Tus yuam sij rau xaiv txoj caiFerro Silicon AlloyCov khoom lag luam rau koj cov kev xav tau yog ua ntej cov ntsuas kev ua haujlwm raws li cov xwm txheej stat, thiab tom qab ntawd ua rau muaj kev txiav txim siab, thiab tom qab ntawd ua rau muaj kev txiav txim siab, thiab tom qab ntawd cov txheej txheem kev txiav txim siab, thiab tom qab ntawd cov txheej txheem ntau lawm, tus nqi tswj, thiab kev ruaj khov ruaj khov.
Kauj ruam 1: Txheeb xyuas "Cov Kev Xav Tau"
Cov kev xav tau kev ua tau zoo rau FESI sib txawv heev hla cov xwm txheej sib txawv, yog li nws yog ib qho tseem ceeb kom xub txheeb xyuas cov ntawv thov. Nov yog thawj lub ntsiab cai ntawm kev xaiv. Cov ntsiab lus tseem ceeb rau cov xwm txheej sib xws yog qhia hauv cov lus hauv qab no:
| Daim Ntawv Thov Kev Pab Cuam | Cov yuav tsum tau ua (cov ntsuas muaj feem ua ntej) | Cov kev xav tau thib ob (cov ntsuas ntsuas) | Pom zoo cov qib |
| Steelmaking deoxidation / alloying |
1. Silicon cov ntsiab lus (txuam rau Deagidation muaj zog yuav tsum muaj ntawm qib steel) 2. Kev tsis txaus ntseeg (Al thiab C yuav tsum qis kom tsis txhob cuam tshuam rau cov hlau zoo) |
1. Qhov loj me (hloov kho tau rau cov khoom siv hluav taws xob steelmaking / hlau pub cov txheej txheem) 2. Qiv (ensuring melting efficiency) |
Fesi72, Fesi75 (Mainstream); Fesi90 rau cov hlau tshwj xeeb (siab silicon) |
| Cam khwb cia hlau inoculation / spheroiding |
1. Silicon cov ntsiab lus (ruaj khov graphitization, feem ntau 70% -75%) 2. Kev tsis txaus ntseeg (CA thiab AL yuav tsum tau tswj kom tsis txhob muaj hlau dawb cam khwb chaws) |
1. Qhov loj me (qog / granular, haum rau kev kho mob inoculation) 2. Kev sib xyaw ua ke (ua kom muaj txiaj ntsig batch stability) |
Fesi72, Fesi75 (inoculants); Fesimg (spheroiding tus neeg sawv cev) |
| Hlau txo qis (piv txwv li, magnesium smelting) |
1. Silicon Cov Ntsiab Lus (Silicon Cov Silicon nyiam txhim kho kev ua kom txo qis, feem ntau ntau dua lossis muaj sib npaug nrog 75%) 2. Tsawg Impurities (P thiab S C thiab S yuav tsum qis dua kom tsis txhob muaj cov khoom tsis huv) |
1. Lump Kev Ncaj Ncees (txo cov plua plav poob) 2. Ashivity (Haum rau kev txo cov txheej txheem rauv) |
Fesi75, fesi80, fesi90 |
| Vuam Rods / Tshuaj |
1. Silicon cov ntsiab lus (cov mis sib phim ua ke, feem ntau 65%% -75%) 2. Tsawg Impurities (C thiab S kom tsis txhob cuam tshuam rau Vuam Zoo / Tshuaj lom neeg cov tshuaj tiv thaiv) |
1. Hmoov qhov loj (tswj lub fineness yog tias yuav tsum muaj pulveration yuav tsum tau) 2. Cov ntsiab lus noo noo (noo noo - tsis kam los tiv thaiv clumping) |
Fesi65, Fesi72 (pulverize raws li xav tau) |
Kauj ruam 2: Tsom ntsoov rau cov tub ntxhais ua haujlwm thiab cov ntsiab lus xaiv tsis muaj
Tom qab kom paub meej daim ntawv thov, nws yog ib qho tsim nyog rau ntau qhov ntsuas tau ntawm ferrosilicon kom tsis txhob muaj kev sib haum xeeb vim yog kev saib xyuas tsuas yog ua raws qib thiab tsis quav ntsej cov ntsiab lus. Cov hauv qab no yog plaub qhov ntsuas tseem ceeb los xav txog:
1. Silicon (Si) Cov ntsiab lus: Kev txiav txim siab cov haujlwm tseem ceeb, txuam nrog kom tau
Silicon cov ntsiab lus yog "tus cim cim" ntawm Ferro silicon, cuam tshuam rau nws lub peev xwm deoxidation, cov txiaj ntsig inoculation, thiab txo kev ua tau zoo. Nws yuav tsum tau xaiv ncaj raws li cov txheej txheem yuav tsum tau ua:
Tsawg - silicon ferrosilicon (Si 40% -65%)
xws li Fesi45 thiabFERRO Silicon 65, tau muaj lub peev xwm deoxidation tsis muaj zog thiab yog feem ntau siv rau cov hlau dog dig thiab cov ntsiab lus qis silicon, lossis raws li qhov qis - tus nqi muab tub lim.
