Dab tsi yogferrochrome?
Ferrochrome (FeCr) yog ib qho alloy ntawm chromium thiab hlau uas muaj nyob nruab nrab ntawm 50% thiab 70% chromium.Over 80% ntawm lub ntiaj teb no ferrochrome yog siv nyob rau hauv zus tau tej cov stainless hlau.Raws li cov ntsiab lus carbon, nws tuaj yeem muab faib ua: High carbon ferrochrome/HCFeCr(C: 4% -8%),Nruab nrab carbon ferro chrome/MCFeCr(C: 1% -4%),
Tsawg carbon ferrochrome/LCFeCr(C: 0.25% -0.5%),Micro carbon ferrochrome/MCFeCr:(C: 0.03-0.15%).
Dab tsi yog qhov zoo ntawm ferrochrome?
1. Ferro chromemuaj qhov zoo ntawm kev nce steel oxidation kuj nyob rau hauv cov txheej txheem ntawm steelmaking.
Nyob rau hauv cov txheej txheem steelmaking rau hauv ferrochrome tuaj yeem ua kom cov oxidation tsis kam ntawm cov hlau, cov chromium nyob rau hauv ferrochrome tuaj yeem tiv thaiv cov hlau zoo, kom nws cov oxidation qis qis kom nce oxidation tsis kam ntawm steel, muaj qhov zoo ntawm kev txhim kho cov kev pab cuam. lub neej ntawm steel;
2, Ntxiv qhov kev faib ua feem ntawm ferrochrome rau hauv cov hlau molten muaj qhov zoo ntawm kev txhim kho corrosion ntawm cov hlau.
Nyob rau hauv cov txheej txheem ntawm steelmaking, ntxiv ib co nyiaj ntawm ferrochrome nyob rau hauv kev faib ua feem rau cov ntsiab lus ntawm cov ntsiab lus nyob rau hauv molten steel yuav zoo txhim kho corrosion kuj ntawm hlau.Cov khoom chromium hauv ferrochrome tuaj yeem txuas tau zoo rau saum npoo ntawm cov hlau los muab cov txheej txheem rwb thaiv tsev, yog li muaj qhov zoo ntawm corrosion kuj.
3. Ferrochrome muaj qhov zoo ntawm kev txhim kho cov tawv tawv thiab hnav tsis kam ntawm cov hlau
Tam sim no cov txheej txheem steelmaking feem ntau yog muab tso rau hauv ferrochrome, qhov laj thawj tseem ceeb yog vim ferrochrome tuaj yeem txhim kho qhov nyuaj thiab hnav tsis kam ntawm cov hlau, chromium cov ntsiab lus hauv ferrochrome tsis yooj yim los ua ke nrog oxygen, yog li nws tuaj yeem txhim kho lub peev xwm ntawm steel oxidation. tsis kam, ntxiv rau, ferrochrome kuj tseem tuaj yeem ntxuav cov hlau impurities los txhim kho cov tawv tawv ntawm cov hlau.
Kev siv ferrochrome
①Utilised nyob rau hauv zus tau tej cov stainless hlau, Stainless hlau nyob ntawm chromium rau nws cov tsos thiab tsis kam mus corrosion.
② Raws li lub ntsiab alloy additive nyob rau hauv steelmaking
③Raws li indispensable additive nyob rau hauv tus txheej txheem ntawm tsawg carbon steel smelting
Post lub sij hawm: Feb-22-2021