Nqe Snapshot rau Ferrosilicon thiab Silicon Carbide
Suav export ferrosilicon tau hais ntawm 1,120-1,150 USD ib tonne FOB Tianjin Chaw nres nkoj rau qib 75 thiab 1,050-1,070 USD ib tonne rau qib 72. Qhov kwv yees li 70 USD rau ib tonne qhov sib txawv ntawm ob qhov cuam tshuam ob qho tib si silicon ntxiv uas muaj nyob rau hauv qib 75 thiab kev tswj tsis huv nruj dua xav tau kom ncav cuag nws.
| Khoom | Qib | Nqe lus | Hauv paus |
|---|---|---|---|
| Ferrosilicon | 75 | 1,120-1,150 USD ib tonne | FOB Tianjin Chaw nres nkoj |
| Ferrosilicon | 72 | 1,050-1,070 USD ib tonne | FOB Tianjin Chaw nres nkoj |
Hauv Suav teb, qis-aluminium ferrosilicon nyob rau hauv ntuj thaiv daim ntawv pauv ntawm 6,900-6,950 yuan ib tonne rau Si75Al qis dua 0.1% thiab 6,600-6,650 yuan ib tonne rau Si75Al hauv qab no ntau yam ntawm 0.5%, thiab nyob rau hauv tib lub Mongo Qia Silicon carbide nyob rau tib lub sijhawm tau hais tawm ntawm 5,450-5,500 yuan ib tonne rau qib 98 thiab 4,450-4,500 yuan ib tonne rau 88 qib nyob rau sab qaum teb sab hnub poob, nrog Gansu thiab Ningxia qhia cov lej tib yam. Tag nrho cov nuj nqis no yog ex-works, se-inclusive references es tsis yog muab khi, thiab txhua tus neeg tsim khoom teev nws tus kheej tus nqi raws li nws tus nqi txoj hauj lwm.
Qib Definitions thiab Composition
Tsev neeg ferrosilicon yog txhais los ntawm nws cov ntsiab lus silicon, thiab cov qib kev lag luam muaj npe rau cov npe nominal: FeSi 75, FeSi 72 thiab FeSi 65. GB/T 2272-2020, Suav teb chaws tus qauv rau ferrosilicon, teev tawm qib tsev neeg calcium horsp hor, corres thiab corres. sulphur, thaum ASTM A100 / A100M thiab ISO 5445: 1980 npog tib yam khoom rau kev cog lus xa tawm. Aluminium yog qhov thib ob tseem ceeb tshaj plaws specification daim duab tom qab silicon, vim hais tias txhuas nqa mus rau hauv lub yaj cov ntaub ntawv nyuaj alumina inclusions uas yog nyuaj rau tshem tawm thiab degrade qaug zog kev kawm nyob rau hauv bearing thiab caij nplooj ntoos hlav steels. Qhov no yog vim li cas cov qib qis-aluminium hais kom tus nqi them thiab vim li cas cov txhuas txwv, tsis yog silicon daim duab, feem ntau yog thawj kab ntawm kev nug.
Deoxidation thiab Alloying hauv Steelmaking
Nyob rau hauv ob qho tib si hluav taws xob arc thiab yooj yim oxygen furnaces, thiab dua thaum lub sij hawm kho ladle, silicon reacts nrog yaj oxygen los ua silica uas nce mus rau hauv lub slag. Tshem tawm cov pa oxygen txo qhov porosity ntawm cov khoom cam khwb cia thiab txhim kho kev huv hauv. Tib qhov sib ntxiv kuj tseem ua raws li cov khoom siv alloying hauv cov khoom siv hluav taws xob, qhov twg cov ntsiab lus silicon tswj tau nce qhov kev tiv thaiv thiab txo cov tub ntxhais poob, uas yog qhov tso cai rau lub tshuab hluav taws xob thiab lub cev muaj zog laminations khiav txias dua. FeSi 75 yog qhov zoo dua qhov uas qhov hnyav ntxiv yuav tsum tau khaws cia qis, vim tias nws xa cov silicon feem ntau ntawm cov khoom siv, thaum FeSi 72 yog ib qho kev xaiv uas tus nqi thiab muaj teeb meem ntau dua li ob peb lub ntsiab lus kawg ntawm silicon.