Nruab nrab - silicon ferrosilicon (Si 70% -75%)
xws liFesi72thiabFesi75, muab tus nqi zoo tshaj plaws rau nyiaj. Lawv yog cov kev xaiv thoob ntiaj teb rau kev phom sij thiab cam khwb cia hlau inoculation, npog tshaj li 80% ntawm cov ntawv thov kev lag luam.
High - silicon ferrosilicon (Si 80% -95%)
Xws li Fesi80 thiab Fesi90, muaj cov peev xwm muaj zog thiab siv rau cov hlau tshwj xeeb (xws li txo cov hlau tsis tiv thaiv), cov hlau nplaum txo, thiab ntau lawm. Txawm li cas los xij, cov khoom lag luam no yog kim, yog li tsis txhob saib xyuas.
2. Txhaum Txhaum: Tswj "Cov Khoom Siv Yuam Kev" kom tsis txhob muaj kev pheej hmoo
Impurities nyob rau hauv ferrosilicon (xws li al, c, c, thiab s) tuaj yeem cuam tshuam rau kev tsim khoom tom qab thiab yuav tsum tau nruj me ntsis raws li cov ntaub ntawv tshwj xeeb:
Steelmaking:
Ua ntej ua tiav al (txhuas) thiab c (carbon). Ntau qib al tau ua rau kev tsim kom muaj al₂oom suav hauv cov hlau, cuam tshuam nws cov tawv. Ntau qib C theem yuav ua rau tsawg- cov hlau hlau kom ntau dua cov roj carbon cov ntsiab lus; yog li ntawd, xaiv "Tsawg -}} Aluminium, Tsawg - carbon fesi72"(piv txwv li, ib tsawg dua los yog sib npaug rau 1.5%, c tsawg dua lossis sib npaug nrog 0.2%).
Nrum Hlau:
Nthuav cov kev tswj hwm ua CA (calcium) thiab AL (txhuas). Ntau qib CA tuaj yeem ua rau "cam khwb cia" (nyuaj thiab loj me) cam khwb cia hlau. Ntau dhau ib qib nce tuaj yeem kho cov nplej tab sis yooj yim tsim pores; Yog li ntawd, xaiv "qis - calcium fesi75" (piv txwv li, ca tsawg dua lossis sib npaug ntawm 1.0%).
Txo cov hlau:
Saib xyuas tus p (phosphorus) thiab s (Sulphur). P thiab s tuaj yeem paug cov khoom kom txo qis (piv txwv li, alloys); Yog li ntawd, xaiv "tsawg - phosphorus, qis} {} {} {}, p tsawg dua lossis sib npaug lossis sib npaug rau 0.02%);
Tshuaj Siv Tshuaj:
Qhov tsis tshua muaj impurities yuav tsum muaj, tshwj xeeb yog zam cov hlau hnyav (xws li PB thiab AS) los tiv thaiv lawv los ntawm kev txhaum txoj kev coj noj coj ua.
3. Qhov loj me: Haum rau cov txheej txheem txheej txheem los txhim kho kev ua tau zoo
Qhov loj ntawm ferrosilicon alloy (qog / cov hmoov) ncaj qha cuam tshuam rau cov qauv melting, thiab yuav tsum tau sib phim rau cov khoom siv (cov kev sib txuas, pub mis):
Converter / Fais arc rauve steelmaking:
Rau hauv - rauv kev them, xaiv10-50mm Lumps ntawm Ferrosilicon(Ntsuas kev nrawm thiab tsis txhob hlawv); rau ladle pub zaub mov, ferrosilicon yuav tsum tau granulated rau hauv 1-3mm hais (sib xws nrog cov hlau pub dawb);
Cam khwb cia hlau inoculation:
Rau cov txheej txheem flushing, xaiv 5 {{{{- 20mm me me lumps (rau sai melting thiab uniform inoculation); Rau hauv-kwj inoculation, tsoo lub ferrosilicon rau hauv 0.5-3mm hais (rau kev faib tawm tsis zoo li molten hlau ntws);
Hmoov metallurgy / vuam rods:
Zom covferrosilicon rau hauv 80-200 mesh hmoov(Cia ya raws mus tiv thaiv agglomeration).
Tshuav nqi thiab ua tau zoo, zam qhov kawg.
Thaum xaiv, zam kev tsom mus rau tus nqi lossis dig muag xaiv cov nqi siab. Tus nqi - muaj txiaj ntsig nyiaj yog qhov tseem ceeb heev. Qee qhov tsawg - priced ferrosilicon yuav muaj cov ntsiab lus silicon silicon (piv txwv li, fesi72, tab sis tsuas yog 70% SI) lossis AL> 3%). Cov no tuaj yeem ua rau cov txheej txheem tom ntej (piv txwv li, tsis txaus siab deoxidation hauv steelmaking steel, thiab thaum kawg ua kom muaj nqi.
