Lub luag haujlwm thiab cov yam ntxwv ntawm ferronickel
Raws li cov khoom siv alloying ntxiv hauv kev lag luam steelmaking, nws tuaj yeem txhim kho lub zog flexural thiab hardness ntawm steel. Hauv cam khwb cia hlau, nws tuaj yeem ua rau nws cov qauv zoo ib yam thiab ua kom nws ceev. Nws kuj tseem siv tau los ua cov khoom siv ntxiv rau cov nickel-muaj los yog npib tsib xee-chromium-muaj cam khwb cia hlau yob thiab lwm yam casting alloys. .
Cov yam ntxwv zoo
Jagged tawg, cov ntxhia no tsis muaj ntau, nws yog tsim nyob rau hauv lumps thiab granular aggregates. Hlau grey, tsaus grey los yog dub, streak hlau grey. Opaque, tshiab nto yog xim hlau luster.
ferronickel smelting
Silicate oxide ore tuaj yeem smelted los ntawm pyrometallurgy, thiab nickel tuaj yeem tau los ntawm kev txo qis, melting thiab refining. Thaum txo qis, nws yog ib qho tsim nyog yuav tsum ua kom cov nickel oxide hloov pauv mus rau hauv cov xim hlau nickel. Lub ferronickel yuav sib cais los ntawm lub sib zog slag thaum melting. Cov ntsiab lus nickel ntawm ferronickel nyob ntawm qhov kev xaiv ntawm cov txheej txheem txo ib nrab. Coke yog siv los txo tus neeg sawv cev, thiab ferrosilicon tuaj yeem siv los ua tus neeg sawv cev txo qis. Yuav kom tshem tawm cov impurities carbon, sulfur, phosphorus thiab chromium nyob rau hauv crude ferronickel, refining yuav tsum tau nqa tawm.
Direct ib feem txo ntawm ferronickel nrog carbon nyob rau hauv lub cub hluav taws xob
Cov ore yog carbothermically txo mus rau ferronickel nyob rau hauv lub submerged arc rauv, ua raws li los ntawm refining.
Kev faib tawm ferronickel
Ferronickel feem ntau cais raws li saj, uas yog, cov ntsiab lus nickel. Txoj kev faib tawm nrov tshaj plaws hauv tsev yog faib ferronickel rau hauv qhov cub tawg ferronickel thiab hluav taws xob rauv ferronickel raws li cov khoom siv smelting. Ntawm lawv, qhov saj ntawm blast furnace ferronickel feem ntau yog tsawg, thiab feem ntau ntawm lawv muaj tsawg dua 8 feem pua nickel. , thiab lub tshuab hluav taws xob nickel hlau feem ntau muaj ntau dua 8 feem pua nickel.
Kev siv ferronickel
Qhov loj tshaj kev siv ferronickel yog rau stainless hlau nqi. Raws li kev hloov pauv rau npib tsib xee, nyob rau hauv ib txwm muaj, 200 series stainless hlau tuaj yeem siv ncaj qha rau qib qis ferronickel, thiab 300 series stainless hlau tuaj yeem siv 8 feem pua lossis ntau dua ferronickel.
