Ferro Alloys yog dab tsi?

Lub alloy yog ib qho sib tov los yog cov kua nplaum uas muaj cov hlau. Ib yam li ntawd, ferroalloy yog ib qho sib xyaw ntawm txhuas sib xyaw nrog lwm cov ntsiab lus xws li manganese, aluminium lossis silicon hauv qhov sib piv siab. Alloying txhim kho lub cev lub cev ntawm cov khoom siv, xws li ntom ntom, reactivity, Young's modulus, hluav taws xob conductivity thiab thermal conductivity. Yog li ntawd, ferroalloys nthuav tawm cov khoom sib txawv vim tias cov hlau sib txawv sib txawv hauv cov khoom sib txawv muaj ntau yam khoom. Tsis tas li ntawd, alloying kuj hloov cov khoom siv ntawm cov khoom siv niam txiv, ua kom tawv, toughness, ductility, thiab lwm yam.
Cov khoom siv Ferroalloy
Cov khoom tseem ceeb ntawm ferroalloys yog ferroaluminum, ferrosilicon, ferronickel, ferromolybdenum, ferrotungsten, ferrovanadium, ferromanganese, thiab lwm yam. Qhov sib txawv me ntsis ntawm qhov kub thiab txias, cua sov los yog muaj pes tsawg leeg tuaj yeem tsim cov alloys nrog cov khoom sib txawv kiag li. Cov kev siv tseem ceeb ntawm ferroalloys yog kev tsim kho pej xeem, kho kom zoo nkauj, tsheb, steel kev lag luam thiab cov khoom siv hluav taws xob. Kev lag luam steel yog cov neeg siv khoom loj tshaj plaws ntawm ferroalloys vim ferroalloys muab ntau yam khoom rau cov hlau alloys thiab stainless hlau.

Ferromolybdenum
Ferromolybdenum feem ntau yog siv rau hauv kev tsim cov hlau alloy los txhim kho lub hardness, toughness thiab hnav tsis kam ntawm hlau. Cov ntsiab lus molybdenum hauv ferromolybdenum feem ntau yog nruab nrab ntawm 50% thiab 90%, thiab kev siv sib txawv yuav tsum muaj cov ntsiab lus sib txawv ntawm ferromolybdenum.

Ferrosilicon
Ferrosilicon feem ntau muaj 15% mus rau 90% silicon, nrog cov ntsiab lus silicon siab. Ferrosilicon yog ib qho tseem ceeb ntawm cov khoom siv hlau, thiab nws daim ntawv thov tseem ceeb yog steel ntau lawm. Ferroalloys pab deoxidize hlau thiab ferrous hlau. Tsis tas li ntawd, nws kuj txhim kho hardness, lub zog thiab corrosion kuj. Tuam Tshoj yog tus tsim khoom tseem ceeb ntawm ferrosilicon.

Ferrovanadium
Ferrovanadium feem ntau yog siv los tsim cov hlau alloy los txhim kho lub zog, hardness thiab hnav tsis kam ntawm cov hlau. Cov ntsiab lus vanadium hauv ferrovanadium feem ntau yog nyob nruab nrab ntawm 30% thiab 80%, thiab kev siv sib txawv xav tau cov ntsiab lus sib txawv ntawm ferrovanadium.

Ferrochrome
Ferrochrome, tseem hu ua chromium hlau, feem ntau yog tsim los ntawm 50% mus rau 70% chromium los ntawm qhov hnyav. Hauv paus, nws yog ib qho alloy ntawm chromium thiab hlau. Ferrochrome feem ntau yog siv los tsim cov hlau, suav txog li 80% ntawm lub ntiaj teb kev noj.

Feem ntau hais lus, ferrochrome yog tsim nyob rau hauv hluav taws xob arc rauv. Cov txheej txheem tsim khoom yog qhov tseem ceeb ntawm cov tshuaj tiv thaiv carbothermic, uas tshwm sim ntawm qhov kub siab tshaj 2800 ° C. Yuav tsum muaj hluav taws xob ntau kom ncav cuag qhov kub siab no. Yog li ntawd, nws kim heev los tsim nyob rau hauv cov teb chaws uas muaj nqi hluav taws xob siab. Cov neeg tsim khoom tseem ceeb ntawm ferrochrome yog Tuam Tshoj, South Africa thiab Kazakhstan.