Inoculation nyob rau hauv Cast Iron
Nyob rau hauv foundries, ferrosilicon yog ntxiv raws li ib tug inoculant tam sim ntawd ua ntej los yog thaum lub sij hawm pouring. Cov kev kho mob tswj cov duab thiab kev faib tawm ntawm graphite thiab suppresses txias, tawv dawb - hlau qauv uas tsim thaum ib qho nyias nyias txias sai heev. Ib tug raug inoculated hlau yog ntau machinable, tsis tshua muaj rau brittle ntug qauv thiab ntau zoo ib yam ntawm tuab thiab nyias seem ntawm tib casting. FeSi 65 feem ntau siv rau lub luag haujlwm no, thaum qib siab dua - silicon ua haujlwm rau ob qho tib si inoculation thiab bulk silicon ntxiv rau lub hauv paus hlau.
Ordering thiab Txais Cov Ntsiab Lus
Qhov luaj li cas yuav tsum tau pom zoo ua ntej qib, vim hais tias ob feem ntau feem ntau, 10-50 mm thiab 10-100 mm, coj txawv txawv nyob rau hauv ib tug them lub thoob thiab nyob rau hauv ib tug ladle. Kev tshuaj xyuas tshuaj yuav tsum tau tshaj tawm ntawm cov qauv coj los ntawm cov khoom xa tuaj, npog silicon, aluminium, calcium, carbon, phosphorus thiab sulfur. Lumps yuav tsum muaj suab nrov thiab tsis pub pom slag, thiab nplua raws li qhov tsawg kawg nkaus tau pom zoo yuav tsum raug txwv los ntawm kev tshuaj xyuas ntawm qhov chaw nres nkoj. Vim hais tias ferrosilicon raug muag ib tonne, tus nqi ntawm ib chav tsev ntawm silicon yog cov duab uas yuav tsum tau muab piv rau cov qib thiab nruab nrab ntawm cov quotations nyob rau hauv sib txawv bases, thiab tej quotation uas tsis nyob rau tib lub sij hawm xa khoom yuav tsum tau kho ua ntej sib piv.
Cov lus nug nquag
Q:Dab tsi yog tus nqi xa tawm rau ferrosilicon?
A: 1,120-1,150 USD ib tonne FOB Tianjin Chaw nres nkoj rau qib 75 thiab 1,050-1,070 USD ib tonne rau qib 72.
Q:Tus nqi qis -aluminium ferrosilicon nqi dab tsi hauv Suav teb?
A: 6,900-6,950 yuan ib tonne rau Si75Al qis dua 0.1% thiab 6,600-6,650 yuan ib tonne rau Si75Al qis dua 0.5%, ex-works thiab se suav nrog, hauv Qinghai thiab Inner Mongolia.
Q:Vim li cas qis - qib aluminium coj tus nqi?
A: Aluminium cov ntaub ntawv nyuaj alumina inclusions nyob rau hauv yaj, thiab cov inclusions txo qaug zog lub neej nyob rau hauv bearing thiab caij nplooj ntoos hlav steels, yog li nruj aluminium txwv tsis pub them rau.
Q:Dab tsi yog ferrosilicon siv rau hauv cam khwb cia hlau?
A: Nws yog siv los ua ib qho inoculant los tswj cov duab graphite thiab txo qis, uas txhim kho kev ua haujlwm thiab tiv thaiv cov qauv nkig hauv cov ntu nyias.
Q:Cov qauv twg npog ferrosilicon?
A: GB / T 2272-2020 hauv Suav teb, thiab ASTM A100 / A100M thiab ISO 5445: 1980 rau daim ntawv cog lus xa tawm.
Q:Yuav ua li cas hais txog cov ntsiab lus sib txawv?
A: Hloov lawv mus rau tus nqi ib chav tsev ntawm cov khoom siv silicon ntawm qhov khoom xa tuaj zoo ib yam, txij li FOB thiab ex- cov nqi ua haujlwm muaj cov nqi sib txawv.