Cov hlau nyob rau hauv ferrosilicon yog los ntawm steel scraps nyob rau hauv tus nqi. Raws li cov kev xav tau zoo ntawm ferrosilicon, tsuas yog cov pa roj carbon zoo tib yam tau tso cai rau siv thaum lub sijhawm smelting, thiab cov hlau tsis muaj hlau tsis raug tso cai, xws li cov hlau tsis muaj chromium, siab manganese steel, uas muaj cov manganese siab, thiab lwm yam.
Yog li ntawd, ferrosilicon manufacturers siv alloy steel scraps rau smelt ferrosilicon yuav ua rau cov khoom pov tseg. Cov npua hlau tsis tuaj yeem siv los ntawm vim lawv cov ntsiab lus phosphorus siab. Cov khoom siv hlau tsis muaj hlau xws li tooj liab, txhuas, thiab lwm yam tsis tuaj yeem siv rau smelting ferrosilicon. Yog li ntawd, txhawm rau kom ntseeg tau qhov zoo ntawm ferrosilicon, tsuas yog cov khoom siv hlau los ntawm cov pa roj carbon zoo tib yam raug tso cai siv thaum smelting.
Cov hlau nplaum hnyav hnyav tsis tuaj yeem siv vim tias lawv muaj ntau yam impurities thiab cov ntsiab lus hlau tsis yooj yim rau kev tswj xyuas thaum smelting. Nyob rau tib lub sijhawm, rusted steel scraps loj heev muaj zog tsis zoo thiab ntau cov hmoov, uas cuam tshuam rau huab cua permeability ntawm cov khoom nto thaum ntxiv rau lub cub tawg. Yog li ntawd, ntau lub tuam txhab ferrosilicon hauv kuv lub tebchaws tau teev tseg tias cov ntsiab lus hlau ntawm cov khoom siv hlau yuav tsum muaj ntau dua 95%, thiab qhov saum npoo yuav tsum huv si yam tsis muaj impurities pom tseeb.
