Yuav Ua Li Cas Ua Fe-tungsten?

Yuav ua li casferrotungsten muaj?

Cov txheej txheem agglomeration siv lub qhov cub hluav taws xob qhib uas tuaj yeem txav mus los ntawm cov ntsia hlau thiab sab sauv ntawm lub qhov cub lub cev yog detachable, thiab carbon yog siv los ua tus neeg sawv cev txo. Cov nqi sib xyaw ua ke ntawm cov tungsten ore refined, pitch coke (los yog roj av coke) thiab slagging tus neeg sawv cev (bauxite) yog ntxiv rau lub qhov cub hauv batch. Cov hlau refined nyob rau hauv lub cub tawg yog feem ntau viscous. Raws li lub thickness nce, qhov qis dua maj mam solidification. Thaum lub cub tawg puv, nres lub qhov cub, rub tawm lub cub tawg, thiab tshem tawm sab sauv ntawm lub qhov cub kom cia cov agglomerate condense. Tom qab ntawd cov clots raug muab tshem tawm, crushed thiab tiav; cov npoo, slag thiab cov khoom tsis tsim nyog raug xaiv tawm thiab xa rov qab mus rau lub qhov cub kom rov ua dua. Cov khoom muaj li 80% tungsten thiab tsis ntau tshaj 1% carbon.

Txoj kev rho tawm hlau yog tsim rau smelting FeW uas muaj 70% tungsten nrog rau qhov qis melting point. Silicon thiab carbon yog siv los txo cov neeg ua haujlwm; Kev ua haujlwm tau muab faib ua peb theem: txo qis (tseem hu ua slag depletion), refining thiab hlau extraction. Hauv theem txo qis, muaj cov slag uas muaj ntau tshaj 10% WO3 tshuav ntawm lub cub tawg dhau los, thiab tom qab ntawd ntxiv cov khoom siv ntawm tungsten concentrate, thiab tom qab ntawd ntxiv ferrosilicon uas muaj 75% silicon thiab ib qho me me ntawm pitch coke (los yog roj av) Coke) raug txo kom smelting, thiab cov slag raug tso tawm thaum WO3 cov ntsiab lus ntawm slag poob qis dua 0.3%. Tom qab ntawd nws txav mus rau theem refining, thaum lub sij hawm uas tungsten concentrate thiab pitch coke sib xyaw yog ntxiv rau hauv cov khoom siv, ua haujlwm ntawm qhov hluav taws xob ntau dua, thiab cov impurities xws li silicon thiab manganese raug tshem tawm ntawm qhov kub siab dua. Tom qab coj cov qauv rau kev soj ntsuam thiab paub tseeb tias cov khoom xyaw tsim nyog, cov hlau rho tawm pib. Yav dhau los, steel ladles tau siv los khawb tawm cov hlau thaiv thiab muab tso rau hauv lub pas dej. Nyob rau hauv thaum ntxov 1960s, Jilin Ferroalloy Factory tau hloov mus rau cov cuab yeej siv hlau rho tawm, uas txhim kho kev ua haujlwm. Thaum lub sij hawm rho tawm hlau, tungsten concentrate thiab asphalt coke cov ntaub ntawv yog tsim nyog ntxiv raws li lub cub tawg. Kev siv hluav taws xob smelting yog li 3000 kilowatt teev / tuj, thiab tungsten rov qab tus nqi yog li 99%.

Cov txheej txheem thermite Yuav kom siv cov khib nyiab cemented carbide hmoov tungsten cobalt cais cov regenerated tungsten carbide tom qab cobalt extraction, thermite hlau tungsten txheej txheem tau tsim, siv regenerated tungsten carbide thiab hlau li raw cov ntaub ntawv, siv txhuas raws li tus neeg sawv cev txo, thiab siv cov tungsten. carbide nyob rau hauv lub tshav kub lub zog ntawm nws tus kheej carbon thiab txhuas combustion converts tungsten thiab hlau nyob rau hauv cov ntaub ntawv raw mus rau Ferrotungsten Alloy, uas yuav txuag tau hluav taws xob ntau zog thiab txo nqi. Nyob rau tib lub sijhawm, txij li cov impurities nyob rau hauv cov khoom siv raw tungsten carbide qis dua cov hauv tungsten concentrate, cov khoom zoo siab dua li ntawm Wolfram ferroalloy raws li tungsten concentrate. Tus nqi rov qab ntawm tungsten kuj siab dua li cov txheej txheem siv tungsten concentrate li raw khoom.

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