1%, al₂o₃ tsawg dua lossis sib npaug lossis sib npaug lossis sib npaug lossis 0.04% (xa mus rau GB / T 2272-2017 "Ferrosilicon"Txuj Ci). Qhov no tuaj yeem paub tseeb los ntawm thib peb {} {{{} Cov kab mob tshwj xeeb yog kev cuam tshuam nrog cov hluav taws xob lossis cov khoom siv hluav taws xob lossis cov khoom siv hluav taws xob ntawm cov khoom.
(2) Cov khoom siv raw traceability txiav txim
Quartz Xuab Zeb Zoo:
The raw material quartz sand for high-quality ferrosilicon particles must have a Si content ≥97%, and the particle size must meet production requirements (60-120mm quartz sand for large ferrosilicon furnaces, of which >80mm accounts for ≥50%; 25-80mm quartz sand for small furnaces, of which >40MM cov nyiaj rau ntau dua lossis sib npaug rau 50%). Tsis raug cai cov khoom siv me me yuav ua rau muaj cov qauv sab hauv cov qauv sab hauv thiab kev sib sau ua ke hauv cov ferrosilican hais.
Cov Txheej Txheem Ntau Lawm:
Thawj cov tuam ntxhab uas siv "crushing - multi - Sib Nqus Cov Khoom Noj, thiab cov khoom lag luam no tsis sib thooj nrog cov ntawv sau ua ke nrog cov ntawv sau ua ke, slag, thiab lwm yam impurities.
(3) tsos thiab lub zog kev soj ntsuam
Zog:
Siab - Zoo ferrosilicon granules yog silvery {1} grey} grey nrog metallic lus xeb, pub dawb los ntawm pom tseeb xeb thiab powdery impurities. Cov granules muaj kev tsis tu ncua (yam tsis muaj ntse los yog clumping).
Hardness thiab ntom:
Lawv tsis yooj yim tawg thaum ntaus nrog lub zog tawv. Lub ntom ntom yog kwv yees li 6.8-7.2 g / cm³. Yog tias qhov ntom ntom dhau tsawg (<6.5 g/cm³), there may be excessive internal porosity or impurities.
Particle loj faib:
Qhov loj sib txawv ntawm Fesi Granules nyob rau hauv tib lub batch yuav tsum tsawg dua lossis sib npaug ± 5 mm (rau 10-20 Mesh cov khoom, yuav tsum tsis muaj ntau ntawm cov lus<10 mesh or >20 mesh). Qhov loj tsis ncaj yuav ua rau muaj qhov sib txawv loj hauv kev sib cais, cuam tshuam cov tshuaj tiv thaiv kev ruaj ntseg.
(4) Thib peb -} kev ntsuas kev ntsuas
Yuav tsum tau muab cov neeg xa khoom muab cov ntawv qhia tshiab tsis ntev los no (piv txwv li cov ntawv qhia tseem ceeb
Kev kuaj thiab kuaj tuaj yeem ua ua ntej kev yuav khoom. Tshuaj lom neeg muaj pes tsawg leeg tuaj yeem kuaj pom tau siv ICP spectrometer, thiab particle loj xa tawm tuaj yeem lees paub siv laser installe loj censalyzer kom tsis txhob muaj batch yuav pitgrals.
Xaiv thiab Siv Kev Tiv Thaiv Kev Tiv Thaiv rau Ferrosilicon Granules
(1) Xaiv cov ntsiab lus
Xws li qib:
Rau steelmaking deoxidation, xaiv FESI75 High-} silicon ferrosilicon granules; Rau qhov ua tau zoo tib yam, xaiv FESI65 rau kev ua tau zoo dua.
Paub meej tias cov chaw tsim khoom lag luam:
Xaiv cov tuam txhab uas tsim khoom nrog cov ntawv tso cai ntau dua thiab cov koob npe zoo; Zam kev yuav khoom "peb {- Tsis muaj cov khoom lag luam" (cov khoom lag luam tsis muaj cov ntawv ceeb toom lossis xeem).
Kos npe rau daim ntawv cog lus zoo:
Qhia meej cov qauv kev lees txais rau cov tshuaj xyaw tshuaj, particle loj, thiab cov ntsiab lus los ntawm kev rov qab thiab sib pauv cov khoom lag luam rau cov khoom lag luam tsis muaj kev lag luam.
(2) Kev Siv Kev Pab Tiv Thaiv
Cia:
Khaws rau hauv ib puag ncig qhuav thiab cua kom tsis txhob muaj oxidation noo. Oxidized ferrosilicon granules yuav tsim ib qho sio₂ zaj duab xis ntawm lawv cov npoo av, txo kev sib tsoo.
Ntxiv txoj kev:
Siv "hauv {- txaus ntxiv ntxiv" thaum lub sij hawm statmaking; Ntxiv 1-2 feeb ua ntej cov hlau molten hlau tau raug muab rau thaum lub sijhawm ua kom tiav los ua kom tiav.
Ntsej Muag Dosage:
Xam cov nyiaj sib ntxiv (feem ntau 0.3% -0.7% ntawm cov xim hlau loj) raws li cov ntsiab lus ntawm Molygen kom tsis txhob ua rau raug nqi lossis ntau dua cov qauv sib xyaw.
