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, siv zog ua kom tag nrho cov nickel oxide rau hauv cov xim hlau nickel. Thaum melted lub ferronickel yuav sib cais los ntawm lub lighter slag. Cov ntsiab lus npib tsib xee ntawm ferronickel nyob ntawm qhov kev xaiv ntawm cov txheej txheem txo ib nrab. Coke yog siv los ua tus neeg sawv cev txo qis, thiab ferrosilicon tuaj yeem siv los ua tus neeg sawv cev txo qis. Yuav kom tshem tawm impurities carbon, sulfur, phosphorus thiab chromium los ntawm crude ferronickel, refining yuav tsum tau nqa tawm.
Ferronickel yog refined los ntawm kev txo ib feem nrog cov pa roj carbon nyob rau hauv lub cub hluav taws xob. Cov ore raug txo rau ferronickel siv txoj kev carbothermal nyob rau hauv submersible arc rauv thiab tom qab refined.
Cov ntsiab lus ntawm cov ore siv yog: Ni2.8%, CoO0.06%, Fe13%, Cr2O32%, MgO24%, SiO239%, dej ua ke 12%. Tom qab cov ore no qhuav, nws yog muab tso rau hauv ib tug teb kiln thiab preheated rau txog 750 degree. Kev siv roj hnyav yog 65-85L ib tuj ntawm cov ore qhuav. Kwv yees li 4% coke hmoov yog ntxiv rau lub preheated kub ore, thiab ces cov sib tov yog smelted nyob rau hauv ib tug txo hluav taws xob rauv. Lub peev xwm ntawm submerged arc rauv yog 12500kV.A, lub electrode txoj kab uas hla yog 1250mm, thiab lub puab txoj kab uas hla ntawm lub cub tawg yog 11m. Lub zog noj ib tuj ntawm ore thaum smelting yog 600kW.h. Nws tuaj yeem smelt 450t ntawm ore txhua hnub, ferronickel tawm kub yog 1500 degree, thiab slag tawm kub yog 1600 degree.
Ntau tshaj 90% ntawm cov npib tsib xee nyob rau hauv tus nqi yog rov qab mus rau hauv cov xim nickel hlau nrog cov muaj pes tsawg leeg ntawm Ni + Co24%, Si3%, C2%, Cr1.6%, thiab P0.03%.
Cov sulfur raug tshem tawm los ntawm kev kho nws ob zaug nrog dej qab zib nyob rau hauv lub ladle, thiab cov chromium, silicon, carbon thiab phosphorus raug tshuab tawm hauv cov kua qaub converter. Cov ferronickel refined los ntawm lub cub tawg ntawm txog 1650 degree thiab muab pov rau hauv ingots hnyav txog 20kg. Cov khoom kawg muaj Ni + Co29%, C0.02%, Cr0.02%, thiab qhov sib npaug yog hlau.
Yog tias koj xav tau cov khoom lag luam zoo Inconel lossis lwm cov khoom lag luam Inconels & cov koom tes ua lag luam mus ntev, thov hu rau peb: https://www.xuruimetal.com
