Ferroalloys muaj ntau txoj haujlwm hauv kev lag luam, nrog rau kev siv dav thiab kev ua haujlwm zoo, xws li ferrosilicon, ferromanganese, recarburizer, silicon slag, thiab lwm yam. Txhua yam khoom muaj qhov sib txawv, thiab feem ntau tuaj yeem muab faib ua pawg hauv qab no:
Deoxidizer: tshem tawm cov pa oxygen los ntawm cov hlau molten thaum lub sij hawm ua cov txheej txheem steel, thiab qee cov ferroalloys tuaj yeem tshem tawm lwm cov impurities hauv cov hlau xws li sulfur thiab nitrogen;
Alloy additives: Raws li cov kev cai ntawm cov hlau muaj pes tsawg leeg, cov ntsiab lus alloy yog ntxiv rau cov hlau los txhim kho kev ua haujlwm ntawm cov hlau;
Inoculants: Ntxiv rau molten hlau ua ntej cam khwb cia hlau casting los txhim kho cov qauv crystallization ntawm castings;
Reductant: Reductant rau zus tau tej cov ferroalloys thiab non-ferrous hlau los ntawm metallothermal txo; alloy additive rau non-ferrous alloys; kuj siv tau me me hauv kev lag luam tshuaj thiab lwm yam lag luam.