Ferrotungsten
Ferrotungsten feem ntau yog siv rau hauv kev tsim cov hlau alloy los ua kom cov tawv tawv, hnav tsis kam thiab kub tsis kam ntawm cov hlau. Cov ntsiab lus tungsten hauv ferrotungsten feem ntau yog nruab nrab ntawm 60% thiab 98%, thiab cov ntawv thov sib txawv xav tau cov ntsiab lus sib txawv ntawm ferrotungsten.
Kev tsim cov ferrotungsten feem ntau yog ua los ntawm blast furnace ironmaking lossis hluav taws xob rauv txoj kev. Nyob rau hauv blast furnace ironmaking, tungsten-muaj ore yog muab tso rau hauv lub cub tawg ua ke nrog coke thiab limestone rau smelting los tsim ferroalloys uas muaj tungsten. Hauv txoj kev siv hluav taws xob hluav taws xob, hluav taws xob arc rauv yog siv los ua kom sov thiab yaj cov khoom siv raw uas muaj tungsten los npaj ferrotungsten.

Ferrotitanium
Cov ntsiab lus titanium hauv ferrotungsten feem ntau yog nruab nrab ntawm 10% thiab 45%. Kev tsim cov ferrotungsten feem ntau yog ua los ntawm blast furnace ironmaking lossis hluav taws xob rauv txoj kev. Tuam Tshoj yog ib lub tuam txhab loj tshaj plaws ntawm ferrotungsten nyob hauv lub ntiaj teb.

Kev siv cov ferroalloys

Alloy steel ntau lawm
Ferroalloys yog ib qho tseem ceeb raw khoom rau kev ua hlau alloy. Los ntawm kev ntxiv ntau hom ferroalloys (xws li ferrochrome, ferromanganese, ferromolybdenum, ferrosilicon, thiab lwm yam) rau cov hlau, cov khoom ntawm cov hlau tuaj yeem txhim kho, xws li kev txhim kho hardness, lub zog, hnav tsis kam, corrosion resistance, thiab lwm yam. haum rau txawv engineering thiab manufacturing teb.
Cast hlau ntau lawm
cam khwb cia hlau yog ib qho khoom siv casting, thiab ferroalloys ua lub luag haujlwm tseem ceeb hauv kev tsim cov hlau cam khwb cia. Ntxiv ib qho kev faib ua feem ntawm ferroalloys tuaj yeem txhim kho cov khoom siv kho tshuab, hnav tsis kam thiab corrosion kuj ntawm cam khwb cia hlau, ua rau nws tsim nyog rau kev tsim cov khoom siv kho tshuab, cov khoom siv tsheb, cov kav dej, thiab lwm yam.

Kev lag luam fais fab
Ferroalloys kuj tseem siv rau hauv kev lag luam fais fab, xws li cov ntaub ntawv tseem ceeb rau lub zog hloov hluav taws xob. Alloy hlau muaj qhov sib nqus zoo permeability thiab qis hysteresis, uas tuaj yeem txo qhov poob ntawm lub zog hloov hluav taws xob.

Aerospace teb
Daim ntawv thov ntawm ferroalloys nyob rau hauv aerospace teb kuj tseem ceeb heev, xws li rau kev tsim khoom ntawm cov qauv thiab lub cav qhov chaw ntawm aircraft thiab foob pob ua ntxaij, uas yuav tsum tau cov khoom no kom muaj cov yam ntxwv xws li lub teeb yuag, siab zog thiab kub tsis kam.

Kev lag luam tshuaj
Hauv kev lag luam tshuaj, ferroalloys feem ntau yog siv los ua catalyst cab kuj nyob rau hauv cov organic synthesis tshuaj, roj purification thiab lwm yam txheej txheem.

Cov khoom siv refractory
Qee cov ferroalloys kuj tuaj yeem siv rau hauv kev npaj cov ntaub ntawv refractory los txhim kho qhov kub thiab txias ntawm cov ntaub ntawv. Lawv feem ntau siv rau hauv kev tsim cov khoom siv refractory hauv kev lag luam xws li hlau ua thiab steelmaking.