Ferro Silicon 70/72 (3mm ~ 10mm) yog tus hwm ferroalloy categorized los ntawm nws cov ntsiab lus silicon -kwv yees li 70% rau FeSi70 thiab 72% rau FeSi72. Feem ntau yog tsim los ntawm silicon (Si) thiab hlau (Fe) nrog cov khoom siv ruaj khov thiab cov qib impurity tsawg (carbon, sulfur, phosphorus, aluminium, thiab lwm yam), nws ua kom muaj kev ua haujlwm zoo ib yam hauv cov ntawv thov kev lag luam. Cov khoom lag luam muaj qhov loj me ntawm 3mm ~ 10mm (nrog rau qhov ntau thiab tsawg tuaj yeem hloov tau zoo li 0 ~ 1mm, 1 ~ 3mm, 10 ~ 50mm, 10 ~ 60mm, 10 ~ 100mm), muab cov khoom sib xyaw ua ke uas ua kom muaj txiaj ntsig sib xyaw nrog lwm cov ntaub ntawv raw. Ntim nyob rau hauv ton hnab los yog raws li ib tug neeg yuav tsum tau, nws yog dav siv nyob rau hauv steelmaking thiab casting industries.

Core Properties

Kev ruaj ntseg: Txhim khu kev ntseeg tau ntawm silicon thiab hlau cov ntsiab lus kom ua tau zoo ib yam ntawm cov khoom siv ntau lawm.

Tsawg Impurities: Minimized teeb meem impurities tiv thaiv qhov zoo ntawm cov hlau tiav thiab castings.

Optimal Particle Loj: 3mm ~ 10mm granularity txhawb kev sib xyaw nrog cov hlau molten, txhim kho cov tshuaj tiv thaiv thiab cov khoom lag luam zoo.

Muaj zog Reactivity: Silicon exhibits high oxygen affinity, enabling zoo deoxidation thiab alloying teebmeem.

ferrosilicon particles

tshuaj muaj pes tsawg leeg

Qib	Chemical Composition (ntau feem)%
	Si	Al	Ca	Mn	Cr	P	S	C
	Ntau dua lossis sib npaug	Tsawg dua los yog sib npaug
FeSi75Al0.5-A	74.0~80.0	0.5	1	0.4	I0.3	0.035	0.02	0.1
FeSi75Al0.5-B	72.0~80.0	0.5	1	0.5	0.5	0.04	0.02	0.2
FeSi75Al1.0-A	74.0~80.0	1	1	0.4	0.3	0.035	0.02	0.1
FeSi75Al1.0-B	72.0~80.0	1	1	0.5	0.5	0.04	0.02	0.2
FeSi75Al1.5-A	74.0-80.0	1.5	1	0.4	0.3	0.035	0.02	0.1
FeSi75Al1.5-B	72.0~80.0	1.5	1	0.5	0.5	0.04	0.02	0.2
FeSi75Al2.0-A	74.0~80.0	2	1	0.4	0.3	0.035	0.02	0.1
FeSi75Al2.0-B	72.0~80.0	2		0.5	0.5	0.04	0.02	0.2
FeSi75-A	74.0~80.0			0.4	0.3	0.035	0.02	0.1
FeSi75-B	72.0~80.0			0.5	0.5	0.04	0.02	0.2

Cov txheej txheem ntau lawm

Kev xaiv raw khoom

High-purity silica, siab- zoo hlau ore los yog cov hlau seem, thiab coke uas ua tau raws li qhov yuav tsum tau raug xaiv los ua cov khoom siv tseem ceeb. Cov ntsiab lus ntawm silicon dioxide nyob rau hauv silica feem ntau yuav tsum tau siab tshaj 95% los xyuas kom meej tias lub hauv paus ntawm silicon txaus thiab qhov zoo yog txhim khu kev qha; cov ntsiab lus hlau ntawm cov hlau ore los yog cov khoom seem hlau yuav tsum ua tau raws li cov qauv tsim kom muaj kev ruaj khov ntawm cov khoom hlau; coke, raws li tus neeg sawv cev txo qis, yuav tsum muaj cov ntsiab lus siab ruaj khov thiab tsis muaj impurities xws li tshauv thiab sulfur los xyuas kom meej tias cov tshuaj tiv thaiv txo tau ua tiav.

Smelting txheej txheem

Cov ntaub ntawv raw pretreated yog ntxiv rau lub cub hluav taws xob hauv ib qho kev faib ua feem rau smelting. Nyob rau hauv qhov kub thiab txias, silicon nyob rau hauv lub silica yog txo los ntawm coke thiab tsim ib tug ferrosilicon alloy nrog hlau. Thaum lub sij hawm smelting txheej txheem, tsis xws li rauv kub, slag muaj pes tsawg leeg, thiab lub hwj chim mov system yuav tsum tau nruj me ntsis tswj xyuas kom meej tias cov tshuaj muaj pes tsawg leeg thiab lub cev lub cev ntawm ferrosilicon ua tau raws li qhov yuav tsum tau.

Crushing thiab tshuaj ntsuam

Tom qab txias, ferrosilicon alloy ingots tau los ntawm smelting yog crushed rau hauv me me blocks los ntawm crushing khoom, thiab ces soj ntsuam. Ferrosilicon hais nrog qhov loj ntawm 3-10mm raug xaiv los ua cov khoom tiav, thaum cov khoom tsis ua raws li qhov yuav tsum tau muaj yog xa rov qab rau kev sib tsoo lossis siv los ua cov khoom siv raw rau lwm yam khoom tshwj xeeb.

Daim ntawv thov thiab qhov zoo

Cov ntawv thov tseem ceeb

Steelmaking Deoxidizer:

Silicon reacts nrog oxygen hauv molten steel los tsim silicon dioxide, txo cov pa oxygen thiab txo qhov tsis xws luag xws li pores thiab inclusions, txhim kho steel zoo.

Steelmaking Alloying Agent:

Kho steel muaj pes tsawg leeg los txhim kho txhua yam khoom (lub zog, hardness, elastic txwv) thiab kev ua tau zoo (castability, weldability) rau ntau qib steel.

Casting Inoculant:

Optimizes graphite kev loj hlob thiab faib nyob rau hauv cam khwb cia hlau, refining grain qauv thiab txhim kho txhua yam khoom (lub zog, toughness, hnav tsis kam) ntawm castings.