1. Metallic silicon hais txog cov khoom siv silicon ntshiab uas muaj cov ntsiab lus silicon ntau dua lossis sib npaug li 98.5%. Peb cov ntsiab lus impurity ntawm hlau, txhuas, thiab calcium (txheej txheem nyob rau hauv kev txiav txim) yog muab faib ua subcategories, xws li 553, 441, 331, 2202, thiab lwm yam. Ntawm lawv, 553 Metallic Silicon sawv cev hais tias cov hlau cov ntsiab lus ntawm no ntau yam ntawm hlau silicon. yog tsawg dua los yog sib npaug li 0.5%, cov ntsiab lus txhuas yog tsawg dua lossis sib npaug li 0.5%, thiab cov ntsiab lus calcium tsawg dua lossis sib npaug li 0.3%; 331 Metallic Silicon sawv cev tias cov ntsiab lus hlau tsawg dua lossis sib npaug li 0.3%, cov ntsiab lus ntawm txhuas yog tsawg dua lossis sib npaug li 0.3%, thiab cov ntsiab lus calcium tsawg dua lossis sib npaug li 0.3%. Tsawg dua lossis sib npaug li 0.1%, thiab lwm yam. Vim yog vim li cas, 2202 hlau silicon kuj yog abbreviated li 220, uas txhais tau hais tias calcium tsawg dua los yog sib npaug rau 0.02%.
Kev siv tseem ceeb ntawm kev lag luam silicon: Cov khoom siv silicon yog siv los ua ib qho ntxiv rau cov hlau tsis yog hlau. Kev lag luam silicon kuj tseem siv los ua tus neeg sawv cev rau cov hlau silicon steel nrog cov kev cai nruj thiab ua cov deoxidizer rau smelting tshwj xeeb hlau thiab tsis-ferrous alloys. Tom qab cov txheej txheem ntau lawm, cov khoom siv silicon tuaj yeem rub mus rau hauv ib qho siv lead ua silicon siv rau hauv kev lag luam hluav taws xob thiab hauv kev lag luam chemical rau silicon, thiab lwm yam. Yog li ntawd, nws yog lub npe hu ua cov hlau khawv koob thiab muaj ntau yam kev siv.
2. Ferrosilicon yog tsim los ntawm coke, steel scraps, quartz (los yog silica) raws li raw cov ntaub ntawv thiab smelted nyob rau hauv lub submerged arc rauv. Silicon thiab oxygen yooj yim ua ke los ua silica. Yog li ntawd, ferrosilicon feem ntau yog siv los ua deoxidizer hauv steelmaking. Nyob rau tib lub sijhawm, vim tias SiO2 tso tawm ntau cov cua sov thaum nws tsim tawm, nws kuj tseem muaj txiaj ntsig los ua kom kub ntawm cov hlau molten thaum deoxidizing.
Ferrosilicon yog siv los ua cov khoom sib xyaw. Nws yog dav siv hauv cov hlau tsis tshua muaj hlau, cov hlau sib txuas, lub caij nplooj ntoos hlav steel, cov kabmob hlau, cov hlau tsis muaj cua sov thiab hluav taws xob silicon steel. Ferrosilicon feem ntau siv los ua tus neeg sawv cev txo qis hauv ferroalloy thiab tshuaj lom neeg kev lag luam. Cov ntsiab lus silicon ncav cuag 95% -99%. Ntshiab silicon feem ntau yog siv los ua ib qho siv lead ua silicon lossis npaj cov hlau tsis muaj hlau.
Kev Siv: Ferrosilicon yog dav siv hauv kev lag luam steel, kev lag luam hauv kev lag luam thiab lwm yam lag luam.
Ferrosilicon yog ib qho tseem ceeb deoxidizer hauv kev lag luam steelmaking. Hauv steelmaking, ferrosilicon yog siv rau nag lossis daus deoxidation thiab diffusion deoxidation. Cib hlau kuj tseem siv los ua tus neeg sawv cev alloying hauv steelmaking. Ntxiv qee qhov nyiaj ntawm silicon rau cov hlau tuaj yeem txhim kho lub zog, hardness thiab elasticity ntawm cov hlau, ua kom cov hlau nplaum permeability ntawm cov hlau, thiab txo cov hysteresis poob ntawm transformer steel. General steel muaj 0.15% -0.35% silicon, structural steel muaj 0.40% -1.75% silicon, cov cuab yeej steel muaj 0.30% -1.80% silicon, caij nplooj ntoos hlav steel muaj 0.40% -2.80% silicon, thiab stainless acid-resistant steel muaj Silicon 3.40% ~ 4.00%, kub-resistant steel muaj silicon 1.00% ~ 3.00%, silicon steel muaj silicon 2% ~ 3% los yog siab dua. Hauv kev lag luam steelmaking, txhua tuj ntawm cov hlau siv kwv yees li 3 mus rau 5kg ntawm 75% ferrosilicon.
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